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

Database Search Results

394 matching records found (of 394).
Search query: Genus begins with Cirsium, Species begins with clavatum, (search polygon not defined)
Sorted by: Scientific Name

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1.  Cirsium clavatum (M. E. Jones) Petr. 				Asteraceae

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: on Snodgrass Mountain, ca 2 air mi SSE of Gothic.  Elev. 9800-10200 ft.
T13S R86W S14 N1/2.  38.92 N, 106.9712 W.  
Aspen forest, open meadow, and along ponds, creeks, and seeps. Phenology: flowering & fruiting. 

Kevin J. Taylor, 4378.  8/8/1997. 		 720292
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2.  Cirsium clavatum (M. E. Jones) Petr. 				Asteraceae

U.S.A., Colorado, Gunnison County: Northern Gunnison Basin: ca 4 air mi NE of Pitkin.  Elev. 10100-10350 ft.
T51N R4E S25 SE1/4.  
Lodgepole pine, Engelmann spruce forest; common juniper and Vaccinium. Phenology: flowering & fruiting. 

Kevin J. Taylor, 4582.  8/15/1997. 		 720291
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3.  Cirsium clavatum (M. E. Jones) Petr. 				Asteraceae

U.S.A., Colorado, Larimer County: Roosevelt National Forest: Front Range:Comanche Peak Wilderness: Cache la Poudre River on Big South Trail off Colo Hwy 14, ca 34 air mi W of Fort Collins.  Elev. 8600-8800 ft.
T8N R75W S34 W1/2.  40.6257 N, 105.8009 W; uncertainty 1 mi..  
Douglas fir and aspen canopy along river with Arctostaphylos and some rock piles and overhangs. Phenology: flowering. 

Sarah Nunn, 4400.  8/9/2001. 		RM 765221
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4.  Cirsium clavatum (M. E. Jones) Petr. 				Asteraceae

U.S.A., Colorado, Mesa County: Grand Mesa: Mesa Lakes.  Elev. 9600 ft.
Open aspen and spruce-fir forest. Phenology: fruiting. 

C. L. Porter, 6537.  7/14/1954. 		RM 241732
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5.  Cirsium clavatum (M. E. Jones) Petr. 				Asteraceae

U.S.A., Colorado, Garfield County: White River National Forest: 2 mi N of West Ranger Station.  Elev. 7400 ft.
T4S R92W S24.  39.6878 N, 107.6632 W; uncertainty 1 mi..  
40 degree east slope, sandy loam, woodland; with Cornus, Symphorocarpus and Polemonium. Phenology: flowering & fruiting. 

E. R. Ware, 262.  7/15/1932. 		RM 475961
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6.  Cirsium clavatum (M. E. Jones) Petr. 				Asteraceae

U.S.A., Colorado, Grand County: Coulter Post Office.
T1N R76W S19; also S30.  
Phenology: flowering. 

George E. Osterhout, 3004.  7/12/1905. 		RM 161070
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7.  Cirsium clavatum (M. E. Jones) Petr. 				Asteraceae

U.S.A., Colorado, Grand County: Middle Park: Coulter Post Office.
T1N R76W S19; also S30.  40.0355 N, 105.9428 W; uncertainty 2 mi..  
Phenology: flowering & fruiting. 

George E. Osterhout, 3004.  7/12/1905. 		RM 51494
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8.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Archuleta County: Eastern San Juan Mountains: northeast end of Mesa Cortado, S of U.S. Hwy 84, ca 17.5-18 air mi SE of Pagosa Springs.  Elev. 7800-8300 ft.
T33N R1E S28 N1/2.  37.0727 N, 106.8505 W; GPS Reading.  
Aspen meadow at the head of a drainage. Phenology: flowering & fruiting. 

B. E. Nelson, 62635.  8/15/2004. 		RM 
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9.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Clear Creek County: Arapaho National Forest: Front Range: West Fork Clear Creek at Mizpah Campground, ca 12 air mi S of Fraser; ca 14 air mi WNW of Idaho Springs.  Elev. 9400-9600 ft.
T3S R75W S21 South1/2.  39.7762 N, 105.7923 W; GPS Reading.  
Along creek and in spruce forest. Phenology: flowering & fruiting. 

Erin Foley, 1190.  6/22/2003. 		RM 
     with Michael Foley
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10.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Vasquez Creek, ca 3 air mi SSE of Fraser, ca 6.5 air mi NNW of Berthoud Pass.  Elev. 9000 ft.
T2S R75W S5 N1/2.  39.9015 N, 105.8046 W; uncertainty 0.5 mi..  
Along creek, in spruce forest, and roadside. Phenology: flowering & fruiting. 

Erin Foley, 2105.  7/10/2003. 		RM 
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11.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Williams Fork Mountains: intermittent stream between Henderson Tunnel and Williams Fork, ca 6 air mi SW of Byers Peak, ca 13.5 air mi SW of Winter Park.  Elev. 9000-10140 ft.
T3S R77W S15 W1/2.  39.7838 N, 105.9991 W; uncertainty 0.5 mi..  
Along stream and river in spruce/lodgepole pine forest. Phenology: flowering & fruiting. 

Erin Foley, 2569.  7/17/2003. 		RM 
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12.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Meadow Creek Road, ca 28 air mi W of Boulder; ca 5.5 air mi N of Fraser.  Elev. 9000 ft.
T1N R75W S29 NE1/4.  40.0224 N, 105.8071 W; GPS Reading.  
Open aspen/lodgepole pine forest. Phenology: flowering & fruiting. 

Erin Foley, 2919.  7/19/2003. 		RM 
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13.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: S of Lake Granby along Doe Creek, ca 6.5 air mi ENE of Granby; ca 15.5 air mi NNW of Fraser.  Elev. 8480-8760 ft.
T2N R75W S19.  40.1098 N, 105.8289 W; GPS Reading.  
Along creek and in open meadow. Phenology: flowering & fruiting. 

Erin Foley, 3113.  7/21/2003. 		RM 
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14.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Monarch Lake, ca 10.5 air mi E of Granby; ca 12 air mi NE of Fraser.  Elev. 8400 ft.
T2N R75W S25.  40.108 N, 105.7415 W; uncertainty 0.5 mi..  
Lakeside, spruce/lodgepole pine/fir forest, and streamside. Phenology: flowering & fruiting. 

Erin Foley, 3137.  7/21/2003. 		RM 
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15.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Roosevelt National Forest: Front Range: Indian Peaks Wilderness: Saint Vrain Mountain Trail, ca 18 air mi NW of Boulder; ca 7 air mi NW of Ward.  Elev. 9600-11100 ft.
T2N R73W S3; also SW1/4 S4.  40.1695 N, 105.5588 W; uncertainty 1 mi..  
Lodgepole pine/spruce forest, subalpine, and streamside. Phenology: flowering & fruiting. 

Erin Foley, 3282.  7/23/2003. 		RM 
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16.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Roosevelt National Forest: Front Range: Indian Peaks Wilderness: Rainbow Lakes, ca 3.5-4 air mi NW of Nederland; ca 12.5 air mi NE of Fraser.  Elev. 10200 ft.
T1N R73W S33 NW1/4; also NE1/4 S32.  40.0132 N, 105.5828 W; GPS Reading.  
Lakeside and moist spruce/lodgepole pine/fir forest. Phenology: flowering & fruiting. 

Erin Foley, 3341.  7/23/2003. 		RM 
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17.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Kawuneeche Road, South Supply Creek, ca 3.5 air mi WNW of Grand Lake.  Elev. 9000 ft.
T4N R76W S34.  40.2617 N, 105.894 W; GPS Reading.  
Along creek, wet meadow, and regenerating lodgepole pine forest. Phenology: flowering & fruiting. 

Erin Foley, 3585.  7/27/2003. 		RM 
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18.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Indian Peaks Wilderness: Cascade Creek Trail, along Buchanan Creek, ca 1 mi E of Monarch Lake.  Elev. 8800 ft.
T2N R74W S29 N1/2.  40.1105 N, 105.7066 W; GPS Reading.  
Dry slopes. Phenology: flowering & fruiting. 

Erin Foley, 3969.  7/31/2003. 		RM 
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19.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Byers Peak Wilderness: Lake Evelyn Trail, ca 9.5 air mi WSW of Fraser.  Elev. 9800-11000 ft.
T2S R77W S11 South1/2; also N1/2 S14.  39.8862 N, 105.9722 W; GPS Reading.  
Along trail through mixed coniferous forest with intermittent streams and meadows. Phenology: flowering & fruiting. 

Erin Foley, 4261.  8/4/2003. 		RM 
     with Jill Torres
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20.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gilpin County: Arapaho National Forest: Front Range, tributary of North Clear Creek, ca 4 air mi WNW of Central City; ca 6.5 air mi NE of Empire.  Elev. 9800 ft.
T3S R73W S5 N1/2.  39.822 N, 105.585 W; GPS Reading.  
Along small stream through spruce forest and cleared meadows. Phenology: flowering & fruiting. 

Erin Foley, 4635.  8/10/2003. 		RM 
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21.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Williams Fork Mountains: Skylark Creek, ca 1.5 mi W of Mule Creek, ca 13.5 air mi SSW of Hot Sulphur Springs.  Elev. 8880-9600 ft.
T2S R79W S11 E1/2; also W1/2 S12.  39.885 N, 106.186 W; GPS Reading.  
Spruce/fir forest. Phenology: flowering & fruiting. 

Erin Foley, 4888.  8/14/2003. 		RM 
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22.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Never Summer Wilderness: Cascade Mountain, ca 10.5 air mi N of Granby.  Elev. 9680-11500 ft.
T4N R77W S1; 2.  40.3317 N, 105.9561 W; GPS Reading.  
Spruce/lodgepole pine/fir forest and clearings. Phenology: flowering & fruiting. 

Erin Foley, 5130.  8/16/2003. 		RM 
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23.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Rabbit Ears Range: Buffalo Creek, ca 15.5 air mi NW of Granby; ca 15 air mi NE of Parshall.  Elev. 8880 ft.
T4N R78W S34 SW1/4.  40.262 N, 106.1141 W; GPS Reading.  
In disturbed areas and along small creek tributary. Phenology: flowering & fruiting. 

Erin Foley, 5194.  8/16/2003. 		RM 
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24.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Williams Fork Mountains: South Fork Williams Fork Trail, ca 24 air mi SSE of Hot Sulphur Springs; ca 9.5 air mi NW of Loveland Pass.  Elev. 9800 ft.
T4S R77W S4; also S9.  39.7129 N, 106.0077 W; GPS Reading.  
Along river and adjacent spruce/fir forest. Phenology: flowering & fruiting. 

Erin Foley, 5456.  8/19/2003. 		RM 
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25.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Rabbit Ears Range: North Fork Cabin Creek along Cabin Creek Road, ca 3 mi W of Colo Hwy 125, ca 9 air mi N of Hot Sulphur Springs.  Elev. 8500 ft.
T3N R78W S23 South1/2; also N1/2 S26.  40.2021 N, 106.0912 W; GPS Reading.  
Along creek and roadside. Phenology: flowering & fruiting. 

Erin Foley, 5551.  8/26/2003. 		RM 
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26.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Rabbit Ears Range: 0.5 mi S of Willow Creek Pass along Pass Creek, ca 28.5 air mi SE of Walden.  Elev. 9500-9700 ft.
T4N R78W S2.  40.3444 N, 106.0963 W; GPS Reading.  
Along creek and in adjacent meadow and lodgepole pine forest. Phenology: flowering & fruiting. 

Erin Foley, 5655.  8/30/2003. 		RM 
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27.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Front Range: Arapaho Bay of Lake Granby, along Roaring Fork Creek, ca 9 air mi SE of Grand Lake.  Elev. 8320-8600 ft.
T2N R75W S14 SW1/4.  40.1295 N, 105.7642 W; GPS Reading.  
Roadside and lakeside. Phenology: flowering & fruiting. 

Erin Foley, 930.  6/20/2003. 		RM 
     with Michael Foley
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28.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Rabbit Ears Range: Black Mountain, ca 6 air mi NW of Parshall and ca 10.5 air mi NE of Kremmling.  Elev. 9200-9500 ft.
T2N R79W S14 N1/2.  40.1454 N, 106.2108 W; GPS Reading.  
Mountain slope. Phenology: flowering & fruiting. 

Erin Foley, 10358.  7/19/2004. 		RM 
     with Ronald L. Hartman
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29.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Rabbit Ears Range: Lindsey Creek to Grannys Nightcap, ca 18.5 air mi NNW of Kremmling and ca 23 air mi SE of Steamboat Springs.  Elev. 8720-9420 ft.
T4N R81W S10 E1/2.  40.3252 N, 106.4434 W to 40.3296 N, 106.4494 W; GPS Reading.  
Along creek. Phenology: flowering & fruiting. 

Erin Foley, 11352.  8/10/2004. 		RM 
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30.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Rabbit Ears Range: Lindsey Creek to Grannys Nightcap, ca 18.5 air mi NNW of Kremmling and ca 23 air mi SE of Steamboat Springs.  Elev. 8720-9420 ft.
T4N R81W S10 E1/2.  40.3252 N, 106.4434 W to 40.3296 N, 106.4494 W; GPS Reading.  
Along creek. Phenology: flowering & fruiting. 

Erin Foley, 11420.  8/10/2004. 		RM 
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31.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Vasquez Peak Wilderness: Vasquez Mountains: unnamed stream and junction with Vasquez Creek, ca 5 air mi SW of Winter Park and ca 7.5 air mi SSW of Fraser.  Elev. 9600-10900 ft.
T2S R76W S36; also R75W S30 S1/2 and N1/2 S31.  39.8463 N, 105.8237 W to 39.8305 N, 105.8447 W; GPS Reading.  
Along stream. Phenology: flowering & fruiting. 

Erin Foley, 11438.  8/12/2004. 		RM 
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32.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Gore Range: off BLM Road 2750 near Dice Hill and Sheephorn Mountain, ca 5.5 air mi E of Radium and ca 9.5 air mi NW of Heeney.  Elev. 9120-9600 ft.
T1S R81W S27; also E1/2 S28.  39.9474 N, 106.4393 W to 40.2385 N, 105.8019 W; GPS Reading.  
Mixed conifer stand. Phenology: flowering & fruiting. 

Erin Foley, 12013.  8/21/2004. 		RM 
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33.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Indian Peaks Wilderness: Front Range: Buchanan Creek, ca 15 air mi ENE of Granby and ca 9 air mi WNW of Ward.  Elev. 9400-10200 ft.
T2N R74W S21 N1/2; also NW1/4 S22 and SW1/4 S15.  40.1226 N, 105.6775 W to 40.1291 N, 105.673 W; GPS Reading.  
Along Creek Phenology: flowering & fruiting. 

Erin Foley, 12085.  8/25/2004. 		RM 
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34.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Middle Park: just S of Hot Sulphur Springs State Wildlife Area and just N of Little Muddy, ca 3.5 air mi SSW of Hot Sulphur Springs and 11 air mi SW of Granby.  Elev. 8000-8450 ft.
T1N R78W S27 E1/2.  40.0218 N, 106.1089 W to 40.0223 N, 106.114 W; GPS Reading.  
Moist aspen grove. Phenology: flowering & fruiting. 

Erin Foley, 7303.  6/10/2004. 		RM 
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35.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Rabbit Ears Range: tributary of Willow Creek, ca 9.5 air mi NW of Granby and ca 9.5 air mi SE of Willow Creek Pass.  Elev. 8400-8640 ft.
T3N R77W S21 SW1/4; also SE1/4 S20.  40.2001 N, 106.0348 W to 40.2032 N, 106.0292 W; GPS Reading.  
Moist disturbed area. Phenology: flowering & fruiting. 

Erin Foley, 8698.  6/28/2004. 		RM 
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36.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Recreation Area: Willow Creek Reservoir, ca 4 air mi NW of Granby and ca 11 air mi SW of Grand Lake.  Elev. 8200 ft.
T2N R77W S12 SE1/4.  40.1446 N, 105.9565 W; GPS Reading.  
Moist aspen stand. Phenology: flowering & fruiting. 

Erin Foley, 8807.  7/1/2004. 		RM 
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37.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Middle Park: Parshall Divide, ca 1.5 air mi WSW of Hot Sulphur Springs and ca 2.5 air mi ENE of Parshall.  Elev. 8240-8400 ft.
T1N R78W S9.  40.0659 N, 106.1315 W; GPS Reading.  
Roadside through Douglas fir. Phenology: flowering & fruiting. 

Erin Foley, 8966.  7/1/2004. 		RM 
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38.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest: Middle Park: just S of U.S. Hwy 40, ca 4 air mi WNW of Granby and ca 5.5 air mi NE of Hot Sulphur Springs.  Elev. 7800-8080 ft.
T2N R77W S26 SW1/4; also E1/2 S27.  40.1031 N, 105.9934 W to 40.1 N, 105.9911 W; GPS Reading.  
Lodgepole pine slope. Phenology: flowering & fruiting. 

Erin Foley, 9220.  7/5/2004. 		RM 
_________________________________________________________________________

39.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Middle Park: Round Creek, ca 11.5 air mi NE of Kremmling and ca 13.8 air mi NW of Hot Sulphur Springs.  Elev. 8680-9120 ft.
T3N R79W S19; also N1/2 S30.  40.1995 N, 106.2801 W to 40.2106 N, 106.2778 W; GPS Reading.  
Disturbed sagebrush meadow. Phenology: flowering & fruiting. 

Erin Foley, 9671.  7/10/2004. 		RM 
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40.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Gore Range: Inspiration Point, ca 6.5 air mi SW of Kremmling and ca 5.5 air mi NE of Radium.  Elev. 7360-7900 ft.
T1S R81W S5; also T1N R81W S33 SW1/4.  39.9968 N, 106.4774 W to 40.0038 N, 106.484 W; GPS Reading.  
Disturbed area through mixed coniferous woodland. Phenology: flowering & fruiting. 

Erin Foley, 9760.  7/12/2004. 		RM 
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41.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Rabbit Ears Range: Troublesome Wilderness: Rabbit Ears Creek, ca 12.5 air mi SW of Rand and ca 17.5 air mi NE of Kremmling.  Elev. 9160-9400 ft.
T4N R80W S28 E1/2.  40.2845 N, 106.355 W to 40.275 N, 106.3465 W; GPS Reading.  
Disturbed opening adjacent to spruce stand. Phenology: flowering & fruiting. 

Erin Foley, 9984.  7/14/2004. 		RM 
_________________________________________________________________________

42.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Lake County: Central Colorado: Sawatch Range, East Slope Continental Divide: off Forest Road 109, ca 2.5 air mi N of Leadville.  Elev. 10800-11000 ft.
T9S R80W S2.  39.2962 N, 106.302 W.  
Mixed forest (Pinus contorta and Picea engelmannii). Phenology: flowering & fruiting. 

