Record Number Database Code Specimen ID Project Herbarium Accession Number Barcode NPS Accession NPS Catalog Family Genus 1 Specific Epithet 1 Specific Author 1 Infraspecific Rank 1 Infraspecific Epithet 1 Infraspecific Author 1 Name 1 Qualifier Name 1 Qualifier Position Hybrid Symbol Genus 2 Specific Epithet 2 Specific Author 2 Infraspecific Rank 2 Infraspecific Epithet 2 Infraspecific Author 2 Name 2 Qualifier Name 2 Qualifier Position Conservation Status Annotations Site Key Collector Collector Number Other Collectors Day Collected Month Collected Year Collected Verbatim Collection Date Country State County Locality Site Description Minimum Elevation Maximum Elevation Elevation Unit LatitudeLongitude UTM TRS Decimal Latitude Decimal Longitude Geodetic Datum Coordinate Uncertainty Coordinate Uncertainty Unit Elevation Georeferenced TRS Georeferenced Georeference Sources Georeference Remarks Georeferenced By Specimen Notes Other Notes Phenology Cultivated Images Type Specimen? TypeDetails 1 RM 10347 Taylor, Amy 1997 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Amy J. Roderick. RM-615 B. E. Nelson 40369 Amy J. Roderick 18 6 1997 U.S.A. Wyoming Carbon Upper North Platte and Laramie River Drainages: west end of Fort Steele Breaks, W of the North Platte River, ca 6.5 air mi N of Sinclair; ca 10.5 air mi NE of Rawlins. Rough breaks of sandstone and mudstone with intervening draws of sand to clay dominated by sagebrush with hopsage, shadscale, Gardners saltbush, and spiny horsebrush. 6500 6600 ft. 41.8785° N, 107.0705° W T22N R86W S14 S1/4; also N1/4 S23 41.8785 -107.0705 Flowering N N 2 RM 11813 Taylor, Amy 1997 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-647 Ronald L. Hartman 57447 Amy J. Roderick and Cherie Winner 11 6 1997 U.S.A. Wyoming Natrona [location and coordinates withheld] Shale hills and sandy areas and badlands. 5480 5500 ft. Flowering and Fruiting N N 3 RM 129709 Evert 2003 RM 913229 RM0066268 Asteraceae Tetradymia spinosa Hook. & Arn. RM-15027 Erwin F. Evert 39942 4 6 2003 U.S.A. Wyoming Big Horn Bighorn Basin: along east side of Lane 42, 3.5 mi S of Burlington. Saltbush-greasewood community with Atriplex gardneri, Musineon divaricatum, Xylorhiza glabriuscula, and Cymopterus acaulis. 4330 ft. T51N R96W S17 SW1/4 Flowering and Fruiting N RM0066268 N 4 RM 130586 Evert 2004 RM 913437 RM0066505 Asteraceae Tetradymia spinosa Hook. & Arn. RM-15082 Erwin F. Evert 40818 11 6 2004 U.S.A. Wyoming Big Horn Bighorn Basin: along Dry Creek 0-1/3 mi E of Wyo Hwy 32, 0.5 mi N of U.S. Hwy 14. Sagebrush-saltbush steppe on bluff above creek with Artemisia tridentata var. wyomingensis, Atriplex gardneri, and Bouteloua gracilis. 4290 ft. T52N R96W S5 NW1/4 N RM0066505 N 5 RM 130925 Evert 2005 RM 912748 RM0068744 Asteraceae Tetradymia spinosa Hook. & Arn. RM-15127 Erwin F. Evert 41156 5 6 2005 U.S.A. Wyoming Big Horn Bighorn Basin: ca 1/3 mi W of Wyo Hwy 32 and 1/4 mi W of Coon Creek. Saltbush-sagebrush-grassland with Atriplex gardneri, Artemisia tridentata var. wyomingensis, Poa secunda, and Musineon divaricatum abundant. 