Rocky Mountain Herbarium (RM), University of Wyoming
https://rmh.uwyo.edu/data/search.php

Database Search Results

614 matching records found (of 614).
Search query: Genus begins with Cirsium, Species begins with undulatum, (search polygon not defined)
Sorted by: Scientific Name

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1.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Northern Absaroka Area: Shoshone National Forest: Northern Absaroka Wilderness: Dead Indian Creek Trail, ca 21 air mi NW of Cody.  Elev. 6100-6400 ft.
T55N R104W S18 E1/2.  44.7467 N, 109.4352 W.  
Sagebrush slopes with scattered limber pine, juniper, and spruce/fir forest in moist areas. Phenology: flowering. 

David Rosenthal, 2597.  7/18/1997. 		USFS 854054	Barcode: USFS0037890
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2.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Northern Absaroka Area: east side of Sheep Mountain, ca 11 air mi SW of Cedar Mountain.  Elev. 5600-6600 ft.
T51N R104W S11.  44.4066 N, 109.3253 W.  
Sedimentary slopes with wet spots. Phenology: flowering. 

Ronald L. Hartman, 58794.  7/26/1997. 		USFS 854053	Barcode: USFS0037889
     with Jim Fowler
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3.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: along Alkali Draw above Buffalo Creek Road, ca 1.5 air mi NW of Goose Butte, ca 9.5 air mi W of Upton.  Elev. 4450-4480 ft.
T48N R66W S32 NW1/4.  44.0902 N, 104.8118 W; uncertainty 0.5 mi..  
Grassy slopes along the draw. Phenology: flowering. 

B. E. Nelson, 57342.  7/11/2002. 		RM 
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4.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: tributary of Mule Creek, 6.5 mi SE of Mule Creek Junction on U.S. Hwy 18, ca 36 air mi S of Newcastle; ca 42 air mi NNE of Lusk.  Elev. 4000-4100 ft.
T39N R61W S36 NE1/4.  43.3193 N, 104.1307 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Gently sloping grassland, soils somewhat clayey. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 1010.  7/3/2002. 		RM 
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5.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: Cracker Creek on County Road 68, ca 25 air mi NNE of Weston; ca 40 air mi NNE of Gillette.  Elev. 3900-4020 ft.
T55N R68W S16 NE1/4.  44.7467 N, 105.0355 W; uncertainty 0.5 mi..  
Creek bed. Phenology: flowering. 

Peter J. Ebertowski, 1318.  7/7/2002. 		RM 
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6.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: right of way on County Road 68, ca 16.5 air mi ENE of Weston; ca 37 air mi NE of Gillette.  Elev. 4080-4100 ft.
T54N R68W S15 N1/2.  44.6586 N, 105.0152 W; uncertainty 1 mi..  
Side of road. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 1361.  7/7/2002. 		RM 
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7.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: spring and head of Holmes Creek on Payne or Forest Road 934, ca 18 air mi SE of Wright; ca 26 air mi N of Bill.  Elev. 4800-4910 ft.
T42N R70W S23 SE1/4.  43.6009 N, 105.2295 W; uncertainty 0.5 mi..  
Creek bed. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 1874.  7/17/2002. 		RM 
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8.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Cow Creek Buttes on East Bill or Forest Road 958, ca 43 air mi NNE of Douglas; ca 41 air mi SE of Wright.  Elev. 4640-4800 ft.
T38N R68W S1 NW1/4.  43.2982 N, 104.9708 W; uncertainty 0.5 mi..  
Creek bed. Phenology: flowering. 

Peter J. Ebertowski, 2090.  7/22/2002. 		RM 
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9.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Piney Creek on Piney Creek or County Road 17, ca 24 air mi ESE of Wright; ca 27 air mi NNE of Bill.  Elev. 4660-4740 ft.
T42N R68W S30 N1/2.  43.5868 N, 105.0699 W; uncertainty 1 mi..  
Creek bed. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 2327.  7/27/2002. 		RM 
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10.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: along Coal Creek and one of its tributaries ca 2 air mi WSW of Coal Creek's confluence with Little Powder River, ca 24 air mi ENE of Gillette; ca 31 air mi NW of Moorcroft.  Elev. 3880-3960 ft.
T54N R71W S36 South1/2.  44.6145 N, 105.3393 W; uncertainty 1 mi..  
Creek floodplain, stony soil. Phenology: flowering. 

Peter J. Ebertowski, 3290.  8/20/2002. 		RM 
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11.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: ponderosa pine covered ridge and ravines N of and draining to Little Thunder Creek, ca 20.5 air mi E of Wright; ca 46 air mi SSE of Gillette.  Elev. 4800-5100 ft.
T43N R69W S13 W1/2.  43.7001 N, 105.0899 W; uncertainty 1 mi..  
Scoria ridge, bluebunch wheatgrass and plains muhly. Phenology: flowering. 

Peter J. Ebertowski, 3517.  8/26/2002. 		RM 
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12.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills N of Thunder Basin Work Center off Wyo Hwy 450, ca 26 air mi ESE of Wright; ca 45 air mi SSE of Gillette.  Elev. 4590-4920 ft.
T43N R69W S21.  43.6859 N, 105.1497 W; uncertainty 1 mi..  
Scoria hills with ponderosa pine and Rocky Mountain juniper. Phenology: flowering. 

Peter J. Ebertowski, 970.  7/1/2002. 		RM 
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13.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills W of Little Powder River S of Coal Creek on dirt road off of Wyo Hwy 59, ca 23 air mi NNE of Gillette; ca 31 air mi NW of Moorcroft.  Elev. 3950-4440 ft.
T53N R71W S2.  44.5998 N, 105.3595 W.  
Scoria hills with ponderosa pine and Rocky Mountain juniper. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5204.  6/20/2003. 		RM 
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14.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: southern edge of Buck Creek Hills, on Meridian or County Road 17, ca 24 air mi N of Lusk; ca 13 air mi ENE of Lance Creek.  Elev. 4380-4500 ft.
T36N R63W S10 W1/2.  43.1103 N, 104.4157 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Grassland with widely spaced yucca. Phenology: flowering. 

Peter J. Ebertowski, 5305.  6/22/2003. 		RM 
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15.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: hills N of confluence of North Fork Duck Creek and Duck Creek, off dirt road to Dickinson Ranch, ca 39 air mi NNE of Gillette; ca 39 air mi NNW of Moorcroft.  Elev. 3800-3940 ft.
T56N R69W S30 W1/2.  44.8086 N, 105.1883 W.  
Grassy ravine in silver sagebrush grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5904.  7/3/2003. 		RM 
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16.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: Sage Creek on Old Highway 85 or County Road 9, ca 4.5 air mi E of Mule Creek Junction; ca 32 air mi S of Newcastle.  Elev. 3880-3960 ft.
T39N R61W S13 NE1/4.  43.3608 N, 104.1309 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Grassy ravine with silver sagebrush. Phenology: fruiting. 

Peter J. Ebertowski, 6387.  7/9/2003. 		RM 
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17.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: TA Buttes on two-track road off Union Chapel Road, ca 6 air mi SE of Gillette; ca 4.5 air mi S of Wyodak.  Elev. 4560-4800 ft.
T49N R71W S16.  44.2234 N, 105.3987 W.  
Mosaic of sagebrush grassland and grassland. Phenology: flowering. 

Peter J. Ebertowski, 6518.  7/11/2003. 		RM 
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18.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Belle Fourche River, on Clarkelen Road, ca 13 air mi SW of Wright; ca 45 air mi SSW of Gillette.  Elev. 5090-5150 ft.
T43N R74W S36 SE1/4.  43.6576 N, 105.6883 W.  
Ravine in sagebrush grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 6742.  7/14/2003. 		RM 
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19.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Rochelle Hills N of Wildcat Creek, on two-track road off Rochelle Hills or Forest Road 933, ca 19 air mi SE of Wright; ca 56 air mi SSE of Gillette.  Elev. 4900-5040 ft.
T48N R69W S11 SE1/4.  44.1464 N, 105.1134 W.  
Ravine slope with silver sagebrush. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 6814.  7/16/2003. 		RM 
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20.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: grassland ridge separating South Cottonwood and North Oat creeks, on Boner or County Road 18, ca 50 air mi S of Newcastle; ca 29 air mi NE of Lusk.  Elev. 4300-4440 ft.
T36N R61W S10 SE1/4.  43.1087 N, 104.172 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Grassland with clayey soils. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 6987.  7/18/2003. 		RM 
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21.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Big RW Creek, ca 1 mi N of its confluence with Black Thunder Creek, on Keeline or Forest Road 930, ca 18 air mi E of Wright; ca 40 air mi SSE of Gillette.  Elev. 4510-4620 ft.
T44N R69W S22 E1/2.  43.7709 N, 105.1298 W.  
Sagebrush grassland, Bouteloua gracilis abundant. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 7042.  7/23/2003. 		RM 
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22.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: Miller Creek, on County Road 68, ca 8 air mi N of Moorcroft; ca 28 air mi E of Gillette.  Elev. 4160 ft.
T51N R67W S30 NW1/4.  44.3743 N, 104.9532 W.  
Sagebrush grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 8402.  8/19/2003. 		RM 
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23.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: reservoirs between Weston and Little Powder River, on Forest Road 908, ca 27 air mi NNE of Gillette; ca 32 air mi NW of Moorcroft.  Elev. 3700-3760 ft.
T54N R70W S19 W1/2.  44.6439 N, 105.319 W.  
Area of silver sagebrush and crested wheatgrass around reservoir. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 8624.  8/25/2003. 		RM 
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24.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Absaroka Mountains: North Fork Shoshone River Drainage: along Sweetwater Creek, ca 4-5 mi N of U.S. Hwy 14, 16, & 20.  Elev. 6700 ft.
T53N R106W S31; also S32.  44.5295 N, 109.6782 W.  
Scree slopes on east side of creek. Phenology: flowering. 

Erwin F. Evert, 13124.  7/9/1987. 		RM 731873	Barcode: RM0045015
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25.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carbon County: Beartooth Mountains: along east side of Meeteetse Trail Road, ca 5 mi S of Red Lodge.  Elev. 5900 ft.
T8S R20E S23 SE1/4.  45.1168 N, 109.2238 W.  
Pinus flexilis woodland with some Douglas fir on limestone derived substrates with Poa cusickii, Eritrichium howardii and Hymenoxys acaulis. 

Erwin F. Evert, 19587.  7/14/1990. 		RM 619550
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26.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Coconino National Forest: Skunk Canyon where Forest Road 720 crosses, ca 3.5 air mi S of Flagstaff.  Elev. 6900-6950 ft.
T20N R7E S3 E1/4.  35.1452 N, 111.6394 W; GPS Reading.  
Open ponderosa pine forest on limestone slope. Phenology: flowering & fruiting. 

B. E. Nelson, 66518.  9/13/2005. 		RM 
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27.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Sweet Grass County: Beartooth Mountains: Gallatin National Forest: Boulder Arch Scenic Area along the Boulder River, ca 21 mi SW of Big Timber.  Elev. 5200 ft.
T3S R12E S26.  45.5452 N, 110.2104 W.  
Openings in Dougals fir forest on limestone derived substrates with Elymus spicatus and Stipa comata. 

Erwin F. Evert, 21874.  7/18/1991. 		 
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28.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Coconino National Forest: ridge between Fay and Skunk canyons off Forest Road 720, down to Skunk Canyon, ca 3.5 air mi S of Flagstaff.  Elev. 6860-6960 ft.
T20N R7E S2 NE1/4; also T21N R7E S35 SW1/4.  35.1503 N, 111.6223 W; GPS Reading.  
Open ponderosa pine forest. Phenology: flowering. 

B. E. Nelson, 66602.  9/13/2005. 		RM 
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29.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Stillwater County: Ca 1/4-1/2 mi S of Cliff Swallow fishing access site, ca 10 mi W of Absarokee.  Elev. 4700 ft.
T4S R17E S4.  45.5161 N, 109.6345 W.  
Sagebrush-grassland with Festuca idahoensis, Koeleria macrantha, Zigadenus venenosus, and Artemisia tridentata var. vaseyana. 

Erwin F. Evert, 22843.  6/12/1992. 		 
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30.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Southeastern Absarokas: ridge 1/4-1/2 mi N and W of Little Grass Creek, in foothills ca 20 mi S of Meeteetse.  Elev. 6800-7000 ft.
T45N R100W S23 NW1/4; also NE1/4 S22.  43.8507 N, 108.8225 W.  
Rocky sagebrush-grassland and limber pine woodland with Ipomopsis spicata ssp. spicata, Hymenoxys acaulis, Penstemon laricifolius, and Festuca idahoensis. 

Erwin F. Evert, 25599.  6/29/1993. 		RM 611502	Barcode: RM0045018
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31.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carbon County: Shupak Pond, ca 6 mi NNW of Belfry.  Elev. 3900 ft.
T7S R22E S16 SW1/4.  45.2262 N, 109.0364 W.  
Disturbed sagebrush-grassland S of pond with Erigeron pumilus, Alyssum desertorum, Lappula redowskii, and Bromus tectorum. Phenology: flowering. 

Erwin F. Evert, 26616.  6/5/1994. 		RM 780399	Barcode: RM0103714
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32.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Madison County: Ridge immediately N of Ennis Lake and W of Bear Trap canyon, 4-5 mi E of McAllister.  Elev. 5000-5200 ft.
T4S R1W S25; also T4S R1E S30.  45.4578 N, 111.6706 W.  
Dry, rocky, south facing slope with Cercocarpus ledifolius var. ledifolius, Gutierrezia sarothrae, Agropyron spicatum, and Phacelia hastata. Phenology: fruiting. 

Erwin F. Evert, 27212.  6/18/1994. 		RM 781517
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33.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Park County: Paradise Valley: Gallatin National Forest: former Yankee Jim Campground, ca 13 mi NW of Gardiner.  Elev. 5200 ft.
T7S R7E S33.  45.1823 N, 111.8679 W.  
Disturbed, rocky, open Douglas fir forest with Agropyron spicatum, Festuca idahoensis, Allium textile, and Lomatium triternatum. Phenology: flowering. 

Erwin F. Evert, 29039.  6/15/1995. 		RM 782550	Barcode: rm0103869
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34.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Stillwater County: Ridge ca 1/4 mi E of Montana Highway 78, 1 mi NE of Absarokee.  Elev. 4160 ft.
T3S R19E S31.  45.5306 N, 109.4288 W; uncertainty 1 mi..  
Disturbed sagebrush grassland with Allium textile, Agropyron spicatum, and Artemisia frigida. 

Erwin F. Evert, 30880.  6/5/1996. 		 
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35.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Kaibab National Forest: Coconino Plateau: along small canyon leading to Coconino Wash, ca 4 air mi S of South Rim Grand Canyon, ca 8 air mi ESE of Tusayan; ca 55 air mi NNW of Flagstaff.  Elev. 7160-7280 ft.
T30N R4E S32 SW1/4.  35.9344 N, 111.9928 W; GPS Reading.  
Open ponderosa pine forest on limestone. Phenology: flowering. 

B. E. Nelson, 67501.  9/24/2005. 		RM 
     with James F. Fowler
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36.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Kaibab National Forest: Coconino Plateau: Coconino Rim off Coconino Rim or Forest Road 310, ca 5.5 air mi S of South Rim Grand Canyon, ca 12.5 air mi ESE of Tusayan; ca 53 air mi NNW of Flagstaff.  Elev. 7300-7440 ft.
T29N R4E S1 NW1/4.  35.9284 N, 111.9128 W to 35.9297 N, 111.9097 W; GPS Reading.  
Rim of plateau. Phenology: flowering & fruiting. 

B. E. Nelson, 67506.  9/25/2005. 		RM 
     with James F. Fowler
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37.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Owl Creek Mountains: lower end of the Wind River Canyon, along U.S. Hwy 20/Wyo Hwy 789, 4 mi S of Thermopolis.  Elev. 4430 ft.
T42N R95W S24.  43.5908 N, 108.2058 W; uncertainty 1 mi..  
Weedy, rocky riparian area along the river with Bromus inermis, Asclepias speciosa, and Cirsium arvense. Phenology: fruiting. 

Erwin F. Evert, 33211.  6/22/1997. 		RM 818615	Barcode: RM0020478
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38.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: along Red Spring Draw Road, ca 5 mi S of Wyo Hwy 172, 10 mi ENE of Thermopolis.  Elev. 5100 ft.
T43N R93W S28.  43.6628 N, 108.0265 W; uncertainty 1 mi..  
Sagebrush-grassland with Elymus spicatus, Cryptantha celosoides, and Bromus tectorum. Phenology: flowering. 

Erwin F. Evert, 35053.  6/12/1998. 		RM 820544	Barcode: RM0020396
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39.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Kaibab National Forest: Barney Flat at the intersection of Forest Road 108 and County Road 73, ca 6 air mi S of Williams.  Elev. 7010 ft.
T21N R2E S26 SW1/4.  35.1643 N, 112.1576 W.  
Forb meadow and adjacent roadside. Phenology: flowering. 

B. E. Nelson, 69863.  8/24/2006. 		RM 
     with James F. Fowler
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40.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Tusayan National Forest: in field at D. Smith.  Elev. 6760 ft.
In field. Phenology: flowering & fruiting. 

Arthur D. Read, 74.  8/21/1912. 		USFS 476154
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41.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Utah, San Juan County: Natural Bridges National Monument: Slickrock Hanging Garden, White Canyon.  Elev. 1768 m.
x585921:y4162069.  zone 12, 585921E, 4162069N; Specimen Label.  
Hanging garden. 

James F. Fowler, 1098.  5/28/1993. 		 
     with C. L. May
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42.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Utah, San Juan County: Natural Bridges National Monument: Petro II Hanging Garden, White Canyon.  Elev. 1823 m.
x586144:y4161665.  zone 12, 586144E, 4161665N; Specimen Label.  
Hanging garden. 

James F. Fowler, 1154.  5/29/1993. 		 
     with C. L. May
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43.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Utah, San Juan County: Natural Bridges National Monument: Kachina Hanging Garden, White Canyon.  Elev. 1762 m.
x585914:y4161920.  zone 12, 585914E, 4161920N; Specimen Label.  
Hanging garden. 

James F. Fowler, 1184.  5/29/1993. 		 
     with C. L. May
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44.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Utah, San Juan County: Natural Bridges National Monument: Tuwa Hanging Garden, Tuwa Canyon.  Elev. 1871 m.
x588646:y4160100.  zone 12, 588646E, 4160100N; Specimen Label.  
Hanging garden. 

James F. Fowler, 1215.  5/30/1993. 		 
     with C. L. May
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45.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Utah, San Juan County: Natural Bridges National Monument: Fir Hanging Garden, White Canyon.  Elev. 1828 m.
x586734:y4162754.  zone 12, 586734E, 4162754N; Specimen Label.  
Hanging garden. 

James F. Fowler, 1260.  5/31/1993. 		 
     with C. L. May
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46.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Great Divide Basin Area: Popo Agie River Drainage: Meadow Gulch and adjacent boulder slopes, ca 10 air mi W of Sweetwater Station; ca 4 air mi NE of Schoettlin Mountain.  Elev. 6500-6800 ft.
T30N R96W S18 South1/2; also NW1/4 S19.  42.5756 N, 108.3522 W.  
East-facing boulder/talus slope; scattered juniper, pine, and sagebrush. Phenology: flowering. 

Laura Welp, 2035.  7/11/1994. 		RM 673718	Barcode: RM0282856
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47.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Washakie County: Tensleep Preserve, The Nature Conservancy: southwest flank, foothills of the Big Horn Mountains, ca 10 mi E of Ten Sleep, Canyon Creek watershed, bottom of Canyon Creek Canyon.  Old Maid Gulch quad.  Elev. 5370 ft.
44.0127 N, 107.2777 W; GPS Reading.  
Found growing with Populus angustifolia, Acer negundo, Rosa woodsii, Cornus sericea, Elymus trachycaulus var. andinus, Lappula redowskii, Galium triflorum, Cystopteris fragilis, Corallorhiza striata, C. maculata var. occidentalis, Osmorhiza berteroi, Cirsium undulatum, Woodsia oregana, and Galium boreale. Inflorescence light purple. also Paul B. Marcum, Loy Richard Phillippe Phenology: flowering. 

Daniel T. Busemeyer, 1941.  6/15/2004. 		RM 785752	Barcode: RM0283108
     with Leland Crane, David M. Ketzner, Mary Ann Feist, Richard L. Larimore,
_________________________________________________________________________

48.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Upper North Platte and Laramie River Drainages: E of Agate Flat or BLM Road 2404, ca 15.7 air mi NW of Three Forks Junction; ca 9 air mi NE of Jeffrey City.  Elev. 6300-6350 ft.
T29N R91W S12.  42.4966 N, 107.6714 W.  
Gravelly area at base of granite slopes with scattered limber pine and juniper. Phenology: flowering & fruiting. 

Amy J. Roderick, 1547.  7/3/1997. 		RM 
     with Pamela Foster
_________________________________________________________________________

49.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 18.5 air mi WSW of Gunnison.  Elev. 8000-8850 ft.
T49N R4W S13 NE1/4.  38.5069 N, 107.2479 W.  
South-facing sagebrush slope. Phenology: flowering & fruiting. 

Kevin J. Taylor, 1286.  6/13/1997. 		 
_________________________________________________________________________

50.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 3.5 air mi SSE of Paonia Reservoir.  Elev. 7350-7500 ft.
T13S R89W S27 NW1/4.  38.8956 N, 107.3218 W.  
West-facing slope; Colorado blue spruce, Douglas fir, juniper, and oak. Phenology: flowering & fruiting. 

Kevin J. Taylor, 1846.  6/21/1997. 		 
_________________________________________________________________________

51.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Delta County: Northern Gunnison Basin: ca 3 air mi NNE of Crawford.  Elev. 6000-6500 ft.
T15S R91W S17.  38.7489 N, 107.5825 W.  
Juniper and aspen shrubland (Atriplex). Phenology: flowering & fruiting. 

Kevin J. Taylor, 530.  5/26/1997. 		 
_________________________________________________________________________

52.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 3/4 air mi NW of southern edge of Paonia Reservoir.  Elev. 7400-7550 ft.
T13S R89W S5 E1/2.  38.9543 N, 107.359 W.  
Southeast-facing slope; Quercus, juniper, and Douglas-fir. Phenology: flowering & fruiting. 

Kevin J. Taylor, 5994.  6/7/1998. 		 773179
_________________________________________________________________________

53.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Delta County: Northern Gunnison Basin: ca 5 1/4 air mi S of Paonia.  Elev. 6800-7100 ft.
T14S R91W S32 SW1/4.  38.7929 N, 107.5825 W.  
Juniper, sagebrush, oak and along creek. Phenology: flowering & fruiting. 

Kevin J. Taylor, 8391.  7/14/1998. 		 773178
_________________________________________________________________________

54.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 2 1/4 air mi NNE of Parlin.  Elev. 8500 ft.
T49N R2E S1 SW1/4.  38.536 N, 106.7023 W.  
Around spring; Eleocharis and Salix. Phenology: flowering & fruiting. 

Kevin J. Taylor, 9540.  7/25/1998. 		 776562
_________________________________________________________________________

55.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 7 air mi ESE of Fairburn and 0.5 mi N of County Road 18.  Elev. 3050-3150 ft.
T4S R9E S32; W1/2 S13.  43 39.61' N, 103 4.53' W; GPS Reading.  
Abandoned gravel pit. Phenology: flowering. 

Grace M. Kostel, 1330.  6/4/2004. 		RM 
_________________________________________________________________________

56.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 22-22.5 air mi NNW of Crawford and 2 mi E of NE Hwy 71 and NE Hwy 2.  Elev. 3650-3700 ft.
T35N R53W S21 N1/2.  42 59.75' N, 103 34.55' W; GPS Reading.  
In alkaline draw and adjacent slopes of clay soils. Phenology: flowering. 

Grace M. Kostel, 1575.  6/7/2004. 		RM 
_________________________________________________________________________

57.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 11 air mi NW of Crawford and 0.5 mi W of Hudson-Meng Bonebed Trail, near Whitehead Creek.  Elev. 3800-3900 ft.
T33N R53W S8 NW1/4.  42 51.05' N, 103 35.28' W; GPS Reading.  
In drainage and slopes leading to creek in heavy white clay soil. Phenology: flowering. 

Grace M. Kostel, 1807.  6/8/2004. 		RM 
_________________________________________________________________________

58.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 8-8.5 air mi NW of Edgemont and 3 mi W of County Road 9.  Elev. 3650-3800 ft.
T8S R1E S14 W1/2.  43 21.09' N, 103 58.48' W to 43 21.32' N, 103 58.48' W; GPS Reading.  
Draw bottom. Phenology: flowering. 

Grace M. Kostel, 1933.  6/11/2004. 		RM 
_________________________________________________________________________

59.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 15 air mi SSW of Edgemont off Forest Road 7012.  Elev. 1200-1250 ft.
T11S R2E S17 SW1/4.  43 6.1' N, 103 54.5' W; GPS Reading.  
On grassy upland and plant diverse areas of moisture collection, ridge "edge" slumps. Phenology: flowering. 

Grace M. Kostel, 2004.  6/11/2004. 		RM 
_________________________________________________________________________

60.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 16.5-17 air mi SW of Edgemontand 0.5 mi N of Forest Road 7078.  Elev. 3200-3300 ft.
T11S R1E S26 N1/2.  43 7.38' N, 104 2.55' W; GPS Reading.  
On rock outcrop of grass upland. Phenology: flowering. 

Grace M. Kostel, 2081.  6/12/2004. 		RM 
_________________________________________________________________________

61.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 30-31 air mi NW of Crawford and 0.5 mi N of Indian Creek Road.  Elev. 3850-3900 ft.
T34N R56W S34 SW1/4.  42 57.44' N, 103 53.98' W; GPS Reading.  
Grass upland. Phenology: flowering. 

Grace M. Kostel, 2150.  6/14/2004. 		RM 
_________________________________________________________________________

62.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 35-35.5 air mi NW of Crawford and ca 0.5 mi S of Forest Road 931.  Elev. 3600-3700 ft.
T34N R57W S25 SW1/4.  42 57.15' N, 103 59.44' W; GPS Reading.  
Grass upland. Phenology: flowering. 

Grace M. Kostel, 2195.  6/14/2004. 		RM 
_________________________________________________________________________

63.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 27.5-28 air mi NW of Crawford.  Elev. 3850-3950 ft.
T34N R56W S25 NW1/4.  42 53.71' N, 103 52.59' W; GPS Reading.  
On ridge of rockand sand. Phenology: flowering. 

Grace M. Kostel, 2246.  6/14/2004. 		RM 
_________________________________________________________________________

64.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 20.5-21 air mi NNW of Crawford.  Elev. 3800 ft.
T34N R54W S12 NE1/4.  42 56.34' N, 103 37.67' W; GPS Reading.  
Ridge of sand with plant diverse areas of moisture holding ridge "edge" slumps. Phenology: flowering. 

Grace M. Kostel, 2263.  6/15/2004. 		RM 
_________________________________________________________________________

65.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 19 air mi SSE of Edgemont and off Forest Road 7076.  Elev. 1126 ft.
T12S R3E S25.  43 1.94' N, 103 42.5' W; GPS Reading.  
On ridge crest. Phenology: flowering. 

Grace M. Kostel, 2326.  6/15/2004. 		RM 
_________________________________________________________________________

66.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 17 air mi SE of Hermosa and 12 air mi ESE of Fairburn and 0.5 mi E of County Road 19 near French Creek.  Elev. 2800-3000 ft.
T4S R10E S31 SW1/4.  43 38.78' N, 102 58.97' W; GPS Reading.  
On side slopes and in drainages of creek with sand and gravel soil. Phenology: flowering. 

Grace M. Kostel, 2357.  6/21/2004. 		RM 
_________________________________________________________________________

67.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 20.5-21 air mi SSW of Wall and 0.5 mi E of Forest Road 7133.  Elev. 2500-2600 ft.
T4S R15E S15 SE1/4.  43 41.58' N, 102 17.95' W; GPS Reading.  
On east and south faces of revegetated and stabilized sand bluffs. Phenology: flowering. 

Grace M. Kostel, 2474.  6/21/2004. 		RM 
_________________________________________________________________________

68.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 17-17.5 air mi SE of Hermosa and 1.5-2 mi NNW of Red Shirt and 1-1.5 mi W of SD Hwy 40.  Elev. 2800-2950 ft.
T4S R10E S22; NE1/4.  43 41.63' N, 102 54.4' W; GPS Reading.  
In draws and on ridge tops. Phenology: flowering. 

Grace M. Kostel, 2724.  6/25/2004. 		RM 
_________________________________________________________________________

69.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.  Elev. 2800-3100 ft.
T4S R9E S24 N1/2; also SE1/4 S13.  43 42.14' N, 103 0.3' W to 43 41.27' N, 102 58.1' W to 43 41.52' N, 102 58.76' W; GPS Reading.  
Rock slopes and buttes of Juniper leading into clay based drainages. Phenology: flowering. 

Grace M. Kostel, 3212.  7/2/2004. 		RM 
_________________________________________________________________________

70.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 14.5-15 air mi SE of Hermosa and 2.4 mi N of County Road 18.  Elev. 2800-3100 ft.
T4S R9E S24 N1/2; also SE1/4 S13.  43 42.14' N, 103 0.3' W to 43 41.27' N, 102 58.1' W to 43 41.52' N, 102 58.76' W; GPS Reading.  
Butte rock slopes and top. Phenology: fruiting. 

Grace M. Kostel, 3299.  7/2/2004. 		RM 
_________________________________________________________________________

71.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi WNW of Edgemont; Moss Agate Creek.  Elev. 3700-3750 ft.
T8S R1E S17 South1/2.  43 21.05' N, 104 0.83' W; GPS Reading.  
In side drainage of creek.  Side slopes of rock and gravel. Phenology: flowering. 

Grace M. Kostel, 3314.  7/2/2004. 		RM 
_________________________________________________________________________

72.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: ca 18.5-19 air mi NNW of Crawford and just S of Forest Road 909.  Elev. 3850-3950 ft.
T35N R52W S34 SW1/4.  42 56.73' N, 103 27.05' W; GPS Reading.  
In Juniper horizontalis draw of rock, gravel and sand. Phenology: flowering. 

Grace M. Kostel, 3376.  7/6/2004. 		RM 
_________________________________________________________________________

73.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Dawes County: Oglala National Grassland and Vicinity: ca 15 mi N of Crawford and on Forest Road 919.  Elev. 3600-3700 ft.
T34N R52W S23.  42 54.06' N, 103 25.54' W; GPS Reading.  
On ridgetop down to resevoir. Phenology: flowering. 

Grace M. Kostel, 3405.  7/6/2004. 		RM 
_________________________________________________________________________

74.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 10 air mi NW of Crawford and 3/4 mi N of Sand Creek Road.  Elev. 3650-3750 ft.
T33N R53W S23.  42 49.1' N, 103 32.23' W; GPS Reading.  
On buttes of clay soil. Phenology: flowering. 

Grace M. Kostel, 3485.  7/6/2004. 		RM 
_________________________________________________________________________

75.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 11.5 air mi ESE of Smithwick and 1.5 mi S of County Road 1.  Elev. 950 ft.
T9S R9E S13 South1/2.  43.2622 N, 103.0073 W; GPS Reading.  
On buttes and badlands; soils are typical badland clay. Phenology: flowering. 