Emily A. Holt, 2822.  7/28/2000. 		 
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43.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Central Colorado: Sawatch Range, West Slope Continental Divide: below Mount Jackson, along Lake Creek Forest Service Trail 1880, ca 11 air mi S of Edwards.  Elev. 10200-11000 ft.
T6S R82W S33; also S34.  39.4841 N, 106.5612 W.  
Open spruce-fir forest and boulder field. Phenology: flowering & fruiting. 

Emily A. Holt, 3273.  8/6/2000. 		 
     with Brain Elliott
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44.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Central Colorado: Sawatch Range, West Slope Continental Divide: along East Lake Creek, ca 8 air mi SSW of Avon.  Elev. 9600-10200 ft.
T6S R82W S9; also S16, S21; also S28.  39.5419 N, 106.5612 W.  
Spruce-fir forest. Phenology: flowering & fruiting. 

Emily A. Holt, 3336.  8/6/2000. 		 
     with Brian Elliott
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45.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Central Colorado: Sawatch Range, West Slope Continental Divide: along East Lake Creek Trail 1880, ca 5 air mi S of Edwards.  Elev. 8200-9400 ft.
T6S R82W S4; also T5S R82W S32 and S33.  39.5563 N, 106.5612 W.  
Aspen woodland. Phenology: flowering & fruiting. 

Emily A. Holt, 3471.  8/6/2000. 		 
     with Brian Elliott
_________________________________________________________________________

46.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Central Colorado: Sawatch Range, West Slope Continental Divide: along Reudi Trail at west end of reservoir, to second powerline crossing from trailhead, ca 11.5 air mi E of Basalt.  Elev. 8000-8600 ft.
T8S R84W S7.  39.3724 N, 106.8133 W.  
Dense aspen woodland with interspersed lodgepole. Phenology: flowering. 

Emily A. Holt, 6970.  7/18/2001. 		RM 
_________________________________________________________________________

47.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Central Colorado: Gore Range, West Slope Continental Divide: along Gore Creek Trail 2015, from Wilderness sign E ca 2.5 mi, ca 7 air mi E of Vail.  Elev. 9000-10000 ft.
T5S R79W S8; also S9 and S10.  39.6312 N, 106.2589 W.  
Mixed forest with aspen, lodgepole, spruce-fir and Douglas Fir. Phenology: flowering & fruiting. 

Emily A. Holt, 7873.  8/14/2001. 		RM 
_________________________________________________________________________

48.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: Routt National Forest: ca 2 air mi SSE of Lynx Pass on Morrison Creek Road, ca 13 air mi ESE of Yampa; ca 29 air mi SSE of Steamboat Springs.  Elev. 8800-9200 ft.
T1N R83W S2; also S3.  40.0833 N, 106.6674 W; uncertainty 2 mi..  
Moist swale in lodgepole pine-aspen forest. 

B. E. Nelson, 17362.  7/31/1989. 		RM 570089
     with Steven Nelson
_________________________________________________________________________

49.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: Routt National Forest: Lone Spring Butte, ca 5.5 air mi ESE of Yampa, ca 24 air mi SSE of Steamboat Springs.  Elev. 10200 ft.
T2N R84W S21.  40.1275 N, 106.8205 W.  
In opening in mostly subalpine fir forest. 

B. E. Nelson, 17444.  8/1/1989. 		RM 570090
     with Steven Nelson
_________________________________________________________________________

50.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: Routt National Forest: N of head of Newcomer Creek, ca 7 air mi SE of Yampa, ca 27 air mi S of Steamboat Springs.  Elev. 9000 ft.
T2N R84W S34.  40.098 N, 106.8014 W.  
Aspen grove. 

B. E. Nelson, 17540.  8/1/1989. 		RM 570077
     with Steven Nelson
_________________________________________________________________________

51.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: Routt National Forest: Along Service Creek ca 3 air mi above the Yampa River, ca 15 air mi SSE of Steamboat Springs.  Elev. 7900-8300 ft.
T4N R84W S36.  40.2748 N, 106.7631 W.  
Aspen forest bracken understory. Approaching var. clavatum Phenology: flowering & fruiting. 

B. E. Nelson, 17619.  8/3/1989. 		RM 570078
     with Steven Nelson
_________________________________________________________________________

52.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: Routt National Forest: Ridge between Soda and Butcherknife Creeks, ca 3 air mi NNE of Steamboat Springs.  Elev. 7600 ft.
T7N R84W S28.  40.536 N, 106.8164 W.  
Aspen-oak woods. 

B. E. Nelson, 17796.  8/6/1989. 		RM 570080
     with Michelle Nelson
_________________________________________________________________________

53.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: Routt National Forest: Above Volcano Siding ca 2 air mi SW of Long Park, ca 13.5 air mi SE of Yampa, ca 33 air mi S of Steamboat Springs.  Elev. 8800-9000 ft.
T1N R83W S32.  40.0096 N, 106.7248 W.  
Brushy aspen woods. 

B. E. Nelson, 18097.  8/10/1989. 		RM 570079
     with Michelle Nelson
_________________________________________________________________________

54.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: Sierra MadreRange: Park Range: ca 2 air mi N of Red Elephant Mountain.  Elev. 9100-9400 ft.
T11N R82W S17; also S18, S19; also S20.  40.9229 N, 106.6288 W.  
Dry open areas under lodgepole pine and spruce. Approaching var. clavatum Phenology: flowering & fruiting. 

Nancy Kastning, 1294.  8/16/1988. 		RM 570082
_________________________________________________________________________

55.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: Sierra MadreRange: Park Range: ca 6.5 air mi SSE of Mount Ethel.  Elev. 8750 ft.
T17N R82W S20; also S21.  
Aspen forests. 

Nancy Kastning, 1308.  8/18/1988. 		RM 570081
     with Sunny and Joel Kastning
_________________________________________________________________________

56.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: Sierra MadreRange: Park Range: ca 20 air mi WSW of Walden in the Rainbow Lake area.  Elev. 9400-9800 ft.
T8N R82W S20; also S21.  40.648 N, 106.6256 W.  
Lodgepole pine-aspen mixed area. 

Nancy Kastning, 2538.  7/26/1989. 		RM 570083
_________________________________________________________________________

57.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: vicinity of Mad Creek Trail, ca 7 air mi NNW of Steamboat Springs.  Elev. 6900-8300 ft.
T7N R85W S12; also S1.  40.5791 N, 106.8732 W.  
Edge of creek. 

Neil Snow, 4868.  8/3/1989. 		RM 570084
_________________________________________________________________________

58.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Sierra MadreRange: Park Range: west shoulder of Hahns Peak.  Elev. 9000-10839 ft.
T7N R85W S8; also S9.  40.5791 N, 106.9489 W.  
Spruce-fir-Pseudotsuga forest and adjacent meadows. 

Neil Snow, 4924.  8/4/1989. 		RM 570085
_________________________________________________________________________

59.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Sierra MadreRange: Park Range: Dumont Lake Picnic Area, ca 12 air mi SE of Steamboat Springs.  Elev. 9200 ft.
T5N R82W S8.  40.4068 N, 106.6252 W.  
Meadows and disturbed areas. 

Neil Snow, 5168.  8/4/1989. 		RM 570086
_________________________________________________________________________

60.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: Sierra MadreRange: Park Range: near junction of Forest Roads 600 and 689, ca 0.5 mi N of Big Creek Lake, ca 22 air mi NW of Walden; along South Fork Big Creek.  Elev. 8900 ft.
T11N R82W S9 NE1/4.  40.9374 N, 106.6098 W.  
Forest near creek. 

Neil Snow, 5405.  8/6/1989. 		RM 570087
_________________________________________________________________________

61.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: Sierra MadreRange: Park Range: along Forest Road 600, ca 25 air mi NW of Walden.  Elev. 9000 ft.
T12N R82W S35; SE1 S35.  40.9665 N, 106.5717 W.  
Roadside. 

Neil Snow, 5434.  8/6/1989. 		RM 570088
_________________________________________________________________________

62.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: along tributary of North Fork Big Creek SSE of Bear Mountain, ca 13.5 air mi SE of Encampment.  Elev. 8800 ft.
T13N R82W S32.  41.0519 N, 106.6342 W.  
Stony sagebrush slope in lodgepole pine forest. Phenology: flowering & fruiting. 

B. E. Nelson, 16153.  6/30/1988. 		RM 569631
_________________________________________________________________________

63.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: ca 9 mi NNW of Blackhall Mountain, along the Encampment River.  Elev. 8000-8200 ft.
T13N R84W S1; also T14N R84W S36.  41.1248 N, 106.7867 W; uncertainty 2 mi..  
Fir-pine. Phenology: flowering. 

Nancy Kastning, 1015.  8/6/1988. 		RM 569628	Barcode: RM0280738
     with David Culp
_________________________________________________________________________

64.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: Singer Peak.  Elev. 8600 ft.
T14N R87W S9; also S10.  41.2 N, 107.1844 W; uncertainty 2 mi..  
Dry open areas in aspen, lodgepole. Phenology: flowering. 

Nancy Kastning, 1115.  8/13/1988. 		RM 569629	Barcode: RM0280748
_________________________________________________________________________

65.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: ca 8 air mi SSE of Miller Hill.  Elev. 7650 ft.
T17N R88W S35.  41.4034 N, 107.2714 W; uncertainty 1 mi..  
Ridgesides with sagebrush and mountain mahogany grading to scrub aspen. Phenology: flowering. 

Nancy Kastning, 255.  6/28/1988. 		RM 569625	Barcode: RM0280732
     with Lee Huston and Sunny Kastning
_________________________________________________________________________

66.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: ca 3 air mi ENE of Battle Mountain, E of Battle Creek.  Elev. 7150 ft.
T13N R87W S31; also S32.  41.055 N, 107.2213 W; uncertainty 2 mi..  
Sagebrush-grassland slopes east of Battle Creek. Phenology: flowering. 

Nancy Kastning, 502.  7/12/1988. 		RM 569626	Barcode: RM0280746
     with Lee Huston and Joel Kastning
_________________________________________________________________________

67.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre/Park Range: Sierra Madre: ca 9 mi SE of Red Mountain.  Elev. 8800-9400 ft.
T13N R84W S22; also S23.  41.0817 N, 106.8249 W; uncertainty 2 mi..  
Old clear cut in lodgepole pine forest, disturbed. Phenology: flowering. 

Nancy Kastning, 942.  7/28/1988. 		RM 569627	Barcode: RM0280737
     with Lee Huston & Heather Kastning
_________________________________________________________________________

68.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil Ã—  Cirsium canescens Nutt. 				Asteraceae

U.S.A., Colorado, Larimer County: North-central Colorado: Slough Creek 0.5-1 air mi NW of Hohnholz Lake #3.  Elev. 7950-8050 ft.
T11N R77W S10 NW1/4.  40.9374 N, 106.0194 W.  
Badlands on side of ridge and into stream bottom, seasonal. Phenology: flowering. 

Ronald L. Hartman, 69038.  7/27/2000. 		RM 
     with Sarah Nunn
_________________________________________________________________________

69.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, San Miguel County: San Miguel and Lower Dolores River Drainages: at seep crossing Last Dollar Road, ca 0.3 mi SW of Whipple Mountain Trailhead.  Elev. 10400 ft.
T43N R10W S2.  38.0169 N, 107.9393 W.  
Hillside. Phenology: flowering & fruiting. 

Margarette J. Lyon, 7709.  8/22/1994. 		 
_________________________________________________________________________

70.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: hillside between Sage Creek and County Road 401, ca 22 air mi S of Rawlins; ca 19 air mi W of Saratoga.  Elev. 7200 ft.
T17N R87W S9.  41.4613 N, 107.1949 W.  
Snow catch on north facing slope; black sandy soil with patches of aspen trees and flowering shrubs. Phenology: flowering & fruiting. 

Amy J. Roderick, 2354.  7/14/1997. 		RM 
_________________________________________________________________________

71.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Saguache County: Southern Gunnison Basin: San Juan Mountains: ca 4 air mi N of Sawtooth Mountain; ca 9.2 air mi W of Razor Creek Dome; ca 15 air mi S of Gunnison in Soldiers Park.  Elev. 9700-9900 ft.
T47N R1E S17.  38.3316 N, 106.8815 W.  
Aspen grove with occasional fir and pine. Phenology: flowering & fruiting. 

Melanie Arnett, 3051.  8/14/1998. 		RM 
_________________________________________________________________________

72.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Dolores County: Upper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Black Mesa, Forest Road 533 and Forest Road 611, ca 27 air mi NNE of Dolores.  Elev. 10600-10700 ft.
T41N R12W S16 NE1/4.  37.8139 N, 108.196 W.  
Montane meadow with scattered spruce-fir and drainage along road. West to southwest facing. Phenology: flowering & fruiting. 

Lynn Marie Moore, 3800.  8/7/1994. 		 
_________________________________________________________________________

73.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Dolores County: Upper Dolores River Drainage and Adjacent Areas: San Juan National Forest: ca 5 air mi NW of Rico along Geyser Creek Trail, Forest Trail 648.  Elev. 8600-9200 ft.
T40N R11W S6.  37.7571 N, 108.1139 W.  
Aspen, spruce, snowberry, larkspur, and riparian area along creek and natural geyser, northwest face. Phenology: flowering. 

Lynn Marie Moore, 8264.  8/1/1995. 		 
     with Sierra Smith
_________________________________________________________________________

74.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Roosevelt National Forest: Front Range: from Rawah Trailhead on Laramie River Road (County Road 103), west and south facing slopes of Middle Mountain, ca 40 air mi W of Fort Collins.  Elev. 8800-9000 ft.
T9N R76W S12.  40.7632 N, 105.867 W; uncertainty 1 mi..  
Aspen groves on upper slopes and the sides of horse trails. Phenology: flowering. 

Sarah Nunn, 2873.  7/16/2001. 		RM 765218
_________________________________________________________________________

75.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Roosevelt National Forest: Medicine Bow Mountains: Forest Road 200, 1 mi S of Boswell Creek Campground, ca 61 air mi NW of Fort Collins.  Elev. 8700-8800 ft.
T12N R78W S21 W1/2.  40.9873 N, 106.1422 W; uncertainty 1 mi..  
Limber pine and Artemisia steppe, dry and heavily grazed. Phenology: flowering. 

Sarah Nunn, 3302.  7/24/2001. 		RM 765220
_________________________________________________________________________

76.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Range: on North Fork Road.  Elev. 9600 ft.
T16N R78W S8.  41.374 N, 106.183 W; NAD 83, uncertainty 1 mi., Digital Map.  
Roadside in lodgepole pine and spruce-fir zone. Flowers white. Phenology: flowering & fruiting. 

C. L. Porter, 7381.  8/2/1957. 		RM 253760	Barcode: RM0280849
_________________________________________________________________________

77.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Rock Creek Roadless Area, ca 25 air mi NW of Laramie.  Elev. 9750 ft.
T18N R78W S33 SW1/4 SW1/4.  41.4865 N, 106.1654 W.  
Wetlands and marshes; common adjacent to Pinus contorta and Picea engelmannii-Abies lasiocarpa. 

Leila Stanfield, 39.  7/27/1991. 		RM 719019
_________________________________________________________________________

78.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Rock Creek Roadless Area, ca 25 air mi NW of Laramie.  Elev. 9750 ft.
T18N R78W S33 SW1/4 SW1/4.  41.4865 N, 106.1654 W.  
Wetlands and marshes; common adjacent to Pinus contorta and Picea engelmannii-Abies lasiocarpa. Phenology: flowering & fruiting. 

Leila Stanfield, 40.  7/27/1991. 		RM 719020	Barcode: RM0280838
_________________________________________________________________________

79.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: ridge on divide between Middle Branch Middle Lodgepole Creek and South Lodgepole Creek, ca 1.5 mi N of Wyo Hwy 210 (Happy Jack Road), 1.3 mi SW of Eagle Rock and 9 mi E of Laramie.  Elev. 8420 ft.
T14N R71W S18.  41.1818 N, 105.3932 W; uncertainty 0.25 mi..  
Base of Sheman Granite knob on thin, clayey soil with surface of granite pea gravel in opening in Pinus flexilis woods with understory of scattered Purshia tridentata, Senecio fendleri, Leucopoa kingii, and Sedum lanceolatum. Phenology: flowering. 

Walter Fertig, 19730.  7/17/2001. 		RM 703319
_________________________________________________________________________

80.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Medicine Bow Mountains: along South Fork Canadian River ca 1/4 - 1/2 mi S of the confluence, ca 6 air mi N of Gould; ca 16 air mi SE of Walden.  Elev. 8600-8700 ft.
T8N R77W S34 SW1/4.  40.6189 N, 106.0176 W; uncertainty 0.5 mi..  
Aspen slopes. Phenology: flowering. 

B. E. Nelson, 50027.  6/28/2000. 		RM 756312
_________________________________________________________________________

81.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Never Summer Mountains: along the Illinois River at the junction of Forest Roads 750 and 765, ca 8.5 air mi S of Gould; ca 26 air mi SE of Walden.  Elev. 9100 ft.
T5N R77W S16 NE1/4.  40.4017 N, 106.0365 W.  
Meadows among aspen groves in the river bottom. Phenology: flowering. 

B. E. Nelson, 50371.  7/6/2000. 		RM 756311
_________________________________________________________________________

82.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Moffat County: North-central Colorado: Elkhead Mountains: Sand Point above the head of Fourmile Creek, ca 7.5 air mi E of Fortification; ca 22.5 air mi NNE of Craig.  Elev. 9400-9974 ft.
T10N R89W S18 NE1/4.  40.8235 N, 107.4224 W; uncertainty 0.5 mi..  
Open areas in spruce-fir-aspen forest. Phenology: flowering & fruiting. 

B. E. Nelson, 51855.  8/15/2000. 		RM 756310
_________________________________________________________________________

83.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Elkhead Mountains: 4 wheel drive road near Meaden Mountain, 10-12 air mi NW of Clark.  Elev. 8700-9200 ft.
T10N R87W S36; also T10N R86W S31.  40.7804 N, 107.1007 W.  
Lodgepole pine and aspen woodlands. Phenology: flowering. 

Ronald L. Hartman, 67988.  7/10/2000. 		RM 756309
_________________________________________________________________________

84.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Elkhead Mountains: trail to Sand Mountain, ca 5-8 air mi NW of Clark.  Elev. 8300-10000 ft.
T9N R86W S12; also S11, S10, S9.  40.7516 N, 106.9872 W.  
Aspen and conifer forests. Phenology: flowering. 