4460 ft. T54N R97W S34; also S35 Flowering and Fruiting N RM0068744 N 6 RM 138618 Evert 1990 RM 621026 RM0315658 Asteraceae Tetradymia spinosa Hook. & Arn. RM-15748 Erwin F. Evert 18783 10 6 1990 U.S.A. Wyoming Park Bighorn Basin: ca 1/2-3/4 mi SW of Wyo Hwy 294, ca 12 mi NW of Powell. Badland bluffs in sagebrush-saltbrush-grassland. 4600 ft. 44.7889° N, 108.9665° W T56N R101W S36 44.7889 -108.9665 Flowering and Fruiting N RM0315658 N 7 RM 148255 Evert 1995 RM 784104 RM0315633 Asteraceae Tetradymia spinosa Hook. & Arn. RM-16250 Erwin F. Evert 28635 6 6 1995 U.S.A. Wyoming Hot Springs Bighorn Basin: ca 0.5 mi NE of Grass Creek, just N of Cottonwood Creek Road, ca 22 mi NW of Thermopolis. Shrub steppe with Atriplex confertifolia, Atriplex gardneri, Lappula redowskii, and Xylorhiza glabriuscula. 5000 ft. 43.8655° N, 108.3814° W T45N R96W S16 43.8655 -108.3814 Fruiting N RM0315633 N 8 RM 183406 Welp 1994 Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Laura Welp. RM-17432 B. E. Nelson 30956 Laura Welp 3 6 1994 U.S.A. Wyoming Carbon Great Divide Basin Area: Great Divide Basin: along Buzzard Road, ca 2 air mi NE of Rendle Point above Separation Flats, ca 16 air mi NNW of Rawlins. Rolling plains of sand, clay, and barren clay knolls with several species of Artemisia, Atriplex, and mats of Opuntia. 6530 6750 ft. 42.0081° N, 107.32° W T24N R88W S34 42.0081 -107.32 Flowering and Fruiting N N 9 RM 188278 Welp 1995 Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Laura Welp. RM-17656 B. E. Nelson 34962 15 6 1995 U.S.A. Wyoming Carbon [location and coordinates withheld] Anticlinal ridge with bands of sandstones, shales, mudstones, and clay, sandy clay, or sandy soils. 6520 7086 ft. Flowering and Fruiting N N 10 RM 188646 Welp 1995 Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Laura Welp. RM-17665 B. E. Nelson 36241 5 7 1995 U.S.A. Wyoming Sweetwater Great Divide Basin Area: Great Divide Basin: along Dugout Draw at the west edge of Red Desert Basin, ca 27 air mi WNW of Wamsutter, ca 44 air mi ENE of Rock Springs. Salt desert shrub with sparsely vegetated areas and knolls. 6600 6630 ft. 41.8372° N, 108.4511° W T22N R98W S36 E1/2 41.8372 -108.4511 Flowering and Fruiting N N 11 RM 234863 Taylor, Kevin 1997 Asteraceae Tetradymia spinosa Hook. & Arn. RM-20755 Kevin J. Taylor 540 26 5 1997 U.S.A. Colorado Delta Northern Gunnison Basin: ca 3 air mi NNE of Crawford. Juniper and aspen shrubland (Atriplex). 6000 6500 ft. 38.7489° N, 107.5825° W T15S R91W S17 38.7489 -107.5825 Flowering N N 12 RM 235532 Taylor, Kevin 1997 Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Kevin J. Taylor. RM-20784 Ronald L. Hartman 56399 Kevin J. Taylor 17 5 1997 U.S.A. Colorado Delta Northern Gunnison Basin: ca 4.5-7 air mi E to ESE Hotchkiss. Rolling hills with sagebrush and saltflats, ridges with some pinyon-juniper. 