Grace M. Kostel, 3496.  7/11/2004. 		RM 
_________________________________________________________________________

76.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 13.5-14 air mi NE of Smithwick and 0.5 mi E of Black Canyon.  Elev. 3200-3250 ft.
T7S R9E S23 NE1/4.  43 25.64' N, 103 2.17' W; GPS Reading.  
On Pascopyrum smithii - Nassellus viridula upland.  Wildfire site in 2003. Phenology: flowering. 

Grace M. Kostel, 3548.  7/11/2004. 		RM 
_________________________________________________________________________

77.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 14 mi NNE of Smithwick and immediately S of the Fall River and Custer County lines.  Elev. 3000-3050 ft.
T7S R9E S4 NW1/4.  43 28.26' N, 103 4.15' W; GPS Reading.  
On ridgetop of sand and silt soils. Phenology: flowering. 

Grace M. Kostel, 3554.  7/11/2004. 		RM 
_________________________________________________________________________

78.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 14.5 air mi NW of Crawford on Hudson-Meng Bison Bonebed Trail, 0.5 mi SW of Toadstool Geologic Park.  Elev. 3750-3900 ft.
T33N R53W S8 NE1/4.  42 51.18' N, 103 35.53' W; GPS Reading.  
Soils are heavy white clay below with clay sand mix at top of  "toadstool" geologic formations. Phenology: flowering. 

Grace M. Kostel, 3706.  7/15/2004. 		RM 
_________________________________________________________________________

79.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 18.5-19 air mi SSW of Edgemont.  Elev. 3900 ft.
T12S R2E S5 NE1/4.  43 1.96' N, 103 54.59' W; GPS Reading.  
Shores of reservoir. Phenology: flowering. 

Grace M. Kostel, 4115.  7/19/2004. 		RM 
_________________________________________________________________________

80.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 8.5 air mi SE of Hermosa in Red Shirt Creek.  Elev. 2850-3100 ft.
T4S R10E S16 E1/2.  43 42.75' N, 102 55.11' W to 43 41.19' N, 102 55.03' W; GPS Reading.  
In drainage of creek and steep slopes of drainage; soils are rock substrate with clayey silt. Phenology: flowering. 

Grace M. Kostel, 4219.  7/29/2004. 		RM 
_________________________________________________________________________

81.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: on Forest Road 914, ca. 0.5 mi E of Edgemont Road in bluffs N of roadway.  Elev. 3900-4000 ft.
T34N R56W S13 South1/2.  42.9153 N, 103.8397 W; GPS Reading.  
On buttes in soils of rock and gravel. Phenology: flowering. 

Grace M. Kostel, 991.  5/30/2004. 		RM 
_________________________________________________________________________

82.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 6 air mi ESE of Cottonwood.  Elev. 2330 ft.
T1S R19E S13 E1/2.  43 57.59' N, 101 46.82' W; GPS Reading.  
On gently rolling prairie uplands in soil depressions that have "slumped" down slope, soils are silty loam. Phenology: flowering & fruiting. 

Grace M. Kostel, 6446.  6/16/2005. 		RM 
_________________________________________________________________________

83.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 6.5 air mi SE of Cottonwood.  Elev. 2390 ft.
T1S R19E S25 SE1/4.  43 56.017' N, 101 46.982' W; GPS Reading.  
In rolling prairie uplands in soil depressions that have "slumped" down slope. Phenology: flowering & fruiting. 

Grace M. Kostel, 6479.  6/16/2005. 		RM 
_________________________________________________________________________

84.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 7.5 air mi SE of Farmingdale.  Elev. 3100 ft.
T2S R11E S16 SE1/4.  43 52.279' N, 102 48.244' W; GPS Reading.  
Rock ledges of bluffs, north aspect, overlooking deep drainage; soils are rock, gravel, and silt eroding into clay. Phenology: flowering & fruiting. 

Grace M. Kostel, 6803.  6/18/2005. 		RM 
_________________________________________________________________________

85.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 8.5-9 air mi SW of Kadoka.  Elev. 2372 ft.
T3S R20E S13 NW1/4; also S12.  43 47.541' N, 101 40.558' W; GPS Reading.  
On gently rolling prairie with silt loam soils having a deep clay pan base. Phenology: flowering & fruiting. 

Grace M. Kostel, 7108.  6/19/2005. 		RM 
_________________________________________________________________________

86.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Wall.  Elev. 2700 ft.
T2S R16E S34 SW1/4.  43 54.559' N, 102 11.78' W; GPS Reading.  
In typic badlands habitat; soils are deep heavy clay. Phenology: flowering & fruiting. 

Grace M. Kostel, 7409.  6/23/2005. 		RM 
_________________________________________________________________________

87.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 12 air mi SSE of Wall.  Elev. 2575 ft.
T3S R16E S4 E1/2.  43 48.75' N, 102 12.283' W; GPS Reading.  
In typic badlands habitat; soils are deep heavy clay. Phenology: flowering & fruiting. 

Grace M. Kostel, 7438.  6/23/2005. 		RM 
_________________________________________________________________________

88.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 5 air mi SE of Oelrichs and ca 3 air mi SE of Limestone Butte near Forest Road 7026.  Elev. 3368 ft.
T10S R8E S34 NE1/4.  43 8.555' N, 103 8.561' W; GPS Reading.  
On rolling prairie uplands dissected by deep drainages; soils are loam to loamy clay. Phenology: flowering & fruiting. 

Grace M. Kostel, 7480.  6/24/2005. 		RM 
_________________________________________________________________________

89.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 5 air mi SE of Oelrichs and ca 3 air mi SE of Limestone Butte near Forest Road 7026.  Elev. 3368 ft.
T10S R8E S34 NE1/4.  43 8.555' N, 103 8.561' W; GPS Reading.  
On rolling prairie uplands dissected by deep drainages; soils are loam to loamy clay. Phenology: flowering & fruiting. 

Grace M. Kostel, 7481.  6/24/2005. 		RM 
_________________________________________________________________________

90.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 12 air mi ESE of Oelrichs and ca 1.5 air mi due E of County Road 3.  Elev. 3285 ft.
T11S R9E S11 NW1/4.  43 6.824' N, 103 1.573' W; GPS Reading.  
In rolling prairie uplands of silt and silt loam. Phenology: fruiting. 

Grace M. Kostel, 7567.  6/24/2005. 		RM 
_________________________________________________________________________

91.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 13 air mi SE of Oelrichs immediately adjacent to Forest Road 7023.  Elev. 3505 ft.
T12S R9E S5 South1/2.  43 1.972' N, 103 4.925' W; GPS Reading.  
Rolling prairie uplands and hilltops; soils are gravel and silt loam. Phenology: flowering & fruiting. 

Grace M. Kostel, 7619.  6/24/2005. 		RM 
_________________________________________________________________________

92.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 11 air mi SSW of Oelrichs and ca 2 air mi due W of SD Hwy 385.  Elev. 3600 ft.
T12S R7E S11 W1/2.  43 4.242' N, 103 15.693' W; GPS Reading.  
Rolling prairie uplands; silt loam soils. Phenology: flowering & fruiting. 

Grace M. Kostel, 7657.  6/24/2005. 		RM 
_________________________________________________________________________

93.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 5.5 air mi SE of Scenic in Big Hollow Creek.  Elev. 2750 ft.
T4S R13E S12 South1/2.  43 42.388' N, 102 30.422' W; GPS Reading.  
Soils are unstable, gravel and clay streambed. Phenology: flowering & fruiting. 

Grace M. Kostel, 7966.  6/29/2005. 		RM 
_________________________________________________________________________

94.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 3 1/2-3 3/4 air mi SSW of Scenic.  Elev. 2861 ft.
T3S R12E S31 SE1/4.  43 44.157' N, 102 34.005' W; GPS Reading.  
In deep-cut stream channel of badlands; soils are clay overlain by gravel. Phenology: flowering & fruiting. 

Grace M. Kostel, 8003.  6/29/2005. 		RM 
_________________________________________________________________________

95.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Scenic.  Elev. 2950-3000 ft.
T4S R14E S7.  43 42.788' N, 102 29.147' W; GPS Reading.  
On a ridge in a Yucca glauca plant community, soils are silt loam and sand. Phenology: flowering & fruiting. 

Grace M. Kostel, 8238.  7/7/2005. 		RM 
_________________________________________________________________________

96.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 1 air mi SSE of Scenic.  Elev. 2800-2900 ft.
T3S R13E S22 SW1/4.  43 46.049' N, 102 33.033' W; GPS Reading.  
In badlands floodplain, soils are deep heavy white clay. Phenology: flowering & fruiting. 

Grace M. Kostel, 8268.  7/8/2005. 		RM 
_________________________________________________________________________

97.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Jackson County: Buffalo Gap National Grassland and Vicinity: ca 4-4.5 air mi SE of Cactus Flats.  Elev. 2550-2575 ft.
T3S R19E S8; also S9, S10 and S15.  43 48.473' N, 101 53.31' W; GPS Reading.  
Badlands "wall" ridge edge, near a previously altered prairie planted into Agropyron cristatum, soils are silty loam eroding into clay. Phenology: flowering & fruiting. 

Grace M. Kostel, 8408.  7/10/2005. 		RM 
_________________________________________________________________________

98.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap National Grassland and Vicinity: ca 12 air mi ESE of Fairburn and 1/4 mi due S of County Road 18 at French Creek.  Elev. 3100 ft.
T5S R10E S6 W1/2.  43 38.453' N, 103 6.192' W; GPS Reading.  
On north and east facing slopes of creek, soils are rock and gravel. Phenology: flowering & fruiting. 

Grace M. Kostel, 8561.  7/12/2005. 		RM 
     with Don Hazlett
_________________________________________________________________________

99.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 16 air mi NE of Hermosa and 3/4 mi SE of Thompson Butte.  Elev. 3068 ft.
T1S R10E S31 SW1/4.  43 54.805' N, 102 58.268' W; GPS Reading.  
In rolling prairie uplands with rock strewn vegetated bluffs, soils are silt clay to clay loam. Phenology: fruiting. 

Grace M. Kostel, 8664.  7/15/2005. 		RM 
_________________________________________________________________________

100.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: Buffalo Gap National Grassland and Vicinity: ca 14 air mi NE of Hermosa.  Elev. 2929 ft.
T1S R10E S29 SW1/4.  43 56.018' N, 102 57.23' W; GPS Reading.  
In prairie stream drainage cut, soils are clay loam and alkaline. Phenology: flowering & fruiting. 

Grace M. Kostel, 8716.  7/16/2005. 		RM 
_________________________________________________________________________

101.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Carson National Forest and Vicinity: Sangre de Cristo Range: southern boundary of Valle Vidal Unit via NM Hwy 204, ridgeline above Middle Ponil Creek in Ponil burn area, ca 11 air mi NE of Eagle Nest.  Elev. 7650-8600 ft.
T28N R17E S15 N1/2; also S10, S3 and N1/2 S9.  36.665 N, 105.1068 W; GPS Reading.  
Canyon wall, ridgeline and burned ponderosa pine forest. Phenology: flowering & fruiting. 

Jill E. Larson, 2350.  7/12/2005. 		RM 940863	Barcode: RM0112666
_________________________________________________________________________

102.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Cochise County: Coronado National Forest: road to Rustlers Park: 11.1 mi SE of intersection with Chiricahua National Monument Hwy.  Elev. 7400 ft.
Gravelly rock slides; common. Phenology: flowering & fruiting. 

Gerald B. Ownbey, 1787.  9/1/1953. 		RM 287808
_________________________________________________________________________

103.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: Kiowa Mountain via Forest Road 110A, ca 5 air mi NW of Las Tablas.  Elev. 9130-9800 ft.
T27N R8E S4 SW1/4; also NW1/4 S9 and NE1/4 S8.  36.5919 N, 106.1114 W; GPS Reading.  
Roadside, rocky summit with Forest Service lookout and mixed conifer forest. Phenology: flowering. 

Jill E. Larson, 3262.  7/27/2005. 		RM 940861	Barcode: RM0112665
_________________________________________________________________________

104.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Rio Arriba County: Carson National Forest and Vicinity: rock outcrops around Tres Piedras Ranger District Office at Tres Piedras.  Elev. 8180 ft.
T28N R9E S22 N1/2; also S15.  36.6509 N, 105.9729 W; GPS Reading.  
Sagebrush flats and granite outcrops with ponderosa pine. Phenology: flowering & fruiting. 

Jill E. Larson, 3623.  8/2/2005. 		RM 940860	Barcode: RM0112654
_________________________________________________________________________

105.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: Hondo Canyon along Forest Road 606, SE of NM Hwy 68, up Hondo Canyon Creek 0.6 air mi.  Elev. 7600-8450 ft.
T24N R12E S30 NE1/4.  36.2925 N, 105.7105 W to 36.2878 N, 105.705 W; GPS Reading.  
Southwest exposure, rocky slope with ponderosa pine and Douglas fir. Phenology: flowering. 

Ronald L. Hartman, 80476.  5/17/2005. 		RM 940111	Barcode: RM0111992
     with Jill E. Larson
_________________________________________________________________________

106.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Picuris Pueblo Indian Reservation: Cerro Blanco, ca 0.5 air mi N of Vadito.  Elev. 7600-7950 ft.
T23N R12E S29 E1/2; also S25.  36.1978 N, 105.6798 W; GPS Reading.  
Disturbed area with old roads, roadcuts and dry wash within pinyon/juniper and ponderosa pine forest; near outcrop of sedimentary rock. Phenology: flowering & fruiting. 

Jill E. Larson, 7131.  6/27/2006. 		RM 949487	Barcode: RM0154604
_________________________________________________________________________

107.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Taos County: Carson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: Chuckwagon Canyon on south side of Forest Road 1950, ca 2 air mi S of Comanche Point and ca 8 air mi NE of Red River.  Elev. 9200-9750 ft.
T30N R15E S26; also E1/2 S27 .  36.8062 N, 105.2996 W; GPS Reading.  
Old logging roadbeds and logged spruce forest with Populus tremuloides and open areas of Festuca thurberi. Phenology: flowering & fruiting. 

Jill E. Larson, 8258.  7/14/2006. 		RM 949463	Barcode: RM0154625
_________________________________________________________________________

108.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Carson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: along Middle Ponil Creek S toward Greenwood Canyon from Forest Road 1910, ca 13 air mi E of Red River and ca 2 mi N of Forest Boundary.  Elev. 8500 ft.
T29N R16E S25 E1/2; also E1/2 S36.  36.7247 N, 105.1818 W; GPS Reading.  
Disturbed areas along road in stream drainage surrounded by ponderosa pine forest on west exposure and spruce/Abies concolor on east exposure. Phenology: flowering & fruiting. 

Jill E. Larson, 8427.  7/15/2006. 		RM 949462	Barcode: RM0154624
_________________________________________________________________________

109.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Carson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: Beatty Lakes and vicinity from Forest Road 1914, ca 15 air mi ENE of Red River.  Elev. 8500 ft.
T29N R17E S20.  36.7337 N, 105.1494 W; GPS Reading.  
On edge of Ponil burn area in burned ponderosa pine forest. Phenology: flowering. 

Jill E. Larson, 8457.  7/15/2006. 		RM 949461	Barcode: RM0154623
_________________________________________________________________________

110.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Bighorn Basin: along unmarked road NE of Meeteetse Rim and E of Wyo Hwy 120, ca 10 air mi NNW of Meeteetse and 17.5 air mi SSE of Cody.  Elev. 5680-5748 ft.
T50N R100W S20 NE1/4.  44.2918 N, 108.9041 W; uncertainty 0.5 mi..  
Sagebrush in sandy soil. Phenology: flowering. 

Luanne Lum, 1067.  7/25/2001. 		RM 800740	Barcode: RM0096963
_________________________________________________________________________

111.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Ouray County: Uncompahgre Basin: ca 1/2 - 3/4 air mi E of Uncompahgre River on County Road 33; ca 3.5 air mi SSE of intersection of Main Street in Ridgway and U.S. Hwy 550.  Elev. 7150-7850 ft.
T45N R8W S35 NW1/4.  38.1093 N, 107.7153 W.  
Brushy drainage and sparse pinyon hillsides. Phenology: flowering & fruiting. 

Melanie Arnett, 136.  6/9/1998. 		RM 
_________________________________________________________________________

112.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Gunnison County: Southern Gunnison Basin: Sawatch Range: along Agate Creek near the Agate Creek Campground, ca 3 air mi NE of Sargents; ca 7.2 air mi W of Chipeta Mountain.  Elev. 8800-9200 ft.
T48N R5E S2 South1/4; also N1/2 S11.  38.4304 N, 106.3894 W.  
Mixed conifer/aspen riparian. Phenology: flowering & fruiting. 

Melanie Arnett, 1774.  7/16/1998. 		RM 
_________________________________________________________________________

113.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Wetlands and Adjacent Areas: Mortenson Lake, ca 16 mi SW of Laramie.  Elev. 6900 ft.
T14N R74W S5 SW1/4.  41.2146 N, 105.8308 W; GPS Reading.  
Sandy, dry uplands. Phenology: flowering & fruiting. 

Rachel Newton, 760.  6/22/2005. 		RM 
_________________________________________________________________________

114.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Wetlands and Adjacent Areas: Belle Fourche River, ca 15 air mi NNE of Wright.  Elev. 4541 ft.
T46N R71W S16 SE1/4.  43.95789 N, 105.38707 W; GPS Reading.  
Dry Artemisia scrub hillside. Phenology: flowering & fruiting. 

Rachel Newton, 4321.  6/7/2006. 		RM 
_________________________________________________________________________

115.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Redwater Creek, ca 2 air mi W of Beulah; ca 14 air mi NE of Sundance.  Elev. 3502 ft.
T53N R61W S36 NW1/4.  44.54792 N, 104.11928 W; GPS Reading.  
Along moist shaded creek banks and flood plains. Phenology: flowering & fruiting. 

Rachel Newton, 4862.  6/12/2006. 		RM 
_________________________________________________________________________

116.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Oak Creek, ca 14 air mi N of Beulah; ca 25 air mi NE of Sundance.  Elev. 3517 ft.
T55N R61W S36 W1/2.  44.70884 N, 104.114 W; GPS Reading.  
Dry Quercus-Pinus uplands with fine black sand. Phenology: flowering & fruiting. 

Rachel Newton, 4921.  6/12/2006. 		RM 
_________________________________________________________________________

117.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Wetlands and Adjacent Areas: Little Missouri River, ca 22 air mi N of Devils Tower, ca 43 air mi N of Moorcroft.  Elev. 3648 ft.
T56N R66W S2 NE1/4.  44.87659 N, 104.73824 W; GPS Reading.  
Dry flood plains. Phenology: flowering & fruiting. 

Rachel Newton, 4988.  6/12/2006. 		RM 
_________________________________________________________________________

118.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Wetlands and Adjacent Areas: Tongue River, ca 8 air mi SW of Ranchester.  Elev. 4097 ft.
T56N R87W S11 N1/2 of NE1/4.  44.84976 N, 107.30556 W; GPS Reading.  
Dry, rocky hillside. Phenology: flowering. 

Rachel Newton, 5498.  6/29/2006. 		RM 
_________________________________________________________________________

119.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Goshen County: Haystack Range.  Elev. 5000 ft.
T27N R65W S10.  42.3298 N, 104.6455 W; NAD 83, uncertainty 1 mi., Digital Map.  
Dry clayey soil at edge of ponderosa pine forest. The common and chief thistle of the area. Phenology: flowering & fruiting. 

C. L. Porter, 6746.  7/8/1955. 		RM 247760	Barcode: RM0283029
_________________________________________________________________________

120.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Near Spotted Horse.  Elev. 4000 ft.
T55N R75W S34.  44.7083 N, 105.8387 W; NAD 83, uncertainty 2 mi., Digital Map.  
On dry hillsides, rollings plains. Occasional single-stemmed plants up to 1 ft. high; flowers purple. Phenology: flowering. 

C. L. Porter, 7580.  7/24/1958. 		RM 255943	Barcode: RM0283116
     with Marjorie W. Porter
_________________________________________________________________________

121.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Navajo County: Sitgreaves National Forest: Showlow winter range.  Elev. 6000 ft.
T10N R22E S16.  
Weed community in deep clay (malpais) soil on a north slope; fairly abundant; widely distributed. Phenology: flowering & fruiting. 

R. D. Rowley, 10.  9/16/1921. 		USFS 476155
_________________________________________________________________________

122.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Coconino National Forest: 5 mi E of East Cedar.  Elev. 6400 ft.
T25N R7E S18.  
Open woodland; sparsely scattered; distributed across large areas. Phenology: flowering & fruiting. 

R. E. Bodley, 102.  6/16/1911. 		USFS 476156
_________________________________________________________________________

123.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Battleship Rock Forest Recreation Site, 2.8 air mi S of La Cueva, following Trail 137 on East Fork Jemez River for 0.7 mi.  Elev. 6755-7000 ft.
T19N R3E S5 N1/2.  35 49.741' N, 106 38.733' W; GPS reading.  
Roadside. Phenology: flowering & fruiting. 

Brian Reif, 527.  6/11/2002. 		RM 806412	Barcode: RM0108074
_________________________________________________________________________

124.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 4, ca 1.5 road mi from NM Hwy 126, Dark Canyon trailhead.  Elev. 7328 ft.
T19N R3E S28.  35 51.132' N, 106 37.907' W to 35 51.576' N, 106 37.922' W; GPS reading.  
Roadside. Phenology: flowering & fruiting. 

Ronald L. Hartman, 75738.  7/12/2002. 		RM 806435	Barcode: RM0108085
_________________________________________________________________________

125.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 126, 1.2 road mi from Forest Road 20, Telephone Canyon.  Elev. 8000-8100 ft.
T20N R2E S19.  35 57.3' N, 106 44.5' W; GPS reading.  
Grassy valley. Phenology: flowering & fruiting. 

Ronald L. Hartman, 76215.  7/21/2002. 		RM 806434	Barcode: RM0108084
_________________________________________________________________________

126.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: on NM Hwy 3 along Pecos River W of Villanueva State Park, 10 air mi SSE of I-25/NM Hwy 3 junction.  Elev. 5800 ft.
T12N R15E S17 N1/2.  35.2696 N, 105.3646 W; GPS Reading.  
Roadside corridor with pinyon/juniper woodland on sedimentary slope to north; irrigation ditch and riparian of cottonwood, Russian olive to south. Phenology: flowering & fruiting. 

Brian Reif, 4802.  6/2/2003. 		RM 806411	Barcode: RM0108073
_________________________________________________________________________

127.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Santa Fe National Forest and Vicinity: Jemez Mountains: Forest Road 607 on Virgin Mesa, 4 air mi SSW of La Cueva. N35.824 W106.687 SW 0.5 air mi along road to N35.821 W106.694.  Elev. 8240-8260 ft.
T18N R2E S1 NW1/4.  35.821 N, 106.694 W to 35.824 N, 106.687 W; GPS Reading.  
A thinned fire break of Pinus ponderosa and P. strobiformis above, current and locust below, and standing slash.  Soils of decomposed, fine volcanic ash. Phenology: buds. 

Brian Reif, 4988.  6/7/2003. 		RM 806442	Barcode: RM0108081
_________________________________________________________________________

128.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Hyde Canyon W of Shearer Ranch, 13 air mi due W of Las Vegas.  Elev. 7720 ft.
T16N R14E S22 SW1/4; also SE1/4 S21.  35.6 N, 105.465 W; GPS Reading.  
Dry basin of ponderosa pine, with Gambels oak below, on coarse feldspar and with patches of exposed bedrock. Phenology: flowering & fruiting. 

Brian Reif, 6314.  7/8/2003. 		RM 806441
_________________________________________________________________________

129.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Pecos River W of Albright Creek, 2.5 air mi NE of Cowles; in vicinity of bridge.  Elev. 8400 ft.
T19N R12E S26 E1/2.  35.835 N, 105.641 W; GPS Reading.  
Trailside through grassy canyon bottom below south-facing canyon slope of ponderosa pine and thick Gambels oak. Phenology: flowering & fruiting. 

Brian Reif, 7112.  7/20/2003. 		RM 806440	Barcode: RM0108079
_________________________________________________________________________

130.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Santa Fe County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 102 through Pacheco Canyon, 5 air mi ENE of Tesque.  Elev. 8250-8540 ft.
T18N R10E S15 NE1/4; also NW1/4 S14.  35.787 N, 105.848 W; GPS Reading.  
Roadside and south-facing gravel slope of granite in canyon bottom of ponderosa pine. Phenology: flowering & fruiting. 

Brian Reif, 7722.  8/1/2003. 		RM 806438	Barcode: RM0108077
_________________________________________________________________________

131.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Valle Largo Trail 248 in vicinity of Rio Mora, 2.5 air mi ENE of Cowles; from meadow slope E on trail to Rio Mora crossing.  Elev. 8800-9180 ft.
T19N R12E S36 NE1/4; also T19N R13E S31 NW1/4.  35.8267 N, 105.6234 W; GPS Reading.  
East-facing slope with thick Quercus, Cercocarpus, and scattered mixed conifers; metamorphosed sandstone/limestone above; eroding granite forming gravel slope below. Phenology: flowering & fruiting. 

Brian Reif, 8645.  8/17/2003. 		RM 806436	Barcode: RM0108075
_________________________________________________________________________

132.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Glorieta Mesa: Valle Grande on Forest Road 323, ca 4.5-5 air mi S of South San Ysidro; ca 13.5-14 air mi SSE of Pecos.  Elev. 7500 ft.
T13N R13E S6 NE1/4.  35.3836 N, 105.5999 W; GPS Reading.  
Artemisia frigida/Bouteloua gracilis meadow dominated by forbs. Phenology: flowering. 

B. E. Nelson, 61685.  7/12/2004. 		RM 804874	Barcode: RM0108070
_________________________________________________________________________

133.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pablo Creek, 12 air mi WSW of Las Vegas.  Elev. 7000 ft.
T15N R14E S14 NE1/4; also SW1/4 S12.  35.5348 N, 105.4175 W; GPS Reading.  
Grassy canyon bottom with Salix and Populus in ponderosa pine forest. Phenology: flowering. 

Brian Reif, 10173.  8/7/2004. 		RM 804879	Barcode: RM0108083
_________________________________________________________________________

134.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, San Miguel County: Santa Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pablo Creek, 12 air mi WSW of Las Vegas.  Elev. 7000 ft.
T15N R14E S14 NE1/4; also SW1/4 S12.  35.5348 N, 105.4175 W; GPS Reading.  
Grassy canyon bottom with Salix and Populus in ponderosa pine forest. Phenology: flowering. 

Brian Reif, 10175.  8/7/2004. 		RM 804878	Barcode: RM0108082
_________________________________________________________________________

135.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Owl Creek/Bridger Mountains: cliffs on east side of Wind River Canyon, ca 12 air mi SSE of Thermopolis; ca 20 air mi N of Shoshoni.  Elev. 4640-5800 ft.
T6N R6E S15; also T41N R94W S21 and S28.  
Dry, west-facing hillside and cliffs. 

Robin Jones, 2063.  7/13/1991. 		RM 
     with Clay Lippencott
_________________________________________________________________________

136.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Owl Creek/Bridger Mountains: Hot Springs State Park.  Elev. 4420-4480 ft.
T43N R94W S31.  43.65167 N, 108.1872 W.  
Sagebrush slopes. 

Robin Jones, 2274.  7/29/1991. 		RM 
_________________________________________________________________________

137.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Cochise County: Coronado National Forest: Chiricahua Wilderness: Chiricahua Mountains: near Sentinel Peak: plot 381.  Elev. 8800 ft.
T19S R30E S1.  
Infrequent in Pinus ponderosa, P. strobiformis and Muhlebnbergia virescens habitat. Phenology: flowering & fruiting. 

William H. Moir, 389.  9/10/1974. 		USFS 475932
_________________________________________________________________________

138.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Johnson County: Big Horn Mountains: along South Fork Piney Creek, ca 2 mi SW of Story.  Elev. 5460-5700 ft.
T53N R84W S23 NE1/4.  44.5554 N, 106.9378 W; uncertainty 0.5 mi..  
At edges of open Pinus ponderosa forest, understory comprised of mostly Acer glabrum and Crataegus columbiana. Phenology: flowering. 

Erwin F. Evert, 8255.  7/9/1985. 		RM 622655	Barcode: RM0283105
_________________________________________________________________________

139.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Between Fish Creek Road and Cottonwood Creek, 28 road mi NW of Wheatland.  Elev. 1616 m.
T27N R70W S24.  42.2979 N, 105.1946 W; uncertainty 1 mi..  
Grassland. Phenology: flowering & fruiting. 

Jan Pollet, 33.  6/25/1989. 		RM 543848	Barcode: RM0283100
_________________________________________________________________________

140.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Along Brush Creek, 17 road mi E of Wheatland.  Elev. 5700 ft.
T22N R69W S34.  41.8346 N, 105.1089 W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!.  
Creek banks, dry, some standing water. Phenology: flowering & fruiting. 

Jan Pollet, 479.  8/23/1989. 		RM 543847	Barcode: RM0283086
_________________________________________________________________________

141.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Between Fish Creek Road and Cottonwood Creek, 28 road mi NW of Wheatland.  Elev. 1616 m.
T27N R70W S24.  42.2979 N, 105.1946 W; uncertainty 1 mi..  
Grassland. Phenology: flowering & fruiting. 

Jan Pollet, 66.  6/25/1989. 		RM 543846	Barcode: RM0283085
_________________________________________________________________________

142.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Camp Guernsey: ca 1.9 km WSW of Register Cliff Historical Monument, ca 1.6 km S of North Platte River.  Elev. 1372 m.
521450E, 4676500N.  
Scattered, grassland to intermittent stream with cliffs and ravines on limestone cap and loam with Juniperus scopulorum, Oenothera albicaulis, Koeleria macrantha, Penstemon erianthus var. erianthus, Bromus, and Poa spp. Phenology: flowering. 

Patricia P. Douglas, 247.  6/15/1995. 		RM 764935	Barcode: RM0283022
     with C. A. Popolizio, R. M. Smith
_________________________________________________________________________

143.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Cerros del Trasquilar, mountain "9127", immediately NW of intersection of the pipeline and Rito de los Indios.  Elev. 8807-9127 ft.
35 58' 5.4" N, 106 29' 35.7" W; uncertainty 1 mi..  
Roadside, meadows, mixed coniferous forests. Phenology: flowering. 

Ronald L. Hartman, 71443.  6/26/2001. 		RM 712231	Barcode: RM0070615
_________________________________________________________________________

144.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Cerros del Trasquilar, mountain "9127", immediately NW of intersection of the pipeline and Rito de los Indios.  Elev. 8807-9127 ft.
35 58' 5.4" N, 106 29' 35.7" W; uncertainty 1 mi..  
Roadside, meadows, mixed coniferous forests. Phenology: flowering. 

Ronald L. Hartman, 71443.  6/26/2001. 		RM 712232	Barcode: RM0070616
_________________________________________________________________________

145.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Big Horn Range: banks of West Fork of the Little Bighorn River; ca 1 mi downstream of Deer Park and confluence of Mann and Pumpkin creeks; ca 1.8 mi S of Montana.  Elev. 5240 ft.
T58N R90W S26 NW1/4 of NW1/4 of NW1/4.  44.9739 N, 107.6934 W; uncertainty 0.25 mi..  
South-facing semi-open slopes on north side of canyon in Pinus ponderosa community; soil humus-loam with thick needle duff; understory of Toxicodendron, Apocynum, Balsamorhiza sagitatta, and Juniperus. Phenology: fruiting. 

Walter Fertig, 17055.  8/9/1996. 		RM 681188	Barcode: RM0283087
     with George Jones
_________________________________________________________________________

146.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Jemez Falls Road to turn south; two track and bushwack to southwest corner of Ranch.  Elev. 8000-8164 ft.
35 49' 39.7" N, 106 37' 1.2" W; uncertainty 1 mi..  
Ponderosa pine forest with rock outcrops and swales. Phenology: flowering. 