Ronald L. Hartman, 68093.  7/11/2000. 		RM 756308
_________________________________________________________________________

85.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Medicine Bow Mountains: Colorado State Forest: ca 4 air mi NE of Gould.  Elev. 9400-9500 ft.
T7N R76W S7 South1/4.  40.5899 N, 105.9608 W; uncertainty 0.5 mi..  
Logging road bordered by lodgepole pine, aspen, and alder. Phenology: flowering. 

Ronald L. Hartman, 68480.  7/20/2000. 		RM 756307
     with Sarah Nunn
_________________________________________________________________________

86.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Moffat County: North-central Colorado: Elkhead Mountains: trail to Black Mountain, ca 20 air mi NE of Craig.  Elev. 9700-10000 ft.
T9N R89W S2; also T10N R89W S34.  40.766 N, 107.3467 W.  
Spruce-fir forest. Phenology: flowering. 

Ronald L. Hartman, 68652.  7/23/2000. 		RM 756306
     with Sarah Nunn
_________________________________________________________________________

87.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Carbon County: Sierra Madre: Medicine Bow National Forest: Big Creek Park on road from Pearl Colorado, 2.5 road mi from Colorado.  Elev. 8430 ft.
T12N R82W S10 NW1/4.  41.0246 N, 106.5995 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Spruce-fir forest and rocky slopes. Phenology: flowering. 

Ronald L. Hartman, 68713.  7/23/2000. 		RM 756305
     with Sarah Nunn
_________________________________________________________________________

88.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Park Range: N-S trail just off Fryingpan Trail, 4-5 air mi S of Big Creek Lakes, ca 18 air mi NW of Walden.  Elev. 8700 ft.
T10N R82W S11 NE1/4.  40.8502 N, 106.5741 W.  
Forested edge. Phenology: flowering. 

Ronald L. Hartman, 68891.  7/27/2000. 		RM 756304
     with Sarah Nunn
_________________________________________________________________________

89.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Medicine Bow Mountains: Jack Creek and vicinity, 0.5 air mi SW of Calamity Pass, ca 6 air mi S of Gould.  Elev. 9100 ft.
T5N R77W S3 NW1/4.  40.4306 N, 106.0176 W.  
Spruce-fir forest. Phenology: flowering. 

Ronald L. Hartman, 69351.  7/31/2000. 		RM 756299
_________________________________________________________________________

90.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Park Range: Rainbow Lake Trail, ca 17 air mi WSW of Walden.  Elev. 8800-8900 ft.
T8N R82W S22 W1/2.  40.6479 N, 106.5858 W.  
Trail through spruce forest. Phenology: flowering. 

Ronald L. Hartman, 69391.  8/7/2000. 		RM 756300
_________________________________________________________________________

91.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Medicine Bow Mountains: Colorado State Forest: from peak "12184" to the south, ca 6.5 air mi NE of Gould.  Elev. 11500-12170 ft.
T7N R76W S16.  40.5755 N, 105.9229 W.  
Alpine rocky slope. Phenology: flowering. 

Ronald L. Hartman, 69667.  8/8/2000. 		RM 756301
_________________________________________________________________________

92.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Never Summer Mountains: Colorado State Forest: Upper Michigan Ditch, ca 7-7.5 air mi E of Gould.  Elev. 10200 ft.
T6N R76W S2; also NE1/4 S11.  40.5175 N, 105.885 W.  
Wet areas and along dirt road through spruce-fir. Phenology: flowering & fruiting. 

Ronald L. Hartman, 69794.  8/11/2000. 		RM 756302
_________________________________________________________________________

93.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Park Range: Buffalo Ridge Trail to NE of Davis Peak, ca 25-26 air mi NW of Walden.  Elev. 10187-10930 ft.
T11N R83W S10; also S14.  40.9373 N, 106.7075 W.  
Spruce-fir and open drainages. Phenology: flowering & fruiting. 

Ronald L. Hartman, 69882.  8/15/2000. 		RM 756303
_________________________________________________________________________

94.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Park Range: Newcomb Park Trail, 0.5-2.5 trail mi W of trail head (to granitic domes and Newcomb Creek angling NW), ca 20-21 air mi SW of Walden.  Elev. 8800-8900 ft.
T7N R82W S7; also S8.  40.5899 N, 106.6426 W.  
Meadows and woodland, pond edges. Phenology: flowering. 

Ronald L. Hartman, 70017.  8/17/2000. 		RM 756298
_________________________________________________________________________

95.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Rabbit Ears Range: along Grassy Run or Trail 1135 on the east side of Arapaho Ridge, ca 7.5-8 air mi SW of Rand; ca 23.5 air mi S of Walden.  Elev. 10150-11400 ft.
T5N R79W S20 S1/2.  40.3873 N, 106.2846 W; uncertainty 1 mi..  
Open mixed conifer forest. Phenology: flowering. 

B. E. Nelson, 54112.  7/16/2001. 		RM 761382
_________________________________________________________________________

96.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Rabbit Ears Range: ca 1 1/4 air mi S of Slack-Weiss Reservoir and ca 2 air mi WNW of the north end of Arapaho Ridge, ca 21.5 air mi S of Walden.  Elev. 9120-9220 ft.
T5N R80W S10 NW1/4.  40.4163 N, 106.3604 W; uncertainty 0.5 mi..  
Sagebrush meadows. Phenology: flowering & fruiting. 

B. E. Nelson, 54226.  7/17/2001. 		RM 761381
_________________________________________________________________________

97.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: North Park: along County Road 5, ca 1/2 - 1 1/4 mi N of Chedsey Creek, ca 7.5-8.5 air mi S of Delaney Butte, ca 17 air mi SW of Walden.  Elev. 8400-8500 ft.
T7N R82W S12 E1/4.  40.5901 N, 106.5499 W; uncertainty 1 mi..  
Rolling Artemisia - Eriogonum ridgetop. Phenology: flowering. 

B. E. Nelson, 54282.  7/17/2001. 		RM 761380
_________________________________________________________________________

98.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: head of Harrison Creek, ca 2 air mi E of Walton Peak, ca 3 air mi SW of Rabbit Ears Pass; ca 13 air mi SE of Steamboat Springs.  Elev. 9760-9800 ft.
T5N R83W S25 S1/2.  40.3628 N, 106.6628 W; uncertainty 1 mi..  
Open, stony slope with occassional lodgpole pine on volcanic substrate. Phenology: flowering. 

B. E. Nelson, 54548.  7/24/2001. 		RM 761379
_________________________________________________________________________

99.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: Sarvis (Sarvice) Creek Wilderness: along Silver Creek, ca 1.5 air mi S of Gore Mountain, ca 13.5-15 air mi ENE of Yampa.  Elev. 9320-9720 ft.
T3N R83W S26; also S25.  40.2011 N, 106.6674 W; uncertainty 2 mi..  
Meadows between the willow carr and mixed conifer forest. Phenology: flowering. 

B. E. Nelson, 54692.  7/25/2001. 		RM 761378
_________________________________________________________________________

100.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: North-central Colorado: Park Range: along Silver Creek Trail, ca 2-3 air mi SE of Gore Mountain, ca 15-16.5 air mi NW of Kremmling.  Elev. 9780-9860 ft.
T3N R82W S19 S1/2.  40.2091 N, 106.622 W; uncertainty 1 mi..  
Along logging road in old timber sale with mixed conifer regrowth. Phenology: flowering & fruiting. 

B. E. Nelson, 54728.  7/25/2001. 		RM 761377
_________________________________________________________________________

101.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: Hinman Lake and vicinity to Hinman Creek, ca 1.5 air mi N of the Elk River, ca 6.5 air mi NE of Clark; ca 20 air mi N of Steamboat Springs.  Elev. 8195-8200 ft.
T9N R84W S5 NE1/4; also W1/2 S4.  40.7658 N, 106.8354 W; uncertainty 1 mi..  
Aspen woodlands. Phenology: flowering. 

B. E. Nelson, 54802.  7/30/2001. 		RM 761376
_________________________________________________________________________

102.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: along Middle Fork Little Snake River just N of Crane Park, ca 6.5 air mi NNE of Columbine; ca 32 air mi N of Steamboat Springs.  Elev. 8260-8280 ft.
T11N R85W S4 NE1/4.  40.9382 N, 106.9299 W; uncertainty 0.5 mi..  
Open mixed conifer forest above the river. Phenology: flowering & fruiting. 

B. E. Nelson, 54939.  7/31/2001. 		RM 761375
_________________________________________________________________________

103.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: along Trail 1204 along Middle Fork Little Snake River between Big Red Park and the Continental Divide, ca 29.5 air mi N of Steamboat Springs.  Elev. 8800-9120 ft.
T11N R84W S18 N1/2.  40.9095 N, 106.8543 W; uncertainty 1 mi..  
Aspen forest. Phenology: flowering & fruiting. 

B. E. Nelson, 55039.  8/1/2001. 		RM 761374
_________________________________________________________________________

104.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: northern part of Green Ridge on Forest Road 285, ca 7-7.5 air mi SE of Oak Creek; ca 4.5 air mi NE of Yampa.  Elev. 9160-9440 ft.
T3N R84W S30.  40.2011 N, 106.8588 W; uncertainty 1 mi..  
Aspen forest. Phenology: flowering & fruiting. 

B. E. Nelson, 55202.  8/6/2001. 		RM 761321
_________________________________________________________________________

105.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: on the east side of Green Ridge just N of Muddy Slide (The Slide), ca 6-6.5 air mi E of Yampa; ca 9.5-10 air mi SE of Phippsburg.  Elev. 9440-10280 ft.
T2N R84W S11 SW1/4; also SE1/4 S10 and NE1/4 S15.  40.157 N, 106.7822 W; uncertainty 2 mi..  
Open slopes and draw on Mancos shale. Phenology: flowering. 

B. E. Nelson, 55265.  8/7/2001. 		RM 761320
_________________________________________________________________________

106.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Park Range: along Horse Creek to Rock Creek and the ridge to the north, ca 1.5-2 air mi E of Long Park, ca 15.5-16 air mi SE of Yampa.  Elev. 8550-8880 ft.
T1N R83W S24 NW1/4.  40.0391 N, 106.6483 W; uncertainty 0.5 mi..  
Meadow and open grassy lodgepole pine forest on ridgetop. Phenology: flowering & fruiting. 

B. E. Nelson, 55437.  8/8/2001. 		RM 761319
_________________________________________________________________________

107.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: North-central Colorado: Park Range: along old logging road between Jolley and Horse creeks, ca 4 air mi WSW of Gore Pass, ca 12.5 air mi W of Kremmling.  Elev. 8800-9050 ft.
T1N R82W S18 SW1/4.  40.0538 N, 106.6291 W; uncertainty 0.5 mi..  
Open aspen forest. Phenology: flowering. 

B. E. Nelson, 55504.  8/8/2001. 		RM 761318
_________________________________________________________________________

108.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: North-central Colorado: Elkhead Mountains: along South Fork Slater Creek, ca 1 1/4-1 3/4 air mi N of Lost Park, ca 22-22.5 air mi N of Hayden.  Elev. 8240-8700 ft.
T10N R88W S20.  40.8089 N, 107.2894 W; uncertainty 1 mi..  
Aspen forest. Phenology: flowering & fruiting. 

B. E. Nelson, 55620.  8/13/2001. 		RM 761317
_________________________________________________________________________

109.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Moffat County: North-central Colorado: Elkhead Mountains: at the end of Forest Road 133, ca 3 air mi NE of Black Mountain, ca 2.5 air mi SE of Buck Point, ca 23.5 air mi NNE of Craig.  Elev. 9240-9680 ft.
T10N R89W S24.  40.8089 N, 107.3272 W; uncertainty 1 mi..  
Small clearing in aspen-spruce-fir forest. Phenology: flowering & fruiting. 

B. E. Nelson, 55659.  8/13/2001. 		RM 761316
_________________________________________________________________________

110.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Rabbit Ears Range: along the Continental Divide ca 0.5-1 air mi NW of Chimney Rock, ca 8 air mi ESE of Muddy Pass; ca 27.5 air mi SSW of Walden.  Elev. 9480-9800 ft.
T5N R81W S36.  40.3583 N, 106.4362 W; uncertainty 1 mi..  
Old logged area in mixed conifer-aspen forest. Phenology: flowering & fruiting. 

B. E. Nelson, 56001.  8/20/2001. 		RM 761315
_________________________________________________________________________

111.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Rabbit Ears Range: along East Fork Arapaho Creek, ca 1.5-2 air mi W of Arapaho Ridge, ca 9 air mi SW of Rand; ca 24 air mi S of Walden.  Elev. 9700-9800 ft.
T5N R80W S24 SW1/4.  40.3873 N, 106.3225 W; uncertainty 0.5 mi..  
Old clearcut with open lodgepole pine regeneration. Phenology: flowering & fruiting. 

B. E. Nelson, 56271.  8/27/2001. 		RM 761314
_________________________________________________________________________

112.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Moffat County: North-central Colorado: Wymore Gulch, ca 7 air mi NE of Craig.  Elev. 6900 ft.
T7N R90W S1 SW1/4.  40.5934 N, 107.4408 W; uncertainty 0.5 mi..  
Sagebrush slopes. Phenology: flowering. 

Ronald L. Hartman, 70531.  5/23/2001. 		RM 761313
_________________________________________________________________________

113.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Never Summer Mountains: Never Summer Wilderness: between end of 4-wheel drive trail and start of wilderness or 1-2 air mi ESE of start of jeep trail.  Elev. 9750 ft.
T5N R76W S6 N1/4.  40 26' 28.7" N, ; uncertainty 2 mi..  
Coniferous forest. Phenology: flowering & fruiting. 

Ronald L. Hartman, 71847.  7/10/2001. 		RM 761312
_________________________________________________________________________

114.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Owl Mountain near junction of Forest roads 771 and 792.  Elev. 8900 ft.
T7N R78W S35 NW1/4.  40.5322 N, 106.1142 W; uncertainty 0.5 mi..  
Lodgepole pine. Phenology: flowering & fruiting. 

Ronald L. Hartman, 72000.  7/13/2001. 		RM 761311
_________________________________________________________________________

115.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Medicine Bow Mountains: Forest Road 204, 0.7 road mi SE of Forest Service boundary, ca 1 air mi from Kings Canyon.  Elev. 8511 ft.
T11N R79W S13.  40.9229 N, 106.2098 W; uncertainty 1 mi..  
Phenology: flowering & fruiting. 

Ronald L. Hartman, 73393.  8/3/2001. 		RM 761310
_________________________________________________________________________

116.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North-central Colorado: Medicine Bow Mountains: Colorado State Forest State Park: along County Road 8A.  Elev. 8600 ft.
T10N R78W S9 SW1/4.  40.8503 N, 106.1527 W; uncertainty 0.5 mi..  
Aspen grove and stream bottom. Phenology: flowering & fruiting. 

Ronald L. Hartman, 73487.  8/4/2001. 		RM 761309
_________________________________________________________________________

117.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: along Bear Creek, ca 33 air mi SW of Douglas.  Elev. 7460 ft.
T26N R73W S19 E1/2.  42.2096 N, 105.6441 W.  
Rock outcrops. Phenology: flowering & fruiting. 

B. A. Packer, 2889.  8/9/1997. 		 
     with J. Brondum and T. McGowan
_________________________________________________________________________

118.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Natrona County: Laramie Range: along Deer Creek and to the E, ca 5 air mi S of Reno Hill, ca 27 air mi SE of Casper; ca 9.5 air mi NW of Little Medicine.  Elev. 7440-7600 ft.
T29N R77W S9 NW1/4.  42.4966 N, 106.0789 W.  
Steep gravelly slope with rock outcrops, "pavement", grassy patches, and scattered limber pine. Phenology: flowering & fruiting. 

B. E. Nelson, 41719.  7/16/1997. 		 
_________________________________________________________________________

119.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Left-hand Creek near Puzzler, near Ward.  Elev. 9000 ft.
Phenology: fruiting. 

Edmund R. Cross, s.n..  8/31/1913. 		RM 169252
_________________________________________________________________________

120.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Minturn.
Phenology: fruiting. 

George E. Osterhout, 3389.  8/17/1906. 		RM 169293
_________________________________________________________________________

121.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 5159.  7/20/1914. 		RM 312629
_________________________________________________________________________

122.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 7622.  8//1894. 		RM 169253
_________________________________________________________________________

123.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Arapaho National Forest, Continental Divide Trail W of Willow Creek Pass.  Elev. 9800 ft.
T4N R78W S2.  40.3396 N, 106.0926 W; uncertainty 1 mi..  
Dry lodgepole forest, disturbed roadside; with Vaccinium Lupinus caudatus, Anaphalis margaritacea and Arnica. Phenology: flowering & fruiting. 

Nan Lederer, 02-05.  7/10/2002. 		RM 724599
_________________________________________________________________________

124.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Gore Pass: W side.  Elev. 9300 ft.
40 4.1' N, 106 34.3' W.  
Stream bank, with Geranium richardsonii and Senecio triangularis. Phenology: fruiting. 

Robert D. Dorn, 9528.  8/16/2002. 		RM 718092
_________________________________________________________________________

125.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Converse County: Laramie Range: along Rabbit Creek, ca 20 air mi SW of Douglas.  Elev. 7000-7300 ft.
T30N R74W S30 SW1/4; also NW1/4 of NW1/4 S31.  42.54 N, 105.7567 W.  
Along creek and adjacent granite outcroppings. Phenology: flowering & fruiting. 

B. A. Packer, 4322.  7/15/1998. 		RM 
     with T. McGowan
_________________________________________________________________________

126.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: along Soldier Creek, ca 37 air mi S of Douglas.  Elev. 6200-6600 ft.
T28N R71W S23 SE1/4.  42.3834 N, 105.3259 W.  
In granite outcroppings. Phenology: flowering & fruiting. 

B. A. Packer, 4643.  7/21/1998. 		RM 
     with T. McGowan & J. Brondum
_________________________________________________________________________

127.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Flat Tops Wilderness: Mirror Lake Trail, ca 30 air mi E of Meeker; ca 6 air mi NW of Trappers Lake.  Elev. 8600-9400 ft.
T1N R89W S13.  40.0552 N, 107.3242 W.  
Northeast-facing forested slopes, with Engelmann spruce, subalpine fir, lodgepole pine, and aspen. 

James P. Vanderhorst, 1104.  7/15/1990. 		 
_________________________________________________________________________

128.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Broken Rib Spring, ca 9 air mi NE of Glenwood Springs.  Elev. 10200 ft.
T4S R88W S26.  39.6732 N, 107.2305 W.  
Wet area around spring, with Picea, Abies, and Salix. 