5600 6880 ft. 38.7929° N, 107.6198° W T14S R92W S36; also T14S R91W S31, W1/2 S32 38.7929 -107.6198 Flowering N N 13 RM 235833 Taylor, Kevin 1997 Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Kevin J. Taylor. RM-20791 Ronald L. Hartman 56697 Kevin J. Taylor 20 5 1997 U.S.A. Colorado Delta Northern Gunnison Basin: ca 3 air mi S of Hotchkiss. Breaks in plains. 5700 5800 ft. 38.7636° N, 107.7129° W T15S R92W S7 38.7636 -107.7129 Flowering N N 14 RM 237260 Taylor, Kevin 1998 773410 Asteraceae Tetradymia spinosa Hook. & Arn. RM-20848 Kevin J. Taylor 4828 14 5 1998 U.S.A. Colorado Delta Northern Gunnison Basin: ca 2 air mi NW of Crawford. Sagebrush and saltbush hills. 6000 6100 ft. 38.7342° N, 107.6198° W T15S R92W S24 W1/2 38.7342 -107.6198 Flowering and Fruiting N N 15 RM 237282 Taylor, Kevin 1998 773409 Asteraceae Tetradymia spinosa Hook. & Arn. RM-20849 Kevin J. Taylor 4850 15 5 1998 U.S.A. Colorado Delta Northern Gunnison Basin: ca 2.5 air mi NNE of Crawford. Sagebrush and saltbush meadow; Juniperus. 6100 ft. 38.7489° N, 107.6011° W T15S R91W S18 E1/2 38.7489 -107.6011 Buds N N 16 RM 237565 Taylor, Kevin 1998 773357 Asteraceae Tetradymia spinosa Hook. & Arn. RM-20872 Kevin J. Taylor 5132 19 5 1998 U.S.A. Colorado Delta Northern Gunnison Basin: ca 5 air mi SSW of Paonia. Sagebrush and saltbush meadow. 5600 ft. 38.7929° N, 107.508° W T14S R91W S36 N1/2 38.7929 -107.508 Flowering and Fruiting N N 17 RM 272666 Lum 2001 RM 802102 RM0096173 Asteraceae Tetradymia spinosa Hook. & Arn. RM-22444 B. E. Nelson 52194 Luanne Lum 5 6 2001 U.S.A. Wyoming Washakie Bighorn Basin: along Platte Pipeline or BLM Road 1430, ca 3/4-1 air mi S of Red Hill, ca 13.5 air mi W of Worland. Badland slopes. 4520 4650 ft. 44.0428° N, 108.1993° W; uncertainty 1 mi. T47N R95W S13 SW1/4; also SE1/4 S14 44.0428 -108.1993 1 mi. Flowering N RM0096173 N 18 RM 272786 Lum 2001 RM 802100 RM0096235 Asteraceae Tetradymia spinosa Hook. & Arn. RM-22446 B. E. Nelson 52309 Luanne Lum 5 6 2001 U.S.A. Wyoming Big Horn Bighorn Basin: ca 0.4-0.6 mi S of Elk Creek on Dorsey Creek or BLM Road 1103, ca 9.5 air mi SSW of Otto; ca 16 air mi SW of Basin. Sagebrush-spiny horsebrush outwash areas at base of badlands. 4380 4420 ft. 44.2628° N, 108.3191° W; uncertainty 0.5 mi. T50N R95W S31 NW1/4 of NW1/4; also SW1/4 of SW1/4 S30 44.2628 -108.3191 1 mi. Flowering N RM0096235 N 19 RM 272815 Lum 2001 RM 802101 RM0096172 Asteraceae Tetradymia spinosa Hook. & Arn. RM-22447 B. E. Nelson 52338 Luanne Lum 5 6 2001 U.S.A. Wyoming Big Horn Bighorn Basin: near the head of South Fork Dorsey Creek on Dorsey Creek or BLM Road 1103, ca 4 air SE of Sheep Mountain, ca 8 air mi SSW of Otto; ca 17 air mi WSW of Basin. Flats below the badlands with scattered shrubs and sandstone outcrop. 