Ronald L. Hartman, 73136.  7/30/2001. 		RM 711817	Barcode: RM0070617
_________________________________________________________________________

147.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Lawrence County: Black Hills National Forest; Big Hill Range plot; open ridge.  Elev. 5200 ft.
T5N R1E S12; S12.  
Phenology: flowering & fruiting. 

Charles P. Pase, 878.  8/28/1957. 		RMRS 
_________________________________________________________________________

148.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Pima County: Santa Catalina Mountains; near Summerhaven; upper Sabino Canyon.  Elev. 7500 ft.
Phenology: flowering & fruiting. 

Herbert W. Graham, 8-26-60.  8/26/1960. 		RMRS 
_________________________________________________________________________

149.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Pima County: Soldier Canyon; near spring.  Elev. 4300 ft.
Phenology: flowering & fruiting. 

Herbert W. Graham, 8-5-16.  8/5/1916. 		RMRS 
_________________________________________________________________________

150.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Sandoval County: Valles Caldera National Preserve: Jemez Mountains: Transquilar Peak and east slope.  Elev. 9462-9704 ft.
35 56.546' N, 106 30.401' W to 35 56.998' N, 106 30.533' W; GPS Reading.  
Ponderosa pine above Douglas fir on slope. Phenology: flowering & fruiting. 

Ronald L. Hartman, 78242.  7/24/2003. 		RM 768860	Barcode: RM0070614
_________________________________________________________________________

151.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Jackson County: Along U.S. Hwy 16, ca 3 mi E of Cottonwood.  Elev. 2350 ft.
T1S R19E S16.  
Phenology: flowering. 

C. L. Gilly, 808.  6/25/1953. 		RM 267015
     with G. W. Parmelee, Stella M. Wilson, and P. G. Coleman
_________________________________________________________________________

152.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Lawrence County: Black Hills National Forest: Big Hill Range Plot.  Elev. 5250 ft.
T5N R1E S12.  44.4095 N, 103.9401 W; uncertainty 1 mi..  
On 5% southeast slope; deep sand soil; open grassy ridge in pine with Poa pratensis, Poa compressa, Danthonia spicata, and Carex pennsylvanica. Common. Phenology: flowering & fruiting. 

Charles P. Pase, 878.  8/28/1957. 		USFS 476081	Barcode: USFS0071544
_________________________________________________________________________

153.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Fairburn.  Elev. 3450 ft.
T4S R8E S19.  43.6882 N, 103.2182 W; uncertainty 1 mi..  
Red foothills; grass and sage association; xero-mesophytic. Phenology: flowering & fruiting. 

Herman E. Hayward, 1482.  6/27/1927. 		RM 111320	Barcode: RM0283443
_________________________________________________________________________

154.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Buffalo Gap.  Elev. 3200-3500 ft.
T6S R7E S29.  
Red foothills; grass association; xero-mesophytic. Phenology: flowering & fruiting. 

Herman E. Hayward, 1552.  6/27/1927. 		RM 111320	Barcode: RM0283444
_________________________________________________________________________

155.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: Hot Springs, Hot Brook Creek.  Elev. 3470-3740 ft.
T7S R5E S10.  43.4519 N, 103.5093 W; uncertainty 2 mi..  
Streamside; elm, willow, and hackberry association; mesophytic. Phenology: flowering. 

Herman E. Hayward, 1564.  6/28/1927. 		RM 111321	Barcode: RM0283439
_________________________________________________________________________

156.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Black Hills: Wind Cave.  Elev. 4100 ft.
T6S R5E S1.  
Foothills; grass association; xero-mesophytic. Phenology: flowering & fruiting. 

Herman E. Hayward, 1696.  6/29/1927. 		RM 111321	Barcode: RM0283440
_________________________________________________________________________

157.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: 5 mi E of Edgemont.  Elev. 3780 ft.
T8S R3E S34.  
Foothills; south slope; grass association; xero-mesophytic. Phenology: flowering & fruiting. 

Herman E. Hayward, 2472.  7/28/1927. 		RM 97129	Barcode: RM0283438
_________________________________________________________________________

158.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Jewel Cave National Monument: U.S. Highway 16 between Jewel Cave Road and east boundary.  Elev. 5500 ft.
T4S R2E S1 NE1/4.  
Roadside in ponderosa pine forest. Phenology: flowering. 

Hollis Marriott, 9687.  7/4/1985. 		RM 365377	Barcode: RM0283442
_________________________________________________________________________

159.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Pennington County: 2 mi W of Conata.  Elev. 2480 ft.
T4S R16E S5.  43.7212 N, 102.225 W; uncertainty 1 mi..  
In a prairie dog town. Scattered occurrence. Phenology: buds. 

K. A. Fagerstone, s.n..  6/4/1974. 		RM 604536	Barcode: RM0283437
_________________________________________________________________________

160.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: Eagle's Nest Ranger Station pasture, N Cave Hills.  Elev. 3050 ft.
T22N R5E S9.  
Sandy loam; weed vegetation type. Phenology: flowering. 

O. E. York, 504.  8/3/1921. 		USFS 476086	Barcode: USFS0071543
_________________________________________________________________________

161.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Along old Fairburn Hwy 1 mi E of Hwy 79.  Elev. 3200-3400 ft.
T4S R8E S18.  43.7086 N, 103.2058 W; uncertainty 1 mi..  
On 10% slope;  west exposure; grassland with Melilotus officinalis, Agropyron smithii, Stipa viridula, Tragopogon dubius, and Poa pratensis. Occasional to scattered; flowers purple. Part 1 of 2.Elev closer to 3400 f (USGS 7.5') G.B. Phenology: vegetative only. 

Roger R. Kerbs, 34.  6/27/1967. 		USFS 476087	Barcode: USFS0071545
_________________________________________________________________________

162.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Along old Fairburn Hwy 1 mi E of Hwy 79.  Elev. 3200-3400 ft.
T4S R8E S18.  43.7086 N, 103.2058 W; uncertainty 1 mi..  
On 10% slope;  west exposure; grassland with Melilotus officinalis, Agropyron smithii, Stipa viridula, Tragopogon dubius, and Poa pratensis. Occasional to scattered; flowers purple. Part 2 of 2.Elev closer to 3400 f (USGS 7.5') G.B. Phenology: flowering & fruiting. 

Roger R. Kerbs, 34.  6/27/1967. 		USFS 476088	Barcode: USFS0071546
_________________________________________________________________________

163.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Fall River County: 
Phenology: flowering & fruiting. 

S. S. Visher, 2708.  8/3/1911. 		RM 76175	Barcode: RM0283441
_________________________________________________________________________

164.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Little Missouri Valley: 12 mi N of Crook.  Elev. 3040 ft.
T20N R2E S18.  
Steppe. Phenology: flowering. 

S. S. Visher, 395.  7/23/1910. 		RM 70070
_________________________________________________________________________

165.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Perkins County: Bixby.  Elev. 2460 ft.
T14N R13E S29.  
Phenology: flowering. 

S. S. Visher, 625.  7/30/1912. 		RM 76479
_________________________________________________________________________

166.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: ca 33 air mi NE of Rock River.  Elev. 6690-6750 ft.
T26N R71W S19 NW1/4.  42.2124 N, 105.4108 W.  
Creekside. Phenology: flowering & fruiting. 

B. A. Packer, 1448.  7/9/1997. 		RM 677623	Barcode: RM0282858
     with J. Brondum and T. McGowan
_________________________________________________________________________

167.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: Boulder Ridge, ca 14 air mi S of Laramie.  Elev. 7950 ft.
T13N R73W S16 SW1/4.  41.0961 N, 105.5834 W.  
Red beds with Cercocarpus grassland. Phenology: flowering & fruiting. 

B. A. Packer, 924.  6/26/1997. 		RM 677624	Barcode: RM0282857
     with J. Brondum and T. McGowan
_________________________________________________________________________

168.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Gunnison County:   Elev. 8591 ft.
T15S R84W S29.  38.7183 N, 106.8043 W; uncertainty 1 mi..  
Fine to sandy soil; high, cold, dry prairie. Phenology: flowering & fruiting. 

Betsy Smith, 85.  9/9/1986. 		RM 529280
     with R. Jones
_________________________________________________________________________

169.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, La Plata County: San Juan National Forest: Hermosa Creek above Dutch.  Elev. 7400 ft.
T37N R9W S7.  37.4878 N, 107.8989 W; uncertainty 1 mi..  
15 degree south slope, dry banks, gravelly clay and loam, Pinus ponderosa timber; with Gilia, Rhus and Poa. Phenology: flowering & fruiting. 

Gasper A. Loughridge, 172.  6/17/1934. 		USFS 475953
_________________________________________________________________________

170.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Moffat County: North Branch Red Wash: ca 10 km E of Little Snake River, ca 35 km N of Maybell.  Elev. 1900 m.
T9S R95W S9; also S10.  39.2915 N, 107.9987 W; uncertainty 2 mi..  
On sandy soil with Artemisia, Chrysothamnus, Agropyron, Stipa and Orzyopsis. Phenology: flowering. 

E. L. Painter, 346.  6/10/1987. 		RM 526580
_________________________________________________________________________

171.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: White River National Forest: Glenwood Canyon.  Elev. 6000 ft.
T5S R87W S15.  
Level clay at foot of cliff, roadside; with Chrysopsis, Bromus tectorum, Acer. Phenology: flowering & fruiting. 

E. R. Ware, 25.  6/19/1932. 		USFS 476080
_________________________________________________________________________

172.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Trinidad: Road to Walsenburg.
Phenology: flowering & fruiting. 

Earl L. Johnston, 224.  6/20/1917. 		RM 87540
     with George G. Hedgecock
_________________________________________________________________________

173.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Boulder County: Ward.  Elev. 9200 ft.
Railroad track. Phenology: flowering & fruiting. 

Edmund R. Cross, s.n..  8/31/1913. 		RM 157716
_________________________________________________________________________

174.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Douglas County: Sedalia.  Elev. 5700 ft.
Dry roadside. Phenology: flowering & fruiting. 

Edmund R. Cross, s.n..  7/12/1913. 		RM 159136
_________________________________________________________________________

175.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Jefferson County: Golden.  Elev. 5700 ft.
Railroad track. Phenology: flowering & fruiting. 

Edmund R. Cross, s.n..  7/20/1913. 		RM 313306
_________________________________________________________________________

176.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Montrose County: Naturita.  Elev. 5400 ft.
Hillside. Annotated by Gerald Ownbey and Yu-Tseng hsi. Phenology: flowering & fruiting. 

Edwin B. Payson, 487.  6/28/1914. 		RM 80949
_________________________________________________________________________

177.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Montrose County: Paradox.  Elev. 5400 ft.
Moist creek bottom. Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

Ernest P. Walker, 199.  6/28/1912. 		RM 75659
_________________________________________________________________________

178.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, San Miguel County: Norwood Hill.  Elev. 7000 ft.
Dry river bottoms. Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

Ernest P. Walker, 452.  8/11/1912. 		RM 75585
_________________________________________________________________________

179.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Boulder County: Near Boulder.
Phenology: flowering. 

Francis Ramaley, A. 140.  6/12/1900. 		RM 23198
_________________________________________________________________________

180.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: lower Big Bear Canyon, ca 2.5-3 air mi WNW of South Sawtooth Mountain and 1.5-2 air mi NNE of Blacktail Peak above La Bonte Creek, ca 27-28 air mi SSW of Douglas.  Elev. 6600-6880 ft.
T28N R73W S17 W1/4.  42.3975 N, 105.6246 W.  
Dry slopes and banks. Phenology: flowering & fruiting. 

B. E. Nelson, 42027.  7/22/1997. 		RM 677537	Barcode: RM0282870
_________________________________________________________________________

181.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Stove Prairie.
Phenology: flowering & fruiting. 

George E. Osterhout, 1383.  6/24/1897. 		RM 173233
_________________________________________________________________________

182.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Routt County: Bear River below Steamboat Springs.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

George E. Osterhout, 2264.  9//1900. 		RM 159087
_________________________________________________________________________

183.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Boulder County: Boulder  Elev. 5350 ft.
40.016 N, 105.2775 W; NAD 83, uncertainty 5 mi., Nat. Geog. TOPO!.  
Phenology: flowering. 

George E. Osterhout, 2481.  6/24/1901. 		RM 159138
_________________________________________________________________________

184.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Estes Park: Park Hill.
Phenology: flowering & fruiting. 

George E. Osterhout, 2813.  7/19/1903. 		RM 157718
_________________________________________________________________________

185.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Home Post Office.  Elev. 7500 ft.
T9N R74W S33.  
Phenology: flowering & fruiting. 

George E. Osterhout, 2898.  7/29/1904. 		RM 170398
_________________________________________________________________________

186.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Home Post Office.  Elev. 7500 ft.
T9N R74W S33.  
Phenology: flowering. 

George E. Osterhout, 2898.  7/29/1904. 		RM 50956
_________________________________________________________________________

187.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Thompson Cayon.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 3088.  8/16/1905. 		RM 170404
_________________________________________________________________________

188.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: Glenwood Springs.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

George E. Osterhout, 3401.  8/18/1906. 		RM 159085
_________________________________________________________________________

189.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Bent County: Las Animas.
Phenology: flowering & fruiting. 

George E. Osterhout, 3953.  6/17/1909. 		RM 157714
_________________________________________________________________________

190.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Yuma County: Wray.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 4014.  7/15/1909. 		RM 170399
_________________________________________________________________________

191.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Weld County: Windsor.
Phenology: flowering & fruiting. 

George E. Osterhout, 4161.  7/8/1909. 		RM 159140
_________________________________________________________________________

192.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Delta County: Delta.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

George E. Osterhout, 4502.  5/20/1911. 		RM 159068
_________________________________________________________________________

193.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: Glenwood Springs.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

George E. Osterhout, 4565.  5/24/1911. 		RM 159069
_________________________________________________________________________

194.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Delta County: Delta.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 4590.  7/22/1911. 		RM 159095
_________________________________________________________________________

195.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Delta County: Paonia.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 4611.  7/23/1911. 		RM 159025
_________________________________________________________________________

196.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: Glenwood Springs.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 4622.  7/25/1911. 		RM 159086
_________________________________________________________________________

197.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: Glenwood Springs.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

George E. Osterhout, 4692.  6/23/1912. 		RM 159027
_________________________________________________________________________

198.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Horsetooth Mountain.  Elev. 7200 ft.
T7N R70W S26.  40.5398 N, 105.19694 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Phenology: flowering & fruiting. 

George E. Osterhout, 4741.  7/16/1912. 		RM 312733
_________________________________________________________________________

199.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Thompson Canyon.
Phenology: fruiting. 

George E. Osterhout, 4810.  8/23/1912. 		RM 157697
_________________________________________________________________________

200.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Harmony District.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 4853.  7/28/1912. 		RM 159082
_________________________________________________________________________

201.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Sedgwick County: Julesburg.
Phenology: flowering & fruiting. 

George E. Osterhout, 4906.  6/11/1913. 		RM 159137
_________________________________________________________________________

202.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Routt County: Hayden.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 4946.  7/9/1913. 		RM 157713
_________________________________________________________________________

203.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Routt County: Hayden.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 4947.  7/9/1913. 		RM 159023
_________________________________________________________________________

204.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Routt County: Hayden.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

George E. Osterhout, 5108.  6/24/1914. 		RM 159048
_________________________________________________________________________

205.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Sedgwick County: Julesburg.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 5146a.  7/8/1914. 		RM 5146
_________________________________________________________________________

206.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Estes Park.  Elev. 7500 ft.
Phenology: flowering & fruiting. 

George E. Osterhout, 5161.  7/20/1914. 		RM 157712
_________________________________________________________________________

207.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: Glenwood Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 5271.  7/18/1915. 		RM 159092
_________________________________________________________________________

208.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: Glenwood Springs.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 5271.  7/18/1915. 		RM 84276
_________________________________________________________________________

209.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Ouray County: Ouray.  Elev. 7785 ft.
38.0225 N, 107.6714 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

George E. Osterhout, 5290.  7/21/1915. 		RM 159024
_________________________________________________________________________

210.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Garfield County: Rifle.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering & fruiting. 

George E. Osterhout, 7618.  6/25/1900. 		RM 159026
_________________________________________________________________________

211.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Horsetooth Mountain.  Elev. 7200 ft.
T7N R70W S26.  40.5398 N, 105.19694 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Phenology: flowering & fruiting. 

George E. Osterhout, s.n..  7/16/1912. 		RM 312734
_________________________________________________________________________

212.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Horsetooth Mountain.  Elev. 7200 ft.
T7N R70W S26.  40.5398 N, 105.19694 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Phenology: flowering & fruiting. 

George E. Osterhout, s.n..  7/16/1912. 		RM 312735
_________________________________________________________________________

213.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Eagle County: Hills W of Wolcott.  Elev. 7000 ft.
Dry hills: with sagebrush, juniper and rabbitbrush. Phenology: flowering & fruiting. 

Gerald B. Ownbey, 2623.  8/15/1958. 		RM 262355
     with Yu-tseng Hsi
_________________________________________________________________________

214.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pitkin County: 11 mi NW of Aspen.  Elev. 7100 ft.
Valley, with sagebrush: raw soil at roadside. Phenology: flowering & fruiting. 

Gerald B. Ownbey, 2624.  8/16/1958. 		RM 262356
     with Yu-tseng Hsi
_________________________________________________________________________

215.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Gunnison County: 18.5 mi NE of Oliver on road to McClure's Pass.  Elev. 8400 ft.
Dry hillside, with sagebrush and juniper. Phenology: flowering & fruiting. 

Gerald B. Ownbey, 2629.  8/16/1958. 		RM 262302
     with Yu-tseng Hsi
_________________________________________________________________________

216.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Archuleta County: Piedra: S of Chimney Rock Mesa trail via Devil Creek.  Elev. 7000 ft.
Annotated by Gerald Ownbey and Yu-Tseng hsi. Phenology: flowering & fruiting. 

Hazel M. Schmoll, 1247.  6/21/1924. 		RM 159028
_________________________________________________________________________

217.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Archuleta County: Piedra
Between shrubs. Annotated by Gerald Ownbey and Yu-Tseng hsi. Phenology: flowering. 

Hazel M. Schmoll, 1247.  6/21/1924. 		RM 98651
_________________________________________________________________________

218.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Elbert County: 4 mi NE of Agate.
Badly eroded plains. Phenology: flowering & fruiting. 

Marion Ownbey, 1305.  6/26/1937. 		RM 175349
_________________________________________________________________________

219.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Arapahoe County: Buckley Air Force Base: south end of transect 845 m E of southwest corner of the installation.  521593E 4392993N to 521977E 4392503N.  Elev. 1702-1711 m.
zone 13, 4392993E, 521593N; GPS Reading.  
Rolling shortgrass prairie on silt-like loam to sandy loam; with Opuntia polyacantha, Artemisia frigida, Convolvulus arvensis, Hesperostipa comata, Bouteloua gracilis, Elymus elymoides. Phenology: flowering. 

N. E. Hastings, 208.  6/29/2005. 		RM 793982
     with C. Bern
_________________________________________________________________________

220.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Montrose County: Near the Cimarron River.  Elev. 8000 ft.
Steep slope. Phenology: flowering & fruiting. 

Reed C. Rollins, 1989.  //. 		USFS 476079
_________________________________________________________________________

221.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: US Hwy 287, 15 mi N of Fort Collins.  Elev. 6000 ft.
Moist roadside drainage. Phenology: flowering. 

Robert C. Gardner, 113.  7/1/1971. 		RM 293085
_________________________________________________________________________

222.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Road to Red Feather Lakes, ca 3 mi W of Forks Cafe.
Roadside. Phenology: flowering. 

Robert C. Gardner, 114.  7/1/1971. 		RM 293086
_________________________________________________________________________

223.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Along County Road 23, east side of Horsetooth Reservoir, ca 5 mi W of Fort Collins.  Elev. 1695 m.
40 33' 37" N, 105 8' 89" W.  
Phenology: flowering & fruiting. 

Robert Merril King, 10893.  6/15/1999. 		RM 717975
     with Robert M. Garvey
_________________________________________________________________________

224.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron:  near The Ruins, 2 mi W of Pueblano Trail Camp.  Elev. 8400 ft.
Phenology: flowering. 

Ronald L. Hartman, 173.  7/21/1966. 		RM 283536
_________________________________________________________________________

225.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: Cimarron Canyon, 2 mi NW of junction with Turkey Creek Canyon.  Elev. 6800 ft.
Roadcut. Phenology: flowering & fruiting. 

Ronald L. Hartman, 2132.  6/26/1968. 		RM 299520
_________________________________________________________________________

226.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Philmont Scout Ranch, near Cimarron: Cimarron Canyon, 2 mi NW of junction with Turkey Creek Canyon.  Elev. 6800 ft.
Roadside. Phenology: flowering. 

Ronald L. Hartman, 2236.  7/2/1968. 		RM 299521
_________________________________________________________________________

227.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Rio Blanco County: 2.2 mi NNE of junction of Jessup Gulch and Piceance Creek Road.  Elev. 2255 m.
T2S R96W S26 NE1/4 of SW1/4 of NW1/4.  
Disturbed site with Bromus and Oryzopsis. Phenology: flowering & fruiting. 

Steve L. O'Kane, 82-440.  6/28/1982. 		RM 340163
     with W. Kelley and J. Riefler
_________________________________________________________________________

228.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: Along CO Hwy 36, 5 mi from Estes Park.  Elev. 8000 ft.
T4N R72W S2.  40.3396 N, 105.4185 W; uncertainty 1 mi..  
Dry field. Phenology: flowering & fruiting. 

Thomas W. Nelson, 7839.  7/4/1985. 		RM 568626
     with Jane P. Nelson
_________________________________________________________________________

229.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Larimer County: East side of CO Hwy 36 ca 5 mi S of Lake Estes.  Elev. 7800 ft.
T1S R72W S2; also S3.  39.9933 N, 105.4177 W; uncertainty 2 mi..  
Mixed evergreen forest. Phenology: flowering & fruiting. 

Thomas W. Nelson, 8869.  7/29/1990. 		RM 737175
     with Jane P. Nelson
_________________________________________________________________________

230.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Montezuma County: Mesa Verde National Park.
Jul-Aug 1913 Phenology: flowering & fruiting. 

W. H. Haas, 66.  7//1913. 		RM 78998
_________________________________________________________________________

231.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Boulder County: Bluebell Canyon.
Annotated by Gerald B. Ownbey and Yu-Tseng Hsi. Phenology: flowering. 

W. W. Robbins, 1589.  6/18/1906. 		RM 57413
_________________________________________________________________________

232.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: S of Walsh, S of Road U.
Sandy fields. Sheet 2 of 2. Phenology: flowering & fruiting. 

William A. Weber, 18212.  7/12/1991. 		RM 580961
_________________________________________________________________________

233.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: S of Walsh, S of Road U.
Sandy fields. Sheet 1 of 2. Phenology: vegetative only. 

William A. Weber, 18212.  7/12/1991. 		RM 580962
_________________________________________________________________________

234.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Picture Canyon, Pasture 2A.
Phenology: fruiting. 

William A. Weber, 18737.  7/11/1993. 		RM 734226
     with R. C. Witmann
_________________________________________________________________________

235.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Eagle County: Flat Tops/White River Plateau: Colorado River, ca 20 air mi N of Eagle.  Elev. 6600 ft.
T2S R84W S2.  39.9119 N, 106.7701 W.  
Terrace alluvium and dry wash, with Yucca, sagebrush, and narrowleaf cottonwood. 

James P. Vanderhorst, 2671.  6/17/1991. 		 708442
_________________________________________________________________________

236.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Routt County: Flat Tops/White River Plateau: Beaver Creek, ca 20 air mi SSW of Hayden.  Elev. 7000 ft.
T4N R89W S32.  40.2747 N, 107.4105 W.  
South exposure, dry heavy clay, with sagebrush and mountain mahogany. 

James P. Vanderhorst, 2907.  6/28/1991. 		 
_________________________________________________________________________

237.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Eagle County: Flat Tops/White River Plateau: Colorado River, ca 18 air mi NNE of Eagle.  Elev. 6900 ft.
T2S R84W S1.  39.9119 N, 106.7508 W.  
Dry hills above river, with pinyon pine and juniper. 

James P. Vanderhorst, 3336.  7/15/1991. 		 
     with Carlos Palaci
_________________________________________________________________________

238.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Moffat County: Flat Tops/White River Plateau: Monument Butte, ca 6 air mi SW of Hamilton.  Elev. 6700-7250 ft.
T4N R92W S24; also S25.  40.3023 N, 107.6626 W.  
Sandstone and shale outcrop and associated slopes and ridge. 

Ronald L. Hartman, 25687.  6/22/1990. 		 
_________________________________________________________________________

239.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: West Flat Top Mountain, ca 30 air mi S of Wamsutter; ca 18 air mi NW of Baggs.  Elev. 7400-7420 ft.
T14N R94W S1 NE1/4.  41.2144 N, 107.9258 W; uncertainty 0.5 mi..  
Small draws off the top of the butte. Phenology: flowering. 

B. E. Nelson, 38422.  7/10/1996. 		RM 670670	Barcode: RM0282878
_________________________________________________________________________

240.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Fremont Canyon along County Road 408, ca 6.8 air mi SW of Alcova.  Elev. 5600 ft.
T29N R83W S20 NE1/4; also S21.  42.4675 N, 106.8064 W.  
Disturbed gravelly area among sagebrush. Phenology: flowering. 

Amy J. Roderick, 4542.  6/7/1998. 		RM 
_________________________________________________________________________

241.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: southwestern extent of Joe Hay Rim, ca 6.5 air mi S of Oregon Buttes; ca 40 air mi NNE of Rock Springs.  Elev. 7560-7785 ft.
T25N R101W S16 W1/4; also E1/4 S17.  42.1405 N, 108.876 W.  
Sagebrush covered slope. Phenology: flowering. 

Beth Ward, 2402b.  7/11/1996. 		 670671	Barcode: RM0282879
_________________________________________________________________________

242.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: flats and buttes adjacent to Pacific Creek, ca 1 air mi S of Wyo Hwy 28; ca 2 air mi E of confluence of Pacific and Jack Morrow creeks; ca 12.5 air mi NE of Farson.  Elev. 6800-6825 ft.
T26N R104W S28 E1/4; also W1/4 S27.  42.1991 N, 109.2262 W.  
Butte above creek, sagebrush. Phenology: flowering & fruiting. 

Beth Ward, 5702.  6/20/1997. 		RM 672386	Barcode: RM0282876
_________________________________________________________________________

243.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sweetwater County: South-Central Wyoming: Green River Basin: slopes and draws of White Mountain draining E, ca 6 air mi NNE of Pilot Butte; ca 3 air mi W of Killpecker Creek; ca 9.5 air mi NNW of Rock Springs.  Elev. 6660-7505 ft.
T20N R105W S7; also NE1/4 S18, T20N R106W S12; also NE1/4 S13.  41.7315 N, 109.3014 W.  
Clay draw, mid-level. Phenology: flowering & fruiting. 

Beth Ward, 6947.  7/23/1997. 		RM 672385	Barcode: RM0282877
_________________________________________________________________________

244.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Washington, Ferry County: Western Colville National Forest and Vicinity: Little Vulcan Mountain, ca 3.5 air mi W of Curlew.  Elev. 3400-4180 ft.
T40N R33E S5 South1/2.  48.9935 N, 118.6684 W.  
South facing slopes and ravines; scattered forest interspersed with steppe and rock outcrops. Phenology: flowering & fruiting. 

Jean Wood, 5182.  6/27/1996. 		 
_________________________________________________________________________

245.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Washington, Ferry County: Western Colville National Forest and Vicinity: west of the Kettle River, ca 2.5 air mi SW of Danville.  Elev. 3100 ft.
T40N R34E S17 NW1/4.  48.9649 N, 118.537 W.  
Open slopes. Phenology: flowering & fruiting. 

Jean Wood, 5489.  6/30/1996. 		 
_________________________________________________________________________

246.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Washington, Garfield County: Umatilla National Forest and Vicinity: Sunset Point near Forest Road 40 and 4027, ca 10 air mi S of Peola.  Elev. 5300-5984 ft.
T8N R42E S22 NE1/4.  46 9' 53" N, 117 31' 34" W; GPS Reading.  
Rocky slope with mixed forbs and shrubs; soil reddish talus; slope 20; aspect southwest. Phenology: fruiting. 

Heather Bradtke, 2826.  7/20/2001. 		RM 
_________________________________________________________________________

247.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sublette County: Wyoming/Salt River Ranges: Wyoming Range: ridge between Red Creek and Lime Creek leading to Ramshorn Peak. AlsoS8, 17, & 18.  Elev. 6800-8800 ft.
T38N R114W S7.  43.2706 N, 110.5636 W.  
South-facing sagebrush-grassy slope; claystone talus slope; north-facing Douglas fir forest: north-facing Douglas fir forest. Phenology: flowering. 

Walter Fertig, 6505a.  8/21/1990. 		RM 656156	Barcode: RM0282871
_________________________________________________________________________

248.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: off Wyo Hwy 120 on Red Ridge, ca 5.5 air mi E of Grass Creek Post Office; ca 26.5 air mi NW of Thermopolis.  Elev. 5500 ft.
T46N R97W S19.  43.93889 N, 108.5375 W; uncertainty 1 mi..  
Clay bottoms. 

B. E. Nelson, 10113.  6/29/1983. 		RM 931810	Barcode: RM0094912
_________________________________________________________________________

249.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Bighorn Basin: ca 1.5 mi N of Silvertip Oil Field; ca 19 air mi NW of Powell.  Elev. 4400 ft.
T58N R100W S21.  44.9937 N, 108.9338 W.  
Sandy-clay slopes on ridge with sandstone outcrops. 

B. E. Nelson, 13612.  6/21/1987. 		RM 931809	Barcode: RM0094911
_________________________________________________________________________

250.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Washington, Columbia County: Umatilla National Forest and Vicinity: near Little Turkey residence, ca 15 air mi SSE of Dayton.  Elev. 4800-5600 ft.
T7N R40E S1.  46 6' 48" N, 117 45' 22" W; GPS Reading.  
Scab, open slope; soil rubble; slope 0-20; aspect south. Phenology: fruiting. 

Heather Bradtke, 3798.  8/3/2001. 		RM 
_________________________________________________________________________

251.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Washington, Columbia County: Umatilla National Forest and Vicinity: Forest Road 64, ca 2 mi W of Bluewood Ski Area, ca 10 air mi E of Walla Walla.  Elev. 5200-5600 ft.
T7N R39E S14; also S13.  46 5' 16" N, 117 54' 4" W; uncertainty 2 mi..  
Scab; soil shallow. Phenology: fruiting. 

Heather Bradtke, 3923.  8/3/2001. 		RM 
_________________________________________________________________________

252.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Bighorn Basin: ca 3.5-4 mi NE of Clarks Fork Canyon off Wyo Hwy 292, ca 26 air mi NNW of Cody.  Elev. 4400 ft.
T57N R103W S36.  44.8775 N, 109.2522 W.  
Moraine. 

B. E. Nelson, 15608.  6/9/1988. 		RM 931808	Barcode: RM0094910
     with Erik Nelson
_________________________________________________________________________

253.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Carbon County: Hanna Basin: ca 7.5 air mi W of Hanna, ca 28.5 air mi NNE of Rawlins, S of Big Ditch. Arch Mineral Corporation coal lease.  Elev. 6600 ft.
T22N R83W S24.  41.8619 N, 106.7119 W; uncertainty 1 mi..  
Common on north-facing slope in upland sagebrush with Artemisia tridentata and Alyssum. 