James P. Vanderhorst, 1292.  7/23/1990. 		 
_________________________________________________________________________

129.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Flat Tops Wilderness: vicinity of McMillan Lake, ca 30 air mi NNE of Glenwood Springs.  Elev. 9200 ft.
T1S R86W S30; also S31.  39.9413 N, 107.0787 W.  
Area of old forest fire with northeast exposure. 

James P. Vanderhorst, 1392.  7/28/1990. 		 
_________________________________________________________________________

130.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Flat Tops Wilderness: Marvine Lakes, ca 29 air mi ESE of Meeker.  Elev. 9300 ft.
T1S R89W S27; also S28.  39.9351 N, 107.3622 W.  
Spruce-fir woods. 

James P. Vanderhorst, 1870.  8/17/1990. 		 
_________________________________________________________________________

131.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Flat Tops/White River Plateau: King Mountain, ca 11 air mi SW of Yampa.  Elev. 8600 ft.
T1N R84W S34.  40.0096 N, 106.8014 W.  
Cow pasture about 1/4 mi from old homestead, meadows, and aspen woods. 

James P. Vanderhorst, 3378.  7/15/1991. 		 
     with Carlos Palaci
_________________________________________________________________________

132.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Flat Tops/White River Plateau: Deer Creek, ca 6 air mi W of Burns.  Elev. 9000 ft.
T2S R86W S14.  39.8825 N, 107.0016 W.  
Old burned forest with reproducing aspen. 

James P. Vanderhorst, 3438.  7/21/1991. 		 
_________________________________________________________________________

133.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Lower Short Creek, ca 14 air mi NE of Glenwood Springs.  Elev. 10000 ft.
T3S R88W S36.  39.746 N, 107.2117 W.  
Meadows on hills above creek, with Festuca thurberi, snowberry, and sagebrush. 

James P. Vanderhorst, 3484.  7/23/1991. 		 
_________________________________________________________________________

134.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: Butler Creek, ca 18 air mi NW of Glenwood Springs.  Elev. 8700 ft.
T3S R92W S30.  39.7605 N, 107.7573 W.  
Meadows and aspen woods with snowberry. 

James P. Vanderhorst, 3618a.  7/25/1991. 		 
_________________________________________________________________________

135.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Dunckley Flat Tops N of Dunckley Pass, ca 11 air mi WSW of Oak Creek.  Elev. 9500 ft.
T3N R87W S27.  40.2011 N, 107.1458 W.  
Meadow dominated by Veratrum. 

James P. Vanderhorst, 3692.  8/3/1991. 		 
_________________________________________________________________________

136.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Cyclone Creek, ca 19 air mi WSW of Oak Creek.  Elev. 8600 ft.
T3N R88W S32.  40.1864 N, 107.2989 W.  
Meadow above creek, with Veratrum, Dugaldia, and Rudbeckias. 

James P. Vanderhorst, 3711.  8/4/1991. 		 
_________________________________________________________________________

137.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: South Fork White River, "Budges Resort", ca 20 air mi N of Glenwood Springs.  Elev. 9000 ft.
T2S R89W S35; also S26.  39.8333 N, 107.3434 W.  
Meadows with grasses and forbs. 

James P. Vanderhorst, 3802.  8/6/1991. 		 
_________________________________________________________________________

138.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Garfield County: Flat Tops/White River Plateau: limestone ridge above Bison Lake, ca 13 air mi N of Glenwood Springs.  Elev. 11000 ft.
T3S R89W S27.  39.7605 N, 107.3622 W.  
Exposed limestone with pockets of poorly drained soil, northern exposure, with scattered spruce. 

James P. Vanderhorst, 3860.  8/6/1991. 		 
_________________________________________________________________________

139.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Sleepy Cat Peak, ca 23 air mi ENE of Meeker.  Elev. 10500 ft.
T2N R90W S19.  40.1279 N, 107.531 W.  
South-facing meadows on Mancos shale substrate. 

James P. Vanderhorst, 4094.  8/12/1991. 		 
_________________________________________________________________________

140.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: Flat Tops/White River Plateau: Sleepy Cat Trail, ca 16 air mi ENE of Meeker.  Elev. 9100 ft.
T2N R91W S30.  40.1134 N, 107.6438 W.  
Aspen woodland. 

James P. Vanderhorst, 4121.  8/12/1991. 		 
_________________________________________________________________________

141.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: Medicine Bow National Forest: ca 5 air mi SE of Laramie.  Elev. 8200-8500 ft.
T15N R72W S22 W1/2.  41.254 N, 105.4497 W.  
In forested grassland on southwest facing slope. Phenology: flowering & fruiting. 

B. A. Packer, 5497.  8/18/1998. 		RM 
     with T. McGowan
_________________________________________________________________________

142.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Muddy Mountain, ca 8 air mi NE of Baggs; ca 47 air mi SSW of Rawlins.  Elev. 7700-7900 ft.
T13N R90W S8 NE1/4.  
Meadow areas above the mountain shrub-aspen thickets. Phenology: flowering. 

B. E. Nelson, 38493.  7/11/1996. 		RM 793387	Barcode: RM0280847
_________________________________________________________________________

143.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: along the Continental Divide off Sage Creek or County Road 401, ca 26 air mi S of Rawlins.  Elev. 8070-8240 ft.
T17N R87W S31 SW1/4.  
Mountain shrub and aspen thickets on lee slopes. Phenology: flowering. 

B. E. Nelson, 38572.  7/14/1996. 		RM 793388
_________________________________________________________________________

144.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: along the Continental Divide off Sage Creek or County Road 401, ca 26 air mi S of Rawlins.  Elev. 8070-8240 ft.
T17N R87W S31 SW1/4.  
Sandy cut bank in sagebrush grassland. Phenology: flowering. 

B. E. Nelson, 38613.  7/14/1996. 		RM 793539	Barcode: RM0280853
_________________________________________________________________________

145.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: Hell Canyon off Green Ridge, ca 1 air mi E of Savery Creek, ca 41 air mi S of Rawlins; ca 20 air mi NE of Baggs; ca 3.5 air mi SW of Tullis.  Elev. 7500-7700 ft.
T14N R88W S18 E1/2.  
Aspen woods. Phenology: flowering. 

B. E. Nelson, 38779.  7/15/1996. 		RM 793538	Barcode: RM0280854
     with Beth Ward
_________________________________________________________________________

146.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: Hell Canyon off Green Ridge, ca 1 air mi E of Savery Creek, ca 41 air mi S of Rawlins; ca 20 air mi NE of Baggs; ca 3.5 air mi SW of Tullis.  Elev. 7500-7700 ft.
T14N R88W S18 E1/2.  
Mountain shrub community adjacent to aspen woods. Phenology: flowering & fruiting. 

B. E. Nelson, 38800.  7/15/1996. 		RM 793540
     with Beth Ward
_________________________________________________________________________

147.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: along a small drainage on the south side of Browns Hill or County Road 602, ca 3/4 mi E of Tullis, ca 37.5 air mi S of Rawlins; ca 23 air mi NE of Baggs.  Elev. 7720-7800 ft.
T15N R88W S34 W1/2.  
Sagebrush-bitterbrush-grassland slopes and ridgetop. Phenology: flowering. 

B. E. Nelson, 38910.  7/15/1996. 		RM 793541	Barcode: RM0280855
_________________________________________________________________________

148.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Washakie Basin: Antelope Springs at the south end of Antelope Flats along Bitter Creek South or County Road 19, ca 37 air mi ESE of Rock Springs; ca 33 air mi WSW of Wamsutter.  Elev. 7000-7020 ft.
T16N R99W S2 NW1/4.  
Meadows below the springs. Phenology: flowering. 

B. E. Nelson, 39044.  7/18/1996. 		RM 793542
_________________________________________________________________________

149.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: along the Continental Divide on Miller Hill off Miller Hill or County Road 505, ca 18.5 air mi S of Rawlins; ca 6.5 air mi ESE of Bridger Pass.  Elev. 8180-8320 ft.
T18N R88W S16 S1/2.  
Aspen woods. Phenology: flowering. 

B. E. Nelson, 39074.  7/21/1996. 		RM 793269	Barcode: RM0280848
_________________________________________________________________________

150.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: near the head of Littlefield Creek drainage, ca 26 air mi S of Rawlins; ca 29 air mi NE of Baggs.  Elev. 7920-8000 ft.
T17N R89W S25 South1/4; also N1/4 S36.  
Aspen-willow woods or aspen woods. Phenology: flowering. 

B. E. Nelson, 39179.  7/21/1996. 		RM 793268	Barcode: RM0280846
_________________________________________________________________________

151.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: on the divide between Wild Cow and Little Savery drainages, ca 2.5-3 air mi N of Ketchum Buttes, ca 32 air mi SSW of Rawlins; ca 22.5 air mi NE of Baggs.  Elev. 7520-7720 ft.
T16N R89W S28 W1/2.  
Aspen woods. Phenology: flowering & fruiting. 

B. E. Nelson, 39250.  7/21/1996. 		RM 793267	Barcode: RM0280845
_________________________________________________________________________

152.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: along Dirtyman Fork and area to the south, 0.8-1.5 air mi SW of Dexter Peak, ca 5-5.5 air mi E of Tullis; ca 36 air mi S of Rawlins; ca 26.5 air mi NE of Baggs.  Elev. 7920-8570 ft.
T15N R87W S29 E1/2.  
Open aspen forest. Phenology: flowering. 

B. E. Nelson, 39749.  8/13/1996. 		RM 793543
_________________________________________________________________________

153.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Sweetwater County: South-central Wyoming: Rock Springs Uplift: northern slopes and top at north end of Essex Mountain, ca 32 air mi NNE of Rock Springs.  Elev. 7320-8020 ft.
T24N R103W S8 SW1/4; also SE1/4 S7 and NE1/4 S18.  
Moist area. Phenology: flowering. 

Beth Ward, 2324a.  7/11/1996. 		RM 793263	Barcode: RM0280842
_________________________________________________________________________

154.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: top and south slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.  Elev. 6900-9100 ft.
T12N R88W S10 W1/2; also SE1/4 S9 and NE1/4 S16.  
Top of mountain. Phenology: flowering. 

Beth Ward, 2678.  7/14/1996. 		RM 793265	Barcode: RM0280840
_________________________________________________________________________

155.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: on east side of Atlantic Rim, ca 2 air mi SW of Bridger Pass; ca 20.5 air mi SSW of Rawlins.  Elev. 7490-7660 ft.
T18N R89W S18 SW1/4; also NW1/4 S19.  
Hillside above spring. Phenology: flowering. 

Beth Ward, 3126.  7/21/1996. 		RM 793266	Barcode: RM0280839
_________________________________________________________________________

156.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: top and north slopes of Cow Creek Butte, ca 1 mi NW of Deep Gulch; ca 32 air mi SSW of Rawlins.  Elev. 7770-7929 ft.
T16N R90W S15 N1/2.  
Open hillside. Phenology: flowering. 

Beth Ward, 3202.  7/24/1996. 		RM 793437	Barcode: RM0280856
_________________________________________________________________________

157.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: north facing slopes and bottom of Garden Gulch, ca 1.5 air mi SW of Cow Creek Butte; ca 33 air mi SSW of Rawlins.  Elev. 7230-7520 ft.
T16N R90W S21 N1/4; also S1/4 S16.  
Moist draw. Phenology: flowering. 

Beth Ward, 3239.  7/24/1996. 		RM 793262	Barcode: RM0280843
_________________________________________________________________________

158.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: below Rendle Rim, ca 1 air mi SSW of Rendle Butte; ca 30.5 air mi SSW of Rawlins.  Elev. 7445-7880 ft.
T16N R89W S21 E1/4; also W1/4 S22.  
Moist draw. Phenology: flowering. 

Beth Ward, 3838.  8/18/1996. 		RM 793261	Barcode: RM0280844
_________________________________________________________________________

159.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: near headwaters of Wild Cow Creek, ca 3 air mi SW of Rendle Butte; ca 33 air mi SSW of Rawlins.  Elev. 7220-7560 ft.
T16N R89W S29 SW1/4; also NE1/4 S31, NW1/4 S32; also SE1/4 S30.  
Shaded hillside. Phenology: flowering. 

Beth Ward, 3919.  8/18/1996. 		RM 793260	Barcode: RM0280850
_________________________________________________________________________

160.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: northwest slopes of Battle Mountain, ca 3 air mi N of Colorado; ca 18 air mi E of Baggs.  Elev. 7200-8280 ft.
T12N R88W S4 NE1/4; also T13N R88W S1/4 S33.  
Shaded aspen grove. Phenology: flowering. 

Beth Ward, 3951.  8/20/1996. 		RM 793259	Barcode: RM0280851
_________________________________________________________________________

161.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Sierra Madre: top and northeast slopes of Battle Mountain, ca 19 air mi E of Baggs.  Elev. 7520-8850 ft.
T12N R88W S3; also NW1/4 S2 and T13N R88W S35.  
Shaded draw. Phenology: flowering. 

Beth Ward, 4051.  8/20/1996. 		RM 793258	Barcode: RM0280852
_________________________________________________________________________

162.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: South-central Wyoming: Deep Creek Rim and draws on west-facing slope, ca 3 air mi E of Wyo Hwy 789; ca 8.5 air mi NNE of Baggs.  Elev. 6680-7210 ft.
T14N R91W S26.  
Rocky draw, sandy soil. Phenology: flowering. 

Beth Ward, 888.  6/17/1996. 		RM 793264	Barcode: RM0280841
_________________________________________________________________________

163.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: Miller Creek, ca 10 air mi S of Encampment.  Elev. 8600 ft.
T13N R84W S27.  
Moist open woods near creek. Occasional; flowers white. Phenology: flowering & fruiting. 

Roger L. Williams, 836.  7/29/1989. 		RM 960609	Barcode: RM0215961
_________________________________________________________________________

164.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Red Mountain and vicinity: ridge ca 1 air mi E of Red Mountain summit, ca 27 air mi SW of Laramie.  Elev. 8000-8400 ft.
T12N R76W S15.  41.0086 N, 105.9086 W; uncertainty 1 mi..  
Lee slope in mountain shrub community. Phenology: flowering. 

B. E. Nelson, 22548.  6/24/1992. 		RM 962089	Barcode: RM0217932
_________________________________________________________________________

165.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: 4.5 mi from the river on the North Platte River Access Road.  Elev. 8900 ft.
T14N R80W S21.  41.1661 N, 106.3872 W.  
Frequent in gravelly soil at the edge of the road. Phenology: flowering & fruiting. 

B. E. Nelson, 768.  7/23/1973. 		RM 296256
     with Linda Nelson
_________________________________________________________________________

166.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: ENE of Little Brooklyn Lake, behind Open Air Chapel, above road.  Elev. 10380 ft.
T16N R79W S11 SW1/4.  41.3722 N, 106.2367 W.  
Moist southeast-facing slope. 

June Haines, 10307.  8/28/1991. 		RM 
_________________________________________________________________________

167.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: E of Brooklyn Lake, near plot 214.  Elev. 10400 ft.
T16N R79W S11 SW1/4 near center of eastern boundary of S11.  41.3722 N, 106.2367 W.  
Edge of spruce-fir forest, near moist forb meadow. 

June Haines, 9571.  8/12/1991. 		RM 
     with Tom Fletchall
_________________________________________________________________________

168.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: SE of Brooklyn Lake, drainage above road just N of southern boundary of extended GLEES study area.  Elev. 10290 ft.
T16N R79W S11; South1/2 near center.  41.3722 N, 106.2367 W.  
Forb meadow in moist drainage. 

June Haines, 9678.  8/14/1991. 		RM 
_________________________________________________________________________

169.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Kennaday Peak, ca 15 air mi E of Saratoga.  Elev. 10400-10800 ft.
T17N R81W S8; also S16 and S17.  
Grassy and rocky slopes and ridges above treeline. Phenology: flowering. 

Ronald L. Hartman, 19841.  9/2/1984. 		RM 357745	Barcode: RM0280747
_________________________________________________________________________

170.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Chambers Lake.
Phenology: fruiting. 

George E. Osterhout, 4290.  8/30/1910. 		RM 161098
_________________________________________________________________________

171.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 4805.  8/23/1912. 		RM 159250
_________________________________________________________________________

172.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Little South: Rockwell's Place.
Phenology: fertile. 

George E. Osterhout, 4781.  8/15/1912. 		RM 157698
_________________________________________________________________________

173.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Chambers Lake.
Phenology: fertile. 

George E. Osterhout, 6335.  8/6/1924. 		RM 159242
_________________________________________________________________________

174.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Estes Park.
Phenology: fertile. 

George E. Osterhout, 5548.  8/25/1916. 		RM 159073
_________________________________________________________________________

175.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: E of Estes Park along the Thompson.
Phenology: fertile. 

George E. Osterhout, 5151.  7/20/1914. 		RM 157699
_________________________________________________________________________

176.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North Park.  Elev. 8000 ft.
Phenology: flowering. 

George E. Osterhout, 4999.  7/31/1913. 		RM 80591
_________________________________________________________________________

177.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Thompson Canyon above the Forks.
Phenology: fertile. 

George E. Osterhout, 4804.  8/23/1912. 		RM 159071
_________________________________________________________________________

178.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Glacier Park on the South Fork Thompson.
Phenology: fertile. 

George E. Osterhout, 5598.  9/10/1916. 		RM 159244
_________________________________________________________________________

179.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Thompson Canyon above the Forks.
Possible hybrid with C. undulatum; narrow phyllary glands present. Phenology: fertile. 

George E. Osterhout, 3087.  8/16/1905. 		RM 170401
_________________________________________________________________________

180.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Phenology: fertile. 

George E. Osterhout, 3362x.  8/16/1906. 		RM 159246
_________________________________________________________________________

181.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Phenology: fertile. 

George E. Osterhout, 3389a.  8/17/1906. 		RM 169294
_________________________________________________________________________

182.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: E of Estes Park along the Thompson.
Phenology: fertile. 

George E. Osterhout, 5158.  7/20/1914. 		RM 159070
_________________________________________________________________________

183.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 6641.  8/16/1926. 		RM 157701
_________________________________________________________________________

184.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: E of Estes Park along the Thompson.
Phenology: fertile. 

George E. Osterhout, 5209.  7/20/1914. 		RM 157706
_________________________________________________________________________

185.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 3092.  8/16/1905. 		RM 157707
_________________________________________________________________________

186.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 3092.  8/16/1905. 		RM 157705
_________________________________________________________________________

187.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Little South: Rockwell's Place.
Phenology: flowering & fruiting. 

George E. Osterhout, 4783.  8/15/1912. 		RM 312748
_________________________________________________________________________

188.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: E of Estes Park along the Thompson.
Phenology: flowering & fruiting. 