4520 4580 ft. 44.3062° N, 108.3594° W; uncertainty 0.5 mi. T50N R96W S14 NW1/4 44.3062 -108.3594 1 mi. Flowering N RM0096172 N 20 RM 276369 Lum 2002 RM 933893 RM0098439 Asteraceae Tetradymia spinosa Hook. & Arn. RM-22591 Luanne Lum 2473 10 6 2002 U.S.A. Wyoming Big Horn Bighorn Basin: along Dorsey Creek or BLM Road 1103, ca 7 air mi ESE of Otto and ca 11.5 air mi ESE of Greybull. Sagebrush on sandy soil. 4440 4500 ft. 44.3786° N, 108.3997° W; uncertainty 1 mi. T51N R96W S21 SW1/4; also NW1/4 S28 44.3786 -108.3997 1 mi. Flowering and Fruiting N RM0098439 N 21 RM 281888 Lyon 1994 Asteraceae Tetradymia spinosa Hook. & Arn. RM-22773 Margarette J. Lyon 2698 6 5 1994 U.S.A. Utah Grand San Miguel and Lower Dolores River Drainages: Dolores River Drainage: Dewey: confluence of Dolores and Colorado Rivers. Slopes along river; red sandy soils with Atriplex and cheat grass. 4100 ft. 38.8193° N, 109.2871° W T23S R24E S8; also S9 38.8193 -109.2871 Flowering and Fruiting N N 22 RM 301055 Arnett 1998 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-23972 Melanie Arnett 31 7 6 1998 U.S.A. Colorado Montrose Uncompahgre Basin: ca 1/4 air mi S of Dry Cedar Creek and southern-most portion of Kinikin Heights Road. Adobe hills. 6225 6300 ft. 38.4017° N, 107.7892° W T48N R8W S19 N1/2 38.4017 -107.7892 Flowering and Fruiting N N 23 RM 316627 Moore 1995 Asteraceae Tetradymia spinosa Hook. & Arn. RM-24904 Ronald L. Hartman 50723 27 5 1995 U.S.A. Colorado Montezuma Upper Dolores River Drainage and Adjacent Areas: ca 24 air mi W of center of Cortez. Pinyon-juniper and grassland following state line, sandstone caprock with shale below. 5200 5300 ft. 37.3055° N, 109.036° W T35N R20W S10 W1/2; also NW1/4 S15 37.3055 -109.036 Flowering and Fruiting N N 24 RM 318197 Newton 2005 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Rachel Newton. RM-24965 B. E. Nelson 64932 Rob Massatti and Rachel Newton 8 6 2005 U.S.A. Wyoming Fremont Wetlands and Adjacent Areas: Fivemile Creek Bay of Boysen Reservoir and along Fivemile Creek, ca 4.5 air mi W of Shoshoni; ca 17.5 air mi NE of Riverton. Rocky, sandy slopes. 4720 4760 ft. 43.2388° N, 108.1922° W; GPS Reading T3N R6E S17 N1/2 43.2388 -108.1922 NAD 83 GPS Reading Flowering N N 25 RM 318329 Newton 2005 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Rachel Newton. RM-24968 B. E. Nelson 65190 13 6 2005 U.S.A. Wyoming Fremont Wetlands and Adjacent Areas: Antelope Flats Wetland, between Muddy and Fivemile creeks, ca 15.5-16 air mi N of Riverton. Sagebrush flats adjacent to the reservoir. 5200 ft. 43.2524° N, 108.4493° W; GPS Reading T3N R4E S7 43.2524 -108.4493 NAD 83 GPS Reading Flowering N N 26 RM 318385 Newton 2005 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Rachel Newton. RM-24970 B. E. Nelson 65246 13 6 2005 U.S.A. Wyoming Fremont Wetlands and Adjacent Areas: along Muddy Creek ca 3 air mi WSW of Lake Cameahwait (Bass Lake), ca 10.5 air mi WNW of Shoshoni; ca 18 air mi N of Riverton. Greasewood/saltbush flats. 4820 ft. 43.2825° N, 108.307° W; GPS Reading T4N R5E S32 NE1/4 43.2825 -108.307 NAD 83 GPS Reading Flowering N N 27 RM 338721 Porter RM 222801 RM0315636 Asteraceae Tetradymia spinosa Hook. & Arn. RM-31160 C. L. Porter 5716 R. C. Rollins 29 6 1951 U.S.A. Wyoming Sweetwater Ca 22 mi S of Green River. Dry sandy areas in the desert. 