B. E. Nelson, 1884.  7/18/1978. 		RM 
     with Tom Turner, Mariah Associates
_________________________________________________________________________

254.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Owl Creek/Bridger Mountains: Bridger Mountains: Ditch Creek Canyon, S and above Buffalo Creek, ca 14 air mi ESE of Thermopolis.  Elev. 6100-6300 ft.
T42N R93W S25; also S36.  43.581 N, 107.9669 W; uncertainty 2 mi..  
Steep, rocky westerly facing canyon walls. 

B. E. Nelson, 21922.  7/31/1991. 		RM 
_________________________________________________________________________

255.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Washakie County: Big Horn Mountains: Leigh Canyon off Tensleep Canyon, ca 9 air mi NE of Ten Sleep.  Elev. 6100 ft.
T48N R87W S35.  44.0853 N, 107.28056 W; uncertainty 1 mi..  
Stony, open slopes. Phenology: flowering & fruiting. 

B. E. Nelson, 5674.  6/17/1980. 		RM 348673	Barcode: RM0283066
_________________________________________________________________________

256.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Washakie County: Big Horn Mountains: along the Nowater Trail just off the Upper Nowood Road, ca 2.5 air mi SW of Nowood, ca 31.5 air mi S of Ten Sleep.  Elev. 5600 ft.
T42N R88W S30.  43.5811 N, 107.464 W; uncertainty 1 mi..  
Red sandy slopes. 

B. E. Nelson, 5851.  7/8/1980. 		RM 930311	Barcode: RM0091591
_________________________________________________________________________

257.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Johnson County: Big Horn Mountains: along Clear Creek just off U.S. Hwy 16, ca 5.3 air mi WSW of Buffalo.  Elev. 5500 ft.
T50N R83W S2.  44.3314 N, 106.81139 W; uncertainty 1 mi..  
Stony, dry canyon bottom. 

B. E. Nelson, 6693.  7/20/1980. 		RM 348672	Barcode: RM0283065
_________________________________________________________________________

258.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Powder River Basin: ridge between Stockade Beaver and Whoopup Creeks, ca 11.5 air mi SSE of Newcastle.  Elev. 4200 ft.
T43N R61W S13.  43.7053 N, 104.1308 W; uncertainty 1 mi..  
Sandstone ridge with scattered ponderosa pine and juniper. 

B. E. Nelson, 8737.  7/6/1982. 		RM 
_________________________________________________________________________

259.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Bighorn Basin: along Cottonwood Creek, ca 5 air mi W of Hamilton Dome; ca 24.5 air mi WNW of Thermopolis.  Elev. 6200 ft.
T44N R98W S19.  43.7664 N, 108.6622 W; uncertainty 1 mi..  
Stream bottom. 

B. E. Nelson, 9849.  6/23/1983. 		RM 931811	Barcode: RM0094913
     with Robert S. Kirkpatrick
_________________________________________________________________________

260.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Government Canyon (T. Moore Ranch), ca 6 air mi NNE of Seely.  Elev. 3800 ft.
T57N R64W S30 S1/2; N1/2 S31.  44.9019 N, 104.5881 W; uncertainty 1 mi..  
Rocky slopes and ridgetops with scattered pines and junipers. 

Hollis Marriott, 4063.  7/5/1983. 		RM 
_________________________________________________________________________

261.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: North Redwater Creek, ca 6.5 air mi WNW of Beulah.  Elev. 3900 ft.
T53N R61W S17 W1/2.  44.5822 N, 104.20222 W; uncertainty 1 mi..  
Roadcut in grassland. 

Hollis Marriott, 4415.  7/12/1983. 		RM 
_________________________________________________________________________

262.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.  Elev. 4400-4600 ft.
T52N R65W S23 SE1/4; and SW1/4 S24.  44.47639 N, 104.6328 W; uncertainty 1 mi..  
Pine ridge with grassland understory. 

Hollis Marriott, 4617.  7/14/1983. 		RM 
_________________________________________________________________________

263.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: U.S. Hwy 14 near Thorn Divide, ca 1 air mi S of Carlile.  Elev. 4300 ft.
T52N R66W S20 SE1/4; also NE1/4 S29.  44.47639 N, 104.8117 W; uncertainty 1 mi..  
Deciduous thickets in north-trending draw. 

Hollis Marriott, 4752.  7/21/1983. 		RM 
_________________________________________________________________________

264.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: west side of ridge S of Elk Mountain (USFS Road 818) near Mix Spring, ca 13.5 air mi SE of Newcastle.  Elev. 4800 ft.
T43N R60W S21; also S28.  43.6911 N, 104.0705 W; uncertainty 2 mi..  
Southeast-facing slope with scattered pines and junipers. 

Hollis Marriott, 7182.  6/26/1984. 		RM 
_________________________________________________________________________

265.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: northeast fork of headwaters of Left Creek, ca 4.5 air mi SW of the Missouri Buttes.  Elev. 4300 ft.
T53N R66W S18; also R67W and S13.  44.57889 N, 104.83167 W; uncertainty 2 mi..  
Sagebrush-grassland (Artemisia cana and A. tridentata). 

Hollis Marriott, 7671.  7/6/1984. 		RM 
_________________________________________________________________________

266.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: West Plum Creek ca 1 mi N of confluence with East Plum Creek, ca 8 air mi NNW of Newcastle.  Elev. 4700 ft.
T46N R62W S14.  43.9661 N, 104.2678 W; uncertainty 1 mi..  
Grassland in canyon botton, on sandy soil. 

Hollis Marriott, 8403.  8/2/1984. 		RM 371855	Barcode: RM0283059
_________________________________________________________________________

267.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Sweetwater Rocks, ca 8 air mi ENE of Jeffrey City.  Elev. 6400-6800 ft.
T29N R91W S12.  42.4966 N, 107.6714 W; uncertainty 1 mi..  
Sagebrush grassland. Phenology: flowering & fruiting. 

June Haines, 5359.  8/4/1985. 		RM 387287	Barcode: RM0283063
     with Georgia Haines
_________________________________________________________________________

268.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Granite Mountain Uplift: S of Dishpan Butte, ca 6 air mi NNW of Sweetwater Station.  Elev. 6700 ft.
T31N R95W S29.  42.6292 N, 108.2192 W.  
Sagebrush grassland. Phenology: flowering. 

June Haines, 5442.  8/10/1985. 		RM 387288	Barcode: RM0283012
     with Georgia Haines
_________________________________________________________________________

269.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Sweetwater Rocks: hill with Frank Triangulation Station on top, ca 7 air mi NE of Jeffrey City.  Elev. 6600-7000 ft.
T30N R92W S1; also S2, S11, and S12.  42.5986 N, 107.7894 W; uncertainty 3 mi..  
Drainage around granite boulders. Phenology: flowering. 

June Haines, 5591.  8/17/1985. 		RM 387289	Barcode: RM0283122
_________________________________________________________________________

270.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: Red Canyon Rim, ca 14 air mi SSE of Lander.  Elev. 6100-6500 ft.
T31N R99W S23; also S25 and S26.  42.6439 N, 108.6298 W.  
Patches of soil in nugget sandstone outcrop. 

June Haines, 6692.  6/20/1986. 		RM 387290	Barcode: RM0045020
_________________________________________________________________________

271.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: Red Canyon Rim, ca 14 air mi SSE of Lander.  Elev. 6100-6500 ft.
T31N R99W S23; also S25 and S26.  42.6439 N, 108.6298 W.  
Sagebrush-juniper grassland. 

June Haines, 6708.  6/20/1986. 		RM 387291	Barcode: RM0045019
_________________________________________________________________________

272.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Natrona County: Sweetwater Rocks: Savage Pocket, ca 13 air mi NE of Muddy Gap Junction.  Elev. 6120-6800 ft.
T29N R87W S16.  42.482 N, 107.2585 W; uncertainty 1 mi..  
Yucca-sagebrush grassland just above meadow by creek. Phenology: flowering & fruiting. 

June Haines, 6755.  6/21/1986. 		RM 387292	Barcode: RM0283115
     with Georgia Haines
_________________________________________________________________________

273.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Natrona County: Sweetwater Rocks: Savage Pocket, ca 13 air mi NE of Muddy Gap Junction.  Elev. 6120-6800 ft.
T29N R87W S16.  42.482 N, 107.2585 W; uncertainty 1 mi..  
Wall of small canyon, above creek. Phenology: flowering & fruiting. 

June Haines, 6768.  6/21/1986. 		RM 387293	Barcode: RM0283113
     with Georgia Haines
_________________________________________________________________________

274.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Top of Beaver Rim, SW of Devils Gap, ca 6.5 air mi NNW of Sweetwater Station.  Elev. 6900-7400 ft.
T31N R96W S36.  42.6146 N, 108.2583 W; uncertainty 1 mi..  
Sandy soil under Pinus flexilis. Phenology: flowering. 

June Haines, 6838.  6/27/1986. 		RM 387294	Barcode: RM0283033
_________________________________________________________________________

275.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Beaver Rim, ca 6 air mi NW of Sweetwater Station.  Elev. 6680-6920 ft.
T30N R96W S2.  42.5999 N, 108.2779 W; uncertainty 1 mi..  
Limestone slopes. Phenology: flowering. 

June Haines, 6912.  7/20/1986. 		RM 387295	Barcode: RM0283032
     with Georgia Haines
_________________________________________________________________________

276.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Granite Mountain Uplift: edge of Beaver Rim: W of Rock Creek Mountain, ca 17 air mi NNE of Sweetwater Station.  Elev. 6880-7060 ft.
T32N R94W S3; also S10.  42.7759 N, 108.0628 W; uncertainty 2 mi..  
Edge of steep bank. Phenology: flowering. 

June Haines, 6975.  7/27/1986. 		RM 387296	Barcode: RM0283030
     with Georgia Haines
_________________________________________________________________________

277.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Alkali Creek; ca 9 air mi NNE of Soda Wells.  Elev. 3800 ft.
T55N R70W S3.  44.7794 N, 105.25861 W; uncertainty 1 mi..  
Margins of stream, wet meadows, eroded plains; plains. Phenology: flowering. 

Keith H. Dueholm, 2514.  6/22/1978. 		RM 324354	Barcode: RM0283016
     with Ronald L. Hartman and Mary Alice Sanguinetti.
_________________________________________________________________________

278.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 2.5 air mi S of Montana, 5.5 air mi W of Wyo Hwy 59.  Elev. 3800 ft.
T57N R72W S2.  44.9589 N, 105.4836 W; uncertainty 1 mi..  
Ponderosa pine slopes, eroded plains; plains. 

Keith H. Dueholm, 2627.  6/23/1978. 		RM 324208	Barcode: RM0283119
     with Ronald L. Hartman and Mary Alice Sanguinetti.
_________________________________________________________________________

279.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: along Eightyfive Divide; ca 7 air mi S of Montana, 5 mi E of Hwy 59.  Elev. 3600 ft.
T57N R70W S28 SE1/4.  44.9022 N, 105.28 W; uncertainty 0.5 mi..  
Rolling plains and sandstone outcrops; plains. Phenology: flowering. 

Keith H. Dueholm, 2647.  6/24/1978. 		RM 324345	Barcode: RM0283047
     with Ronald L. Hartman and Mary Alice Sanguinetti.
_________________________________________________________________________

280.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 6.5 air mi SW of Rockypoint.  Elev. 4000 ft.
T56N R69W S17.  44.8411 N, 105.1733 W; uncertainty 1 mi..  
Deep ravine in ponderosa pine covered uplift, slopes; roadside. Phenology: flowering. 

Keith H. Dueholm, 2902.  6/26/1978. 		RM 324351	Barcode: RM0283093
_________________________________________________________________________

281.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 2.5 air mi SW of Rockypoint.  Elev. 4200 ft.
T57N R69W S15; also S22.  44.9311 N, 105.1375 W; uncertainty 2 mi..  
Rocky slope, ponderosa pine hills, deep ravine; plains. Phenology: flowering. 

Keith H. Dueholm, 2997.  6/26/1978. 		RM 324342	Barcode: RM0282862
_________________________________________________________________________

282.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 10.5 air mi NW of Rockypoint.  Elev. 3500 ft.
T58N R70W S32; also S33.  44.97556 N, 105.3 W; uncertainty 2 mi..  
Eroded plain, sandstone outcrops; eroded plain. Phenology: flowering. 

Keith H. Dueholm, 3054.  6/26/1978. 		RM 324357	Barcode: RM0283041
_________________________________________________________________________

283.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Fletcher Canyon.  Elev. 4800 ft.
T42N R76W S16; also S21.  43.6119 N, 105.9977 W; uncertainty 2 mi..  
Dissected plain and open canyon slopes; canyon bottom. Phenology: flowering. 

Keith H. Dueholm, 3116.  6/28/1978. 		RM 324432	Barcode: RM0283013
_________________________________________________________________________

284.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Converse County: Powder River Basin: head of Grays Draw.  Elev. 5100 ft.
T40N R73W S23; also S26.  43.4269 N, 105.585 W; uncertainty 2 mi..  
Plains, sandstone outcrops, and hard sand along pipeline route; plains. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3340.  7/5/1978. 		RM 324434	Barcode: RM0283114
     with Mary Alice Sanguinetti
_________________________________________________________________________

285.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 15 air mi N of Gillette.  Elev. 4200 ft.
T53N R72W S31.  44.53 N, 105.565 W; uncertainty 1 mi..  
Low ditches, edge of plowed field; edge of field. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3410.  7/6/1978. 		RM 324356	Barcode: RM0283069
     with Mary Alice Sanguinetti
_________________________________________________________________________

286.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Wyo Hwy 59, ca 4 mi S of Little Powder River.  Elev. 3900 ft.
T52N R72W S1; also S12.  44.5169 N, 105.4633 W; uncertainty 2 mi..  
Streambank, shaded ravine, gravel slope, highway right-of-way; right-of-way, plains. Phenology: flowering. 

Keith H. Dueholm, 3512.  7/7/1978. 		RM 324433	Barcode: RM0283014
     with Mary Alice Sanguinetti
_________________________________________________________________________

287.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Horse Creek Ranch, ca 9 air mi NW of Weston.  Elev. 4000 ft.
T55N R72W S26.  44.72083 N, 105.4825 W; uncertainty 1 mi..  
Eroded uplands, ponderosa pine ridges, ravines, sagebrush plains, open clayey slopes, loose talus; plains, pine slopes. Phenology: flowering. 

Keith H. Dueholm, 3570.  7/8/1978. 		RM 324344	Barcode: RM0283099
     with Mary Alice Sanguinetti
_________________________________________________________________________

288.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 11 air mi NW of Weston.  Elev. 3900 ft.
T55N R72W S29; also S30.  44.7206 N, 105.54278 W; uncertainty 2 mi..  
Plains, marsh along holding pond, flats, gravel roadside; plains. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3615.  7/8/1978. 		RM 324350	Barcode: RM0283079
     with Mary Alice Sanguinetti
_________________________________________________________________________

289.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 11 air mi NW of Weston.  Elev. 4100 ft.
T55N R72W S16.  44.7497 N, 105.5225 W; uncertainty 1 mi..  
Rocky slope, clinker outcrops, plains, ravine, wet soil in draw, below holding dam; plains. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3658.  7/8/1978. 		RM 324339	Barcode: RM0283089
     with Mary Alice Sanguinetti
_________________________________________________________________________

290.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 10 road mi NNW of Gillette.  Elev. 4300 ft.
T52N R73W S36.  44.44167 N, 105.5825 W; uncertainty 1 mi..  
Rolling plains, sandstone uplift, outcrops, sandy ravines, highway right-of-way; plains. Phenology: flowering. 

Keith H. Dueholm, 3748.  7/9/1978. 		RM 324340	Barcode: RM0283186
     with Mary Alice Sanguinetti
_________________________________________________________________________

291.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 20 air mi N of Spotted Horse.  Elev. 3700 ft.
T58N R75W S22; also S23 and S26.  44.9975 N, 105.8675 W; uncertainty 2 mi..  
Pine covered ridges, ravines, loose talus slopes, grassland, slopes; plains, roadside. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3877.  7/10/1978. 		RM 324346	Barcode: RM0283067
     with Mary Alice Sanguinetti
_________________________________________________________________________

292.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Napier Road, ca 1 mi E of Johnson County.  Elev. 4700 ft.
T48N R76W S15; also S16.  44.1333 N, 105.9797 W; uncertainty 2 mi..  
Plains, draw, eroded slopes, sandy roadcuts; draw. Phenology: flowering. 

Keith H. Dueholm, 4277.  7/15/1978. 		RM 324343	Barcode: RM0283081
     with Mary Alice Sanguinetti
_________________________________________________________________________

293.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Indian Tree Hill, ca 5 mi NW of Rozet.  Elev. 4700 ft.
T50N R70W S2; also S3.  44.3428 N, 105.2372 W; uncertainty 2 mi..  
Ponderosa pine covered buttes, steep shale and talus slopes, sagebrush plains at summit, ravines; plains. Phenology: flowering. 

Keith H. Dueholm, 4542.  7/22/1978. 		RM 324348	Barcode: RM0283042
_________________________________________________________________________

294.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 4 air mi ENE of Adonis.  Elev. 4000 ft.
T52N R69W S5; also T53N R69W S32 and S33.  44.5186 N, 105.1825 W; uncertainty 2 mi..  
Sagebrush plains, ponderosa pine slopes, ravines, eroded slopes, creek bottom; slopes. 

Keith H. Dueholm, 4694.  7/23/1978. 		RM 324341	Barcode: RM0283185
_________________________________________________________________________

295.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: along Flat Creek, ca 9 air mi ENE of Soda Wells.  Elev. 4100 ft.
T54N R69W S11.  44.67722 N, 105.1175 W; uncertainty 1 mi..  
Plains, meadows along creek, "permanent" water in stream; plains. Phenology: flowering. 

Keith H. Dueholm, 5527.  8/5/1978. 		RM 324431	Barcode: RM0282868
_________________________________________________________________________

296.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Kingsbury Road, ca 7 air mi W of Gillette.  Elev. 4500 ft.
T50N R73W S29.  44.2814 N, 105.6617 W; uncertainty 1 mi..  
Rocky hills, plains, holding pond, wet mud along creekbeds, flats, moist grassy ditches; slopes. Phenology: flowering. 

Keith H. Dueholm, 5699.  8/8/1978. 		RM 324358	Barcode: RM0282864
_________________________________________________________________________

297.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Powder River Basin: ca 9.5 air mi NNW of Clearmont.  Elev. 4300 ft.
T56N R80W S35.  44.7811 N, 106.46056 W; uncertainty 1 mi..  
Plains, flats along dry creekbed; near creekbed. Phenology: fruiting. 

Keith H. Dueholm, 5976.  8/11/1978. 		RM 324355	Barcode: RM0283094
_________________________________________________________________________

298.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Niobrara County: Powder River Basin: Indian Creek, ca 7 air mi NW of Whitman.  Elev. 4300 ft.
T34N R61W S18; also T34N R62W S13.  42.9234 N, 104.2415 W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!.  
On sandy soil of draws along creek; associated with gramma grass. Phenology: flowering. 

Keith H. Dueholm, 6994.  6/18/1979. 		RM 333306	Barcode: RM0283103
_________________________________________________________________________

299.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Natrona County: Powder River Basin: ca 24 air mi N of Natrona.  Elev. 5400 ft.
T39N R83W S5.  43.3758 N, 106.8325 W; uncertainty 1 mi..  
Gently rolling sagebrush plain on red sand (Chugwater Formation), small outcrops; plain. Phenology: flowering. 

Keith H. Dueholm, 7693.  7/3/1979. 		RM 333301	Barcode: RM0283028
_________________________________________________________________________

300.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: north side of Lake De Smet.  Elev. 4600 ft.
T52N R83W S1.  44.50401 N, 106.7836 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Rolling, hilly plains over scoria base, occasional outcrops, rocky pine slopes; plains. Phenology: flowering. 

Keith H. Dueholm, 8406.  7/21/1979. 		RM 333302	Barcode: RM0283027
_________________________________________________________________________

301.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: east side of Lake De Smet.  Elev. 4800 ft.
T52N R82W S16.  44.4767 N, 106.73361 W; uncertainty 1 mi..  
Sagebrush plain on clinker (scoria) base, occasional outcrops; plain. Phenology: flowering. 

Keith H. Dueholm, 8451.  7/21/1979. 		RM 333305	Barcode: RM0283050
_________________________________________________________________________

302.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 3 air mi W of Kaycee.  Elev. 4800 ft.
T43N R82W S9; also S10, S15; also S16.  43.7081 N, 106.7036 W; uncertainty 2 mi..  
Shale slopes with sandstone outcrops and drainages. Phenology: flowering. 

Ronald L. Hartman, 10088.  7/13/1979. 		RM 830236	Barcode: RM0283109
_________________________________________________________________________

303.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Big Horn Mountains: Red Grade Road, ca 5.2 air mi SW of Big Horn.  Elev. 6500 ft.
T54N R85W S27.  44.62444 N, 107.0844 W; uncertainty 1 mi..  
Slopes and ridge; Chugwater red beds and limestone (gypseous?) outcrops. Phenology: flowering. 

Ronald L. Hartman, 10666.  8/4/1979. 		RM 348670	Barcode: RM0283110
_________________________________________________________________________

304.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: East Creek, ca 4 air mi SSW of Mona.  Elev. 4000 ft.
T55N R63W S10.  44.77028 N, 104.40861 W; uncertainty 1 mi..  
Partly wooded drainage with oak, hawthorn, and ash. 

Ronald L. Hartman, 15992.  7/13/1983. 		RM 
_________________________________________________________________________

305.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ridge between Beaver Creek and the Belle Fourche River, ca 5 air mi NNW of Alva.  Elev. 3800 ft.
T55N R64W S13.  44.7553 N, 104.48833 W; uncertainty 1 mi..  
Sandy ridge with ponderosa pine woodlands and prairies; prairie. 

Ronald L. Hartman, 16465.  7/18/1983. 		RM 
_________________________________________________________________________

306.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance.  Elev. 5300 ft.
T50N R61W S19; also S20.  44.30472 N, 104.2225 W; uncertainty 2 mi..  
Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; sandy slope. 

Ronald L. Hartman, 18146.  7/13/1984. 		RM 
_________________________________________________________________________

307.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Northern Absarokas: Little Bald Ridge and Little Sunlight Creek, 2-3 air mi W of Sunlight Ranger Station.  Elev. 6900-7800 ft.
T55N R106W S14; also S15, S22, S23, S26, and S27.  44.7456 N, 109.5942 W; uncertainty 3 mi..  
Limestone talus slopes, ridges, and caprock, stream bottoms with willow and cottonwood, and disturbed roadsides; limestone ridge. 

Ronald L. Hartman, 21018.  7/18/1985. 		RM 537367	Barcode: RM0045021
_________________________________________________________________________

308.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Hot Springs County: Owl Creek/Bridger Mountains: Bridger Mountains: Red Canyon, Buffalo Creek Road, ca 14 air mi ENE of Thermopolis.  Elev. 5500-5600 ft.
T42N R92W S30.  43.5797 N, 107.9469 W.  
Red beds; grassy slopes and outcrops. 

Ronald L. Hartman, 29384.  6/28/1991. 		RM 
_________________________________________________________________________

309.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 11.5 air mi NNE of Weston.  Elev. 3900 ft.
T55N R70W S14.  44.75028 N, 105.2383 W; uncertainty 1 mi..  
Open slopes and drainage. Phenology: flowering & fruiting. 

Ronald L. Hartman, 6922.  6/22/1978. 		RM 324430	Barcode: RM0283121
     with Keith Dueholm and Mary Alice Sanguinetti
_________________________________________________________________________

310.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 18 air mi WNW of Rockypoint.  Elev. 3800 
T57N R72W S1; also T58N R71W S31, T58N R72W S36; also T57N R71W S6.  44.9603 N, 105.464 W; uncertainty 2 mi..  
Eroded hills with ponderosa pine. Phenology: flowering. 

Ronald L. Hartman, 7131.  6/23/1978. 		RM 324361	Barcode: RM0283015
     with Keith Dueholm and Mary Alice Sanguinetti
_________________________________________________________________________

311.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Eighty-five Divide, ca 11 air mi W of Rockypoint.  Elev. 3600 ft.
T57N R70W S18; also S19.  44.9314 N, 105.32083 W; uncertainty 2 mi..  
Hills with sandstone outcrops. Phenology: flowering. 

Ronald L. Hartman, 7203.  6/24/1978. 		RM 324359	Barcode: RM0283023
     with Keith Dueholm and Mary Alice Sanguinetti
_________________________________________________________________________

312.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 22 air mi NNE of Sussex.  Elev. 4400 ft.
T46N R77W S10.  43.9733 N, 106.0992 W; uncertainty 1 mi..  
Low hills and drainage. Phenology: flowering. 

Ronald L. Hartman, 7523.  6/27/1978. 		RM 324353	Barcode: RM0283040
     with Mary Alice Sanguinetti
_________________________________________________________________________

313.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Big Horn Mountains: Bighorn National Forest: Little Bighorn River Canyon, ca 16 air mi W of Parkman.  Elev. 5000-5400 ft.
T58N R89W S30.  44.9758 N, 107.6533 W; uncertainty 1 mi..  
Open south exposure. Phenology: flowering. 

Ronald L. Hartman, 9513.  6/26/1979. 		RM 348671	Barcode: RM0283076
     with Ann Odasz
_________________________________________________________________________

314.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along Wyo Hwy 270 between the cemetary and Quarry Road, ca 1.2 air mi ENE of Guernsey.  Elev. 4400 ft.
T27N R66W S36 NE1/4.  42.2703 N, 104.7239 W.  
Highway right-of-way and adjacent mixed grass plains. Phenology: flowering. 

B. E. Nelson, 27576.  7/26/1993. 		RM 598816	Barcode: RM0283056
_________________________________________________________________________

315.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Cow Creek and the north end of Cow Creek Buttes, ca 15 air mi ENE of Bill; ca 43 air mi NE of Douglas.  Elev. 4530-4540 ft.
T39N R68W S36 W1/2.  43.3126 N, 104.9708 W.  
Low benches and old stream bars. Phenology: flowering & fruiting. 

B. E. Nelson, 31880.  6/21/1994. 		RM 663595	Barcode: RM0282872
_________________________________________________________________________

316.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along a draw leading into Rawhide Creek ca 1 mi W of Middle Rawhide Butte, ca 11 air mi NW of Jay Em; ca 38.5 air mi NW of Torrington.  Elev. 5050-5160 ft.
T30N R64W S15 SE1/4.  42.5699 N, 104.5224 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Sandy flats with grasses, forbs, and patches of Artemisia cana. Phenology: flowering. 

B. E. Nelson, 32635.  7/11/1994. 		RM 663609	Barcode: RM0282873
_________________________________________________________________________

317.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: west end of Cedar Breaks and head of Dumbell Rock Draw, ca 14 air mi SW of Lance Creek; ca 22.5 air mi WNW of Lusk.  Elev. 5140-5340 ft.
T34N R67W S24 South1/4.  42.9042 N, 104.8474 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Bottom of a draw through badlands. Phenology: flowering. 

B. E. Nelson, 33038.  7/18/1994. 		RM 663608	Barcode: RM0282874
_________________________________________________________________________

318.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek ca 3/4 mi W of the mouth of Dater Creek and ca 4 air mi S of Castle Rocks, ca 11 air mi W of La Grange; ca 30 air mi SSW of Torrington.  Elev. 4800 ft.
T19N R63W S1 NW1/4.  41.6495 N, 104.3772 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Creek banks and adjacent woodlands and meadows. Phenology: flowering. 

B. E. Nelson, 33524.  8/4/1994. 		RM 663607	Barcode: RM0282875
     with Tim Chumley and Robbin Romberg
_________________________________________________________________________

319.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Bear Creek just W of the mouth of Dater Creek and ca 4 air mi S of Castle Rocks, ca 11 air mi W of La Grange; ca 30 air mi SSW of Torrington.  Elev. 4780 ft.
T20N R63W S36 SE1/4; also T19N R63W S1 NE1/4.  41.6519 N, 104.3686 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Brushy, with scattered trees in stream bottom adjacent to natural hay fields. Phenology: flowering & fruiting. 

B. E. Nelson, 33544.  8/4/1994. 		RM 663606	Barcode: RM0282854
     with Tim Chumley and Robbin Romberg
_________________________________________________________________________

320.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Richeau Creek between I-25 and Wyo Hwy 314, ca 3/4 air mi W to 1.5 air mi WSW of Slater; ca 14 air mi SSE of Wheatland.  Elev. 5020-5080 ft.
T22N R67W S24 NW1/4; also NE1/4 S23.  41.864 N, 104.8377 W.  
Sandy banks and flats. Phenology: flowering. 

B. E. Nelson, 33815.  8/11/1994. 		RM 663605	Barcode: RM0282855
     with Tim Chumley and Robbin Romberg
_________________________________________________________________________

321.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 3 air mi SSE of Powder River and ca 1 air mi NW of Middle Fork Casper Creek crossing.  Elev. 5890-5910 ft.
T35N R85W S24.  42.98972 N, 106.97722 W; uncertainty 1 mi..  
Sandy plains and white sandstone monuments. Phenology: flowering & fruiting. 

Ronald L. Hartman, 38360.  6/24/1993. 		RM 598815	Barcode: RM0283054
_________________________________________________________________________

322.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Warm Springs Hill, ca 7 air mi S of Douglas.  Elev. 4900-5100 ft.
T31N R71W S17 N1/2.  42.6569 N, 105.3914 W.  
Redbeds with strata of anhydrous gypsum; juniper woodland and grassland. Phenology: flowering & fruiting. 

Ronald L. Hartman, 39125.  6/29/1993. 		RM 599056	Barcode: RM0283051
_________________________________________________________________________

323.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 3 air mi E of Esterbrook.  Elev. 5300-5550 ft.
T28N R71W S12 E1/2.  42.4103 N, 105.3142 W; uncertainty 1 mi..  
Sandy slope and plains with grassland and occasional ponderosa pine. Phenology: flowering & fruiting. 

Ronald L. Hartman, 39180.  6/29/1993. 		RM 599055	Barcode: RM0283102
_________________________________________________________________________

324.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 5 air mi NNW of Glendo.  Elev. 4900-5000 ft.
T30N R68W S19 N1/2.  42.5567 N, 105.0564 W.  
Limestone outcrops and calcareous grasslands with juniper. Phenology: flowering & fruiting. 

Ronald L. Hartman, 39484.  7/1/1993. 		RM 599054	Barcode: RM0283101
_________________________________________________________________________

325.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: west end of Pine Ridge at intersection of I-25 and Wyo Hwy 319.  Elev. 5000-5300 ft.
T27N R68W S5.  42.3439 N, 105.0356 W.  
Sandstone outcrops and sandy slopes; ponderosa pine and grasslands. Phenology: flowering & fruiting. 

Ronald L. Hartman, 39549.  7/1/1993. 		RM 598814	Barcode: RM0283055
_________________________________________________________________________

326.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 9.5 air mi W of Wheatland.  Elev. 4800 ft.
T24N R69W S21 N1/2.  42.0403 N, 105.1256 W.  
Short-grass prairie and drainage. Phenology: flowering. 

Ronald L. Hartman, 39736.  7/1/1993. 		RM 598813	Barcode: RM0283053
_________________________________________________________________________

327.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34, ca 4 air mi E of Albany County.  Elev. 5260 ft.
T22N R70W S11 E1/2.  41.895 N, 105.2133 W; uncertainty 1 mi..  
Sandy plains with short-grass prairie. Phenology: flowering & fruiting. 