George E. Osterhout, 5156.  7/20/1914. 		RM 170395
_________________________________________________________________________

189.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Sulphur Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 3566.  8/7/1907. 		RM 170386
_________________________________________________________________________

190.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Cameron Pass.  Elev. 10000 ft.
Phenology: flowering & fruiting. 

George E. Osterhout, 5006.  8/2/1913. 		RM 80592
_________________________________________________________________________

191.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gilpin County: Toland.
Phenology: flowering & fruiting. 

George E. Osterhout, 3267.  7/20/1906. 		RM 161097
_________________________________________________________________________

192.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Cameron Pass.
Phenology: flowering & fruiting. 

George E. Osterhout, 5006.  8/2/1913. 		RM 161110
_________________________________________________________________________

193.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Sulphur Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 3589a.  8/8/1907. 		RM 170402
_________________________________________________________________________

194.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Sulphur Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 3313.  7/22/1906. 		RM 159072
_________________________________________________________________________

195.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Steamboat Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 4953.  7/11/1913. 		RM 161004
_________________________________________________________________________

196.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Steamboat Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 2674.  7/14/1902. 		RM 169256
_________________________________________________________________________

197.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Thompson Canyon above the Forks.
Phenology: flowering & fruiting. 

George E. Osterhout, 4812.  8/23/1912. 		RM 159248
_________________________________________________________________________

198.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Sulphur Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 3312.  7/22/1906. 		RM 169254
_________________________________________________________________________

199.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 7617.  7/28/1904. 		RM 157704
_________________________________________________________________________

200.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 3091.  8/16/1905. 		RM 170406
_________________________________________________________________________

201.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Sulphur Springs.  Elev. 7750 ft.
Phenology: flowering & fruiting. 

George E. Osterhout, 3057.  7/16/1905. 		RM 170391
_________________________________________________________________________

202.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 3091.  8/16/1905. 		RM 170405
_________________________________________________________________________

203.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North Park: Michigan River.
Phenology: flowering & fruiting. 

George E. Osterhout, 4998.  7/31/1913. 		RM 169258
_________________________________________________________________________

204.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: North Park: Michigan River.
Phenology: flowering & fruiting. 

George E. Osterhout, 4999.  7/31/1913. 		RM 159076
_________________________________________________________________________

205.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Stove Prairie, Bosworth's Ranch.
Phenology: fertile. 

George E. Osterhout, 4768.  8/17/1912. 		RM 170394
_________________________________________________________________________

206.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: Hills E of North Park.
Phenology: flowering & fruiting. 

George E. Osterhout, 2238.  8/24/1900. 		RM 161068
_________________________________________________________________________

207.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Sulphur Springs.
Phenology: flowering & fruiting. 

George E. Osterhout, 3589.  8/8/1907. 		RM 170390
_________________________________________________________________________

208.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gilpin County: Toland.
Phenology: flowering & fruiting. 

George E. Osterhout, 3266.  7/20/1906. 		RM 170388
_________________________________________________________________________

209.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Ward.
Phenology: flowering & fruiting. 

George E. Osterhout, 2429.  7/17/1901. 		RM 170389
_________________________________________________________________________

210.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: N of Bear [Yampa] River, E of Hayden.
Phenology: flowering & fruiting. 

George E. Osterhout, 1840.  8/29/1899. 		RM 169261
_________________________________________________________________________

211.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Thompson Canyon above the Forks.
Phenology: flowering & fruiting. 

George E. Osterhout, 4806.  8/23/1912. 		RM 170396
_________________________________________________________________________

212.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 2218.  7/21/1900. 		RM 169260
_________________________________________________________________________

213.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Little South: Rockwell's Place.
Phenology: flowering & fruiting. 

George E. Osterhout, 4782.  8/15/1912. 		RM 170393
_________________________________________________________________________

214.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 4808.  8/23/1912. 		USFS 312751
_________________________________________________________________________

215.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Bosworth's Ranch.
Phenology: flowering & fruiting. 

George E. Osterhout, 4769.  8/17/1912. 		RM 312742
_________________________________________________________________________

216.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 981.  8/6/1896. 		RM 157702
_________________________________________________________________________

217.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Bosworth's Ranch.
Phenology: flowering & fruiting. 

George E. Osterhout, 4767.  8/17/1912. 		RM 312741
_________________________________________________________________________

218.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Bosworth's Ranch, Stove Prairie.
Phenology: flowering & fruiting. 

George E. Osterhout, 4797.  8/13/1912. 		RM 169257
_________________________________________________________________________

219.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 4811.  8/23/1912. 		RM 312740
_________________________________________________________________________

220.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

George E. Osterhout, 4809.  8/23/1912. 		RM 312752
_________________________________________________________________________

221.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Along trail to Longs Peak.
Phenology: flowering & fruiting. 

George E. Osterhout, 5457.  9/10/1915. 		RM 159075
_________________________________________________________________________

222.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Longs Peak Inn, trail to Storm Pass.
Seemingly abnormal heads, perhaps a peculiar form of C. o(s?)pathulatus, but having some resemblance to C. modestus. Phenology: flowering & fruiting. 

George E. Osterhout, 5469.  9/12/1915. 		RM 161069
_________________________________________________________________________

223.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Hayden.
Phenology: flowering & fruiting. 

George E. Osterhout, 5085.  6/24/1914. 		RM 169255
_________________________________________________________________________

224.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Routt County: Hayden.
Phenology: flowering & fruiting. 

George E. Osterhout, 4948.  7/9/1913. 		RM 157700
_________________________________________________________________________

225.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: E of Estes Park along the Thompson.
Phenology: flowering & fruiting. 

George E. Osterhout, 5150.  7/20/1914. 		RM 159247
_________________________________________________________________________

226.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Minturn.
Phenology: flowering & fruiting. 

George E. Osterhout, 3389.  8/17/1906. 		RM 169292
_________________________________________________________________________

227.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Near Tabernash, on U.S. Hwy 40.  Elev. 8500 ft.
Open Pinus contorta forest. Common.  Corollas white. Phenology: flowering & fruiting. 

C. L. Porter, 10089.  8/16/1965. 		RM 278191
     with Marjorie W. Porter
_________________________________________________________________________

228.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: 3 mi W of Cameron Pass at The Crags Campground.  Elev. 9000 ft.
Open pine forest. Phenology: flowering & fruiting. 

C. L. Porter, 8493.  8/7/1960. 		RM 263020
     with Marjorie W. Porter
_________________________________________________________________________

229.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: Routt National Forest: Chedsey Creek, experimental plot 6.  Elev. 8600 ft.
Slope level; gravelly loam soil; park habitat. Quite common. Phenology: flowering & fruiting. 

Charles A. Kutzleb, K-39.  7/5/1927. 		USFS 476101
_________________________________________________________________________

230.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Roosevelt National Forest: junction Fish Creek and Little South Poudre River.  Elev. 8100 ft.
T7N R73W S1.  
Slope 5% east; soil deep gravelly silt; aspen habitat. Occasional. Phenology: flowering & fruiting. 

Paul L. Ginter, 399.  8/14/1941. 		USFS 475996
_________________________________________________________________________

231.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Fraser Experimental Forest: Fool Creek watershed near road 2, 6.5 mi SW of Fraser.  Elev. 10500 ft.
Dry. Phenology: flowering. 

Wayne L. Regelin, 38.  7/22/1969. 		USFS 476116
_________________________________________________________________________

232.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Canyon of the Thompson River, above the forks.
Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 545) as Carduus americanus x C. laterifolius, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium americanum x C. laterifolium with the combination C. xcanalense as a synonym.  The name C. xcanalense was not validly published.  The name Carduus canalensis, sp. nov., in Osterhout's hand is an unpublished herbarium name.  I do not consider this plant to be a hybrid.  Keil. Phenology: flowering & fruiting. 

George E. Osterhout, 3089.  8/16/1905. 		RM 170407
_________________________________________________________________________

233.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Left-hand Creek near Puzzler, near Ward.  Elev. 9000 ft.
Brookside trail. Phenology: flowering. 

Edmund R. Cross, s.n..  8/31/1913. 		RM 170397
_________________________________________________________________________

234.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gilpin County: Dark Canyon, above Baltimore.  Elev. 9100 ft.
Brookside trail. Phenology: flowering & fruiting. 

Edmund R. Cross, s.n..  8/2/1913. 		RM 313308
_________________________________________________________________________

235.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gilpin County: Dark Canyon, above Baltimore.  Elev. 9100 ft.
Brookside trail. Phenology: flowering & fruiting. 

Edmund R. Cross, s.n..  8/2/1913. 		RM 159243
_________________________________________________________________________

236.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Estes Park Road, near Ward.  Elev. 9200 ft.
Dry roadsides. Phenology: flowering & fruiting. 

Edmund R. Cross, s.n..  9/1/1913. 		RM 313307
_________________________________________________________________________

237.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Eldora.  Elev. 8600-9000 ft.
T1S R73W S21.  39.9488 N, 105.5726 W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!.  
Phenology: flowering & fruiting. 

W. W. Robbins, 2371.  7/28/1906. 		RM 57416
_________________________________________________________________________

238.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Sugar Loaf Mountain.  Elev. 8917 ft.
40.0269 N, 105.4189 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Phenology: flowering & fruiting. 

W. W. Robbins, 2166.  7/21/1906. 		RM 57417
_________________________________________________________________________

239.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Sugar Loaf Mountain.
Phenology: flowering & fruiting. 

W. W. Robbins, 2246.  7/24/1906. 		RM 57415
_________________________________________________________________________

240.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County:   Elev. 7000 ft.
Phenology: flowering & fruiting. 

Francis Ramaley, 3816.  8/24/1907. 		RM 61193
_________________________________________________________________________

241.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Near Ward.  Elev. 9500 ft.
Phenology: flowering & fruiting. 

Francis Ramaley, 5876.  7/20/1908. 		RM 64616
     with G. S. Dodds and W. W. Robbins
_________________________________________________________________________

242.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gilpin County: Small lake 1/4 mi below Tolland.  Elev. 8800 ft.
Shrub zone. Phenology: flowering & fruiting. 

Francis Ramaley, 3405.  8/10/1907. 		RM 61195
     with W. W. Robbins
_________________________________________________________________________

243.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Middle Park: near Hot Sulphur Springs.  Elev. 7600 ft.
40.0731 N, 106.102 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Phenology: flowering & fruiting. 

Francis Ramaley, 3604.  8/3/1907. 		RM 61194
     with W. W. Robbins
_________________________________________________________________________

244.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: E of Brooklyn Lake, near plot 214.  Elev. 10400 ft.
T16N R79W S11 SW1/4; near center of eastern boundary of S11.  41.3689 N, 106.2328 W; uncertainty 0.5 mi..  
Spruce-fir forest; near moist forb meadow. Phenology: flowering & fruiting. 

June Haines, 9571.  8/12/1991. 		RM 575275	Barcode: RM0280733
     with Tom Fletchall
_________________________________________________________________________

245.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Wyo Hwy 130, ca 3 mi W of Ryan Park, E of North Brush Creek bridge.  Elev. 7000 ft.
Moist roadside ditch.la Phenology: flowering & fruiting. 

Robert C. Gardner, 147B.  7/22/1971. 		RM 293049
_________________________________________________________________________

246.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Converse County: 8 mi SW of Esterbrook, on road to Ft. Fetterman Road.  Elev. 5000 ft.
Along roadside. Chemical voucher. Phenology: flowering & fruiting. 

Robert C. Gardner, 123.  7/2/1971. 		RM 293145
_________________________________________________________________________

247.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Lake Owen, 11 mi N of Foxpark.  Elev. 8000 ft.
Along dry roadside. Phenology: flowering & fruiting. 

Robert C. Gardner, 165.  7/31/1971. 		RM 293152
_________________________________________________________________________

248.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Wyo Hwy 130, ca 3 mi W of Centennial, just across Libby Creek bridge, along Forest Road.  Elev. 8200 ft.
100 ft off road. Phenology: flowering & fruiting. 

Robert C. Gardner, 146.  7/22/1971. 		RM 293154
_________________________________________________________________________

249.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: County Road 17, ca 1 mi SE of quarry, then ca 4 mi SE on two-rut road.  Elev. 7400 ft.
With aspen and other broad-leaved trees. Phenology: flowering & fruiting. 

Robert C. Gardner, 143.  7/19/1971. 		RM 293153	Barcode: RM0280835
_________________________________________________________________________

250.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Douglas Creek.  Elev. 7600 ft.
T14N R80W S32 SW1/4.  
Rocky slope with Pseudotsuga and Juniperus. Corolla white. Phenology: flowering & fruiting. 

Robert D. Dorn, 5371.  9/10/1992. 		RM 574768
_________________________________________________________________________

251.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre.  Elev. 8100 ft.
T13N R87W S16 N1/2.  41.10011 N, 107.18281 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Oak-aspen with Wyethia and Lathyrus. Corolla white. Phenology: flowering & fruiting. 

Robert D. Dorn, 3492.  6/30/1980. 		RM 329542
_________________________________________________________________________

252.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie Range: Headquarters Trail at The Summit rest area of I-80, ca 6 air mi SE of Laramie.  Elev. 8720 ft.
T15N R72W S26 NW1/4; also SE1/4.  
Aspen-mountain big sagebrush grassland on calcareous soils; with Artemisia tripartita, Festuca idahoensis, Eriogonum umbellatum. cpDNA voucher specimen. Phenology: flowering & fruiting. 

Walter Fertig, 15286.  8/1/1994. 		RM 602324	Barcode: RM0280836
     with Jane Struttmann
_________________________________________________________________________

253.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Sheep Mountain: near Halls Creek.  Elev. 8500 ft.
T15N R77W S17.  41.2679 N, 106.0618 W; uncertainty 1 mi..  
Douglas fir clearing. Phenology: flowering & fruiting. 

Webster B. Jones, 175.  8/19/1970. 		USFS 402538	Barcode: USFS0071466
_________________________________________________________________________

254.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: North Fork Encampment River, ca 7.5 air mi SW of Encampment.  Elev. 8500 ft.
T14N R85W S26.  41.1565 N, 106.9172 W; uncertainty 1 mi..  
Occasional in moist woods and clearings. flowers pale pink-purple. Phenology: flowering & fruiting. 

Roger L. Williams, 391.  8/10/1986. 		RM 394856	Barcode: RM0280837
_________________________________________________________________________

255.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: North Fork Encampment River, ca 3 air mi SW of Encampment.  Elev. 7600 ft.
T14N R84W S16.  41.1822 N, 106.844 W; uncertainty 1 mi..  
Few plants in dry open basin. Flowers whitish. Phenology: flowering & fruiting. 

Roger L. Williams, 550.  7/5/1987. 		RM 396697
_________________________________________________________________________

256.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Battle Mountain, south face of mountain, Mexican Ridge, 9 air mi E Savery.  Elev. 8000 ft.
T12N R88W S11.  
Populus tremuloides overstory. Phenology: flowering & fruiting. 

Francis B. Current, 680.  8/10/1979. 		RM 335740
_________________________________________________________________________

257.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Tie City.
Moist woods. Phenology: flowering & fruiting. 

Aven Nelson, s.n..  7/20/1900. 		RM 29095	Barcode: RM0280739
_________________________________________________________________________

258.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Tie City.
Moist woods. Phenology: flowering & fruiting. 

Aven Nelson, s. n..  7/20/1900. 		RM 169259	Barcode: RM0280740
_________________________________________________________________________

259.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Cummins.  Elev. 7580 ft.
T13N R77W S34 NE1/4; also S35 NW1/4.  41.0577 N, 106.0131 W.  
Phenology: flowering & fruiting. 

Aven Nelson, 1512.  7/31/1895. 		RM 5104	Barcode: RM0280741
_________________________________________________________________________

260.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Telephone Mines.
Alpine parks. Phenology: flowering & fruiting. 

Aven Nelson, 7948.  8/3/1900. 		RM 29096
_________________________________________________________________________

261.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Bridger Peak.  Elev. 9000-11000 ft.
T14N R86W S14.  41.1865 N, 107.0317 W; NAD 83, uncertainty 0.5 mi., Digital Map.  
Open flats. Phenology: flowering & fruiting. 

Leslie N. Goodding, 2009.  8/24/1903. 		RM 52135	Barcode: RM0280743
_________________________________________________________________________

262.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Laramie.  Elev. 7200 ft.
T16N R73W S33.  41.3133 N, 105.5844 W; uncertainty 2 mi..  
Pine woods. Phenology: flowering & fruiting. 

J. Francis Macbride, 2476.  6/18/1913. 		RM 302785	Barcode: RM0280742
_________________________________________________________________________

263.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

Aven Nelson, s. n..  7/2/1934. 		RM 223398	Barcode: RM0280744
_________________________________________________________________________

264.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

Ray J. Davis, s. n..  7/20/1934. 		RM 222865	Barcode: RM0280745
_________________________________________________________________________

265.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Jackson County: SE of Steamboat Springs at junction of U.S. Hwy 40 and Colo Hwy 14 to Walden.
Roadside, ashy soil. Phenology: flowering & fruiting. 

Scott Sundberg, 2581.  8/9/1984. 		RM 542629
     with E. Lee
_________________________________________________________________________

266.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Estes Park.  Elev. 8000 ft.
Phenology: flowering & fruiting. 

W. S. Cooper, 10.  7/28/2004. 		RM 48395
_________________________________________________________________________

267.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

Harry Hapeman, s. n..  8/26/1896. 		RM 223399
_________________________________________________________________________

268.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: Between Buford and Trappers Lake.  Elev. 2550 m.
Heads small; phyllaries with glutinous spot, inner one fimbriate; leaves little decurrent, white beneath; inflorescence openly branched; flowers white. Phenology: flowering & fruiting. 

William A. Weber, 17800.  7/8/1986. 		RM 580904
_________________________________________________________________________

269.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, San Juan County: U.S. Hwy 550 to Silverton, just N of La Plata county.  Elev. 8600 ft.
In opening in aspen forest. Plants perennial, reproducing by root sprouts; flowers very pale yellow; leaves not decurrent. Phenology: fertile. 

Gerald B. Ownbey, 2641.  8/18/1958. 		RM 262347
     with Yu-tseng Hsi
_________________________________________________________________________

270.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Cameron Pass.  Elev. 10285 ft.
Phenology: flowering & fruiting. 

Harry Hapeman, s. n..  8/23/1936. 		RM 223400
_________________________________________________________________________

271.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Pingree Park Road.
Phenology: flowering & fruiting. 

Harry Hapeman, s. n..  8/29/1936. 		RM 223378
_________________________________________________________________________

272.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Montrose County: 20 mi W of Montrose.  Elev. 7500 ft.
Dry hills. Phenology: flowering & fruiting. 