6500 ft. 41.2912° N, 109.6914° W; NAD 83, uncertainty 3 mi., Digital Map T15N R108W S19 41.2912 -109.6914 NAD 83 3 mi. Digital Map Located ca 22 miles south of Green River down WY Hwy 530 and the highway towards McKinnon; ca 2.75 miles SW of the McKinnon Junction; just SW of a pumping station and a communication tower; geo-locate.org. EL Flowering and Fruiting N RM0315636 N 28 RM 358301 RMHERB1 RM 10590 RM0315625 Asteraceae Tetradymia spinosa Hook. & Arn. RM-34774 Aven Nelson 3024 30 5 1897 U.S.A. Wyoming Sweetwater Green River. 6100 6500 ft. 41.5242° N, 109.4722° W; uncertainty 3 mi. T18N R107W S22 41.5242 -109.4722 3 mi. Y Y Buds N RM0315625 N 29 RM 358332 RMHERB1 RM 10591 RM0315624 Asteraceae Tetradymia spinosa Hook. & Arn. RM-34793 Aven Nelson 3108 2 6 1897 U.S.A. Wyoming Sweetwater Bitter Creek. 6700 ft. 41.5535° N, 108.5526° W; uncertainty 2 mi. T18N R99W S10 41.5535 -108.5526 2 mi. Y Y Buds N RM0315624 N 30 RM 358995 RMHERB1 RM 12724 RM0315623 Asteraceae Tetradymia spinosa Hook. & Arn. RM-35149 Aven Nelson 4825 18 6 1898 U.S.A. Wyoming Carbon Fort Steele. 6500 6600 ft. 41.7766° N, 106.9541° W; uncertainty 3 mi. T21N R85W S23 41.7766 -106.9541 3 mi. Y Y Flowering and Fruiting N RM0315623 N 31 RM 362787 RMHERB1 RM 150356 RM0315626 Asteraceae Tetradymia spinosa Hook. & Arn. RM-37588 C. L. Shear 4398 25 6 1895 U.S.A. Wyoming Sweetwater Green River. River bottom. 6100 ft. 41.5242° N, 109.4722° W; uncertainty 2 mi. T18N R107W S22 41.5242 -109.4722 2 mi. Y Y Fruiting N RM0315626 N 32 RM 364728 RMHERB1 RM 264573 RM0315649 Asteraceae Tetradymia spinosa Hook. & Arn. RM-39023 Dixie R. Smith s.n. 26 6 1961 U.S.A. Wyoming Big Horn University of Wyoming Experimental Pastures; ca 18 mi NW of Greybull. Saltsage community. 4600 ft. 44.6743° N, 108.3215° W; uncertainty 2 mi. T54N R95W S8 44.6743 -108.3215 2 mi. Flowering and Fruiting N RM0315649 N 33 RM 364826 RMHERB1 USFS 401995 USFS0072231 Asteraceae Tetradymia spinosa Hook. & Arn. RM-39100 Doris W. Hayes s.n. J. W. Roller 20 11 1952 U.S.A. Wyoming Lincoln Between Opal and Diamondville; ca 2 mi E of Diamondville on U.S. Hwy 30. 6900 ft. 41.7531° N, 110.52861° W; uncertainty 1 mi. T21N R116W S36 41.7531 -110.52861 1 mi. Vegetative N USFS0072231 N 34 RM 366675 RMHERB1 RM 32332 RM0315627 Asteraceae Tetradymia spinosa Hook. & Arn. RM-40338 Elmer D. Merrill 652 E. N. Wilcox 18 6 1901 U.S.A. Wyoming Sweetwater Point of Rocks. Dry soil. 6500 6600 ft. 41.6869° N, 108.7824° W; uncertainty 3 mi. T20N R101W S27 41.6869 -108.7824 3 mi. Flowering N RM0315627 N 35 RM 378921 RMHERB1 RM 274177 RM0315650 Asteraceae Tetradymia spinosa Hook. & Arn. RM-45203 James T. Nichols 415 8 6 1962 U.S.A. Wyoming Washakie W of Worland, on the lower part of the Fifteenmile drainage area. Willwood formation. Lowland area in association with greasewood on Willwood Formation in 5-9 inch precipitation zone. 4100 4300 ft. T47N R93W S3 5 mi. Flowering N RM0315650 N 36 RM 382831 RMHERB1 RM 318962 RM0315648 Asteraceae Tetradymia spinosa Hook. & Arn. RM-47436 Linda M. Barker 1794 31 5 1978 U.S.A. Wyoming Washakie Bighorn Basin: Schuster Flats NE Quad. Saline upland range site. 4400 ft. T48N R94W S19 SE1/4 NE1/4 N N Native shrub. TESP2. Buds N RM0315648 N 37 RM 383761 RMHERB1 RM 206565 RM0315628 Asteraceae Tetradymia spinosa Hook. & Arn. RM-48003 Lowell E. Larsen 9 1 6 1947 U.S.A. Wyoming Sweetwater Rock Springs. Lower ground. 