Ronald L. Hartman, 39743.  7/4/1993. 		RM 598812	Barcode: RM0283052
_________________________________________________________________________

328.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: in Road Canyon at the Vallorso site and Bear Canyon Mine site, ca 5.5 air mi SW of Ludlow; ca 10.8 air mi NW of Trinidad.  Elev. 6780-7180 ft.
T32S R65W S2 W1/2.  37.2874 N, 104.6388 W.  
Meadow in pinyon-juniper-oak woodland. Phenology: flowering & fruiting. 

B. E. Nelson, 43912.  6/25/1998. 		RM 830657
_________________________________________________________________________

329.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Hatchers Pass on County Road 47.7, ca 4 air mi N of Bon Carbo; ca 12.5 air mi NW of Trinidad.  Elev. 7360-7405 ft.
T32S R65W S8 SW1/4.  37.2728 N, 104.6932 W.  
Sandy soil on roadside and fencerow in pinyon-ponderosa-oak woodland. Phenology: flowering & fruiting. 

B. E. Nelson, 43990.  6/24/1998. 		RM 830656
_________________________________________________________________________

330.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau; in Sarcillo Canyon on County Road 41.7, ca 4.5 air mi N of Weston; ca 18 air mi W of Trinidad.  Elev. 7120-7160 ft.
T33S R66W S6 SE1/4; also NE1/4 S7.  37.2 N, 104.8202 W.  
Meadows with scattered ponderosa pine, pinyon, and oak. Phenology: flowering & fruiting. 

B. E. Nelson, 44015.  6/25/1998. 		RM 830655
_________________________________________________________________________

331.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Powell Arroyo, on County Road 69.8, NW of Trinidad.  Elev. 6100 ft.
T32S R64W S35 SE1/4.  37.2146 N, 104.5299 W.  
Riparian and pinyon-juniper. Phenology: flowering & fruiting. 

Brian Elliott, 1090.  6/4/1998. 		RM 827809
     with Kenneth Elliott
_________________________________________________________________________

332.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Pueblo Reservoir State Park: ca 3.5 road mi W of the west entrance on Colo Hwy 96.  Elev. 5200 ft.
T20S R67W S33 SE1/4; also SW1/4 S34.  38.2677 N, 104.8929 W.  
Small grade; prairie and pinyon-juniper. Phenology: flowering & fruiting. 

Brian Elliott, 1311.  6/10/1998. 		RM 828982
_________________________________________________________________________

333.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Powder River Basin: ridge between Stockade Beaver and Whoopup Creeks, ca 11.5 air mi SSE of Newcastle.  Elev. 4200 ft.
T43N R61W S13.  43.7053 N, 104.1308 W; uncertainty 1 mi..  
Sandstone ridge with scattered ponderosa ponderosa pine and juniper. Phenology: flowering. 

B. E. Nelson, 8737.  7/6/1982. 		RM 382071	Barcode: RM0283090
_________________________________________________________________________

334.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: Elk Mountains: at the South Dakota state line, ca 14 air mi SE of Newcastle.  Elev. 4900 ft.
T43N R60W S22.  43.6911 N, 104.0503 W; uncertainty 1 mi..  
Meadows at the base of the ridge. Phenology: flowering & fruiting. 

B. E. Nelson, 8836.  7/7/1982. 		RM 371892	Barcode: RM0283098
_________________________________________________________________________

335.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Oak Creek drainage and ridge between Oak and Alum creeks, ca 6.5 air mi NNW of Aladdin; ca 23 air mi NNE of Sundance.  Elev. 3800 ft.
T55N R62W S36.  44.7158 N, 104.245 W; uncertainty 1 mi..  
Dry, grassy ridgetop. Phenology: flowering. 

B. E. Nelson, 8868.  7/9/1982. 		RM 371891	Barcode: RM0283120
_________________________________________________________________________

336.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Little Missouri River Breaks: ca 14 air mi N of Hulett; ca 33.5 air mi NNW of Sundance.  Elev. 4000 ft.
T56N R64W S3.  44.8731 N, 104.5289 W; uncertainty 1 mi..  
Upland grassland. Phenology: flowering. 

B. E. Nelson, 9005.  7/12/1982. 		RM 371890	Barcode: RM0283017
_________________________________________________________________________

337.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Wyo Hwy 585, ca 10 air mi SSE of Sundance.  Elev. 5080 ft.
T49N R62W S4.  44.26083 N, 104.30389 W; uncertainty 1 mi..  
Roadside on rocky (Minnekahta limestone) soil. Phenology: fruiting. 

Hollis Marriott, 1494.  7/19/1982. 		RM 371866	Barcode: RM0283095
     with Dennis Horning
_________________________________________________________________________

338.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Kerr Gulch, ca 1 mi up road from U.S. Hwy 50, W of Cotopaxi.  Elev. 6800 ft.
T48N R11E S19 NW1/4.  38.3898 N, 105.7958 W.  
By mine site; open pinyon-juniper. Phenology: flowering & fruiting. 

Brian Elliott, 1705.  6/13/1998. 		RM 827807
_________________________________________________________________________

339.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Burnt Mill Road, ca 1.5 mi E of junction with County Road 221; ca 5.4 road mi E of Crow Cutoff/3R Road.  Elev. 5300 ft.
T23S R66W S9 N1/2.  38.0643 N, 104.7795 W.  
Juniper-pinyon. Phenology: flowering & fruiting. 

Brian Elliott, 1803.  6/13/1998. 		RM 828981
_________________________________________________________________________

340.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: on County Road 43.7, ca 2.5 mi SW of Aguilar.  Elev. 6800 ft.
T31S R65W S7 E1/4; also W1/4 S8.  37.3602 N, 104.7113 W.  
Pinyon-juniper. Phenology: flowering & fruiting. 

Brian Elliott, 1839.  6/16/1998. 		RM 827806
_________________________________________________________________________

341.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: between Goldie Road and Elkhorn Creek, ca 6 air mi WNW of Seely.  Elev. 3800 ft.
T56N R66W S23 NE1/4 of; and NW1/4 of S24.  44.82556 N, 104.74583 W; uncertainty 1 mi..  
Sagebrush-grassland. Phenology: flowering. 

Hollis Marriott, 3961.  7/5/1983. 		RM 371858	Barcode: RM0283107
_________________________________________________________________________

342.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Government Canyon, (T. Moore Ranch); ca 6.2 air mi NNE of Seely.  Elev. 3800 ft.
T57N R64W S30 South 1/2; N1/2 S31.  44.9019 N, 104.5881 W; uncertainty 1 mi..  
Rocky slopes and ridgetops with scattered pines and junipers. ( ) From field notes. Phenology: flowering & fruiting. 

Hollis Marriott, 4063.  7/5/1983. 		RM 371865	Barcode: RM0283071
_________________________________________________________________________

343.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: North Redwater Creek, ca 6.5 air mi WNW of Beulah.  Elev. 3900 ft.
T53N R61W S17 W1/2.  44.5822 N, 104.20222 W; uncertainty 1 mi..  
Roadcut in grassland. Phenology: flowering & fruiting. 

Hollis Marriott, 4415.  7/12/1983. 		RM 371864	Barcode: RM0283072
_________________________________________________________________________

344.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.  Elev. 4400-4600 ft.
T52N R65W S23 SE1/4; and SW1/4 S24.  44.47639 N, 104.6328 W; uncertainty 1 mi..  
Ponderosa pine ridge with grassland understory. ( ) From field notes. Phenology: flowering & fruiting. 

Hollis Marriott, 4617.  7/14/1983. 		RM 371863	Barcode: RM0283073
_________________________________________________________________________

345.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: U.S. Hwy 14 near Thorn Divide, ca 1 air mi S of Carlile.  Elev. 4300 ft.
T52N R66W S20 SE1/4; also NE1/4 S29.  44.47639 N, 104.8117 W; uncertainty 1 mi..  
Deciduous thickets in north-trending draw. Phenology: fruiting. 

Hollis Marriott, 4752.  7/21/1983. 		RM 371862	Barcode: RM0283074
_________________________________________________________________________

346.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Bear Lodge Mountains: Taylor Divide, ca 8.5 air mi S of Alva.  Elev. 5300 ft.
T53N R63W S17; also S20.  44.584 N, 104.4443 W.  
Grassland. Phenology: flowering. 

Hollis Marriott, 5041.  7/26/1983. 		RM 371861	Barcode: RM0283111
_________________________________________________________________________

347.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Long Canyon on south side of Trinidad Reservoir.  Elev. 6300 ft.
T34S R64W S6 NW1/4.  37.1126 N, 104.6025 W.  
Riparian; pinyon-juniper. Phenology: flowering & fruiting. 

Brian Elliott, 1959.  6/16/1998. 		RM 827805
_________________________________________________________________________

348.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Goldie Divide near jct of Goldie and New Haven roads, ca 5 air mi NW of Hulett.  Elev. 4500 ft.
T55N R65W S29.  44.7225 N, 104.69028 W; uncertainty 1 mi..  
Grassland. Phenology: flowering. 

Hollis Marriott, 5332.  8/2/1983. 		RM 371860	Barcode: RM0283077
_________________________________________________________________________

349.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills, Coal Divide just N of I-90 (near parking area), ca 9 air mi SW of Sundance.  Elev. 4800 ft.
T50N R64W S14 NW1/4.  44.3197 N, 104.5081 W.  
Ponderosa pine-bur oak forest, draw with small spring. Phenology: fruiting. 

Hollis Marriott, 5494.  8/4/1983. 		RM 371859	Barcode: RM0283106
_________________________________________________________________________

350.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on County Road 113.0, ca 1/4 mi S of junction with County Road 8.8, W of Trinchera.  Elev. 6100 ft.
T34S R60W S34 NW1/4.  37.0398 N, 104.1127 W.  
East side of road; open prairie with Quercus. Phenology: flowering & fruiting. 

Brian Elliott, 2055.  6/16/1998. 		RM 827804
_________________________________________________________________________

351.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: west side of ridge S of Elk Mountain (USFS Road 818) near Mix Spring, ca 13.5 air mi SE of Newcastle.  Elev. 4800 ft.
T43N R60W S21; also S28.  43.6911 N, 104.0705 W; uncertainty 2 mi..  
Southeast-facing slope with scattered pines and junipers. Phenology: flowering. 

Hollis Marriott, 7182.  6/26/1984. 		RM 371857	Barcode: RM0283025
_________________________________________________________________________

352.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: northeast fork of headwaters of Left Creek, ca 4.5 air mi SW of the Missouri Buttes.  Elev. 4300 ft.
T53N R66W S18; also R67W and S13.  44.57889 N, 104.83167 W; uncertainty 2 mi..  
Big and silver sagebrush (Artemisia cana and A. tridentata)-grassland.. ( ) From field notes. Phenology: flowering. 

Hollis Marriott, 7671.  7/6/1984. 		RM 371877	Barcode: RM0283096
_________________________________________________________________________

353.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: Summit Ridge near lookout (W of Boles Canyon), ca 7.5 air mi E of Newcastle.  Elev. 6000 ft.
T45N R60W S27; also S28.  43.85028 N, 104.0453 W; uncertainty 2 mi..  
Ponderosa pine forest on ridgetop, grassy opening on rocky soil. Phenology: flowering & fruiting. 

Hollis Marriott, 8046.  7/14/1984. 		RM 371856	Barcode: RM0283060
_________________________________________________________________________

354.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: West Plum Creek ca 1 mi N of confluence with East Plum Creek, ca 8 air mi NNW of Newcastle.  Elev. 4700 ft.
T46N R62W S14.  43.9661 N, 104.2678 W; uncertainty 1 mi..  
Grassland in canyon botton, on sandy soil. Phenology: fruiting. 

Hollis Marriott, 8403.  8/2/1984. 		RM 
_________________________________________________________________________

355.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: Bear Canyon between Parmlee Canyon and state line, ca 5 air mi SE of Four Corners.  Elev. 5600 ft.
T47N R60W S27; also S28.  44.0247 N, 104.0467 W; uncertainty 2 mi..  
South-facing slope with ponderosa pine, small grassy opening. Phenology: fruiting. 

Hollis Marriott, 8621.  8/4/1984. 		RM 371853	Barcode: RM0283091
     with Dennis Horning
_________________________________________________________________________

356.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: Canyon Springs Prairie, headwaters of Dry Draw (off Soldier Creek), ca 3.5 air mi NW of Four Corners.  Elev. 5850 ft.
T48N R61W S22.  44.1303 N, 104.16306 W; uncertainty 1 mi..  
Sparse grassland on rocky soil with slabby outcrops (Minnekahta limestone). Phenology: flowering. 

Hollis Marriott, 8936.  8/10/1984. 		RM 371854	Barcode: RM0283058
_________________________________________________________________________

357.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Powder River Basin: ca 11 air mi SSE of Newcastle.  Elev. 4000 ft.
T43N R61W S24; also S25.  43.6911 N, 104.1308 W; uncertainty 2 mi..  
Sagebrush plain, clay slopes, draws; plains, near road. Phenology: fruiting. 

Keith H. Dueholm, 7081.  6/19/1979. 		RM 333307	Barcode: RM0283092
_________________________________________________________________________

358.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ca 7 air mi N of Hulett.  Elev. 4100-4200 
T55N R65W S1.  44.7844 N, 104.6103 W; uncertainty 1 mi..  
Oak woodlands, sandstone rimrock and sandy lower slopes, prairies, and shaded ravines; prairie. Phenology: flowering & fruiting. 

Ronald L. Hartman, 15932.  7/12/1983. 		RM 371889	Barcode: RM0283018
_________________________________________________________________________

359.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: East Creek, ca 4 air mi SSW of Mona.  Elev. 4000 ft.
T55N R63W S10.  44.77028 N, 104.40861 W; uncertainty 1 mi..  
Partly wooded drainage with oak, hawthorn, and ash. Phenology: flowering & fruiting. 

Ronald L. Hartman, 15992.  7/13/1983. 		RM 371888	Barcode: RM0283019
_________________________________________________________________________

360.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ca 2 air mi NE of Aladdin.  Elev. 3600 ft.
T54N R61W S22.  44.6567 N, 104.1592 W; uncertainty 1 mi..  
Prairie, sandstone outcrops, and dry drainage; stream banks. Phenology: flowering. 

Ronald L. Hartman, 16203.  7/15/1983. 		RM 371885	Barcode: RM0283048
_________________________________________________________________________

361.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ca 2 air mi NE of Aladdin.  Elev. 3600 ft.
T54N R61W S22.  44.6567 N, 104.1592 W; uncertainty 1 mi..  
Prairie, sandstone outcrops, and dry drainage; prairie. Phenology: flowering. 

Ronald L. Hartman, 16255.  7/15/1983. 		RM 371887	Barcode: RM0283039
_________________________________________________________________________

362.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ca 3 air mi NNE of Beulah.  Elev. 3500 ft.
T53N R60W S16; also S17.  44.58306 N, 104.0578 W; uncertainty 2 mi..  
Prairie and breaks with dry stream; prairie. Phenology: flowering. 

Ronald L. Hartman, 16368.  7/16/1983. 		RM 371886	Barcode: RM0283045
_________________________________________________________________________

363.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ridge between Beaver Creek and the Belle Fourche River, ca 5 air mi NNW of Alva.  Elev. 3800 ft.
T55N R64W S13.  44.7553 N, 104.48833 W; uncertainty 1 mi..  
Sandy ridge with ponderosa pine woodlands and prairie; prairie. Phenology: flowering & fruiting. 

Ronald L. Hartman, 16465.  7/18/1983. 		RM 371884	Barcode: RM0283097
_________________________________________________________________________

364.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance.  Elev. 5300 ft.
T50N R61W S19; also S20.  44.30472 N, 104.2225 W; uncertainty 2 mi..  
Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; sandy slope. Phenology: flowering. 

Ronald L. Hartman, 18146.  7/13/1984. 		RM 371883	Barcode: RM0283026
_________________________________________________________________________

365.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Tomcat Creek Oil Field, ca 19 air mi SW of Sundance.  Elev. 4300 ft.
T50N R65W S31.  44.2769 N, 104.70806 W; uncertainty 1 mi..  
Pinus ponderosa woodland on rolling hills of shale with wet drainages, shale badlands, Sarcobatus vermiculatus flats, and sandy sagebrush Artemisia slopes; woodland. Phenology: flowering & fruiting. 

Ronald L. Hartman, 18170.  7/15/1984. 		RM 371882	Barcode: RM0283044
_________________________________________________________________________

366.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Powder River Basin: just E of U.S. Hwy 14 on Old Sundance Road, 4 air mi NE of Moorcroft.  Elev. 4200 ft.
T50N R67W S16.  44.3156 N, 104.91111 W; uncertainty 1 mi..  
Rolling sagebrush hills and moist drainages; sagebrush slopes. Phenology: fruiting. 

Ronald L. Hartman, 18245.  7/15/1984. 		RM 371881	Barcode: RM0283082
_________________________________________________________________________

367.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ca 4 air mi NW of summit of Inyan Kara Mountain.  Elev. 4800 ft.
T49N R63W S16.  44.23111 N, 104.42667 W; uncertainty 1 mi..  
Sagebrush slopes on red beds with moist drainage. Phenology: flowering. 

Ronald L. Hartman, 18294.  7/15/1984. 		RM 371880	Barcode: RM0283083
_________________________________________________________________________

368.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: W of I-25 at Exit 2 (Wooten exit).  Elev. 7080 ft.
37.6444 N, 104.5014 W.  
Dirt road west of freeway at small bridge; riparian with Quercus gambellii. Phenology: flowering & fruiting. 

Brian Elliott, 2623.  6/24/1998. 		RM 827803
_________________________________________________________________________

369.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: ca 7.5 air mi SE of Sundance.  Elev. 4900 ft.
T50N R62W S11 NE1/4.  44.3344 N, 104.2633 W; uncertainty 1 mi..  
Pinus ponderosa covered ridge and open sandy slopes. Phenology: flowering. 

Ronald L. Hartman, 18380.  7/15/1984. 		RM 371879	Barcode: RM0283024
_________________________________________________________________________

370.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: lower slopes of Hooker Peak and plains to the NW, 7-8 air mi SSE of Sundance.  Elev. 5100 ft.
T50N R62W S16; also S22.  44.3197 N, 104.3044 W; uncertainty 2 mi..  
Plains, Pinus ponderosa wooded slopes, moist open drainages and stock pond; meadow. Phenology: flowering & fruiting. 

Ronald L. Hartman, 18493.  7/17/1984. 		RM 371878	Barcode: RM0283084
_________________________________________________________________________

371.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Devils Tower National Monument: West Road; ca 105 yds E of boundary.  Elev. 4250 ft.
T53N R66W S12.  
On disturbed, well-drained soil with Andropogon gerardii. Common; plant ca 10" tall, branched from base, lavender heads. Phenology: fruiting. 

Hollis Marriott, 812.  7/16/1981. 		RM 336122	Barcode: RM0283112
_________________________________________________________________________

372.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Hwy 16; ca 1 mi NW of Wyoming border.  Elev. 4400 ft.
Along roadside at bottom of ditch. Phenology: flowering & fruiting. 

Robert C. Gardner, 175.  8/5/1971. 		RM 293114	Barcode: RM0283043
_________________________________________________________________________

373.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: at Cokedale Road W of Trinidad on Colo Hwy 12.  Elev. 6400 ft.
T33S R65W S25 NW1/4.  37.1418 N, 104.6206 W.  
Top of hill to east; pinyon-juniper. Phenology: flowering & fruiting. 

Brian Elliott, 2744.  6/27/1998. 		RM 827802
_________________________________________________________________________

374.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Sheridan Training Area: site ca 1.0 km W of Peak 4244 (338560, 4969020), 2.0 km NE of Peak 4290 (336500, 4967320).  337520E, 4969080N.  Elev. 1300 m.
zone 13, 337520E, 4969080N; GPS Reading.  
East/west running ridge with slopes (0-30 degrees) on north and south sides in Artemisia grassland in sandy loam to loam, soil series Renohill-Worfka association, with Artemisia tridentata, A. cana, Stipa comata, Aristida purpurea. Scattered; erect, perennial herb; 0.5 m tall; rays lilac. Phenology: flowering & fruiting. 

Patricia P. Douglas, 105.  7/4/1997. 		RM 793830	Barcode: RM0283181
     with N. Hastings
_________________________________________________________________________

375.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sweetwater County: NE end of Cedar Mountain; ca 34.5 air mi SW of Evanston; 11 air mi N of McKinnon.  Elev. 7800 ft.
T13N R112W.  
Shallow loam in aspen stand with Thlaspi arvense, Galium boreale, Descurainia richardonii and Elymus cinereus. Phenology: flowering. 

Ann Aldrich, 340.  7/5/1979. 		RM 330413	Barcode: RM0283049
_________________________________________________________________________

376.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie City Park.
Phenology: flowering & fruiting. 

Aven Nelson, 1156.  10/2/1894. 		RM 3701	Barcode: RM0283061
_________________________________________________________________________

377.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming: Pine Bluffs.
Phenology: flowering & fruiting. 

Aven Nelson, 3506.  7/5/1897. 		RM 10594	Barcode: RM0283020
_________________________________________________________________________

378.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Dirt road leading N along east side of Sheep Mountain, ca 3 mi NNE of Woods Landing.  Elev. 7500 ft.
T14N R77W S26.  
Roadside in gravelly soil. Phenology: flowering & fruiting. 

Neil Snow, 4576.  7/20/1989. 		RM 566311	Barcode: RM0282867
_________________________________________________________________________

379.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Albany County: Hwy 34: 6 mi E of Mortons Pass.  Elev. 7000 ft.
Loose gravel along roadside. Phenology: flowering & fruiting. 

Robert C. Gardner, 118.  7/2/1977. 		RM 293115	Barcode: RM0283021
_________________________________________________________________________

380.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Lake Guernsey State Park: Hwy 317.  Elev. 4400 ft.
Along roadside. Phenology: vegetative only. 

Robert C. Gardner, 120.  7/2/1971. 		RM 293088	Barcode: RM0282860
_________________________________________________________________________

381.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Lake Guernsey State Park: Hwy 317.  Elev. 4400 ft.
Along roadside. Phenology: vegetative only. 

Robert C. Gardner, 120.  7/2/1971. 		RM 293089	Barcode: RM0282861
_________________________________________________________________________

382.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Lake Guernsey State Park: Hwy 317.  Elev. 4400 ft.
Along roadside. Phenology: flowering & fruiting. 

Robert C. Gardner, 120.  7/2/1971. 		RM 293090	Barcode: RM0282859
_________________________________________________________________________

383.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Goshen County: U.S. Hwy 85, ca 15 mi S of Torrington,
41.8663 N, 104.2664 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Upper flat of road bank. Phenology: flowering & fruiting. 

Robert C. Gardner, 178.  8/5/1971. 		RM 293118	Barcode: RM0283035
_________________________________________________________________________

384.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Goshen County: U.S. Hwy 85, ca 15 mi S of Torrington,
41.8663 N, 104.2664 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Upper flat of road bank. 2n=26 Phenology: vegetative only. 

Robert C. Gardner, 178.  8/5/1971. 		RM 293119	Barcode: RM0283034
_________________________________________________________________________

385.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Converse County: Northern Laramie Range: ridge on west side of La Prele Creek, ca 1 1/4 mi W of Ayres Natural Bridge Park.  Elev. 5500 ft.
T32N R73W S20.  
Sandy draw at base of limestone outcrop. Phenology: flowering & fruiting. 

Walter Fertig, 14036.  7/9/1993. 		RM 603102	Barcode: RM0320010
_________________________________________________________________________

386.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Laramie County: Campus of Laramie County Community College, SE of Cheyenne.  Elev. 6100 ft.
T13N R66W S9 SW1/4.  41.1064 N, 104.7831 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Short grass prairie. Phenology: flowering & fruiting. 

William C. Edwards, 127a.  7/20/1983. 		RM 364955	Barcode: RM0282866
_________________________________________________________________________

387.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carbon County: Pryor Mountains: Custer National Forest: Sage Creek Campground and vicinity on Sage Creek, ca 19 air mi ESE of Bridger.  Elev. 5520-5680 ft.
T7S R26E S20 NW1/4.  45.2117 N, 108.5521 W; uncertainty 0.5 mi., GPS reading.  
Southerly-facing slope with Elymus spicatus and occasional limber pine and juniper on limestone. Phenology: flowering. 

B. E. Nelson, 74998.  7/14/2008. 		USFS 882803	Barcode: USFS0049009
_________________________________________________________________________

388.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Saguache County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: San Luis Valley: ca 0.5 mi from County Road LL-56 up BLM road to Kelly Creek; W of Villa Grove; S of Poncha Springs. Center of section 9.  Elev. 8200 ft.
T46N R9E S9.  38.2516 N, 105.9813 W.  
Prairie. Phenology: flowering & fruiting. 

Brian Elliott, 4250.  7/27/1998. 		RM 827801
_________________________________________________________________________

389.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: County Road C above Carrizo Creek, ca 2 air mi W of Little Black Mesa and ca 1 air mi N of Oklahoma, ca 33.5 air mi SW of Springfield.  Elev. 4420-4470 ft.
T35S R50W S12 NE1/4.  37.0123 N, 102.9786 W; GPS Reading.  
Sandy-silt grassland flats. Phenology: flowering & fruiting. 

B. E. Nelson, 71878.  6/14/2007. 		RM 
     with Bernadette Kuhn
_________________________________________________________________________

390.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: off County Road 8 at the head of Pat Canyon, ca 8 air mi N of Oklahoma and ca 2.5 air mi S of the abandoned Kirkwell Post Office, ca 27 air mi SW of Springfield.  Elev. 4860 ft.
T34S R49W S5 NE1/4.  37.1131 N, 102.9481 W; GPS Reading.  
Sandy cobblestone draws, abandoned gravel pit, and flats above. Phenology: flowering & fruiting. 

B. E. Nelson, 71928.  6/14/2007. 		RM 
     with Bernadette Kuhn
_________________________________________________________________________

391.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: along South Fork Sand Arroyo E of County Road 8, ca 11 air mi SSW of Pritchett; ca 21.5 air mi SW of Springfield.  Elev. 4880 ft.
T32S R49W S28 SW1/4.  37.2248 N, 102.94 W; GPS Reading.  
Flats and slopes in rangeland. Phenology: flowering & fruiting. 

B. E. Nelson, 71962.  6/14/2007. 		RM 
     with Bernadette Kuhn
_________________________________________________________________________

392.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: at the intersection of County roads 13 and U, ca 8.5-9 air mi S of Pritchett; ca 16.5 air mi SW of Springfield.  Elev. 4780 ft.
T32S R48W S20 NW1/4.  37.2495 N, 102.8494 W; GPS Reading.  
Sandsage rangeland with large areas of Bromus tectorum and areas of barren sand. Phenology: flowering & fruiting. 

B. E. Nelson, 72004.  6/14/2007. 		RM 
     with Bernadette Kuhn
_________________________________________________________________________

393.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: branch of West Ute Canyon, ca 1 1/4 mi E of County Road 24, ca 5.5 air mi SSW of Campo.  Elev. 4240-4310 ft.
T35S R46W S5 NW1/4.  37.0318 N, 102.6284 W; GPS Reading.  
Sandy to sandy silt rangeland. Phenology: flowering & fruiting. 

B. E. Nelson, 72403.  6/21/2007. 		RM 
     with Bernadette Kuhn
_________________________________________________________________________

394.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 23 air mi SW of Springfield.  Elev. 4765 ft.
T35S R48W S20; also S29.  37.1487 N, 102.8353 W; GPS Reading.  
Shortgrass prairie with Yucca sp., Opuntia sp., and Buchloë dactyloides; grazed. Phenology: flowering & fruiting. 

Bernadette Kuhn, 649.  5/30/2007. 		RM 
     with Laura E. Lukus
_________________________________________________________________________

395.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Prowers County: Comanche National Grassland: Two Buttes.  Elev. 4369 ft.
T27S R46W S35.  37.6569 N, 102.5471 W; GPS Reading.  
Steep slopes with Opuntia and Bouteloua. Phenology: flowering & fruiting. 

Bernadette Kuhn, 716.  6/6/2007. 		RM 
_________________________________________________________________________

396.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: Picture Canyon, ca 29 air mi SSW of Springfield.  Elev. 4225 ft.
T35S R47W S7.  37.0073 N, 102.7486 W; GPS Reading.  
Along Salix-dominated wet seep. Shortgrass prairie with Yucca sp., Opuntia sp., and Buchloë dactyloides; grazed. Phenology: flowering & fruiting. 

Bernadette Kuhn, 842.  6/7/2007. 		RM 
_________________________________________________________________________

397.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 29 air mi SW of La Junta.  Elev. 4945 ft.
T26S R59W S26 South1/2.  37.7489 N, 103.9826 W; GPS Reading.  
On rocky hills with limestone outcrops. Phenology: flowering & fruiting. 

Bernadette Kuhn, 1313.  6/19/2007. 		RM 
     with B. E. Nelson
_________________________________________________________________________

398.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 32.5 air mi SW of La Junta.  Elev. 5153 ft.
T27S R59W S5 SW1/4.  37.7204 N, 104.0332 W; GPS Reading.  
Sandy prairie dominated by Yucca glauca and Plantago patagonica. Phenology: flowering & fruiting. 

Bernadette Kuhn, 1345.  6/19/2007. 		RM 
     with B. E. Nelson
_________________________________________________________________________

399.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: below North Lake Dam, S of Cuchara Pass on Colo Hwy 12.  Elev. 8500 ft.
T32S R68W S19 SE1/4.  37.2437 N, 105.0378 W.  
Riparian and Quercus gambellii. Phenology: flowering & fruiting. 

Brian Elliott, 4473.  7/29/1998. 		RM 830665
_________________________________________________________________________

400.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: North Ute Canyon, 27 air mi S of Springfield.  Elev. 4139 ft.
T35S R46W S3 SW1/4; also NE1/4 S10.  37.0182 N, 102.5902 W; GPS Reading.  
Rocky upland area with Yucca and Opuntia. Phenology: flowering & fruiting. 

Bernadette Kuhn, 1432.  6/21/2007. 		RM 
     with B. E. Nelson
_________________________________________________________________________

401.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: below North Lake Dam, S of Cuchara Pass on Colo Hwy 12.  Elev. 8500 ft.
T32S R68W S19 SE1/4.  37.2437 N, 105.0378 W.  
Riparian and Quercus gambellii. Phenology: flowering & fruiting. 

Brian Elliott, 4474.  7/29/1998. 		RM 830664
_________________________________________________________________________

402.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: Holt Canyon, 27.5 air mi SSW of Springfield.  Elev. 4253 ft.
T35S R48W S2.  37.0324 N, 102.7849 W; GPS Reading.  
Spring fed pond with Juncus sp., Sagittaria sp. and Salix exigua. Phenology: flowering & fruiting. 

Bernadette Kuhn, 1649.  6/24/2007. 		RM 
     with B. E. Nelson
_________________________________________________________________________

403.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 13 air mi SW of Pritchett.  Elev. 3200 ft.
T32S R50W S8.  37.2718 N, 103.059 W; GPS Reading.  
Heavily grazed, shortgrass prairie with lone elm. Phenology: flowering & fruiting. 