Edwin B. Payson, 913.  8/12/1915. 		RM 81878
_________________________________________________________________________

273.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

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

C. S. Crandall, s. n..  7/10/1896. 		RM 8415
_________________________________________________________________________

274.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Bosworth's  Elev. 7500 ft.
Phenology: flowering & fruiting. 

C. S. Crandall, 2802.  7/10/1896. 		RM 47233
_________________________________________________________________________

275.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Along Colo Hwy 7, 7.6 mi from junction with Colo Hwy 36.  Elev. 9000 ft.
T4N R73W S27.  
Moist meadow. Phenology: flowering & fruiting. 

Thomas W. Nelson, 7924.  7/3/1985. 		RM 568394
     with Jane P. Nelson
_________________________________________________________________________

276.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Along Colo Hwy 36, 5 mi from Estes Park.  Elev. 7800 ft.
T4N R72W S2.  
Juniper-pine woodland. Phenology: flowering & fruiting. 

Thomas W. Nelson, 6620.  6/30/1981. 		RM 568629
     with Jane P. Nelson
_________________________________________________________________________

277.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Along Colo Hwy 36, 5 mi E of Estes Park.  Elev. 7800 ft.
T4N R72W S4.  
Juniper pine woodland. Phenology: flowering & fruiting. 

Thomas W. Nelson, 6620.  6/30/1981. 		RM 568628
     with Jane P. Nelson
_________________________________________________________________________

278.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Lake Eldora.  Elev. 9300 ft.
Hill sides. Phenology: flowering & fruiting. 

Ira W. Clokey, 3213.  8/6/1918. 		RM 157703
_________________________________________________________________________

279.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Ward.  Elev. 2650 m.
Open woods. Phenology: flowering & fruiting. 

Ellsworth Bethel, 4408.  7/20/1921. 		RM 90089
     with H. M. Schmoll
_________________________________________________________________________

280.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Lake Eldora.  Elev. 9300 ft.
Hillsides. Phenology: flowering & fruiting. 

Ira W. Clokey, 3213.  8/6/1918. 		RM 95406
_________________________________________________________________________

281.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Near Boulder.  Elev. 5000-6000 ft.
Plains and foothills. Phenology: flowering & fruiting. 

Frank Tweedy, 5852.  7//1903. 		RM 47885
_________________________________________________________________________

282.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Mountains between Sunshine and Ward.  Elev. 9500 ft.
Phenology: flowering & fruiting. 

Frank Tweedy, 4870.  8//1902. 		RM 43047
_________________________________________________________________________

283.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: 1 mi W of Windy Point.  Elev. 9500 ft.
T49N R15W.  
Rocky talus. Phenology: flowering & fruiting. 

William A. Weber, 3665.  8/28/1947. 		RM 210154
_________________________________________________________________________

284.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Boulder County: Middle Saint Vrain Canyon.
Phenology: flowering & fruiting. 

Henrietta L. Zobel, s. n..  7/12/1939. 		RM 222863
_________________________________________________________________________

285.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Rock Creek burn west.  Elev. 9300 ft.
T18N R78W S13.  
1955 burn. Phenology: flowering & fruiting. 

G. A. Goodwin, s.n..  8/16/1974. 		RM 294199
_________________________________________________________________________

286.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Stratton Hydrology Study Area: Sane Creek.  Elev. 7000-8000 ft.
T17N R87W S25.  41.4181 N, 107.1381 W; uncertainty 1 mi..  
Sagebrush rangeland. Phenology: flowering & fruiting. 

Max H. Schroeder, s.n..  7/31/1973. 		RM 338136	Barcode: RM0280734
     with Gary L. Ranck
_________________________________________________________________________

287.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Stratton Hydrology Study Area.  Elev. 7000-8000 ft.
T17N R86W-R87W.  
Sagebrush rangeland. Phenology: flowering & fruiting. 

Max H. Schroeder, s.n..  //. 		RM 338095	Barcode: RM0280736
     with Gary L. Ranck
_________________________________________________________________________

288.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Stratton Hydrology Study Area.  Elev. 7000-8000 ft.
T17N R86W-R87W.  
Sagebrush rangeland. Phenology: flowering. 

Max H. Schroeder, s.n..  //. 		RM 338096	Barcode: RM0280735
     with Gary L. Ranck
_________________________________________________________________________

289.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: ridge between Eagle and Beaver creeks above the Laramie River, ca 6 air mi SSW of Woods Landing; ca 31 air mi SW of Laramie.  Elev. 8120-8520 ft.
T12N R77W S5 SE1/4; also NE1/4 S8 and NW1/4 S9.  41.0335 N, 106.0591 W to 41.0286 N, 106.0481 W; NAD 83, , GPS reading.  
Sagebrush meadow with scattered limber pine. Phenology: flowering. 

B. E. Nelson, 72889.  7/10/2007. 		RM 916745	Barcode: RM0076445
_________________________________________________________________________

290.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: ca 0.8 air mi N of Colorado and ca 1 air mi E of North Platte River, ca 40 air mi SE of Saratoga.  Elev. 8080-8200 ft.
T12N R80W S13 NE1/4.  41.0118 N, 106.3291 W; NAD 83, , GPS reading.  
Scrub aspen with sagebrush, bitterbrush, and scattered lodgepole pine. Phenology: flowering. 

B. E. Nelson, 73083.  7/17/2007. 		RM 916744	Barcode: RM0076444
_________________________________________________________________________

291.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Platte River Wilderness: along Trail 506 and Douglas Creek, 1 air mi E of Pike Pole Campground, ca 44 air mi SW of Laramie; ca 29 air mi SE of Saratoga.  Elev. 7458 ft.
T14N R80W S32.  41.1341 N, 106.4203 W; WGS 84, , GPS reading.  
Mixed spruce-fir forest along creek. Phenology: flowering. 

Laura E. Lukas, 1464.  6/27/2007. 		RM 916729	Barcode: RM0076427
_________________________________________________________________________

292.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Sixmile Creek and Lost Park area, ca 3 air mi SW of Pelton Creek Campground, ca 40 air mi SW of Laramie; ca 36 sir mi SE of Saratoga.  Elev. 8755 ft.
T13N R80W S25; also S26.  41.0552 N, 106.3546 W; WGS 84, , GPS reading.  
Lodgepole pine forest. Phenology: flowering. 

Laura E. Lukas, 1552.  6/29/2007. 		RM 916747	Barcode: RM0076447
_________________________________________________________________________

293.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Clark Park, SE of intersection of Forest Road 101 (Sand Lake Road) and Forest Road 323, ca 7 air mi NNW of Centennial.  Elev. 9587-9914 ft.
T16N R78W S5.  41.3862 N, 106.1844 W; WGS 84, , GPS reading.  
Park. Phenology: flowering. 

Laura E. Lukas, 2000.  7/5/2007. 		RM 916746	Barcode: RM0076446
_________________________________________________________________________

294.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: North French Creek at intersection of Forest Road 227 (North French Creek Road)  and Forest Road 225 (South French Creek Road), ca 20 air mi SE of Saratoga.  Elev. 8612-8644 ft.
T15N R81W S11.  41.2835 N, 106.4585 W to 41.2835 N, 106.4584 W; WGS 84, , GPS reading.  
Wet meadow. Phenology: flowering. 

Laura E. Lukas, 2223.  7/13/2007. 		RM 916728	Barcode: RM0076429
_________________________________________________________________________

295.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Barrett Creek, along Forest Road 225 (South French Creek Road), ca 3 air mi S of Wyo Hwy 130, ca 20 air mi SE of Saratoga.  Elev. 8919 ft.
T15N R81W S3.  41.2922 N, 106.4859 W; WGS 84, , GPS reading.  
Moist woods. Phenology: flowering. 

Laura E. Lukas, 2359.  7/15/2007. 		RM 916727	Barcode: RM0076428
_________________________________________________________________________

296.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Swan Creek and Douglas Creek, just S of Bobbie Thomson Campground, ca 37 air mi SW of Laramie.  Elev. 8741 ft.
T14N R79W S27.  41.1471 N, 106.2534 W; WGS 84, , GPS reading.  
Woods. Phenology: flowering. 

Laura E. Lukas, 2623.  7/16/2007. 		RM 916726	Barcode: RM0076471
_________________________________________________________________________

297.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Little Beaver Creek, along Forest Road 542 (Keystone Road), 0.5 air mi NE of Keystone, ca 11 air mi SSW of Centennial.  Elev. 8862-8894 ft.
T14N R79W S22.  41.1702 N, 106.2487 W to 41.1695 N, 106.2489 W; WGS 84, , GPS reading.  
Wet, open forest along creek. Phenology: flowering. 

Laura E. Lukas, 2696.  7/18/2007. 		RM 916725	Barcode: RM0076470
_________________________________________________________________________

298.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: S of Elkhorn Creek and North Platte River area W of Forest Road 534, ca 48 air mi SW of Saratoga.  Elev. 8208 ft.
T12N R80W S13; also S14.  41.003 N, 106.3306 W; WGS 84, , GPS reading.  
Meadow between creek and dry sagebrush flats. Phenology: flowering. 

Laura E. Lukas, 2991.  7/20/2007. 		RM 916724	Barcode: RM0076469
_________________________________________________________________________

299.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: near Lake Owen Creek, ca 1 air mi E of Lake Owen, ca 11 air mi S of Centennial.  Elev. 7639-8220 ft.
T14N R77W S30; also S31 and S32.  41.1448 N, 106.0652 W to 41.1399 N, 106.0583 W; WGS 84, , GPS reading.  
Unbrunt, mixed conifer and aspen grove on edge of steppe. Phenology: flowering. 

Laura E. Lukas, 3219.  7/25/2007. 		RM 916723	Barcode: RM0076468
_________________________________________________________________________

300.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: South French Creek, ca 2 air mi W of intersection of Forest roads 225 and 206, ca 23 air mi SE of Saratoga.  Elev. 8073-8566 ft.
T15N R81W S23; also S24 and S26.  41.2407 N, 106.4568 W to 41.2485 N, 106.4522 W; WGS 84, , GPS reading.  
In conifer-aspen forest. Phenology: flowering. 

Laura E. Lukas, 3471.  7/30/2007. 		RM 916722	Barcode: RM0076467
_________________________________________________________________________

301.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Mullen Creek, ca 1 air mi E of intersection of Forest Road 500 (French Creek Road) and Forest Road 225 (South French Creek Road), ca 26 air mi SE of Saratoga.  Elev. 8752 ft.
T15N R80W S28; also S30.  41.2305 N, 106.4011 W; WGS 84, , GPS reading.  
Edge of forest and pond. Phenology: flowering & fruiting. 

Laura E. Lukas, 3618.  7/30/2007. 		RM 927636	Barcode: RM0087673
_________________________________________________________________________

302.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: North Fork area, just NW of North Fork Campground, running NW along Forest Road 101 (Sand Lake Road), ca 1 air mi SE of Clark Park, ca 6 air mi NW of Centennial.  Elev. 9245-9578 ft.
T16N R78W S5; also S6, S7; also S8.  41.3649 N, 106.1766 W to 41.3759 N, 106.1905 W to 41.3781 N, 106.1906 W; WGS 84, , GPS reading.  
Mixed conifer forest, southwest-facing slope, Vaccinium understory. Phenology: flowering. 

Laura E. Lukas, 3655.  8/1/2007. 		RM 916721	Barcode: RM0076466
_________________________________________________________________________

303.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: South French Creek, just S of Forest Road 236, ca 2 air mi NE of intersection of Forest Road 225 (South French Creek Road) and Forest Road 236, ca 25 air mi SE of Saratoga and 12 air mi W of Centennial.  Elev. 8710 ft.
T15N R80W S16.  41.2711 N, 106.3821 W; WGS 84, , GPS reading.  
Edge of conifer forest and dry meadow. Phenology: flowering & fruiting. 

Laura E. Lukas, 4257.  8/8/2007. 		RM 916720	Barcode: RM0076465
_________________________________________________________________________

304.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: along Forest Road 208 1F, ca 1 air mi S of South Fork Corral Creek, ca 5 air mi S of Ryan Park; ca 21 air mi SE of Saratoga.  Elev. 8973 ft.
T15N R81W S21; also S22.  41.2553 N, 106.4938 W; WGS 84, , GPS reading.  
Lodgepole pine and spruce forest along creek. Phenology: fruiting. 

Laura E. Lukas, 4460.  8/13/2007. 		RM 916719	Barcode: RM0076464
_________________________________________________________________________

305.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: just S of intersection of Forest roads 232 and 210, ca 1 air mi W of Ryan Park; ca 17 air mi SE of Saratoga.  Elev. 8885 ft.
T16N R81W S29; also S32.  41.3196 N, 106.5269 W; WGS 84, , GPS reading.  
Meadow near pond. Phenology: fruiting. 

Laura E. Lukas, 4474.  8/13/2007. 		RM 916718	Barcode: RM0076463
_________________________________________________________________________

306.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Indian Creek, just N of Forest Road 527, ca 1 air mi from intersection of Forest Road 517 (Dry Park Road) and Forest Road 575, ca 11 air mi SSW of Centennial.  Elev. 9099-9220 ft.
T14N R78W S29.  41.1511 N, 106.185 W to 41.1517 N, 106.1851 W; WGS 84, , GPS reading.  
Clearing in forest. Phenology: flowering. 

Laura E. Lukas, 4677.  8/15/2007. 		RM 916717	Barcode: RM0076462
_________________________________________________________________________

307.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: summit and north slope of Jelm Mountain, ca 24.7 air mi SW of Laramie.  Elev. 9200-9656 ft.
T13N R77W S13 NE1/4.  41.1009 N, 105.9784 W; NAD 83, , GPS reading.  
Lodgepole pine forest with outcrop ridge. Phenology: flowering. 

B. E. Nelson, 75893.  7/31/2008. 		RM 916731	Barcode: RM0076431
_________________________________________________________________________

308.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: Miner Creek and canyons and ridge to the NW, ca 1/4 below confluence of North and South forks, ca 4 air mi SSW of Encampment.  Elev. 7650-8160 ft.
T14N R84W S27 SE1/4.  41.153 N, 106.8215 W to 41.1485 N, 106.8183 W; NAD 83, , GPS reading.  
Easterly-facing sagebrush slope. Phenology: flowering. 

B. E. Nelson, 76065.  8/5/2008. 		RM 929552	Barcode: RM0090384
_________________________________________________________________________

309.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Platte River Wilderness: surrounding confluence of Devils Gate Creek and Douglas Creek, ca 4 air mi SE of Trail 506 Trailhead and Pike Pole Campground, ca 17 air mi SSW of Centennial.  Elev. 8017-8025 ft.
T13N R80W S3; also S10.  41.114 N, 106.3682 W to 41.1123 N, 106.3721 W; WGS 84, , GPS reading.  
Edge of sagebrush and forest. Phenology: flowering. 

Laura E. Lukas, 5946.  7/9/2008. 		RM 916716	Barcode: RM0076461
     with Patricia E. Lukas
_________________________________________________________________________

310.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Savage Run Wilderness: along Cottonwood Creek and Trail 502, ca 1 mi from trailhead, ca 15 air mi SW of Centennial.  Elev. 8228 ft.
T14N R80W S15; also S16.  41.1733 N, 106.3788 W; WGS 84, , GPS reading.  
Wet meadow. Phenology: flowering. 

Laura E. Lukas, 6082.  7/13/2008. 		RM 916743	Barcode: RM0076443
     with Patricia E. Lukas
_________________________________________________________________________

311.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: along Fourmile Creek near the end of improved Forest Road 329 (Fallen Pines Road), ca 1.5 air mi S of Morgan, ca 12 air mi N of Centennial; ca 10 SE of Arlington.  Elev. 9300 ft.
T17N R78W S10; also S11.  41.4629 N, 106.1398 W; WGS 84, , GPS reading.  
Along creek in mixed conifer forest. Phenology: flowering & fruiting. 

Laura E. Lukas, 6378.  7/22/2008. 		RM 916742	Barcode: RM0076442
_________________________________________________________________________

312.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: ca 0.5 air mi SW of Sevenmile Lake, along Sevenmile Creek, ca 10 air mi N on Centennial; ca 21 air mi S of Arlington.  Elev. 9759 ft.
T17N R78W S22.  41.4317 N, 106.1435 W; WGS 84, , GPS reading.  
Park. Phenology: flowering & fruiting. 

Laura E. Lukas, 6434.  7/22/2008. 		RM 927635	Barcode: RM0087672
_________________________________________________________________________

313.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: area surrounding Lincoln Park Campground, ca 4 air mi N of Ryan Park; ca 16 air mi SE of Saratoga.  Elev. 8030 ft.
T16N R81W S5; also S8 and S9.  41.3755 N, 106.5133 W; WGS 84, , GPS reading.  
Sagebrush steppe along road. Phenology: flowering. 

Laura E. Lukas, 6601.  7/23/2008. 		RM 916741	Barcode: RM0076441
_________________________________________________________________________

314.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Sawmill Park, S of intersection of Forest roads 120 and 120.2F, ca 8 air mi SW of Arlington; ca 19 air mi  NW of Centennial.  Elev. 8905 ft.
T18N R80W S13; also T18N R79W S18.  41.5347 N, 106.3244 W; WGS 84, , GPS reading.  
Dry meadow uphill from park. Phenology: flowering. 

Laura E. Lukas, 6894.  7/25/2008. 		RM 916740	Barcode: RM0076440
_________________________________________________________________________

315.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Mill Creek along Forest Road 241, near intersection with Forest Road 200.3G, ca 17 air mi W of Centennial; ca 2 air mi N of Ryan Park.  Elev. 8712 ft.
T16N R81W S15; also S22.  41.3452 N, 106.4762 W; WGS 84, , GPS reading.  
Mixed conifer forest. Phenology: flowering. 

Laura E. Lukas, 7017.  7/28/2008. 		RM 916739	Barcode: RM0076439
_________________________________________________________________________

316.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Lime Kiln Park, SW of Forest Road 261 (Cedar Pass Road), ca 14 air mi E of Saratoga; ca 7 air mi N of Ryan Park.  Elev. 8815 ft.
T17N R81W S19; also S20.  41.4277 N, 106.5354 W; WGS 84, , GPS reading.  
Dry park. Phenology: flowering. 

Laura E. Lukas, 7127.  7/30/2008. 		RM 916738	Barcode: RM0076438
_________________________________________________________________________

317.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: vicinity of Pass Creek, S of intersection of Forest Road 261 (Cedar Pass Road) and Forest Road 134, ca 18 air mi E of Saratoga; ca 15 air mi SW of Arlington.  Elev. 8367 ft.
T17N R81W S1; also T18N R81W S36.  41.4837 N, 106.4533 W; WGS 84, , GPS reading.  
Meadow uphill from creek, scattered pines. Phenology: flowering. 