6200 ft. 41.5831° N, 109.224° W; uncertainty 5 mi. T19N R105W S35 41.5831 -109.224 5 mi. Fairly common, height up to 4 ft. Vegetative N RM0315628 N 38 RM 391104 RMHERB1 RM 600947 RM0315655 Asteraceae Tetradymia spinosa Hook. & Arn. RM-53168 Robert D. Dorn 5929 6 6 1995 U.S.A. Wyoming Hot Springs 11.5 mi NW of Kirby. Rocky clay slope with Opuntia and Platyschkuhria. 4800 ft. 43.8655° N, 108.3814° W; uncertainty 0.5 mi. T45N R96W S16 NW1/4 43.8655 -108.3814 1 mi. Flowers yellow. Flowering and Fruiting N RM0315655 N 39 RM 395145 RMHERB1 RM 745425 RM0315621 Asteraceae Tetradymia spinosa Hook. & Arn. RM-56137 Sherel Goodrich 25009 22 6 1995 U.S.A. Wyoming Sweetwater Ashley National Forest: Flaming Gorge National Recreation Area: ca 1 mi N of Utah. Eroding hills. 6160 ft. T12N R107W S18 SW1/4 Flowering and Fruiting N RM0315621 N 40 RM 396474 RMHERB1 RM 568543 RM0315622 Asteraceae Tetradymia spinosa Hook. & Arn. RM-56929 Thomas W. Nelson 8264 Jane P. Nelson 26 6 1986 U.S.A. Wyoming Sweetwater North side of I-80 at Baxter Road (Exit #111). Grassland. 6200 ft. 41.6127° N, 109.128° W; uncertainty 1 mi. T19N R104W S22 41.6127 -109.128 1 mi. Flowering and Fruiting N RM0315622 N 41 RM 398697 WYNDD RM 603002 RM0315634 Asteraceae Tetradymia spinosa Hook. & Arn. RM-58389 Walter Fertig 14864 14 6 1994 U.S.A. Wyoming Sweetwater Great Divide Basin: S of Bitter Creek on County Road 19 on east side of Antelope Creek. Dry reddish-brown clay flats and lower slopes of sandstone-shale-clay badlands ridges; Atriplex gardneri-Artemisia pedatifida-A. spinescens community. 7000 7200 ft. 41.4051° N, 108.5136° W; uncertainty 1 mi. T17N R99W S36 41.4051 -108.5136 1 mi. Flowering and Fruiting N RM0315634 N 42 RM 400999 WYNDD RM 645424 RM0315635 Asteraceae Tetradymia spinosa Hook. & Arn. RM-59634 Walter Fertig 18200 14 6 1998 U.S.A. Wyoming swet Green River Basin: ridge at the junction of Sugarloaf Marsh Creek and a small tributary draw to the northeast (draining the Sugarloaf Basin), ca 5.3 mi E of Squaw Hollow and 3.5 mi E of Flaming Gorge Reservoir. South-facing slope of brownish sandy-clay soil with scattered brown sandstone-slate flakes; community of Atriplex confertifolia-Artemisia tridentata with Oryzopsis hymenoides, Elymus elymoides, Artemisia frigida, and Chrysothamnus nauseosus. 6460 6500 ft. 41.165° N, 109.4553° W; uncertainty 0.25 mi. T14N R107W S27 N1/2 of SE1/4 of NW1/4 41.165 -109.4553 0 mi. Flowering and Fruiting N RM0315635 N 43 RM 478079 So Rocky Mts RM 526862 Asteraceae Tetradymia spinosa Hook. & Arn. RM-88059 Betsy E. Neely 4157 30 5 1987 U.S.A. Colorado Moffat Dinosaur National Monument: East Fork Sand Canyon, W of the Billiard Table. Sandy soils of gentle N exposure in wash with Sarcobatus, Artemisia tridentata, Clematis and Senecio. 