Bernadette Kuhn, 2161.  7/5/2007. 		RM 
     with Joe Rankin.
_________________________________________________________________________

404.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 16 mi S of La Junta, ca 5 mi W of Vogel Canyon on bluffs above the junction of Forest Road 350 and Rourke Road.  Elev. 4800 ft.
T26S R55W S19 SW1/4; also NE1/4 S30.  37.7579 N, 103.6195 W; GPS Reading.  
On an east-west ridge with limestone soil; with scattered juniper and Yucca glauca in Oryzopsis-Hilaria grassland. Phenology: flowering & fruiting. 

Brian Elliott, 13071.  5/15/2004. 		RM 
_________________________________________________________________________

405.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: Vogal Canyon, from trail head to south end at fence line.  Elev. 4290-4390 ft.
T26S R54W S19; also W1/4 S30 and T26S R55W E1/4 S24.  37.7702 N, 103.5131 W; GPS Reading.  
Pinyon-juniper canyonland, sandstone; with willow and cottonwood thickets near fence. Phenology: flowering & fruiting. 

Ronald L. Hartman, 85081.  5/28/2007. 		RM 
     with Bernadette Kuhn, Laura E. Lukas
_________________________________________________________________________

406.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: Shale Hills, ca 9 air mi SE of Timpas.  Elev. 4761 ft.
T26S R56W S25; also T26S R55W S30.  37.7576 N, 103.6208 W; GPS Reading.  
Shale bluffs, top to bottom. Phenology: flowering & fruiting. 

Ronald L. Hartman, 85168.  5/28/2007. 		RM 
     with Bernadette Kuhn, Laura E. Lukas
_________________________________________________________________________

407.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: ca 20 air mi SSW of La Junta.  Elev. 4838 ft.
T27S R56W S4.  37.7266 N, 103.6889 W; NAD 83, , GPS Reading.  
Shale and limestone outcrops, dominated by Aristida purpurea and Yucca glauca. Phenology: flowering & fruiting. 

Bernadette Kuhn, 4324.  5/24/2008. 		RM 
     with Joe Rankin
_________________________________________________________________________

408.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: along County Road 35, ca 8.5 air mi SE of La Junta.  Elev. 4469 ft.
T25S R54W S3.  37.9101 N, 103.4363 W; NAD 83, , GPS Reading.  
Rocky shale hills with sparse vegetation and scattered Juniperus monosperma. Phenology: fruiting. 

Bernadette Kuhn, 4529.  5/27/2008. 		RM 
_________________________________________________________________________

409.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland and Vicinity: Carrica Ranch off Colo Hwy 109, ca 11 air mi S of La Junta.  Elev. 4515 ft.
T25S R54W S31.  37.8243 N, 103.5058 W; NAD 83, , GPS Reading.  
Roadside and rocky hill. Phenology: flowering & fruiting. 

Bernadette Kuhn, 4784.  6/6/2008. 		RM 
_________________________________________________________________________

410.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Comanche National Grassland and Vicinity: on west side of Colo Hwy 109 near Radio Tower, ca 34 air mi S of La Junta.  Elev. 5185 ft.
T29S R53W S14.  37.5206 N, 103.3296 W; NAD 83, , GPS Reading.  
Along road bank; rocky upland dominated by Aristida, Elymus, and Schedonnardus. Phenology: flowering & fruiting. 

Bernadette Kuhn, 4968.  6/8/2008. 		RM 
     with Catherine Kuhn, Mike Mason
_________________________________________________________________________

411.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: Valley View Allotment, ca 7.5 air mi SSE of La Junta.  Elev. 4400 ft.
T25S R54W S7.  37.8848 N, 103.4935 W; NAD 83, , GPS Reading.  
Shortgrass prairie dominated by Yucca, Opuntia, and Bothriochloa. Phenology: flowering & fruiting. 

Bernadette Kuhn, 5017.  6/9/2008. 		RM 
_________________________________________________________________________

412.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland and Vicinity: ca 1/4 mi S of Higbee Valley School at north end of bridge along dry creek bed, ca 15.7 air mi SSE of La Junta.  Elev. 4298 ft.
T26S R54W S21.  37.77468 N, 103.46173 W; NAD 83, , Nat. Geog. TOPO!.  
Dry creek dominated by Tamarix and Iva axillaris. Phenology: flowering & fruiting. 

Bernadette Kuhn, 5044.  6/9/2008. 		RM 
_________________________________________________________________________

413.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: along David Canyon Road, ca 14 air mi S of La Junta.  Elev. 4510 ft.
T26S R55W S14.  37.7854 N, 103.5466 W; NAD 83, , GPS Reading.  
Shale hills, limestone outcrops with Mentzelia and scattered Juniperus. Phenology: flowering & fruiting. 

Bernadette Kuhn, 5075.  6/9/2008. 		RM 
_________________________________________________________________________

414.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland and Vicinity: off U.S. Hwy 350 on County Road 802, ca 3.5 air mi SW of Timpas.  Elev. 4581 ft.
T26S R57W S17.  37.7792 N, 103.8157 W; NAD 83, , GPS Reading.  
Rocky prairie with scattered Juniperus monosperma. Phenology: fruiting. 

Bernadette Kuhn, 5178.  6/19/2008. 		RM 
_________________________________________________________________________

415.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Comanche National Grassland and Vicinity: Goat Ranch Spring in Goat Canyon, ca 27 air mi S of La Junta.  Elev. 4693 ft.
T28S R55W S23.  37.5989 N, 103.5494 W; NAD 83, , GPS Reading.  
Salix dominated spring, grazed. Phenology: flowering & fruiting. 

Bernadette Kuhn, 5456.  6/21/2008. 		RM 
_________________________________________________________________________

416.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Comanche National Grassland: and Vicinity: on south side of County Road 36, ca 3 air mi W of Kim.  Elev. 5471 ft.
T32S R54W S24.  37.2497 N, 103.411 W; NAD 83, , GPS Reading.  
At grove of Eleagnus and Ulmus with overflowing well. Phenology: flowering & fruiting. 

Bernadette Kuhn, 5616.  6/24/2008. 		RM 
     with Cali Hemenway
_________________________________________________________________________

417.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Comanche National Grassland and Vicinity: Jerry Reed Ranch, along Tobe Creek at north base of Mesa de Maya, ca 4 air mi S of Tobe; ca 15 air mi WSW of Kim.  Elev. 5901 ft.
T33S R55W S17.  37.1768 N, 103.5991 W; NAD 83, , GPS Reading.  
Along creek with Salix trees and Populus; Symphoricarpos thickets along bank. Phenology: flowering & fruiting. 

Bernadette Kuhn, 5708.  6/24/2008. 		RM 
     with Cali Hemenway
_________________________________________________________________________

418.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Kansas, Morton County: Cimarron National Grassland: at gas compressor station, ca 2 air mi S of Wilburton.  Elev. 3639 ft.
T34S R41W S33 SE1/4.  37.0471 N, 101.774 W; NAD 83, , GPS Reading.  
Sandsage prairie. Phenology: flowering & fruiting. 

Bernadette Kuhn, 5966.  6/28/2008. 		RM 
     with Joe Rankin
_________________________________________________________________________

419.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Otero County: Comanche National Grassland: between North and South Fork Jack Canyon, ca 20 air mi SSW of La Junta.  Elev. 4567 ft.
T27S R56W S11 SW1/4.  37.7048 N, 103.6459 W; NAD 83, , GPS Reading.  
Grazed pasture dominated by Buchloë dactyloides. Phenology: flowering & fruiting. 

Bernadette Kuhn, 6289.  7/9/2008. 		RM 
_________________________________________________________________________

420.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 5 air mi E of Utleyville; ca 20 air mi WSW of Springfield.  Elev. 4969 ft.
T32S R49W S8 N1/2.  37.2769 N, 102.9411 W; NAD 83, , GPS Reading.  
Sandsage prairie with large stands of Sporobolus and Andropogon gerardii. Phenology: flowering & fruiting. 

Bernadette Kuhn, 7055.  7/23/2008. 		RM 
_________________________________________________________________________

421.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Baca County: Comanche National Grassland: ca 14 air mi SSW of Pritchett.  Elev. 4919 ft.
T33S R49W S8 SE1/4.  37.1812 N, 102.9459 W; NAD 83, , GPS Reading.  
Stock tank, overflowing into open pool, dominated by Amaranthus and Polygonum. Phenology: flowering & fruiting. 

Bernadette Kuhn, 7081.  7/23/2008. 		RM 
_________________________________________________________________________

422.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Comanche National Grassland and Vicinity: Everett Jackson Ranch along West Carrizo Creek, ca 24 air mi SW of Pritchett.  Elev. 4870 ft.
T34S R51W S9.  37.1046 N, 103.1506 W; NAD 83, , GPS Reading.  
Lush creek banks dominated by Rhus aromatica, Populus, and Tamarix. Phenology: flowering & fruiting. 

Bernadette Kuhn, 7222.  7/24/2008. 		RM 
     with Everett Jackson
_________________________________________________________________________

423.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along east side of I-25, 1/4-3/4 air mi SW of where I-25 crosses the Vermejo River.  Elev. 5959 ft.
36 29' 12.2" N, 104 34' 41.4" W; WGS 84, uncertainty 13 m., GPS reading.  
Shortgrass prairie dominated by Bouteloua dactyloides, Hilaria jamesii, and other grasses; area along fenceline was recently disturbed. Uncommon on stony ground; heads pale purple. Phenology: flowering. 

Ben Legler, 3922.  6/7/2007. 		RM 840485	Barcode: rm0025470
     with Neil Snow
_________________________________________________________________________

424.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along banks of Vermejo River immediately downstream from (SE of) I-25.  Elev. 5858 ft.
36 29' 43.5" N, 104 34' 13.3" W; WGS 84, uncertainty 8 m., GPS reading.  
Sandy river bottom dominated by recently killed Salix (Tamarix control), with Glycyrrhiza lepidota, Helianthus annuus, Juncus balticus. Heads pale purple; uncommon. Phenology: flowering. 

Ben Legler, 3956.  6/7/2007. 		RM 840484	Barcode: rm0025469
     with Neil Snow
_________________________________________________________________________

425.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along banks of Vermejo River immediately downstream from (SE of) I-25.  Elev. 5858 ft.
36 29' 43.5" N, 104 34' 13.3" W; WGS 84, uncertainty 8 m., GPS reading.  
Sandy river bottom dominated by recently killed Salix (Tamarix control), with Glycyrrhiza lepidota, Helianthus annuus, Juncus balticus. Heads light purple; uncommon. Phenology: flowering. 

Ben Legler, 3986.  6/7/2007. 		RM 840483	Barcode: rm0025468
     with Neil Snow
_________________________________________________________________________

426.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: at intersection of Van Bremmer Road and U.S. Hwy 64, 8.5 air mi NE of Cimarron.  Elev. 6330 ft.
36 34' 27.5" N, 104 46' 41.4" W; WGS 84, uncertainty 3 m., GPS reading.  
Open flat shortgrass prairie. Heads lavender; large clump of plants on roadside. Photographed. Phenology: flowering. 

Ben Legler, 4158.  6/9/2007. 		RM 840482	Barcode: rm0025467
_________________________________________________________________________

427.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: western-most hill in the Cedar Hills, on east side of No. 2 Lake; 9 air mi E of Cimarron.  Elev. 6363 ft.
36 29' 57" N, 104 45' 14" W; WGS 84, Digital map.  
Small hill of eroding shale and sandstone capped by conglomerate, with scattered Juniperus monosperma and Cercocarpus montanus, surrounding flats dominated by Cylindropuntia imbricata, Opuntia sp., and short-grass prairie. Heads pale purple; stems scattered around base of hill. Phenology: flowering. 

Ben Legler, 4381.  6/15/2007. 		RM 840481	Barcode: rm0025466
_________________________________________________________________________

428.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: unnamed tributary to Dry Arroyo on notheast side of the Cedar Hills, 11/4 air mi E of Cimarron.  Elev. 6097 ft.
36 31' 8" N, 104 43' 42" W; WGS 84, Digital map.  
Dry arroyo, bottom muddy in spots, with Tamarix chinensis, Juncus balticus, grasses. Heads pale purple; scattered in arroyo. Phenology: flowering. 

Ben Legler, 4442.  6/15/2007. 		RM 840480	Barcode: rm0025465
_________________________________________________________________________

429.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: flats at mouth of Crow Canyon, 14.7 air mi SW of Raton.  Elev. 6399 ft.
36 43' 50.3" N, 104 36' 2.6" W; WGS 84, uncertainty 2 m., GPS reading.  
Flat grassland, dry soil, with scattered Yucca glauca, Atriplex. Heads light purple; scattered but common. Phenology: flowering. 

Ben Legler, 4754.  6/21/2007. 		RM 840479	Barcode: rm0025464
_________________________________________________________________________

430.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: old strip mine at junctions of York Canyon and Road Canyon, 3.5 air mi SE of Casa Grande.  Elev. 7475 ft.
36 52' 12.2" N, 104 55' 16.2" W; WGS 84, uncertainty 8 m., GPS reading.  
Coal strip mine covering many acres, now capped with a thin layer of soil and revegetated primarily with grasses, Atriplex canescens. Heads purple; stems single, scattered. Phenology: flowering. 

Ben Legler, 4846.  6/23/2007. 		RM 840478	Barcode: rm0025463
_________________________________________________________________________

431.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Vermejo Park Ranch: in Lorencito Canyon 0.47 mi N of mouth of Cottonwood Canyon; 1.35 air mi N of Colorado and 21 air mi SW of Trinidad.  Elev. 7448 ft.
37 0' 43" N, 104 50' 18" W; WGS 84, Digital map.  
Gently sloping grassland in canyon bottom, with numerous non-native weeds; soil mesic to dry. Flowers pale purple; stems mostly solitary; frequent among grasses and on road side. Phenology: flowering. 

Ben Legler, 5001.  6/26/2007. 		RM 840477	Barcode: rm0025462
_________________________________________________________________________

432.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Canadian River 0.13 mi S of (donwstream from) mouth of Jones Canyon; 9 air mi W of Raton.  Elev. 6970 ft.
36 54' 33.4" N, 104 36' 22.1" W; WGS 84, uncertainty 4 m., GPS reading.  
Small flowing river with large dry gravel bar and narrow strip of marshy shoreline dominated by Carex spp., Equisetum laevigatum, grasses. Heads light purple; stems solitary, scattered on gravel bar. Phenology: flowering. 

Ben Legler, 5267.  6/29/2007. 		RM 840476	Barcode: rm0025461
_________________________________________________________________________

433.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: rocky promitory on north side of Ponil Creek 3.2 air mi E of Cimarron.  Elev. 6376 ft.
36 30' 47" N, 104 51' 29" W; WGS 84, uncertainty 50 m., Digital map.  
Gently sloping rocky hill on shortgrass prairie, with sparse herbaceous vegetation and scattered Rhus aromatica var. trilobata, Cercocarpus montanus, Cylindropuntia imbricata; dry soil. Heads light purple; stems solitary; occasional. Phenology: flowering & fruiting. 

Ben Legler, 5444.  7/2/2007. 		RM 840475	Barcode: rm0025460
_________________________________________________________________________

434.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: at junction of Caliente Canyon and Mercer Canyon; 21 air mi WSW of Raton.  Elev. 7084 ft.
36 48' 50" N, 104 48' 15" W; WGS 84, Digital map.  
Dry flats above canyon floor with scattered Pinus edulis, Pinus ponderosa; recently thinned. Heads purple; stems scattered singly. Phenology: flowering & fruiting. 

Ben Legler, 5489.  7/3/2007. 		RM 840474	Barcode: rm0025459
_________________________________________________________________________

435.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along the Canadian River at mouth of Dargol Canyon; 14 air mi W of Raton.  Elev. 7288 ft.
36 55' 40.3" N, 104 40' 56.9" W; WGS 84, uncertainty 3 m., GPS reading.  
Rocky riverbanks and adjacent dry gravel bars, with scattered small Pinus ponderosa saplings, Senecio, Verbascum thapsus, Ratibida columnifera, grasses. Heads purple; uncommon in dry soil. Phenology: flowering. 

Ben Legler, 5849.  7/12/2007. 		RM 840473	Barcode: rm0025458
_________________________________________________________________________

436.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: southeast slope of ridgeline just S of point 9530 on unnamed ridge 2.1 air mi E of Underwood Lakes.  Elev. 9433 ft.
36 57' 45.7" N, 105 10' 24.8" W; WGS 84, uncertainty 3 m., GPS reading.  
Open, dry, southeast-facing slope with shrubby Quercus gambelii, scattered conifers, grasses. Heads pale purple; stems scattered singly; occasional. Phenology: flowering. 

Ben Legler, 6042.  7/14/2007. 		RM 900104	Barcode: RM0028024
_________________________________________________________________________

437.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: 0.4 air mi SE of junction of Lookout Canyon and Cerrososo Canyon; 18 air mi NNW of Cimarron.  Elev. 8055 ft.
36 45' 51.7" N, 105 0' 35.4" W; WGS 84, uncertainty 4 m., GPS reading.  
Sandy road shoulders of small dirt road leading to oil well pad, with scattered non-native grasses and weeds. Heads pale purple; stems scattered individually; occasional. Phenology: flowering. 

Ben Legler, 6437.  7/23/2007. 		RM 900103	Barcode: RM0028023
_________________________________________________________________________

438.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: flats around small pond on ridgeline between Caliente Canyon and East Fork Chimney Canyon, 8 air mi ENE of Casa Grande and 1.5 air mi S of NM Hwy 555.  Elev. 8232 ft.
36 53' 55.3" N, 104 50' 12.7" W; WGS 84, uncertainty 5 m., GPS reading.  
Open Pinus ponderosa woodland with grassy understory dominated by  Festuca arizonica, Hymenoxyx richardsonii, shrubby Quercus gambelii. Heads pale purple; stems solitary or in two's; occasional. Phenology: flowering & fruiting. 

Ben Legler, 6803.  7/31/2007. 		RM 900102	Barcode: RM0028022
_________________________________________________________________________

439.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Rock Creek 1.8 air mi W of west end of Mary's Lake; east base of Ash Mountain.  Elev. 8757 ft.
36 50' 49.5" N, 105 8' 11.8" W; WGS 84, uncertainty 4 m., GPS reading.  
Rocky road cut and road shoulder with loose sandy soil, surrounded by open forest of Pseudotsuga menziesii, Pinus flexilis, Abies concolor, shrubby Quercus gambelii. Heads pale purple; scattered. Phenology: flowering. 

Ben Legler, 6943.  8/1/2007. 		RM 900101	Barcode: RM0028021
_________________________________________________________________________

440.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Crow Canyon Road 6.1 air mi NW of Koehler townsite and 3.2 road mi up canyon from mouth of Little Crow Canyon.  Elev. 7186 ft.
36 47' 58.8" N, 104 41' 53.1" W; WGS 84, uncertainty 5 m., GPS reading.  
Open Pinus ponderosa forest on southwest-facing slope, with Hymenoxys richardsonii, Heterotheca villosa, grasses, scattered Quercus ×undulata. Heads pale pinkish-purple; stems scattered individually; occasional. Phenology: flowering & fruiting. 

Ben Legler, 7364.  8/9/2007. 		RM 900100	Barcode: RM0028020
_________________________________________________________________________

441.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: meadows on south side of mud flat 1.5 air mi E of Castle Rock; 5.5 air mi WSW of Casa Grande.  Elev. 8528 ft.
36 52' 24.5" N, 105 4' 27.4" W; WGS 84, uncertainty 4 m., GPS reading.  
Dry grassy meadows dominated by Festuca arizonica, Orthocarpus luteus. Heads pale purple; stems solitary; occasional. Phenology: flowering & fruiting. 

Ben Legler, 7898.  8/17/2007. 		RM 900099	Barcode: RM0028019
_________________________________________________________________________

442.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: junction of U.S. Hwy 50 and Colo Hwy 67, N of Florence.  Elev. 5420 ft.
T18S R69W S33 SW1/4.  38.4409 N, 105.1142 W.  
Prairie-grassland on south side of highway. Phenology: flowering & fruiting. 

Brian Elliott, 559.  5/27/1998. 		RM 
_________________________________________________________________________

443.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: along Cerrososo Canyon Road 2.5 road mi NW of its junction with U.S. Hwy 64; 5.2 air mi NE of Cimarron.  Elev. 6481 ft.
36.5695 N, 104.85508 W; WGS 84, GPS reading.  
Dry, gravelly roadside among canyon bottom grassland, with Lycium pallidum. Heads light purple; occasional. Specimen GPS: 36.564964, -104.851517. Phenology: flowering. 

Ben Legler, 8549.  6/7/2008. 		RM 900098	Barcode: RM0028018
_________________________________________________________________________

444.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: Dry arroyo on northeast side of Cerrososo Creek 1.9 air mi upstream (NW) from NM Hwy 64; 5.5 air mi NE of Cimarron.  Elev. 6481 ft.
36.567978 N, 104.840363 W; WGS 84, GPS reading.  
Dry arroyo surrounded by open Pinus edulis woodland. Heads creamy-white; uncommon in creek channel. Specimen GPS: 36.567528, -104.840561. Phenology: flowering. 

Ben Legler, 8568.  6/7/2008. 		RM 900097	Barcode: RM0028017
_________________________________________________________________________

445.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: around a watering pond in Juan Baca Canyon 1.7 air mi S of Casa Grande.  Elev. 7626 ft.
36.862427 N, 104.985367 W; WGS 84, GPS reading.  
Nearly dry, man made pond with muddy bottom; with Persicaria sp., Juncus bufonius; soil around pond dry, disturbed. Flowers pink-purple; frequent on earthen dam. Specimen GPS: 36.862202, -104.984993. Phenology: flowering. 

Ben Legler, 9220.  7/3/2008. 		RM 900096	Barcode: RM0028016
_________________________________________________________________________

446.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: at mouth of an unnamed canyon on southwest side of Caliente Canyon 1.3 air mi NW of mouth of Ben Thompson Canyon.  Elev. 7472 ft.
36.884338 N, 104.790527 W; WGS 84, GPS reading.  
Dry canyon bottom grassland with scattered Pinus ponderosa.  Heads pink; uncommon on edge of trees. Specimen GPS: 36.883495, -104.792252. Phenology: flowering. 

Ben Legler, 9505.  7/10/2008. 		RM 900095	Barcode: RM0028015
_________________________________________________________________________

447.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Colfax County: Vermejo Park Ranch: on east side of Little Vermejo Creek 0.1 air mi S of Colorado.  Elev. 8620 ft.
36.993668 N, 105.13475 W; WGS 84, GPS reading.  
Flat mesic meadows with Hesperostipa comata, Oxytropis sericea, and Ratibida columnifera. Heads pale purple; stems solitary; uncommon. Specimen GPS: 36.99305, -105.133789. Phenology: flowering. 

Ben Legler, 9616.  7/11/2008. 		RM 900094	Barcode: RM0028014
_________________________________________________________________________

448.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Vermejo Park Ranch: in Right Hand Fork Martinez Canyon 1/2 air mi up canyon from junction with Left Hand Fork Martinez Canyon; 17.7 air mi WSW of Trinidad.  Elev. 7190 ft.
37.034653 N, 104.736732 W; WGS 84, GPS reading.  
Canyon-bottom grassland; deep fine soil, with Ratibida columnifera, Bouteloua gracilis, Verbascum thapsus, Verbena macdougalii, and Chenopodium. Flower heads light pink; stems scattered; occasional. Specimen GPS: 37.034687, -104.736702. Phenology: flowering. 

Ben Legler, 10854.  8/17/2008. 		RM 900093	Barcode: RM0028013
_________________________________________________________________________

449.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 96, E of Wetmore, just over the county line.  Elev. 5540 ft.
T21S R68W S7 NW1/4.  38.2394 N, 105.0357 W.  
Prairie after steep grade. Phenology: flowering & fruiting. 

Brian Elliott, 737.  6/3/1998. 		RM 827812
     with Kenneth Elliott
_________________________________________________________________________

450.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Rock Creek Hill, on Colo Hwy 78, SW of Pueblo.  Elev. 5500 ft.
T22S R66W S18 N1/4.  38.1372 N, 104.8161 W.  
Pinyon-juniper; prairie. Phenology: flowering & fruiting. 

Brian Elliott, 822.  6/3/1998. 		RM 827811
     with Kenneth Elliott
_________________________________________________________________________

451.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: at Exit 42 on I-25.  Elev. 6400 ft.
T29S R65W S17 NW1/4.  37.5219 N, 104.6923 W.  
Grassland. Phenology: flowering & fruiting. 

Brian Elliott, 944.  6/4/1998. 		RM 827810
     with Kenneth Elliott
_________________________________________________________________________

452.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Stillwater County: Beartooth Mountains: Beehive Rock and vicinity, 0.5-1 air mi N of Beehive.  Elev. 4890-5623 ft.
T45S R16E S14 N1/2; also south1/2 S11.  45.4856 N, 109.7203 W to 45.498 N, 109.712 W; NAD 83, , GPS Reading.  
Limestone outcrops with slopes; area burned in forest fire in 2006; very motley mix of natives and exotics. Phenology: fruiting. 

Ronald L. Hartman, 85719.  6/15/2007. 		RM 939274	Barcode: RM0111204
_________________________________________________________________________

453.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Beartooth Mountains: N of Littlerock Creek at the foot of the Beartooth Plateau, ca 4.5 air mi E of Deep Lake, ca 7 air mi W of Clark; ca 29 air mi NNW of Cody.  Elev. 4920-5750 ft.
T57N R103W S22.  44.9024 N, 109.2966 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Stony sagebrush slopes. Phenology: flowering & fruiting. 

B. E. Nelson, 38333.  6/15/1996. 		USFS 860970	Barcode: USFS0043355
_________________________________________________________________________

454.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: ca 3.9 road mi S on Oak Creek Grade Road from Canon City; from ca 0.5-2.5 trail mi past Tanner Trailhead, on and around the trail.  Elev. 6300-8400 ft.
T19S R70W S29; also S30; also T19S R71W S25.  38.3688 N, 105.2432 W.  
Dominant species: pinyon pine, mountain mahogany, and oak; ponderosa and blue spruce at higher elevations; mainly granite outcrops, soil sandy to gravelly in texture. Phenology: flowering & fruiting. 

Charity Hall, 37.  6/5/1998. 		RM 830654
     with Brian Jacobs and Alex Morgan
_________________________________________________________________________

455.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: along County Road 201.  Elev. 6040-6060 ft.
T22S R67W S29 NW1/4; also NE1/4 S30.  38.1081 N, 104.9076 W.  
Dominant species: Melilotus, Medicago, and Convolvulus; near a small creek. Phenology: flowering & fruiting. 

Charity Hall, 484.  6/13/1998. 		RM 830653
     with Brian Jacobs and Alex Morgan
_________________________________________________________________________

456.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 6.9 road mi on Red Creek Road from intersection with Colo Hwy 96.  Elev. 5300 ft.
T21S R67W S26; NE1/4 26.  38.1956 N, 104.8527 W.  
Dominant species: Melilotus and thistle. Phenology: flowering & fruiting. 

Charity Hall, 524.  6/13/1998. 		RM 830652
     with Brian Jacobs and Alex Morgan
_________________________________________________________________________

457.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 3.4 road mi on Siloam Road from Colo Hwy 96.  Elev. 5700 ft.
T21S R68W S22.  38.2102 N, 104.9808 W.  
Roadside; dominant species: Melilotus and thistle. Phenology: flowering & fruiting. 

Charity Hall, 556.  6/13/1998. 		RM 830651
     with Brian Jacobs and Alex Morgan
_________________________________________________________________________

458.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., New Mexico, Union County: Clayton Lake State Park: 12 air mi NW of Clayton.  Elev. 1574 m.
36 35' 13" N, 103 18' 50" W; GPS reading.  
Rocky-sandy soil, from lake to steppe. Phenology: flowering & fruiting. 

Michael Schiebout, 6859.  6/29/2005. 		RM 823996	Barcode: RM0127056
_________________________________________________________________________

459.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Park County: Absaroka Range: Gallatin National Forest: from West Boulder Trailhead, along trail and West Boulder River to West Boulder Meadows, ca 26-27 air mi SW of Big Timber.  Elev. 5520-5700 ft.
T3S R11E S25 S1/2; also NW1/4 S36.  45.5466 N, 110.3082 W; WGS 84, , GPS reading.  
Moist aspen grove with Pinus contorta encroachment and a mixed forb understory. Phenology: flowering & fruiting. 

Emily Elliott, 6811.  8/2/2008. 		USFS 866923	Barcode: USFS0059375
     with Brian Elliott
_________________________________________________________________________

460.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Park County: Absaroka Range: Gallatin National Forest: near West Boulder River, ca 27.5 air mi SW of Big Timber.  Elev. 5700-6200 ft.
T3S R11E S35 SE1/4; also T4S R11E S2, E1/2 S10, and NW1/4 S11.  45.5296 N, 110.3255 W to 45.4822 N, 110.3637 W; WGS 84, , GPS reading.  
Dry, recently burned slope. Phenology: flowering. 

Emily Elliott, 6886.  8/3/2008. 		USFS 866924	Barcode: USFS0059374
     with Brian Elliott
_________________________________________________________________________

461.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colo Hwy 78, ca 5.5 air mi SW of Pueblo (city center).  Elev. 4900-5000 ft.
T21S R65W S17 SW1/2.  38.2248 N, 104.688 W.  
Roadcut with calcareous substrate. Phenology: flowering & fruiting. 

Ronald L. Hartman, 61225.  6/15/1998. 		RM 830663
_________________________________________________________________________

462.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Colo Hwy 78, ca 5.5 air mi SW of Pueblo (city center).  Elev. 4900-5000 ft.
T21S R65W S17 SW1/2.  38.2248 N, 104.688 W.  
Roadcut with calcareous substrate. Phenology: flowering & fruiting. 

Ronald L. Hartman, 61360.  6/15/1998. 		RM 830662
_________________________________________________________________________

463.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Rouse Interchange on I-25, on road to Pryor.  Elev. 6400 ft.
T29S R65W S17 NW1/4.  37.5219 N, 104.6923 W.  
Grassland and pinyon-juniper. Phenology: flowering & fruiting. 

Ronald L. Hartman, 61427.  6/17/1998. 		RM 830661
_________________________________________________________________________

464.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Judith Basin County: Lewis and Clark National Forest: Little Belt Mountains: Middle Fork Judith River, ca 1/4 mi upstream from Arch Coulee.  Elev. 1582 m.
T13N R11E S31.  46.8413 N, 110.3695 W; NAD 83, GPS reading.  
Open meadow on bench above river, scattered Pseudotsuga menziesii, flat. Phenology: flowering. 

Rick McNeill, 6743.  7/18/2009. 		RM 
     with Matt Voigt
_________________________________________________________________________

465.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: north end of Trinidad along I-25.  Elev. 6000-6050 ft.
T33S R63W S6 NW1/4.  37.2 N, 104.4936 W.  
Grassland with scattered thickets of pinyon-juniper. Phenology: flowering & fruiting. 

Ronald L. Hartman, 61554.  6/17/1998. 		RM 830660
_________________________________________________________________________

466.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: abandoned rest area on I-25 near Muddy and Greenhorn creeks.  Elev. 5400 ft.
T23S R66W S13.  38.0497 N, 104.7246 W.  
Grassland, weedy areas, and pinyon-oak-juniper. Phenology: flowering & fruiting. 

Ronald L. Hartman, 61575.  6/19/1998. 		RM 830659
_________________________________________________________________________

467.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland District: vicinity of Cow Creek  Camp/ Picnicground on Cow Creek ca 5.5 air mi W of Fort Howes Work Center, ca 25 air mi S Ashland.  Elev. 3850-4000 ft.
T6S R45E S17 SE1/4.  45.3129 N, 106.2447 W; NAD 83, , GPS reading.  
Open, southerly-facing slope with scattered ponderosa pine and adjacent open ridge-top. Phenology: flowering. 