Laura E. Lukas, 7247.  7/30/2008. 		RM 916737	Barcode: RM0076437
_________________________________________________________________________

318.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: wetlands S of Forest Road 101 (Sand Lake Road), ca 1 air mi S of intersection with Forest Road 104, ca 40 air mi WNW of Laramie; ca 10 air mi SW of Arlington.  Elev. 9146 ft.
T17N R80W S1.  41.4825 N, 106.3262 W; WGS 84, , GPS reading.  
Park and open forest. Phenology: flowering. 

Laura E. Lukas, 7838.  8/11/2008. 		RM 916736	Barcode: RM0076436
_________________________________________________________________________

319.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Game and Fish Trail 386 W, on west slope of Sheep Mountain, ca 27 air mi W of Laramie; ca 4 air mi NW of Woods Landing.  Elev. 8072 ft.
T14N R77W S20; also S21.  41.1416 N, 106.0682 W; WGS 84, , GPS reading.  
Draw with aspen overstory in sagebrush steppe. Phenology: flowering. 

Laura E. Lukas, 8081.  8/13/2008. 		RM 916732	Barcode: RM0076432
_________________________________________________________________________

320.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Sheep Mountain, along Trail 386 (Sheep Mountain Trail), near top of Chokecherry Creek, ca 23 air mi WSW of Laramie; ca 7 air mi SE of Centennial.  Elev. 9209 ft.
T15N R77W S27.  41.2439 N, 106.0319 W; WGS 84, , GPS reading.  
Mixed conifer forest with open canopy in gravelly granite soil. Phenology: flowering. 

Laura E. Lukas, 8396.  8/23/2008. 		RM 916735	Barcode: RM0076435
     with Bernadette Kuhn
_________________________________________________________________________

321.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Albany County: Medicine Bow Mountains: Sheep Mountain, starting at Trail 386 (Sheep Mountain Trail) along Johns Creek and ending at top of ridge, ca 23 air mi WSW of Laramie; ca 7 air mi SE of Centennial.  Elev. 9069 ft.
T15N R77W S28; also S21.  41.2507 N, 106.0399 W; WGS 84, , GPS reading.  
Mixed conifer forest, along creek. Phenology: flowering. 

Laura E. Lukas, 8482.  8/23/2008. 		RM 916734	Barcode: RM0076434
     with Bernadette Kuhn
_________________________________________________________________________

322.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: North Fork Rock Creek, ca 1 air mi W of intersection of Forest Road 101 (Sand Lake Road) and Forest Road 101E, ca 12 air mi NNW of Centennial; ca 9 air mi S of Arlington.  Elev. 9732 ft.
T17N R79W S11; also S1.  41.459 N, 106.2326 W; WGS 84, , GPS reading.  
Edge of conifer forest and fen. Phenology: flowering. 

Laura E. Lukas, 8589.  8/31/2008. 		RM 916733	Barcode: RM0076433
_________________________________________________________________________

323.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Larimer County: Mount Cameron.
Phenology: flowering. 

George E. Osterhout, 3805.  8/15/1908. 		RM 178281
_________________________________________________________________________

324.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: along French Creek, just S and SW of intersection of County Road 660 (French/Holmes Road) and BLM Road 3404, ca 33 air mi ESE of Encampment.  Elev. 7745 ft.
T14N R81W S5.  41.211 N, 106.5234 W; NAD 83, , GPS reading.  
Along creek, sagebrush hills. Phenology: flowering. 

Laura E. Lukas, 9793.  7/7/2009. 		RM 929556	Barcode: RM0090388
_________________________________________________________________________

325.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: W of the Platte River Wilderness, just W and SW of Elkhorn Point, ca 20 air mi SE of Encampment and ca 4 air mi N of Colorado.  Elev. 7717 ft.
T13N R80W S30.  41.059 N, 106.42 W; NAD 83, , GPS reading.  
Sagebrush hills. Phenology: flowering. 

Laura E. Lukas, 10064.  7/13/2009. 		RM 929555	Barcode: RM0090387
_________________________________________________________________________

326.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: W of Platte River Wilderness, just NW of Elkhorn Point, ca 20 air mi SE of Encampment and ca 5 air mi N of Colorado.  Elev. 8353-8459 ft.
T13N R80W S19.  41.0717 N, 106.4251 W to 41.0784 N, 106.4204 W; NAD 83, , GPS reading.  
Aspen and Douglas fir groves among sagebrush hills. Phenology: flowering. 

Laura E. Lukas, 10147.  7/13/2009. 		RM 929554	Barcode: RM0090386
_________________________________________________________________________

327.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: just S of I-80, Wagonhound Road and Bear Creek, ca 3.5 air mi NW of exit 267 (Wagonhound) and ca 4 air mi SE of Elk Mountain (town).  Elev. 7505 ft.
T19N R80W S2.  41.6545 N, 106.3471 W; NAD 83, , GPS reading.  
Stream banks in sagebrush hills. Phenology: flowering. 

Laura E. Lukas, 10463.  7/20/2009. 		RM 916715	Barcode: RM0076460
_________________________________________________________________________

328.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: area between Bitter and Cedar creeks, along BLM Road 3417, ca 11 air mi E of Saratoga and ca 10 air mi NW of Ryan Park.  Elev. 8288 ft.
T17N R82W S14; also S15.  41.4494 N, 106.5844 W; NAD 83, , GPS reading.  
Aspen forest in drainage surrounded by sagebrush hills. Phenology: flowering. 

Laura E. Lukas, 11120.  8/24/2009. 		RM 929553	Barcode: RM0090385
_________________________________________________________________________

329.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: west side of Battle Mountain, ca 9 air mi E of Savery.  Elev. 7280 ft.
T12N R88W S5 SE1/4.  
Dry gravelly sagebrush steppe within mixed shrubland, west aspect, 5% slope, with Artemisia tridentata, Purshia tridentata, Festuca idahoensis. Phenology: flowering. 

Bonnie Heidel, 3365.  7/30/2009. 		RM 841592	Barcode: RM0047660
_________________________________________________________________________

330.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Gore Range: Arapaho National Forest: North Rock Creek near boundary of Eagles Nest Wilderness, ca 7 air mi NW of Silverthorne and ca 9 air mi SSE of Green Mountain Reservoir.  Elev. 9480-9620 ft.
T4S R78W S18 W1/2.  39.7108 N, 106.1673 W to 39.7035 N, 106.1702 W; NAD 83, , GPS reading.  
Mixed conifer forest and openings. Phenology: flowering. 

Michael K. Kirkpatrick, 2584.  7/8/2010. 		RM 
_________________________________________________________________________

331.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Gore Range: Arapaho National Forest: Buffalo Mountain Trail along Ryan Gulch below Eagles Nest Wilderness , ca 2.5 air mi WSW of Silverthorne.  Elev. 9760-10400 ft.
T5S R78W S15 NW1/4.  39.6204 N, 106.11 W to 39.6204 N, 106.123 W; NAD 83, , GPS reading.  
Dry lodgepole pine forest and meadow openings. Phenology: flowering. 

Michael K. Kirkpatrick, 3214.  7/23/2010. 		RM 
_________________________________________________________________________

332.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Williams Fork Mountains: Arapaho National Forest: Cottonwood Gulch, ca 3 air mi E of Green Mountain Reservoir and 4 air mi ENE of Heeney.  Elev. 8800-9240 ft.
T2S R79W S16 N1/2.  39.88 N, 106.2428 W; NAD 83, , GPS reading.  
Drainage flanked by aspen and Douglas fir. Phenology: flowering. 

Michael K. Kirkpatrick, 3872.  8/4/2010. 		RM 
_________________________________________________________________________

333.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Gore Range: Arapaho National Forest: Eagles Nest Wilderness: from ca 1 air mi N of Surprise Lake N to the wilderness boundary just S of Cataract Creek, ca 18.5-19 air mi NW of Silverthorne at I-70.  Elev. 8700-9350 ft.
T3S R80W S1 NW1/4; also T2S R80W S36 SW1/4; also E1/2 S35.  39.8257 N, 106.306 W to 39.8346 N, 106.3101 W; NAD 83, , GPS reading.  
Aspen forest with subalpine fir. Phenology: flowering. 

B. E. Nelson, 83408.  7/25/2011. 		USFS 898331	Barcode: USFS0060048
_________________________________________________________________________

334.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Gore Range: from the end of Dice Hill or BLM Road 2750, ca 3/4 mi S to Dice Hill, ca 8-9 air mi SSW of Kremmling.  Elev. 9640-9700 ft.
T1S R81W S27 E1/2.  39.9468 N, 106.4385 W to 39.9387 N, 106.4413 W; NAD 83, , GPS reading.  
Second growth lodgepole pine with scattered spruce-fir-Douglas fir-aspen. Phenology: flowering. 

B. E. Nelson, 83694.  8/16/2011. 		RM 
_________________________________________________________________________

335.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Gore Range: Arapaho National Forest: along Forest Road 1832, ca 2 air mi ENE of Sheep Mountain, ca 25.5 air mi NW of Silverthorne at I-70.  Elev. 9420 ft.
T2S R81W S13 NE1/4.  39.893 N, 106.4038 W; NAD 83, , GPS reading.  
Open aspen forest with scattered lodgepole pine and fir. Phenology: flowering & fruiting. 

B. E. Nelson, 83829.  8/17/2011. 		RM 
_________________________________________________________________________

336.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Williams Fork Mountains: Arapaho National Forest: lower end of Miller Gulch above Green Mountain Reservoir and Colo Hwy 9, ca 18 air mi NNW of Silverthorne at I-70.  Elev. 7950-8200 ft.
T2S R79W S28 NE1/4.  39.8539 N, 106.2351 W; NAD 83, , GPS reading.  
Open Douglas fir on northerly-facing slope on shaly clay Phenology: flowering. 

B. E. Nelson, 83880.  8/22/2011. 		RM 
_________________________________________________________________________

337.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Gore Range: White River National Forest: Elliott Ridge from ca 1/3 mi S of the trailhead at Blue Lake to the first saddle, ca 13-13.5 air mi N of Vail.  Elev. 11200-11360 ft.
T3S R81W S2 N1/2.  39.8354 N, 106.4214 W to 39.8313 N, 106.4154 W; NAD 83, , GPS reading.  
Dry, rocky slopes. Phenology: flowering & fruiting. 

B. E. Nelson, 83960.  8/22/2011. 		RM 
_________________________________________________________________________

338.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Blue Valley Ranch.  Elev. 8636 ft.
zone 13, 376964E, 4426332N; unknown, Specimen Label.  
Mixed conifer forest with opening and scattered aspen along road. Phenology: fruiting. 

Jeanette Flaig, 8177.  7/16/2008. 		RM 828119
_________________________________________________________________________

339.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Grand County: Blue Valley Ranch: E of Colo Hwy 9; E of Derringer Loop.  Elev. 8711 ft.
T1S R80W S13.  zone 13S, 389221E, 4424261N; unknown, Specimen Label.  
Aspen grove. Phenology: flowering & fruiting. 

Jeanette Flaig, 8840.  7/28/2009. 		RM 908255
_________________________________________________________________________

340.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: Green Mountain Road, ca 8 air mi SW of Encampment.  Elev. 9300 ft.
T13N R85W S12.  
Dry roadside. Rare. Phenology: flowering & fruiting. 

Roger L. Williams, 1676.  9/7/2012. 		RM 960102	Barcode: RM0215232
_________________________________________________________________________

341.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Gore Range: White River National Forest: Elliott Ridge from ca 1/3 mi S of the trailhead at Blue Lake to the first saddle, ca 13-13.5 air mi N of Vail.  Elev. 11200-11360 ft.
T3S R81W S2 N1/2.  39.8354 N, 106.4214 W to 39.8313 N, 106.4154 W; NAD 83, , GPS reading.  
Dry, rocky slopes. Phenology: flowering & fruiting. 

B. E. Nelson, 83960.  8/22/2011. 		USFS 	Barcode: USFS0060674
_________________________________________________________________________

342.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: North Fork Encampment River, ca 7 air mi SW of Encampment.  Elev. 8400 ft.
T14N R85W S25.  
Open dry flat. Rare; flowers violet. Phenology: flowering. 

Roger L. Williams, 1730.  8/3/1997. 		RM 959870	Barcode: RM0214617
_________________________________________________________________________

343.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Montrose County: Uncompahgre Plateau: Uncompahgre National Forest: Windy Point and Iron Springs Mesa, Forest Road 507, ca 35 air mi W of Montrose.  Elev. 8550-9562 ft.
T48N R15W S5 NE1/4.  38.4566 N, 108.5355 W to 38.4622 N, 108.534 W; NAD 83, , GPS reading.  
South-facing slopes with sandstone outcrops. Phenology: flowering & fruiting. 

Lori E. Brummer, 1079.  7/26/2010. 		RM 
_________________________________________________________________________

344.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Mesa County: Battlement Mesa: Grand Mesa National Forest: Brush Creek Trail to Battlement Trail, ca 46 air mi NW of Grand Junction.  Elev. 8567-10200 ft.
T8S R93W S25 N1/2; also S24, S13, and S12.  39.3403 N, 107.8408 W to 39.3801 N, 107.8277 W to 39.3747 N, 107.8342 W; GPS reading.  
Open meadow on south-facing slope. Phenology: flowering & fruiting. 

Lori E. Brummer, 1379.  7/30/2010. 		RM 
_________________________________________________________________________

345.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Ouray County: Uncompahgre Plateau: above East Fork Spring Creek, off of Forest Road 532, 3.1 road mi N of Divide or Forest Road 402, ca 17 air mi SSW of Montrose.  Elev. 8810-9100 ft.
T46N R10W S8 W1/2.  38.2623 N, 107.9988 W to 38.2461 N, 108.0019 W; NAD 83, , GPS reading.  
Subalpine meadow. Phenology: flowering. 

Lori E. Brummer, 5917.  7/24/2011. 		RM 
_________________________________________________________________________

346.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Ouray County: Uncompahgre Plateau: Happy Canyon Rim, Forest Road 510.3C off of Dave Wood Road, ca 15 air mil SSW of Montrose.  Elev. 8320-8560 ft.
T47N R10W S33 SE1/4; also S34.  38.282 N, 107.9547 W to 38.2757 N, 107.9677 W; NAD 83, , GPS reading.  
Ponderosa pine on sandstone pavement. Phenology: flowering. 

Lori E. Brummer, 6227.  7/30/2011. 		RM 
     with Joe E. Brummer
_________________________________________________________________________

347.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Sierra Madre: Jack Creek Road, ca 6 air mi WSW of Encampment.  Elev. 8800 ft.
T14N R85W S13.  
Mixed forest. Phenology: flowering & fruiting. 

Roger L. Williams, 1745.  9/1/2014. 		RM 959890	Barcode: RM0214637
_________________________________________________________________________

348.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Teller County: East-central Colorado: Mosquito Range to Plains: Rampart Range: USFS Woodland Park Work Center, 1400 Rampart Range Road or County Road 22, ca 2 road mi N of intersection with U.S. Hwy 24, ca 2 air mi N of Woodland Park.  Elev. 8420-8560 ft.
T12S R68W S7 SW1/4.  39.0202 N, 105.0451 W; uncertainty 1 mi..  
On slopes in open ponderosa pine forest. Phenology: flowering. 

Timothy W. Chumley, 2181.  7/21/1995. 		 
_________________________________________________________________________

349.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Colorado, Douglas County: East-central Colorado: Mosquito Range to Plains: Rampart Range: along Jackson Creek, ca 1 air mi N of intersection of Forest Road 300 or Rampart Range Road and Forest Road 507 or Jackson Creek Road, ca 17 air mi N of Woodland Park.  Elev. 8200-8600 ft.
T9S R69W S22 SE1/4.  39.2511 N, 105.1012 W; uncertainty 1 mi..  
In an open, grassy flat adjacent to the creek. Phenology: flowering. 

Timothy W. Chumley, 2998.  8/8/1995. 		 
_________________________________________________________________________

350.  Cirsium clavatum (M. E. Jones) Petr. var. americanum (A. Gray) D. J. Keil 				Asteraceae

U.S.A., Wyoming, Carbon County: Medicine Bow Mountains: Elk Mountain: along upper Jack Creek to the large springs at the head and vicinity, ca 39 air mi ESE of Rawlins; ca 18.5 air mi NE of Saratoga.  Elev. 9540 ft.
T19N R81W S17.  41.6209 N, 106.5262 W; uncertainty 1 mi..  
Under limber pine. Phenology: flowering. 

B. E. Nelson, 39384.  7/30/1996. 		 
     with Amy J. Roderick
_________________________________________________________________________

351.  Cirsium clavatum (M. E. Jones) Petr. var. clavatum  				Asteraceae

U.S.A., Colorado, Grand County: Blue River Valley: between the river and the north end of Lawson Ridge E of Colo Hwy  9, ca 4 air mi S of Kremmling.  Elev. 7460-7520 ft.
T1N R80W S33 SW1/4.  40.0061 N, 106.3708 W; NAD 83, , GPS reading.  
Clay slopes and bottom of gully in sagebrush. Phenology: flowering & fruiting. 

B. E. Nelson, 83566.  8/15/2011. 		RM 
_________________________________________________________________________

352.  Cirsium clavatum (M. E. Jones) Petr. var. clavatum  				Asteraceae

U.S.A., Colorado, Mesa County: Uncompahgre Plateau: Uncompahgre National Forest: Dominguez Ridge, just off of Brushy Ridge Trail or Forest Road 409, ca 30 air mi WSW of Delta.  Elev. 9068-9080 ft.
T50N R16W S1 SW1/4.  38.6246 N, 108.6094 W to 38.6209 N, 108.6088 W; NAD 83, , GPS reading.  
Gambel oak mixed mountain shrub community. Phenology: flowering. 

Lori E. Brummer, 9536.  7/7/2012. 		RM 
_________________________________________________________________________

353.  Cirsium clavatum (M. E. Jones) Petr. var. clavatum  				Asteraceae

U.S.A., Colorado, Ouray County: San Juan Mountains: Uncompahgre National Forest: Cimarron Ridge; Lou Creek Pass, ridge just S of Lou Creek Pass then W on Lou Creek Pass Trail to ridge above Kennedy Mine, ca 11 air mi NNE of Ridgway.  Elev. 9656-11031 ft.
T46N R7W S24.  38.2277 N, 107.5793 W to 38.2215 N, 107.5926 W; NAD 83, , GPS reading.  
Moist meadow in aspen/spruce/fir mix. Phenology: flowering. 