B. E. Nelson, 78200.  7/25/2009. 		USFS 885640	Barcode: USFS0053228
_________________________________________________________________________

468.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: North Cave Hills: Browns Pond and vicinity on Campbell Creek, ca 6.5 air mi WSW of Ludlow; ca 15 air mi N of Buffalo.  Elev. 2900-2940 ft.
T21N R5E S10 SW1/4.  45.7949 N, 103.4983 W; NAD 83, , GPS reading.  
Weedy slopes and flats above the reservoir. Phenology: flowering. 

B. E. Nelson, 78428.  7/30/2009. 		USFS 885639	Barcode: USFS0053229
_________________________________________________________________________

469.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: on top and east side of buttes ca 3.5 air mi S of Reva Gap, ca 19.5 air mi SES of Buffalo.  Elev. 3360-3600 ft.
T18N R8E S32 W1/2.  45.4843 N, 103.1753 W to 45.4796 N, 103.1768 W to 45.4812 N, 103.1726 W to 45.4826 N, 103.1722 W; NAD 83, , GPS reading.  
Grass-forb meadow and open ponderosa pine woods. Phenology: flowering. 

B. E. Nelson, 78596.  8/1/2009. 		USFS 885638	Barcode: USFS0053227
_________________________________________________________________________

470.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: East Short Pine Hills: vicinity of Spring No. 3 just below and NE of Moreau Peak, ca 18 air mi SSW of Buffalo.  Elev. 3600-3760 ft.
T16N R3E S13 SW1/4.  45.3465 N, 103.7071 W; NAD 83, , GPS reading.  
Disturbed areas in a small meadow. Phenology: flowering. 

B. E. Nelson, 78725.  8/2/2009. 		USFS 885637	Barcode: USFS0053226
_________________________________________________________________________

471.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: in and around Sawmill Gulch near Jackson Sawmill Spring, ca 1.5 air mi of Poker Jim Butte Lookout and ca 20.5 air mi SSW of Ashland.  Elev. 3840-4050 ft.
T6S R44E S20 NE1/4; also NW1/4 S21.  45.3056 N, 106.358 W; NAD 83, , GPS reading.  
Sandy hillside above gulch. Phenology: flowering. 

Hans Hallman, 758.  6/20/2009. 		 	Barcode: USFS0050071
_________________________________________________________________________

472.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in and around Anderson Reservoir in Stafford Draw along Forest Road 47032, ca 3.5 air mi S of Home Creek School on U.S. Hwy 212, ca 16 air mi ESE of Ashland.  Elev. 3470-3540 ft.
T4S R46E S1.  45.5138 N, 106.0024 W; NAD 83, , GPS reading.  
Grassland with partially burned, open ponderosa pine forest. Phenology: flowering. 

Hans Hallman, 899.  6/20/2009. 		USFS 885664	Barcode: USFS0055521
_________________________________________________________________________

473.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carter County: Custer National Forest: Chalk Buttes: at Trenk Pass, within ca 0.5 air mi NW of Forest Road 3816, ca 12.5 air mi SW of Ekalaka.  Elev. 3760-3960 ft.
T1S R57E S28 NW1/4.  45.7317 N, 104.6869 W; NAD 83, , GPS reading.  
Sparsely wooded ponderosa pine upland. Phenology: flowering. 

Hans Hallman, 1356.  7/2/2009. 		USFS 885662	Barcode: USFS0053251
_________________________________________________________________________

474.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carter County: Custer National Forest: Chalk Buttes: from the top of the South Chalk Butte, ca 0.5 air mi SE of Alstrom Spring, into Birch Spring Draw, and NE toward Hehn Draw, ca 0.5-2 air mi SW of Trenk Pass, ca 13.5 air mi SW of Ekalaka.  Elev. 4100-4130 ft.
T1S R57E S29; also SE1/4 S30, NE1/4 S31, and NW1/4 S32.  45.7173 N, 104.717 W; NAD 83, , GPS reading.  
Top of butte along and near edge of rock face, dominated by ponderosa pine and grasses. Phenology: flowering. 

Hans Hallman, 1431.  7/2/2009. 		USFS 885661	Barcode: USFS0053250
_________________________________________________________________________

475.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: on top of and on southern slope of Home Creek Butte off of Suicide Pass Road spur or Forest Road 4777A, ca 4 air mi NW of Camps Pass and ca 16.5 air mi E of Ashland.  Elev. 4300-4400 ft.
T3S R47E S4 W1/2.  45.6027 N, 105.9351 W; NAD 83, , GPS reading.  
Upland woodland dominated by ponderosa pine and grasses; mostly shallow, rocky soils with some rock outcrops. Phenology: flowering. 

Hans Hallman, 1601.  7/5/2009. 		USFS 885660	Barcode: USFS0053249
_________________________________________________________________________

476.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just S of Forest Road 4785, ca 0.5 air mi SW of Camps Pass and ca 19 air mi ESE of Ashland.  Elev. 3840-4000 ft.
T3S R47E S27 NE1/4.  45.5479 N, 105.9016 W; NAD 83, , GPS reading.  
Ponderosa pine and green ash-dominated draw. Phenology: flowering. 

Hans Hallman, 1700.  7/6/2009. 		USFS 885659	Barcode: USFS0053248
_________________________________________________________________________

477.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just S of Forest Road 4785, ca 0.5 air mi SW of Camps Pass and ca 19 air mi ESE of Ashland.  Elev. 3780-4840 ft.
T3S R47E S27 NE1/4.  45.5483 N, 105.9042 W; NAD 83, , GPS reading.  
Grass-dominated meadow. Phenology: flowering & fruiting. 

Hans Hallman, 1725.  7/6/2009. 		USFS 885658	Barcode: USFS0053247
_________________________________________________________________________

478.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: in and around Brewer Reservoir, just W of Forest Road 3036, ca 13.5 air mi WNW of Camp Crook, SD.  Elev. 3860-4020 ft.
T3S R61E S5 NW1/4; also NE1/4 S6 and T2S R61E SE1/4 S31.  45.6047 N, 104.2286 W; NAD 83, , GPS reading.  
In and around small draw dominated by aspen and surrounded by open ponderosa pine woodland. Phenology: flowering. 

Hans Hallman, 1824.  7/10/2009. 		USFS 885657	Barcode: USFS0053246
_________________________________________________________________________

479.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carter County: Custer National Forest: Long Pines: just W of the state line, from Forest Road 3118 to an unnamed reservoir ca 1 air mi N of road, ca 7-8 air mi NNW of Camp Crook, SD.  Elev. 3300-3430 ft.
T2S R62E S22 E1/4; also SW1/4 S23, N1/2 S26, and NE1/4 S27.  45.6459 N, 104.0483 W; NAD 83, , GPS reading.  
Historic partial burn with sparse ponderosa pine woodland dominated by grasses. Phenology: flowering. 

Hans Hallman, 1928.  7/10/2009. 		USFS 885656	Barcode: USFS0053245
_________________________________________________________________________

480.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: West Short Pine Hills: in and around generally west-facing draws ca 2.5 air mi SSW of JK Butte, ca 10 air mi SSE of Camp Crook.  Elev. 3640-3740 ft.
T17N R1E S24 NE1/4; also SE1/4 S13.  45.4287 N, 103.9438 W; WGS 83, , GPS reading.  
South-facing grass-dominated slope with scattered ponderosa pine. Phenology: flowering. 

Hans Hallman, 2076.  7/12/2009. 		USFS 885655	Barcode: USFS0053244
_________________________________________________________________________

481.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in and around draws SE of junction of North Divide or Forest Road 3125 and Forest Road 3145 in the vicinity of Camp Spring, ca 4.5 air mi S of Reva Gap, ca 19 air mi ESE of Buffalo.  Elev. 3420-3460 ft.
T17N R8E S6.  45.4701 N, 103.1915 W; NAD 83, , GPS reading.  
In and near flowing water draw dominated by green ash, grasses, and sedges. Phenology: flowering. 

Hans Hallman, 2373.  7/17/2009. 		USFS 885654	Barcode: USFS0053243
_________________________________________________________________________

482.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: just SW of Summit Pass on SD Hwy 79, ca 23.5 air mi SE of Buffalo.  Elev. 3450 ft.
T16N R8E S8 N1/2.  45.3713 N, 103.1773 W; NAD 83, , GPS reading.  
Open ponderosa pine and grass woodland. Phenology: flowering. 

Hans Hallman, 2533.  7/17/2009. 		USFS 885653	Barcode: USFS0053242
_________________________________________________________________________

483.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: in and around Blacks Pond off of Forest Road 4021, ca 17 air mi S of Ashland.  Elev. 3650-3680 ft.
T6S R44E S1 NE1/4.  45.3472 N, 106.2883 W; NAD 83, , GPS reading.  
Grass-dominated slope above reservoir. Phenology: flowering. 

Hans Hallman, 2586.  7/22/2009. 		USFS 885652	Barcode: USFS0053241
_________________________________________________________________________

484.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Ca 0.5 air mi E of Mont Hwy 484 or Otter Creek Road, ca 6.5 air mi N of Fort Howes and ca 15 air mi SSE of Ashland.  Elev. 3240-3290 ft.
T5S R45E S22 NE1/4.  45.3935 N, 106.162 W; NAD 83, , GPS reading.  
Grass-dominated grazing land. Phenology: flowering. 

Hans Hallman, 2702.  7/22/2009. 		RM 
_________________________________________________________________________

485.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in and around Seymour Reservoir, ca 0.5 air mi N of Taylor Creek or Forest Road 4127, ca 7 air mi SE of Fort Howes and ca 27 air mi SSE of Ashland.  Elev. 3720-3800 ft.
T7S R47E S7 W1/4; also T7S R46E NE1/4 S12.  45.2465 N, 106.0316 W; NAD 83, , GPS reading.  
About reservoir. Phenology: flowering. 

Hans Hallman, 2752.  7/23/2009. 		USFS 885651	Barcode: USFS0053240
_________________________________________________________________________

486.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just N of Fifteenmile Creek or Forest Road 4094, ca 1 air mi NNE of Dalzells Spring, ca 21 air mi ESE of Ashland.  Elev. 3780-3840 ft.
T5S R47E S9 SE1/4; also SW1/4 S10, NW1/4 S15, and NE1/4 S16.  45.4037 N, 105.9251 W; NAD 83, , GPS reading.  
Green ash-dominated draw. Phenology: flowering. 

Hans Hallman, 4069.  8/13/2009. 		USFS 885650	Barcode: USFS0053239
_________________________________________________________________________

487.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Picketwire Valley, Colo Hwy 12, ca 1.5 air mi E of Valdez.  Elev. 6500 ft.
T33S R65W S32.  37.1272 N, 104.6932 W.  
Roadside. Phenology: flowering & fruiting. 

Ronald L. Hartman, 62369.  7/22/1998. 		RM 828980
_________________________________________________________________________

488.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Colo Hwy 12 at Romain Canyon, ca 2.3 road mi S of Monument Lake.  Elev. 8400-8500 ft.
37.1819 N, 105.0458 W.  
Roadside. Phenology: flowering & fruiting. 

Ronald L. Hartman, 62462.  7/22/1998. 		RM 828983
_________________________________________________________________________

489.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Indian Creek from Indian Creek trailhead, ca 0.8 air mi NW.  Elev. 8700-8800 ft.
T30S R69W S5.  37.4636 N, 105.1301 W.  
Mesic canyon with dry, sandy, volcanic outcrops to north. Phenology: flowering & fruiting. 

Ronald L. Hartman, 62749.  7/24/1998. 		RM 830658
     with Jim Fowler and Jason Fowler
_________________________________________________________________________

490.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: To ca 1.5 air mi NW of Moorehead Road, ca 4.5 air mi WSW of Broadus.  Elev. 3100-3220 ft.
T5S R50E S12; also T5S R51E S7 SW1/4.  45.4081 N, 105.4821 W; NAD 83, , GPS reading.  
Grass and sagebrush-dominated grazing land. Phenology: flowering. 

Hans Hallman, 5020.  6/19/2010. 		RM 
_________________________________________________________________________

491.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: W of Forest Road 4794 in the vicinity of Horse Creek Buttes, ca 6 air mi SE of Poker Jim Butte, ca 23 air mi S of Ashland.  Elev. 3900-3980 ft.
T6S R44E S36 SE1/4; also T7S R44E S1 NE1/4 and T7S R45E S6 NW1/4.  45.2712 N, 106.2799 W; NAD 83, , GPS reading.  
Draw dominated by chokecherry, boxelder, and Symphoricarpos with rock outcrops on margins. Phenology: flowering. 

Hans Hallman, 5328.  6/26/2010. 		USFS 885649	Barcode: USFS0053238
_________________________________________________________________________

492.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: N of Forest Road 4409, generally between Cabin Creek Spring and Deer Creek Spring, ca 11 air mi ENE of Ashland.  Elev. 3620 ft.
T2S R46E S17 E1/2; also S16 W1/2, S20 NE1/4, and S21 NW1/4.  45.655 N, 106.0598 W; NAD 83, , GPS reading.  
Sparse ponderosa pine forest with understory of grasses and Artemisia. Phenology: flowering. 

Hans Hallman, 5371.  6/28/2010. 		USFS 885648	Barcode: USFS0053237
_________________________________________________________________________

493.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in the vicinity of the head of Red Cross Draw, ca 1 air mi N of Reva Gap, ca 18 air mi E of Buffalo.  Elev. 3480-3520 ft.
T18N R8E S6 SE1/4; also S7 NE1/4.  45.547 N, 103.1818 W; NAD 83, , GPS reading.  
Grass, sagebrush, and snowberry-dominated flat. Phenology: flowering. 

Hans Hallman, 5628.  7/2/2010. 		USFS 883308	Barcode: USFS0049134
_________________________________________________________________________

494.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: just N of Forest Road 4410, ca 2 air mi E of Yager Butte, ca 17 air mi ESE of Ashland.  Elev. 3800-3880 ft.
T4S R47E S19 S1/4; also S30 N1/2.  45.4612 N, 105.9809 W; NAD 83, , GPS reading.  
Open ponderosa pine forest with grass and sagebrush-dominated understory and scattered rock outcrops. Phenology: flowering. 

Hans Hallman, 5726.  7/4/2010. 		USFS 885647	Barcode: USFS0053236
_________________________________________________________________________

495.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Forest Road 4516, ca 2 air mi W of Mont Hwy 484 or Otter Creek Road, ca 6.5 air mi NNW of Fort Howes.  Elev. 3300-3420 ft.
T5S R45E S20 E1/4; also S21 W1/2.  45.3875 N, 106.1952 W; NAD 83, , GPS reading.  
Grass and sagebrush-dominated grazing land. Phenology: flowering. 

Hans Hallman, 6041.  7/10/2010. 		USFS 883309	Barcode: USFS0049135
_________________________________________________________________________

496.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Griffin Pass, E of Forest Road 4431, ca 21.5 air mi ENE of Ashland.  Elev. 3740-3800 ft.
T2S R48E S20 NW1/4; also S17 SW1/4.  45.6526 N, 105.8345 W; NAD 83, , GPS reading.  
Ponderosa pine woodland with grass-dominated understory. Phenology: flowering. 

Hans Hallman, 6118.  7/12/2010. 		USFS 885646	Barcode: USFS0053235
_________________________________________________________________________

497.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of East Fork Spring, just S of East Fork Otter Creek Road, ca 14 air mi ENE of Ashland.  Elev. 3760-3790 ft.
T2S R46E S25.  45.6334 N, 105.9905 W; NAD 83, , GPS reading.  
Moist, grazed draw dominated by green ash, Prunus, and Crataegus. Phenology: flowering. 

Hans Hallman, 6198.  7/13/2010. 		USFS 885645	Barcode: USFS0053234
_________________________________________________________________________

498.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carter County: Custer National Forest: Ekalaka Hills: just E of Forest Road 3814, ca 1 air mi ENE of Smith Well, ca 5.5 mi SSW of Ekalaka.  Elev. 3900-4020 ft.
T1N R58E S19 SW1/4; also S30 NW1/4.  45.8154 N, 104.5661 W; NAD 83, , GPS reading.  
Open ponderosa pine forest in historic burn with thick stands of regenerating pine up to 15 ft. tall; associates include Juniperus, Rhus, and grasses. Phenology: flowering. 

Hans Hallman, 6233.  7/15/2010. 		USFS 885644	Barcode: USFS0053233
_________________________________________________________________________

499.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Suicide Pass near Forest Road 4777, ca 1 air mi N of U.S. Hwy 212, ca 18.5 air mi E of Ashland.  Elev. 4000-4120 ft.
T3S R47E S23 N1/4; also S14 S1/4.  45.5634 N, 105.8942 W; NAD 83, , GPS reading.  
Ponderosa pine-dominated woodland. Phenology: flowering. 

Hans Hallman, 6394.  7/18/2010. 		USFS 885643	Barcode: USFS0053232
_________________________________________________________________________

500.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Harding County: Custer National Forest: Slim Buttes: in the vicinity of Road Draw Spring No. 2, SE of JB Pass, E of Forest Road 3148, ca 20 air mi SE of Buffalo.  Elev. 3420-3480 ft.
T17N R8E S25 W1/2.  45.4074 N, 103.214 W; NAD 83, , GPS reading.  
In the vicinity of hardwood draw with green ash, boxelder, and chokecherry. Phenology: flowering. 

Hans Hallman, 6587.  7/23/2010. 		USFS 885642	Barcode: USFS0053231
_________________________________________________________________________

501.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Powder River County: Custer National Forest: Ashland Ranger District: in the vicinity of Cow Creek, just S of Forest Road 4095, ca 1.5 air mi W of Otter Creek Road or Mont Hwy 484, ca 2 air mi WSW of Fort Howes.  Elev. 3400-3480 ft.
T6S R45E S26 NE1/4.  45.2943 N, 106.1848 W; NAD 83, , GPS reading.  
Flowing water draw with cottonwood, green ash, Juncus, and Salix. Phenology: flowering. 

Hans Hallman, 6806.  7/27/2010. 		USFS 885641	Barcode: USFS0053230
_________________________________________________________________________

502.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Vermejo Park Ranch: ca 6 air mi S of Lorencito (Colo Hwy 12).  Elev. 7250 ft.
37.0417 N, 104.7833 W.  
Pinus ponderosa, riparian. Phenology: flowering & fruiting. 

Brian Elliott, 10730.  8/9/1999. 		RM 830178
     with Elizabeth mark
_________________________________________________________________________

503.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana: Absaroka National Foreset.  Elev. 6000 ft.
T4N R10E S10.  
West slope; sandy soil; flat with adders tongue, golden seal, death camas, geranium. Phenology: flowering & fruiting. 

C. H. Hurst, 67.  7/19/1913. 		USFS 476083
_________________________________________________________________________

504.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana: Missoula National Forest.  Elev. 6000 ft.
Phenology: flowering. 

H. R. Richards, R-16.  7/31/1921. 		USFS 476082
_________________________________________________________________________

505.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Glacier County: Midvale (now East Glacier Park).
Hills. Phenology: fruiting. 

L. M. Umbach, 495.  7/23/1903. 		RM 159608
_________________________________________________________________________

506.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Jefferson County: Deerlodge National Forest.  Elev. 4800 ft.
T3N R4W S28.  
Gravelly soil. Phenology: flowering. 

Orville Sparrow, 83.  7/22/1934. 		USFS 476084
_________________________________________________________________________

507.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana: Deerlodge National Forest.  Elev. 6250 ft.
Sandy loam; open dry rocky and well drained areas in full sunshine. Phenology: flowering. 

Charles Fleming, 61.  7/18/1911. 		USFS 476085
_________________________________________________________________________

508.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Lake County: 4.5 mi NW of Polson
In prairie. Common. Phenology: flowering. 

Gerald B. Ownbey, 2900.  7/27/1960. 		RM 287806
     with Yu-Tseng Hsi
_________________________________________________________________________

509.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Gallatin County: Bozeman.
Phenology: vegetative only. 

J. W. Blankinship, s.n..  5/10/1901. 		RM 122337
_________________________________________________________________________

510.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Mineral County: 7.6 mi W of Alberton, Hwy 10.  Elev. 3000 ft.
Hillsides, ponderosa pine zone. Common; Flowers pale lavender to white. Phenology: fruiting. 

Gerald B. Ownbey, 2663.  8/31/1958. 		RM 262345
_________________________________________________________________________

511.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Carbon County: Yellowtail Reservoir, ca 3/4 mi upstream from Layout Creek.  Elev. 3660 ft.
T9S R28E S12.  
Rock amphitheater. Phenology: flowering. 

Ellen Collins, 725.  6/13/1983. 		RM 355267
_________________________________________________________________________

512.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Wheatland County: About 3 mi NW of Shawmut.
In bunchgrass along road. Phenology: flowering. 

W. E. Booth, 55336.  6/26/1955. 		RM 248224
_________________________________________________________________________

513.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska: O'neill.
Hand written label not legible. Phenology: flowering. 

J. M. Bates, s.n..  7/18/1898. 		RM 15765
_________________________________________________________________________

514.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Brown County: Hwy 20, 8.3 mi W of Ainsworth.
In prairie. Common. Phenology: flowering & fruiting. 

Gerald B. Ownbey, 2495.  8/15/1957. 		RM 257777
     with Yu-tseng Hsi
_________________________________________________________________________

515.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Deuel County: Hwy 30, ca 2 mi E of Chappell.
Along roadside and scattered into a field. Phenology: fruiting. 

R. Gardner, 171.  8/3/1971. 		RM 293087
_________________________________________________________________________

516.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska: Franklin.
Phenology: flowering & fruiting. 

Harry Hapeman, s.n..  6/9/1932. 		RM 223375
_________________________________________________________________________

517.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., North Dakota, Ward County: Des Lacs National Wildlife Refuge: west side of upper Des Lacs Lake, 3.5 mi NNW of Kenmare.
Prairie. Phenology: flowering & fruiting. 

Neil Hotchkiss, 6793.  7/13/1932. 		RM 604535
_________________________________________________________________________

518.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., North Dakota, Cass County: Fargo.
Prairie roadside. Phenology: fruiting. 

O. A. Stevens, s.n..  8/15/1934. 		RM 154028
_________________________________________________________________________

519.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Brookings County: Vicinity of Brookings.
Phenology: flowering. 

Tom A. Williams, s.n..  8/28/1892. 		RM 68573
_________________________________________________________________________

520.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska: O'neill.
Phenology: flowering & fruiting. 

J. M. Bates, s.n..  7/18/1898. 		RM 15764
_________________________________________________________________________

521.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Box Butte County: Hwy 2, 21.8 mi S of Crawford.
On prairie between limestone hills; growing with Cirsium ochrocentrum and Cirsium undulatum. Phenology: flowering. 

Gerald B. Ownbey, 2503.  8/16/1957. 		RM 257715
     with Yu-Tseng Hsi
_________________________________________________________________________

522.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Webster County: Red Cloud.
Phenology: fruiting. 

J. M. Bates, s.n..  7/11/1912. 		RM 253101
_________________________________________________________________________

523.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Dawes County: 20 mi S of Chadron.  Elev. 4000 ft.
T30N R48W S20; also S21.  42.55951 N, 102.96965 W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!.  
Rolling grassland sandhills. Phenology: flowering & fruiting. 

C. L. Porter, 8776.  7/19/1961. 		RM 264931
     with Marjorie W. Porter
_________________________________________________________________________

524.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Nebraska, Holt County: Hwy 20, 5.7 mi W of O'Neill.
Flat prairie, pasture by roadside. Common; plants to 30" tall, perennial. Phenology: flowering & fruiting. 

Gerald B. Ownbey, 2491.  8/15/1957. 		RM 257716
     with Yu-tseng Hsi
_________________________________________________________________________

525.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: at the northwest corner of Trinidad on Simpsons Rest, Northern Blvd past the water tank to top of ridge.  Elev. 6300 ft.
T33S R64W S12 SW1/4; South1/2 S12..  37.1854 N, 104.5118 W.  
Rocky bluffs, Pinyon-Juniper, also Quercus. Phenology: flowering. 

Brian Elliott, 5839.  5/21/1999. 		RM 832019
_________________________________________________________________________

526.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: On Ridge Road, on ridge above Tony Coulee, ca 2.5 air mi SW of Finn Reservoir, ca 36 air mi SW of Glasgow.  Elev. 2850-3130 ft.
T25N R35E S19 NE1/4.  47.91 N, 107.259 W; NAD 83, GPS reading.  
Sandy roadside. Phenology: flowering. 

Joseph L. M. Charboneau, 420.  6/24/2010. 		RM 
_________________________________________________________________________

527.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: On North Frenchman Road, on ridge above Steelman Coulee, ca 8.5 air mi NE of Gray Reservoir, ca 37.5 air mi N of Saco; ca 51 air mi NNE of Malta.  Elev. 2640-2840 ft.
T37N R33E S2 SW1/4.  48.9904 N, 107.3501 W; NAD 83, GPS reading.  
Grasslands on loamy soil. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 687.  6/30/2010. 		RM 
_________________________________________________________________________

528.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: W of U.S. Hwy 191 on Fanny Hill, ca 2 air mi NNW of the confluence of Cottonwood Creek and the Milk River, ca 16 air mi NNE of Malta.  Elev. 2480-2620 ft.
T33N R30E S35 SW1/4.  48.5684 N, 107.7729 W; NAD 83, GPS reading.  
Roadside. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 869.  6/30/2010. 		RM 
_________________________________________________________________________

529.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: W of Larb Creek Road, in Black Coulee and ridge to the N, ca 3 air mi NW of Korman Reservoir, ca 36 air mi WSW of Glasgow.  Elev. 2470-2580 ft.
T27N R34E S20 NW1/4.  48.0799 N, 107.3775 W; NAD 83, GPS reading.  
Sagebrush-grasslands on clayey soil. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 1069.  7/5/2010. 		RM 
_________________________________________________________________________

530.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: E of Harb Road, in Guston Coulee and on ridge to the N, ca 4.5 air mi SW of Regal Springs, ca 17 air mi ESE of Malta.  Elev. 2310-2400 ft.
T29N R32E S23 SW1/4.  48.2523 N, 107.5396 W; NAD 83, GPS reading.  
Loamy coulee bottom. Phenology: flowering. 

Joseph L. M. Charboneau, 988.  7/5/2010. 		RM 
_________________________________________________________________________

531.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: Just N of Rock Creek Dam Road, ca 0.5 air mi W of Rock Creek, ca 5.5 air mi NNE of Hinsdale.  Elev. 2250-2300 ft.
T31N R36E S4 SE1/4.  48.4675 N, 107.0485 W; NAD 83, GPS reading.  
Roadside. Phenology: flowering. 

Joseph L. M. Charboneau, 1367.  7/8/2010. 		RM 
_________________________________________________________________________

532.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: E of North Dodson Road, ca 11 air mi SW of Hubert Hill, ca 23.5 air mi NW of Malta.  Elev. 2830-2850 ft.
T33N R27E S31 SW1/4.  48.5766 N, 108.2534 W; NAD 83, GPS reading.  
Roadside slopes. Phenology: flowering. 

Joseph L. M. Charboneau, 1694.  7/15/2010. 		RM 
_________________________________________________________________________

533.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Assiniboine Creek, W of Assiniboine Road, ca 8 air mi WNW of the confluence of Assiniboine Creek with the Milk River, ca 10 air mi NNW of Malta.  Elev. 2500-2600 ft.
T32N R29E S32 SE1/4; also S33 SW1/4.  48.4826 N, 107.9761 W; NAD 83, GPS reading.  
Grassland valley. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 1737.  7/15/2010. 		RM 
_________________________________________________________________________

534.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Blaine County: W of Mont Hwy 241, ca 2 air mi SSW of the Turner Port of Entry, ca 10.5 air mi NW of Turner; ca 33 air mi NNE of Harlem.  Elev. 3000-3060 ft.
T37N R24E S14 NW1/4.  48.9698 N, 108.4107 W; NAD 83, GPS reading.  
Grasslands on glaciated hills of clay soil with dry potholes. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 2005.  7/22/2010. 		RM 
_________________________________________________________________________

535.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: N of Sunnyslope Road, ca 7 air mi WSW of the Morgan Port of Entry, ca 12 air mi NNW of Loring; ca 42 air mi NNW of Malta.  Elev. 2830-2850 ft.
T37N R29E S19 NW1/4.  48.9521 N, 107.9642 W; NAD 83, GPS reading.  
Grasslands on clay soil. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 2019.  7/22/2010. 		RM 
_________________________________________________________________________

536.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Upper Missouri River Breaks National Monument: at the end of Winter Ridge Road above and W of Winter Creek, ca 15 air mi SW of Hays; ca 61 air mi SW of Malta.  Elev. 2880-3100 ft.
T24N R22E S34 E1/2.  47.8067 N, 108.8785 W to 47.8028 N, 108.8789 W; NAD 83, GPS reading.  
Sandy grassland flats and hilltops. Phenology: flowering. 

Joseph L. M. Charboneau, 2242.  7/25/2010. 		RM 
     with B. E. Nelson
_________________________________________________________________________

537.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Little Rocky Mountains: along road between Camp Creek and Beaver Creek, ca 0.5 air mi N of top of Old Scraggy Peak, ca 2 air mi N of Zortman; ca 41.5 air mi SW of Malta.  Elev. 4780-4890 ft.
T25N R25E S5 SE1/4.  47.9441 N, 108.5251 W; NAD 83, GPS reading.  
Roadside. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 3566.  8/21/2010. 		RM 
_________________________________________________________________________

538.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Reservoir No. 161, S of U.S. Hwy 191 and W of Rudolph Valley Road, ca 2.5 air mi W of Partnership Reservoir, ca 17 air mi SW of Malta.  Elev. 2550-2560 ft.
T28N R28E S23 SW1/4.  48.1641 N, 108.0845 W; NAD 83, GPS reading.  
Raised levee abutting dry canal. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 3722.  8/22/2010. 		RM 
_________________________________________________________________________

539.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: up Five Point Gulch, ca 1.5 mi E of Texas Creek; W of Pueblo on U.S. Hwy 50.  Elev. 7000 ft.
T19S R73W S6; also E1/2 S8, E1/2 S21, E1/2 S9, W1/2 S3, S2, S5.  38.427 N, 105.5791 W.  
Canyon and west side of ridge in pinyon-juniper. Phenology: buds. 

Brian Elliott, 6396.  6/3/1999. 		RM 832018
     with Elizabeth Mark
_________________________________________________________________________

540.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 2 mi W on County Road 610; N of Walsenburg at I-25 exit 59.  Elev. 6350 ft.
T27S R67W S13.  37.6968 N, 104.8382 W.  
Pinyon-juniper/grassland transition. Phenology: flowering & fruiting. 

Brian Elliott, 6514.  6/6/1999. 		RM 832017
     with Elizabeth Mark
_________________________________________________________________________

541.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Saguache County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Rio Grande National Forest: mouth of North Crestone Creek Canyon, ca 1 air mi NE of Crestone.  Elev. 8400 ft.
T44N R12E S31 South1/2.  38.0188 N, 105.6999 W.  
Pinyon-juniper. Phenology: flowering. 

Brian Elliott, 6774.  6/9/1999. 		RM 832016
     with Elizabeth Mark
_________________________________________________________________________

542.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: W of Castle Rock Reservoir, ca 2 air mi S of Walsenburg on County Road 330.  Elev. 6300 ft.
T28S R66W S22 W1/2.  37.5948 N, 104.9842 W.  
Bouteloua grassland. Phenology: flowering & fruiting. 

Brian Elliott, 6965.  6/12/1999. 		RM 832015
     with Elizabeth Mark
_________________________________________________________________________

543.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Huerfano County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Black Hawk State Trust Lands off County Road 312, ca 10 air mi S of Walsenberg.  Elev. 6800 ft.
T29S R66W S36 NE1/4.  37.4782 N, 104.7288 W.  
Pinyon-juniper-Quercus forest. Phenology: flowering. 

Brian Elliott, 7003.  6/12/1999. 		RM 832014
     with Elizabeth Mark
_________________________________________________________________________

544.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 2 air mi W of Branson on County Road 6.8.  Elev. 6000 ft.
T35S R59W S1 W1/2.  37.0253 N, 103.9676 W.  
Along the railroad right-of-way in pinyon-juniper-Quercus forest. Phenology: flowering. 

Brian Elliott, 7043.  6/12/1999. 		RM 832013
     with Elizabeth Mark
_________________________________________________________________________

545.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: ca 17 air mi SW of Pueblo on County Road 221.  Elev. 5660 ft.
T23S R67W S12 NE1/4.  38.0643 N, 104.8344 W.  
Grassland. Phenology: flowering. 

Brian Elliott, 7067.  6/14/1999. 		RM 832012
     with Elizabeth Mark
_________________________________________________________________________

546.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: Seminoe Mountains: drainage W of BLM Road 3108, ca 1.6 air mi NE of Kortes Dam.  Elev. 6500 ft.
T26N R84W S35.  42.1807 N, 106.8512 W.  
Creek through cottonwood and ponderosa pine. Phenology: flowering & fruiting. 

Amy J. Roderick, 6939.  7/20/1998. 		RM 
_________________________________________________________________________

547.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: Bosque de Oso Wildlife Area, Torres Canyon, SW of Weston.  Elev. 7400 ft.
37.0958 N, 104.8917 W.  
Riparian with Quercus. Phenology: flowering. 

Brian Elliott, 7446.  6/18/1999. 		RM 832011
     with Elizabeth Mark
_________________________________________________________________________

548.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sweetwater County: Cedar Mountain, northeast end.  Elev. 7600 ft.
41 11.7' N, 109 55.5' W; Specimen Label.  
Open juniper woodland with Artemisia tridentata and Bromus tectorum. Flowers lavender. Phenology: flowering & fruiting. 

Robert D. Dorn, 10667.  7/14/2010. 		RM 906941	Barcode: RM0283184
_________________________________________________________________________

549.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Arizona, Coconino County: Coconino National Forest: Buck Mountain Flats, ca 6 mi S of Happy Jack Ranger Station.  Elev. 7000 ft.
T15N R9E S21; also S27 and S28.  34.6625 N, 111.3918 W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!.  
Ponderosa pine forest. IMAX control. Phenology: flowering & fruiting. 

James F. Fowler, 3323.  7/18/2003. 		USFS 857370
_________________________________________________________________________

550.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Custer County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: along Forest Road 198 from Luthern Camp to Balman Reservoir, NW of Westcliffe.  Elev. 8400-9400 ft.
T46N R12E S5 South1/2; also South1/2 S6.  38.2654 N, 105.666 W.  
Mixed conifer and Quercus gambellii. Phenology: flowering & fruiting. 

Brian Elliott, 4098b.  7/24/1998. 		RM 827814
_________________________________________________________________________

551.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: from Hayden Campground up toward Hayden Pass, ca 9 air mi S of Howard.  Elev. 8100 ft.
T47N R10E S14; also N1/2 S23.  38.3207 N, 105.8329 W.  
Pinus ponderosa, Quercus gambellii, Pseudotsuga, and Abies concolor. Phenology: flowering & fruiting. 

Brian Elliott, 8241.  7/3/1999. 		RM 832010
     with Elizabeth Mark
_________________________________________________________________________

552.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Pueblo Reservoir State Park: ca 3.5 road mi W of the west entrance on Colo Hwy 96.  Elev. 5200 ft.
T20S R67W S33 SE1/4; also SW1/4 S34.  38.2677 N, 104.8929 W.  
Small grade; prairie and pinyon-juniper. Phenology: flowering & fruiting. 

Brian Elliott, 1311B.  6/10/1998. 		RM 827808	Barcode: 828982
_________________________________________________________________________

553.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: on Colo Hwy 96 at the junction of Siloam Road, ca 6 air mi E of Wetmore.  Elev. 5450 ft.
T21S R68W S3 NE1/4.  38.254 N, 104.9808 W.  
Roadside and grassland. Phenology: flowering. 

Brian Elliott, 8616.  7/9/1999. 		RM 832009
     with Elizabeth Mark
_________________________________________________________________________

554.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: At the end of the Montfort Road 2.5-3 air mi S of Vandalia; ca 10 air mi SE of Hinsdale.  Elev. 2260-2350 ft.
T30N R37E S33 NE1/4.  48.3141 N, 106.9163 W to 48.3205 N, 106.9121 W; NAD 83, GPS reading.  
Stony slopes and tops. Phenology: flowering & fruiting. 

B. E. Nelson, 82443.  6/26/2011. 		RM 
_________________________________________________________________________

555.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Charles M. Russell National Wildlife Refuge: CK Ridge, W of Refuge Road 206, ca 10 air mi ESE of Taint Reservoir, ca 24 air mi SE of Zortman; ca 52 air mi SSW of Malta.  Elev. 2640-2900 ft.
T22N R27E S24 N1/2.  47.6616 N, 108.1914 W to 47.6591 N, 108.1985 W; NAD 83, GPS reading.  
Open, south-facing slopes. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 6074.  6/28/2011. 		RM 
_________________________________________________________________________

556.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Larb Hills (North): N of Cottonwood Creek, ca 4 air mi S of Bauer Reservoir, ca 13 air mi SW of Saco; ca 17.5 air mi ESE of Malta.  Elev. 2480-2650 ft.
T29N R32E S1 N1/2.  48.3002 N, 107.5084 W; NAD 83, GPS reading.  
Silver sagebrush-grasslands on loamy soil on rolling hills with swales. Phenology: flowering. 

Joseph L. M. Charboneau, 6355.  6/30/2011. 		RM 
_________________________________________________________________________

557.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Larb Hills (North): E of Lower Harb Road, ca 1.5 air mi E of Beaver Creek, ca 15 air mi SW of Saco; ca 15.5 air mi ESE of Malta.  Elev. 2330-2500 ft.
T29N R32E S3 NW1/4.  48.3039 N, 107.5591 W; NAD 83, GPS reading.  
Rolling sagebrush-grasslands on loamy soil with slopes and swales. Phenology: flowering. 

Joseph L. M. Charboneau, 6455.  6/30/2011. 		RM 
_________________________________________________________________________

558.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: Uhlan Coulee, ca 2.5 air mi W of Porcupine Creek, ca 23 air mi N of Fort Peck; ca 12 air mi NE of Glasgow.  Elev. 2550-2700 ft.
T30N R41E S30 NW1/4.  48.3321 N, 106.4504 W to 48.3246 N, 106.4493 W; NAD 83, GPS reading.  
Grasslands on hills with slopes and swales on loamy soil. Phenology: flowering. 

Joseph L. M. Charboneau, 6663.  7/3/2011. 		RM 
_________________________________________________________________________

559.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: SW of Martin Lake, N of Turner Cutacross Road, ca 4 air mi W of Loring; ca 15 air mi WNW of Whitewater; ca 30 air mi NNW of Malta.  Elev. 2790-2800 ft.
T35N R29E S16 SW1/4.  48.7898 N, 107.9482 W; NAD 83, GPS reading.  
Grasslands with occasional silver sagebrush on loamy soil. Phenology: flowering. 

Joseph L. M. Charboneau, 6800.  7/5/2011. 		RM 
_________________________________________________________________________

560.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: S of Tiger Butte Road, ca 3 air mi SSE of Tiger Butte, ca 7 air mi NNW of Fort Peck; ca 9.5 air mi SE of Glasgow.  Elev. 2200-2210 ft.
T27N R40E S13 NW1/4.  48.0986 N, 106.5042 W; NAD 83, GPS reading.  
Grasslands with fringed sage on sandy soil with swales. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 7011.  7/7/2011. 		RM 
_________________________________________________________________________

561.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Korsbeck Waterfowl Production Area: W of Stage Road, ca 8 air mi N of Ester Lake, ca 24 air mi NNE of Zortman; ca 21.5 air mi SW of Malta.  Elev. 2590-2600 ft.
T28N R27E S5 N1/2.  48.2154 N, 108.2706 W; NAD 83, GPS reading.  
Grasslands on loamy soil with occasional silver sagebrush, alkaline areas, and large patches of crested wheatgrass, yellow sweetclover, and alfalfa. Phenology: flowering. 

Joseph L. M. Charboneau, 7326.  7/11/2011. 		RM 
_________________________________________________________________________

562.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Matador Ranch: Coburn Butte and prairie to the E, ca 8.5 air mi WSW of Veseth Reservoir, ca 8.5 air mi ESE of Zortman; ca 40 air mi SSW of Malta.  Elev. 3130-3760 ft.
T25N R26E S27 N1/2.  47.8933 N, 108.3518 W to 47.891 N, 108.3647 W to 47.8973 N, 108.3578 W; NAD 83, GPS reading.  
Grasslands at base of butte with sandy soil. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 7460.  7/11/2011. 		RM 
_________________________________________________________________________

563.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Little Rocky Mountains: E of Lodgepole Creek, ca 1 1/4 air mi N of Green Mountain, ca 4.5 air mi NNW of Zortman; ca 42 air mi SW of Malta.  Elev. 4180-4430 ft.
T26N R25E S31 NE1/4; also S30 SW1/4.  47.9701 N, 108.5521 W to 47.9728 N, 108.5551 W to 47.9741 N, 108.5593 W; NAD 83, GPS reading.  
South-facing slopes with ponderosa pine forest and open meadows. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 8172.  7/23/2011. 		RM 
_________________________________________________________________________

564.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Little Rocky Mountains: Emerson Creek, ca 2.5 air mi WNW of Beaver Mountain, ca 6 air mi NNE of Landusky; ca 43 air mi SW of Malta.  Elev. 4160-4570 ft.
T26N R24E S25 South1/2.  47.9766 N, 108.5752 W to 47.9755 N, 108.5821 W; NAD 83, GPS reading.  
South-facing slope with open areas and ponderosa pine forest. Phenology: flowering. 

Joseph L. M. Charboneau, 8260.  7/23/2011. 		RM 
_________________________________________________________________________

565.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Bowdoin National Wildlife Refuge: along Refuge Tour Road, near Black Coulee Pond, ca 6 air mi NW of Le Noir Reservoir, ca 3.5 air mi E of the Milk River, ca 7 air mi ENE of Malta.  Elev. 2240-2260 ft.
T30N R31E S5 SW1/4.  48.3844 N, 107.7352 W to 48.3805 N, 107.7352 W; NAD 83, GPS reading.  
Grasslands with scattered silver sagebrush on loamy soil. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 8460.  7/31/2011. 		RM 
_________________________________________________________________________

566.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: Charles M. Russell National Wildlife Refuge: Cut Throat Coulee at terminus of Refuge Road 325, ca 4.5 air mi N of Bonetrail Boat Ramp, ca 44 air mi WSW of Fort Peck; ca 43 air mi SW of Glasgow.  Elev. 2720-2920 ft.
T23N R35E S20 South1/2; also S19 SE1/2.  47.7396 N, 107.2542 W to 47.7386 N, 107.2674 W; NAD 83, GPS reading.  
Grasslands with scattered ponderosa pine and juniper on sandy soil. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 8624.  8/2/2011. 		RM 
_________________________________________________________________________

567.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Valley County: Glasgow Base Ponds, W of Mont Hwy 24, ca 4.5 air mi W of Porcupine Creek, ca 3.5 air mi NW of St. Marie; ca 18 air mi N of Glasgow.  Elev. 2720-2740 ft.
T31N R39E S18 NE1/4.  48.4481 N, 106.5791 W; NAD 83, GPS reading.  
Moist grasslands surrounding pond with willows, Russian olive, and snowberry thickets. Phenology: flowering. 

Joseph L. M. Charboneau, 8768.  8/4/2011. 		RM 
_________________________________________________________________________

568.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Phillips County: Little Rocky Mountains: NE of Silver Peak, ca 2 air mi ENE of Sugar Loaf Butte, ca 2.5 air mi E of Landusky; ca 47 air mi SW of Malta.  Elev. 4470-4760 ft.
T25N R24E S25 NE1/4; also S24 SE1/4.  47.8978 N, 108.5697 W to 47.8999 N, 108.5729 W; NAD 83, GPS reading.  
Open south-facing slopes with ponderosa pine and juniper. Phenology: flowering & fruiting. 

Joseph L. M. Charboneau, 9126.  8/6/2011. 		RM 
_________________________________________________________________________

569.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Grand County: Blue Valley Ranch.  Elev. 7854 ft.
Zone 13N, 382493E, 4422658N.  
Sagebrush and rabbitbrush community in mountain swale with east aspect. Phenology: flowering. 

Cynthia Villa, 1031.  7/19/2003. 		RM 908349
_________________________________________________________________________

570.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Las Animas County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Bar NI (Cabot) Ranch: ca 1 mi S of Monument Lake.  Elev. 8800 ft.
37.2042 N, 105.05 W.  
Pinus ponderosa, Quercus gambellii. Phenology: flowering. 

Brian Elliott, 9993.  7/28/1999. 		RM 831054
     with Elizabeth Mark and Pete Schneider
_________________________________________________________________________

571.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Pueblo County: Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: Squirrel Creek from trailhead to branch to Pueblo Mountain Park.  Elev. 6600-7600 ft.
T23S R68W S9 SW1/4; also South1/4 S8 and N1/2 S18.  38.0643 N, 104.9991 W.  
Wooded stream bottom. Phenology: flowering. 

Ronald L. Hartman, 65000.  7/7/1999. 		RM 832008
     with Fengjie Sun
_________________________________________________________________________

572.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Rosebud County: Custer National Forest: Ashland Ranger District: in and around Sawmill Gulch near Jackson Sawmill Spring, ca 1.5 air mi of Poker Jim Butte Lookout and ca 20.5 air mi SSW of Ashland.  Elev. 3840-4050 ft.
T6S R44E S20 NE1/4; also NW1/4 S21.  45.3056 N, 106.358 W; NAD 83, , GPS reading.  
Sandy hillside above gulch. Phenology: flowering. 

Hans Hallman, 758.  6/20/2009. 		USFS 885663	Barcode: USFS0053252
_________________________________________________________________________

573.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Fairfield Hill.  Elev. 8400 ft.
T32N R101W S15.  
South-facing slopes. Phenology: flowering & fruiting. 

Richard W. Scott, 8164.  6/14/1992. 		RM 616116	Barcode: RM0045013
_________________________________________________________________________

574.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Absaroka Mountains: North Fork Shoshone River Drainage: along Sweetwater Creek Road, ca 1-2 mi N of U.S. Hwy 14.  Elev. 6100 ft.
T52N R106W S17; also S5.  44.4763 N, 109.6442 W; uncertainty 3 mi..  
Phenology: fruiting. 

Erwin F. Evert, 4709.  8/8/1982. 		RM 357362	Barcode: RM0045017
_________________________________________________________________________

575.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Shoshone National Forest: Crandall Road, Dead Indian Creek.  Elev. 7000 ft.
Rocky limestone soil. Phenology: flowering. 

Edward D. Pearson, 196.  8/23/1924. 		RM 104450	Barcode: RM0045016
     with Dorothy Pearson
_________________________________________________________________________

576.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Near Fort Stambaugh.  Elev. 7840 ft.
T29N R99W S8.  
Roadsides. Phenology: flowering. 

Richard W. Scott, 8235.  6/13/1992. 		RM 616108	Barcode: RM0045014
_________________________________________________________________________

577.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Montana, Beaverhead County: Blacktail Mountains: Weston Canyon, ca 11-12 air mi S of Dillon, ca 1-4 air mi N of Ashbough Peak.  Elev. 7840-7860 ft.
T9S R8W S21 SW1/4.  45.0317 N, 112.5991 W to 45.0326 N, 112.596 W; NAD 83, , GPS reading.  
Dry, rocky, southerly-facing slopes in an opening of a mixed coniferous forest. Phenology: flowering & fruiting. 

Emma E. Freeland, 6903.  7/15/2013. 		RM 
_________________________________________________________________________

578.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Weston County: Newcastle.  Elev. 4250-4500 ft.
T45N R61W S29.  43.8517 N, 104.2086 W; uncertainty 3 mi..  
Western foothills; Cercocarpus associaton; xero-mesophytic. Phenology: flowering & fruiting. 

Herman E. Hayward, 2010.  7/9/1927. 		RM 111322
_________________________________________________________________________

579.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Inyan Kara Creek, 17 mi S of Sundance.  Elev. 5220 ft.
T49N R62W S26.  44.1979 N, 104.2644 W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!.  
Foothills; grass association; xerophytic. Phenology: flowering. 

Herman E. Hayward, 2138.  7/14/1927. 		RM 111322
_________________________________________________________________________

580.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Canyon below Guernsey Dam.  Elev. 4400 ft.
42 16.8' N, 104 45.3' W; unknown, , GPS reading.  
Rocky slope, with Yucca and Opuntia. Flowers lavender; plants 1 m high. Phenology: flowering. 

Robert D. Dorn, 11146.  6/12/2014. 		RM 921609	Barcode: RM0079677
_________________________________________________________________________

581.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Ca 20 mi NW of Wheatland.  Elev. 5700 ft.
42 17.4' N, 105 15' W; unknown, , GPS reading.  
Grassland, with Hesperostipa comata and Artemisia. Flowers lavender. Phenology: flowering. 

Robert D. Dorn, 11177.  6/19/2014. 		RM 921560	Barcode: RM0079730
_________________________________________________________________________

582.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Niobrara County: Ca 14 mi E of Lance Creek.  Elev. 4300 ft.
43 2.8' N, 104 22.3' W; unknown, , GPS reading.  
Highway right of way, with Elymus and Bromus. Flowers purple. Phenology: flowering & fruiting. 

Robert D. Dorn, 11236.  6/30/2014. 		RM 921209	Barcode: RM0079338
_________________________________________________________________________

583.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Crook County: Devils Tower National Monument, summit of Devils Tower.  Elev. 5100 ft.
T53N R65W S7 SW 1/4.  zone 13, 522597E, 4937467N; WGS 84, GPS reading.  
South-southwest aspect; with Koeleria macrantha. Occasional. Phenology: flowering & fruiting. 

Cheryl Mayer, 1619.  7/1/2016. 		RM 963821	Barcode: RM0100832
     with Andrew Lyons-Gould
_________________________________________________________________________

584.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., South Dakota, Custer County: Ca 23 mi W of Custer.  Elev. 4700 ft.
43 43.9' N, 104 0.9' W; unknown, , Specimen Label.  
Rocky roadside with Bromus, Achillea. Flower lavender. Phenology: flowering & fruiting. 

Robert D. Dorn, 11919.  6/23/2017. 		RM 940052	Barcode: RM0112393
_________________________________________________________________________

585.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Camp Guernsey: Osburn Ranch parcel; north end of transect ca 9.9 km NW of Range Control, ca 4.2 km NE of North Platte River.  Elev. 1537 m.
510588E, 4695731N to 510829E, 4695286N; unknown, GPS reading.  
South-facing slope; mixed sagebrush grassland; silty loam;  with Artemisia nova, A. tridentata, Bromus japonicus, Hesperostipa comata, Nassella viridula, Pascopyrum smithii. Scattered; erect, perennial herb; 4 dm tall; corolla pale lavender. Phenology: flowering. 

Nancy E. Hastings, 299.  7/3/2007. 		RM 961501	Barcode: RM0219440
     with P. Block
_________________________________________________________________________

586.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Platte County: Camp Guernsey: Walsh Ranch parcel in Deadhorse Canyon; east end of transect ca 1.5 km SW of Range Guard 4, ca 7.6 km NE of Guernsey Reservoir.  Elev. 1524 m.
522270E, 4690694N to 522373E, 4690671N; unknown, GPS reading.  
Level; intermittent stream drainage recovering from fire; silty loam with cobbles; with Symphoricarpos occidentalis, Toxicodendron rydbergii, Silene antirrhinum, Tragopogon dubius, Descurainia pinnata, Ellisia nyctelea, Bromus tectorum, Poa pratensis. Local; erect, perennial herb; 3 dm tall. Phenology: flowering. 

Nancy E. Hastings, 105.  5/22/2007. 		RM 961502	Barcode: RM0219441
     with P. Block
_________________________________________________________________________

587.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, no county County: Black Thunder Strip Mining area: North Prong of Thunder Creek and Little Thunder Creek.  Elev. 4800 ft.
T42N R70W S2 NE1/4 NE1/4.  
Breaks; with big sagebrush, blue grama, western wheatgrass; shallow clay, shale, and loamy soil; Shingle soil series. Phenology: flowering & fruiting. 

R. E. Ries, 61.  8/21/1973. 		RM 293403	Barcode: RM0283062
     with D. W. Sabinske
_________________________________________________________________________

588.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: Near Ft. Washakie Indian School.  Elev. 5517 ft.
Phenology: flowering. 

Edith V. A. Murphey, 35.  7/15/1942. 		RM 195635	Barcode: RM0283057
_________________________________________________________________________

589.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Yellowstone National Park: Mammoth Hot Springs.  Elev. 6300-6800 ft.
T58N R115W S36.  44.9649 N, 110.7153 W; uncertainty 3 mi..  
On dry, open ground. Phenology: flowering. 

Aven Nelson, 6027.  7/20/1899. 		RM 19934	Barcode: RM0283046
     with Elias Nelson
_________________________________________________________________________

590.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Big Horn County: Eastern Slope Big Horn Mountains.
High, rocky slopes. Phenology: flowering. 

Leslie N. Goodding, 278.  7/18/1901. 		RM 37174	Barcode: RM0283038
_________________________________________________________________________

591.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Park County: Yellowstone National Park: Mammoth Hot Springs.  Elev. 6300-6800 ft.
T58N R115W S36.  44.9649 N, 110.7153 W; uncertainty 3 mi..  
Common. Phenology: flowering. 

Aven Nelson, 6028.  7/20/1899. 		RM 19933	Barcode: RM0283037
     with Elias Nelson
_________________________________________________________________________

592.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Washakie County: 13 mi NE of Ten Sleep, U.S. Hwy 16.
South-facing hillside. 2 plants seen. Phenology: flowering. 

Gerald B. Ownbey, 3036.  8/16/1961. 		RM 287755	Barcode: RM0283036
     with Findley Ownbey
_________________________________________________________________________

593.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Lincoln County: Salt River Range: Murphy Creek ca 0.3 mi W of oil well site, ca 20 air mi N of Afton.  Elev. 8350 ft.
T35N R118W S22.  43.0032 N, 110.9049 W; uncertainty 1 mi..  
Growing on unstable shale-rocky-clay soil on westerly slope with Crepis intermedia. Flowers light lavender-whitish. Phenology: flowering. 

Orval C. Harrison, 416.  8/2/1986. 		RM 394664	Barcode: RM0283031
_________________________________________________________________________

594.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Hanna Creek.
T54N R84W S8.  44.6719 N, 106.9917 W; uncertainty 9+ mi..  
Grassy pastures and meadows. Phenology: flowering. 

Vie Willits, 195.  6/28/1909. 		RM 68901	Barcode: RM0282869
_________________________________________________________________________

595.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Fremont County: U.S. Hwy 287-Wyo Hwy 789, ca 5 mi E of junction with Wyo Hwy 28.  Elev. 6500 ft.
Along roadside. Phenology: flowering & fruiting. 

Robert C. Gardner, 213.  8/17/1971. 		RM 293091	Barcode: RM0282865
_________________________________________________________________________

596.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: Between Sheridan and Buffalo.  Elev. 3500-5000 ft.
T52N R83W S24.  44.4634 N, 106.7841 W; uncertainty 9+ mi..  
Rolling plains. Phenology: flowering. 

Frank Tweedy, 3049.  6/15/1900. 		RM 38450	Barcode: RM0282863
_________________________________________________________________________

597.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sweetwater County: Big Horn Range: Tensleep Canyon.  Elev. 6000 ft.
T48N R87W S26.  44.0951 N, 107.2867 W; NAD 83, uncertainty 1 mi., Digital Map.  
Common roadside weed; stems single or few together, not rhizomatous; flowers lavender. Phenology: flowering. 

C. L. Porter, 8252.  6/28/1960. 		RM 262980	Barcode: RM0283118
     with Marjorie W. Porter
_________________________________________________________________________

598.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Sheridan County: U.S. Hwy 14, 22 mi NW of Ucross.  Elev. 4000 ft.
Along roadside. Chemical voucher. Phenology: vegetative only. 

Robert C. Gardner, 139.  7/7/1971. 		RM 293113	Barcode: RM0283117
_________________________________________________________________________

599.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County:   Elev. 4300 ft.
T51N R72W S14.  44.4045 N, 105.4797 W; uncertainty 1 mi..  
Grassy plains. Phenology: flowering & fruiting. 

Mary Alice Sanguinetti, 111.  7/7/1978. 		RM 324209	Barcode: RM0283104
     with Keith H. Dueholm
_________________________________________________________________________

600.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Washakie County: U.S. Hwy 16, ca 25 mi E of Ten Sleep in Tensleep Canyon.  Elev. 8700 ft.
Along roadside. Chemical voucher; 2n = 26. Phenology: flowering & fruiting. 

Robert C. Gardner, 130.  7/7/1971. 		RM 293116	Barcode: RM0283088
_________________________________________________________________________

601.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County:   Elev. 4300 ft.
T51N R72W S14.  44.4045 N, 105.4797 W; uncertainty 1 mi..  
Grassy plains. Phenology: flowering & fruiting. 

Mary Alice Sanguinetti, 110.  7/7/1978. 		RM 324349	Barcode: RM0283080
     with Keith H. Dueholm
_________________________________________________________________________

602.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Uinta County: Evanston.
Weed. Phenology: flowering. 

Albert Mylroie, 3.  7//1938. 		RM 173000	Barcode: RM0283078
_________________________________________________________________________

603.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Washakie County: U.S. Hwy 16, ca 25 mi E of Ten Sleep in Tensleep Canyon.  Elev. 8700 ft.
Along roadside. Chemical voucher; 2n = 26. Phenology: vegetative only. 

Robert C. Gardner, 130.  7/7/1971. 		RM 293117	Barcode: RM0283075
_________________________________________________________________________

604.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County:   Elev. 4100 ft.
T53N R72W S30.  44.541 N, 105.562 W; uncertainty 1 mi..  
Grassy hills. Phenology: flowering & fruiting. 

Mary Alice Sanguinetti, 93.  7/6/1978. 		RM 324360	Barcode: RM0283070
     with Keith H. Dueholm
_________________________________________________________________________

605.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County:   Elev. 3900 ft.
T56N R72W S35.  44.7908 N, 105.481 W; uncertainty 1 mi..  
Hills with grass, pine, and juniper. Phenology: flowering. 

Mary Alice Sanguinetti, 221.  7/8/1978. 		RM 324347	Barcode: RM0283068
     with Keith H. Dueholm
_________________________________________________________________________

606.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Wyoming, Campbell County:   Elev. 4100 ft.
T56N R73W S29; also S32.  44.7173 N, 105.6633 W; uncertainty 2 mi..  
Very dry grassy plains. Phenology: flowering. 

Mary Alice Sanguinetti, 270.  7/10/1978. 		RM 324352	Barcode: RM0283064
     with Keith H. Dueholm
_________________________________________________________________________

607.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: Tarryall Mountains: off Forest Road 207, on the banks and slopes above the South Platte River, ca 1/2 road mi N of USFS Happy Meadows Campground; ca 2-1/2 air mi N of town of Lake George.  Elev. 8800-9125 ft.
T12S R71W S8 NW1/4.  39.0202 N, 105.36 W; uncertainty 1 mi..  
Open field adjacent to the river. Phenology: flowering & fruiting. 

Timothy W. Chumley, 1212.  6/28/1995. 		 
_________________________________________________________________________

608.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Parkdale Recreation Area off U.S. Hwy 50 along the south bank of the Arkansas River, ca 11.4 air mi WNW of Canon City.  Elev. 5750-5780 ft.
T18S R72W S13 N1/2.  38.4832 N, 105.3931 W; uncertainty 1 mi..  
Weedy, disturbed site along the river, with alluvial gravels and thin, poor soils. Phenology: flowering. 

Timothy W. Chumley, 1253.  6/30/1995. 		 
_________________________________________________________________________

609.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: South Park: along the southeastern shore of Antero Reservoir and adjacent hills, ca 4 air mi NE of Antero Junction; ca 6.5 air mi SW of Hartsel.  Elev. 8940-9200 ft.
T12S R76W S33 N1/2; also SE1/4 S28 and NE1/4 S32.  38.9633 N, 105.8933 W; uncertainty 1 mi..  
Roadside in broad, grassy flats beside the lake. Phenology: flowering & fruiting. 

Timothy W. Chumley, 1947.  7/18/1995. 		 
_________________________________________________________________________

610.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: along the north face of Little Crampton Mountain and W along Cottonwood Creek, ca 1.5 air mi W of Colo Hwy 9, ca 13.5 air mi WNW of Canon City.  Elev. 6800-7700 ft.
T17S R72W S16; also S15.  38.5688 N, 105.4488 W; uncertainty 1 mi..  
On the lower slopes of the mountain. Phenology: flowering. 

Timothy W. Chumley, 2423.  7/25/1995. 		 
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611.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Park County: East-central Colorado: Mosquito Range to Plains: Tarryall Mountains: from a seep at intersection of Forest Road 211 and Forest Road 540 to Corral Creek and surrounding uplands, ca 10 air mi N of town of Lake George.  Elev. 7200-8539 ft.
T11S R71W S5 N1/2; also NW1/4 S4.  39.1215 N, 105.36 W; uncertainty 1 mi..  
In a grassy lowland along the stream in ponderosa pine. Phenology: flowering. 

Timothy W. Chumley, 2809.  8/6/1995. 		 
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612.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Douglas County: East-central Colorado: Mosquito Range to Plains: Rampart Range: along Fern Creek and surrounding uplands, approx 0.2 road mi from intersection with Forest Road 351 or Fern Creek Road, ca 12 air mi N of Woodland Park. EC1/4  Elev. 8000-9000 ft.
T10S R69W S23; S23; also S24 and S13.  39.1642 N, 105.0826 W; uncertainty 1 mi..  
Open grassy flats along the stream. Phenology: flowering. 

Timothy W. Chumley, 2852b.  8/8/1995. 		 
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613.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Nonans Peak above Tunnel Drive in uplands above the river, ca 3 air mi WSW of Canon City.  Elev. 5300-6900 ft.
T18S R70W S31 W1/2; also T18S R71W NE1/4 S36.  38.4409 N, 105.2617 W; uncertainty 1 mi..  
Rocky, granitic slopes above a steep drainage. Phenology: flowering. 

Timothy W. Chumley, 807.  6/16/1995. 		 
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614.  Cirsium undulatum (Nutt.) Spreng. 				Asteraceae

U.S.A., Colorado, Fremont County: East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Twin Mountain off U.S. Hwy 50, ca 5.6 air mi NW of Canon City; ca 2 road mi from turnoff to Royal Gorge.  Elev. 6200-6800 ft.
T18S R71W S11 NW1/4; also SE1/4 S2.  38.4974 N, 105.3004 W; uncertainty 1 mi..  
Along road in open grass. Phenology: flowering. 

Timothy W. Chumley, 859.  6/16/1995. 		 
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