Lori E. Brummer, 10242.  7/22/2012. 		RM 
_________________________________________________________________________

354.  Cirsium clavatum (M. E. Jones) Petr. var. clavatum  				Asteraceae

U.S.A., Colorado, Gunnison County: Gunnison National Forest: S of McClure Pass, Raggeds Trail 820, ca 23 air mi NW of Paonia.  Elev. 8400-9600 ft.
T11S R89W S11 SE1/4; also E1/2 S13, S23, SE1/4 S22, and E1/2 S27.  39.0676 N, 107.3201 W to 39.0734 N, 107.3171 W to 39.1089 N, 107.2967 W; GPS reading.  
Riparian area in aspen. Phenology: flowering & fruiting. 

Lori E. Brummer, 2223.  8/17/2010. 		RM 
_________________________________________________________________________

355.  Cirsium clavatum (M. E. Jones) Petr. var. clavatum  				Asteraceae

U.S.A., Colorado, Gunnison County: West Elk Mountains: Soap Creek Drainage, along Little Soap Park or Forest Road 721 for ca 1 mi S of park area, ca 28 air mi WNW of Gunnison.  Elev. 8000 ft.
T50N R4W S7 South1/2; also S18 N1/2.  38.59382 N, 107.33591 W; NAD 83, , Nat. Geog. TOPO!.  
Spruce/aspen on gravelly soil with Bromus, Rubus, Symphoricarpos. Phenology: flowering & fruiting. 

Lori E. Brummer, 1996-99.  8/8/1996. 		RM 961209	Barcode: RM0216836
_________________________________________________________________________

356.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gilpin County: Toland.
Phenology: flowering & fruiting. 

George E. Osterhout, 3267.  7/20/1906. 		RM 161096
_________________________________________________________________________

357.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Lake County: Tennessee Pass.
Phenology: flowering & fruiting. 

George E. Osterhout, 3351.  8/15/1906. 		RM 70281
_________________________________________________________________________

358.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Phenology: flowering & fruiting. 

George E. Osterhout, 3362.  8/16/1906. 		RM 159245
_________________________________________________________________________

359.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Rio Blanco County: White River National Forest: Sleepy Cat.  Elev. 10000 ft.
Sandy soil. Phenology: flowering & fruiting. 

William T. Kirkpatrick, 274.  8/10/1913. 		USFS 476114
_________________________________________________________________________

360.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, El Paso County: Ruxton Dell  Elev. 2950 m.
Herbaria Formationum Coloradensium. Phenology: flowering & fruiting. 

F. E. Clements, 386.  8/2/1901. 		RM 34214
     with E. S. Clements
_________________________________________________________________________

361.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Near Breckenridge.  Elev. 9600 ft.
Phenology: flowering & fruiting. 

Kenneth K. Mackenzie, 324.  8//1901. 		RM 30563
_________________________________________________________________________

362.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Phenology: flowering. 

George E. Osterhout, 2707.  6/26/1900. 		RM 159249
_________________________________________________________________________

363.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Clear Creek County: Silver Plume.
Phenology: flowering & fruiting. 

George E. Osterhout, 4260.  7/19/1910. 		RM 169290
_________________________________________________________________________

364.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Phenology: fruiting. 

George E. Osterhout, 3362a.  8/16/1906. 		RM 169295
_________________________________________________________________________

365.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Lake County: Tennessee Pass.
Phenology: fertile. 

George E. Osterhout, 3351.  8/15/1906. 		RM 169289
_________________________________________________________________________

366.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 549) as Carduus griseus x C. parryi, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium griseum x C. parryi with the combination C. xgriseiforme was not validly published.  I do not consider this plant to be a hybrid.-Keil. Phenology: flowering & fruiting. 

George E. Osterhout, 3363.  8/16/1906. 		RM 169296
_________________________________________________________________________

367.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 549) as Carduus griseus x C. parryi, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium griseum x C. parryi with the combination C. xgriseiforme was not validly published.  I do not consider this plant to be a hybrid.-Keil. Phenology: flowering & fruiting. 

George E. Osterhout, 3363.  8/16/1906. 		RM 159507
_________________________________________________________________________

368.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Red Cliff.
Collection cited by Rydberg (1910, Bull. Torrey Bot. Club 37: 549) as Carduus griseus x C. parryi, and by Petrak (1917, Bieh. Bot. Centralbl. 35: 562) as Cirsium griseum x C. parryi with the combination C. xgriseiforme was not validly published.  I do not consider this plant to be a hybrid.-Keil. Phenology: flowering & fruiting. 

George E. Osterhout, 3363.  8/16/1906. 		RM 70282
_________________________________________________________________________

369.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Gore Range: White River National Forest: Eagles Nest Wilderness: Deluge Lake Trail, ca 7 air mi NNW of Vail Pass.  Elev. 8800-10200 ft.
T5S R79W S7; also S8.  39.638 N, 106.2571 W to 39.6278 N, 106.275 W; NAD 83, , GPS reading.  
Rocky aspen hillsides with riparian channels. Phenology: flowering. 

Michael K. Kirkpatrick, 3751.  8/2/2010. 		USFS 898315	Barcode: USFS0060033
_________________________________________________________________________

370.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Summit County: Front Range: Arapaho National Forest: Bakers Tank, Boreas Pass Road (Forest Road 10), ca 3 air mi SE of Breckenridge.  Elev. 10880 ft.
T7S R77W S16 SE1/4 NE1/4.  39.4442 N, 105.9968 W; NAD 83, , GPS reading.  
Riparian meadow with scattered pine and spruce. Phenology: flowering. 

Michael K. Kirkpatrick, 3906.  8/5/2010. 		USFS 898314	Barcode: USFS0059959
_________________________________________________________________________

371.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: unnamed wet meadow along Missouri Creek, ca 15 air mi S of Dowds Junction.  Elev. 10840 ft.
T8S R81W S6 NW1/4 NW1/4.  39.389 N, 106.4918 W; NAD 83, , GPS reading.  
Subalpine fen. Phenology: flowering. 

Michael K. Kirkpatrick, 4523.  8/12/2010. 		RM 
_________________________________________________________________________

372.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Gore Range: White River National Forest: Freeman Creek drainage N of Moniger-Muddy Pass Road (Forest Road 701), ca 5 air mi NW of I-70 exit 176 at Vail.  Elev. 9400-9520 ft.
T4S R81W S22 SW1/4.  39.689 N, 106.4499 W; NAD 83, , GPS reading.  
Dry subalpine meadow. Phenology: flowering. 

Michael K. Kirkpatrick, 4623.  8/22/2010. 		RM 
_________________________________________________________________________

373.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Wurts Ditch Road (Forest Road 705) near the headwaters of Mitchell Creek, ca 2.5 air mi W of Tennessee Pass.  Elev. 10570-10640 ft.
T8S R80W S8 South1/2.  39.3631 N, 106.3615 W to 39.3668 N, 106.3547 W; NAD 83, , GPS reading.  
Subalpine forest, openings, and roadside. Phenology: flowering. 

Michael K. Kirkpatrick, 4656.  8/24/2010. 		RM 
_________________________________________________________________________

374.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Pitkin County: Elk Mountains: White River National Forest: along Avalanche Creek from the trailhead at the end of Forest Road 310 SE to the wilderness boundary, ca 4 air mi NNE of Redstone; ca 11-12 air mi S of Carbondale.  Elev. 7300-7400 ft.
T9S R88W S34.  39.2347 N, 107.2018 W to 39.2304 N, 107.1979 W; NAD 83, , GPS reading.  
Brushy canyon bottom with conifers, aspen, and cottonwood, and streambank. Phenology: flowering. 

B. E. Nelson, 82875.  7/17/2011. 		RM 
_________________________________________________________________________

375.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Pitkin County: Sawatch Range: White River National Forest: along Lincoln Creek between Roaring Fork River and New York Creek, ca 6 air mi W of Independence Pass, ca 10 air mi SE of Aspen.  Elev. 9840-9880 ft.
T11S R83W S8 NE1/4.  39.1038 N, 106.6789 W; NAD 83, , GPS reading.  
Rocky ridge and slopes and edge of lodgepole pine forest. Phenology: flowering. 

B. E. Nelson, 83092.  7/19/2011. 		RM 
_________________________________________________________________________

376.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gunnison County: Elk Mountains: White River National Forest: upper part of Crystal Canyon to Schofield Park, along jeep trail, ca 14 air mi NNW of Crested Butte.  Elev. 10140-10250 ft.
T12S R87W S2 NE1/4; also T11S R87W S35 SE1/4.  39.0452 N, 107.0731 W to 39.0407 N, 107.0653 W; NAD 83, , GPS reading.  
Along riparian area in subalpine. Phenology: flowering. 

Lori E. Brummer, 6380.  8/2/2011. 		RM 
_________________________________________________________________________

377.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gunnison County: Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: Silver Creek Pass and area around Silver Creek Trail, ca 5 air mi NE of Marble.  Elev. 11880-12250 ft.
T11S R87W S9 SE1/4; also NE1/4 S16.  39.1047 N, 107.1125 W to 39.1004 N, 107.1106 W; NAD 83, , GPS reading.  
Rocky alpine ridge and slopes. Phenology: flowering. 

Lori E. Brummer, 7108.  8/16/2011. 		RM 
_________________________________________________________________________

378.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gunnison County: Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: upper East Fork Trail to Maroon Pass, ca 13.5 air mi N of Crested Butte.  Elev. 11740-12745 ft.
T12S R86W S4 NE1/4; also S5 NE1/4 and NE1/4 S9.  39.0387 N, 107.0086 W to 39.036 N, 106.9973 W; NAD 83, , GPS reading.  
Rock outcrop in alpine. Phenology: flowering. 

Lori E. Brummer, 7271.  8/18/2011. 		RM 
_________________________________________________________________________

379.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gunnison County: Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: Hasley Basin Trail from East Fork Trail, ca 13 3/4 air mi NNW of Crested Butte.  Elev. 11140-12100 ft.
T11S R86W S31; also T12S R86W S6 NE1/4.  39.0483 N, 107.0372 W to 39.0395 N, 107.02419 W; NAD 83, , GPS reading.  
Alpine meadow. Phenology: flowering. 

Lori E. Brummer, 7389.  8/19/2011. 		RM 
_________________________________________________________________________

380.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Holy Cross Wilderness: Eagle Lake Trail to Halfmoon Lake, between Eagle and Avalanche peaks, along Lime Creek, ca 18 air mi SSE of Eagle.  Elev. 9400-9800 ft.
T7S R83W S23 N1/2.  39.4335 N, 106.6149 W; NAD 83, , GPS reading.  
Subalpine forest and roadside meadow with seeps. Phenology: flowering. 

Michael K. Kirkpatrick, 7601.  7/21/2011. 		USFS 898313	Barcode: USFS0059977
_________________________________________________________________________

381.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Tellurium Lake Trail, off of Forest Road 506 (Burnt Mountain Road), ca 20 air mi SSE of Eagle.  Elev. 10000-10300 ft.
T7S R83W S3; also T8S R83W S34 and S35.  39.4032 N, 106.6267 W to 39.3808 N, 106.6477 W; NAD 83, , GPS reading.  
Subalpine rocky meadows, boulder fields, and roadside. Phenology: flowering & fruiting. 

Michael K. Kirkpatrick, 7940.  7/27/2011. 		RM 
_________________________________________________________________________

382.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Pitkin County: Sawatch Range: White River National Forest: Collegiate Peaks Wilderness: the Continental Divide from W of Grizzly Peak, ca 15 air mi SE of Aspen.  Elev. 11700-13100 ft.
T11S R82W S31; also S32.  39.0624 N, 106.5813 W to 39.0458 N, 106.5891 W; NAD 83, , GPS reading.  
Alpine slopes and talus fields. Phenology: flowering. 

Michael K. Kirkpatrick, 8469.  8/7/2011. 		RM 
_________________________________________________________________________

383.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Pitkin County: Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: ridge and slopes NW of Mt. Daly and Capitol Peak, E of Capitol Creek, ca 13 air mi W of Aspen.  Elev. 11740-12360 ft.
T10S R87W S14 SW1/4 SE1/4; also NW1/4 NE1/4 S23.  39.1801 N, 107.0743 W to 39.1851 N, 107.0754 W; NAD 83, , GPS reading.  
Alpine ridge with exposed siltstone, granite cliffs, and talus slopes. Phenology: flowering. 

Michael K. Kirkpatrick, 8524.  8/9/2011. 		RM 
_________________________________________________________________________

384.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Gunnison County: Elk Mountains: White River National Forest: Maroon Bells-Snowmass Wilderness: cirque basin between Geneva Lake and Hagerman Peak, ca 7 air mi ENE of Marble.  Elev. 11080-11200 ft.
T11S R87W S11 SE1/4.  39.1035 N, 107.0742 W; NAD 83, , GPS reading.  
Subalpine rocky meadow with willows and forb understory. Phenology: flowering. 

Michael K. Kirkpatrick, 8624.  8/11/2011. 		RM 
_________________________________________________________________________

385.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Delta County: Grand Mesa: Grand Mesa National Forest: Twin Lakes; slope N of Twin Lake #2 south to E side of Twin Lake #1, ca 12 3/4 air mi NE of Cedaredge.  Elev. 10440-10800 ft.
T11S R94W S25 NW1/4.  39.0737 N, 107.8457 W to 39.0652 N, 107.8388 W; NAD 83, , GPS reading.  
Moist subalpine meadows. Phenology: flowering. 

Lori E. Brummer, 9983.  7/18/2012. 		RM 1024288	Barcode: RM0317953
_________________________________________________________________________

386.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Delta County: Grand Mesa: Grand Mesa National Forest: Crag Crest Trail, high point of trail, ca 3.5 trail mi from west trailhead, to ca 1.5 trail mi ENE of trailhead, ca 11 air mi NNW of Cedaredge.  Elev. 10880-11150 ft.
T11S R95W S35 N1/2; also N1/2 S36 and T11S R94W S30 SW1/4.  39.0604 N, 107.946 W to 39.0563 N, 107.9774 W; NAD 83, , GPS reading.  
Along rocky subalpine ridge. Mesa and Delta county. Phenology: flowering. 

Lori E. Brummer, 10085.  7/19/2012. 		RM 1024287	Barcode: RM0317952
_________________________________________________________________________

387.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Delta County: Grand Mesa: Gunnison National Forest: Chalk Mountain, southeast slope to Overland Reservior, ca 17.5 air mi NNW of Paonia.  Elev. 9894-10972 ft.
T11S R92W S14 SW1/4; also E1/2 S15 and SW1/4 S10.  39.0943 N, 107.6417 W to 39.1126 N, 107.6593 W; NAD 83, , GPS reading.  
Subalpine meadow. Phenology: flowering. 

Lori E. Brummer, 10580.  7/29/2012. 		RM 1024286	Barcode: RM0317951
     with Joe E. Brummer
_________________________________________________________________________

388.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Delta County: Grand Mesa: Gunnison National Forest: Chalk Mountain, southeast slope to Overland Reservior, ca 17.5 air mi NNW of Paonia.  Elev. 9894-10972 ft.
T11S R92W S14 SW1/4; also E1/2 S15 and SW1/4 S10.  39.0943 N, 107.6417 W to 39.1126 N, 107.6593 W; NAD 83, , GPS reading.  
Bare north-facing subalpine slope. Phenology: flowering. 

Lori E. Brummer, 10666.  7/29/2012. 		RM 1024285	Barcode: RM0317950
     with Joe E. Brummer
_________________________________________________________________________

389.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Delta County: Grand Mesa: Grand Mesa National Forest: ridge off of Forest Road 129, SE of Kiser Reservoir, ca 9 air mi N of Cedaredge.  Elev. 9996 ft.
T12S R94W S7 NE1/4.  39.0301 N, 107.9341 W; NAD 83, , GPS reading.  
Subalpine meadow. Phenology: flowering. 

Lori E. Brummer, 11765.  9/12/2012. 		RM 1024284	Barcode: RM0317949
_________________________________________________________________________

390.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Eagle County: Sawatch Range: White River National Forest: Holy Cross Wilderness: Eagle Lake Trail to Halfmoon Lake, between Eagle and Avalanche peaks, along Lime Creek, ca 18 air mi SSE of Eagle.  Elev. 9400-9800 ft.
T7S R83W S23 N1/2.  39.4335 N, 106.6149 W; NAD 83, , GPS reading.  
Subalpine forest and roadside meadow with seeps. Phenology: flowering. 

Michael K. Kirkpatrick, 7601.  7/21/2011. 		USFS 	Barcode: USFS0060673
_________________________________________________________________________

391.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Mesa County: Grand Mesa: Grand Mesa National Forest: Skyway Ski Trail and Scales Lakes, ca 30 air mi E of Grand Junction.  Elev. 10600-10820 ft.
T11S R96W S36 SE1/4.  39.0418 N, 108.0624 W; GPS reading.  
Subalpine meadow with rocky outcrops and low wet areas. Phenology: flowering & fruiting. 

Lori E. Brummer, 1416.  8/2/2010. 		RM 1024355	Barcode: RM0317866
     with Bernadette Kuhn, Margarette Lyon
_________________________________________________________________________

392.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Delta County: Grand Mesa: Grand Mesa National Forest: stream below Sackett Reservoir and adjoining roadside, ca 40 air mi E of Grand Junction.  Elev. 10400 ft.
T11S R93W S30 W1/2.  39.0642 N, 107.8313 W; GPS reading.  
Along small stream in moist spruce/fir forest on steep slopes and adjoining roadside. Phenology: flowering. 

Lori E. Brummer, 1621.  8/6/2010. 		RM 1024354	Barcode: RM0317865
_________________________________________________________________________

393.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Mesa County: Grand Mesa: Grand Mesa National Forest: Lands End near Bolen Reservoir, ca 20 air mi ESE of Grand Junction.  Elev. 9800-9962 ft.
T12S R97W S10 NE1/4; also S11.  39.0163 N, 108.2124 W; GPS reading.  
Upland area under spruce next to small creek. Phenology: flowering. 

Lori E. Brummer, 1650.  8/6/2010. 		RM 1024353	Barcode: RM0317864
_________________________________________________________________________

394.  Cirsium clavatum (M. E. Jones) Petr. var. osterhoutii (Rydb.) D. J. Keil 				Asteraceae

U.S.A., Colorado, Mesa County: Uncompahgre Plateau: La Fair Creek off of Divide Road (Forest Road 402), ca 30 air mi W of Delta.  Elev. 8240-8400 ft.
T15S R101W S35 SW1/4.  38.7002 N, 108.6521 W to 38.7064 N, 108.6557 W; NAD 83, , GPS reading.  
Ponderosa pine woodland with scattered aspen. Phenology: flowering. 

Lori E. Brummer, 5495.  7/18/2011. 		RM 1024289	Barcode: RM0317954
     with Linda Deeds, Kim Hansen
_________________________________________________________________________