5500 ft. T6N R103W S9 SW1/4 of NE1/4 Flowering N N 44 RM 479039 So Rocky Mts RM 47500 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-77889 C. S. Crandall 3182 15 5 1898 U.S.A. Colorado Mesa Palisades. Flowering N N 45 RM 479136 So Rocky Mts RM 13240 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-70628 C. S. Crandall s.n. 14 5 1898 U.S.A. Colorado Mesa Palisades. 4750 ft. N Flowering and Fruiting N N 46 RM 479659 So Rocky Mts RM 13516 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969.
1.
Annotated by Edward L. Greene in 1969. RM-88655 Carl F. Baker 419 F. S. Earle and S. M. Tracy 8 7 1898 U.S.A. Colorado Montezuma Mancos. Sage plains. 7000 ft. Flowering N N 47 RM 479660 So Rocky Mts RM 155213 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969.
1.
Annotated by Edward L. Greene in 1969. RM-88655 Carl F. Baker 419 F. S. Earle and S. M. Tracy 8 7 1898 U.S.A. Colorado Montezuma Mancos. Sage plains. 7000 ft. Flowering N N 48 RM 483392 So Rocky Mts RM 81868 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-90321 Edwin B. Payson 655 13 6 1915 U.S.A. Colorado Montrose Near Montrose. Dry alkaline hill. 5800 ft. Flowering and Fruiting N N 49 RM 484721 So Rocky Mts USFS 484527 Asteraceae Tetradymia spinosa Hook. & Arn. RM-91064 Felix E. Read R-399 13 7 1937 U.S.A. Colorado Delta Gunnison National Forest: Smith Fork Creek. 10% south slope, clay loam, with sage, rabbitbrush and others: dry open hillside. 6500 ft. Flowering and Fruiting N N 50 RM 486938 So Rocky Mts RM 12199 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-80940 George E. Osterhout 2144 25 6 1900 U.S.A. Colorado Garfield Rifle. Flowering and Fruiting N N 51 RM 487256 So Rocky Mts RM 155211 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-80981 George E. Osterhout 2627 10 6 1902 U.S.A. Colorado Moffat N of Craig. Flowering and Fruiting N N 52 RM 487257 So Rocky Mts RM 38853 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-80981 George E. Osterhout 2627 10 6 1902 U.S.A. Colorado Moffat N of Craig. Flowering N N 53 RM 488320 So Rocky Mts RM 155212 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-81122 George E. Osterhout 4294 27 5 1910 U.S.A. Colorado Mesa De Beque. 4948 ft. 39.3341° N, 108.2148° W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO! 39.3341 -108.2148 NAD 83 0 mi. Nat. Geog. TOPO! Flowering and Fruiting N N 54 RM 494078 So Rocky Mts USFS 484512 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by S. F. Blake. RM-93721 L. W. Larson L-25 27 7 1936 U.S.A. Colorado Rio Blanco 10 mi NW of Rangely. Shadscale. N N 55 RM 494109 So Rocky Mts USFS 484525 Asteraceae Tetradymia spinosa Hook. & Arn. RM-93743 Larson 12L 18 7 1936 U.S.A. Colorado Moffat 1 mi S of Lily Park. Shadscale type. N N 56 RM 497575 So Rocky Mts USFS 484526 Asteraceae Tetradymia spinosa Hook. & Arn. RM-95472 Ralph K. Gierisch 1687 H. E. Schwann 27 8 1952 U.S.A. Colorado Rio Blanco 12 mi W of Meeker. 10% west slope, clay loam, woodland-saltbush type. 6000 ft. Flowering and Fruiting N N 57 RM 500156 So Rocky Mts RM 368681 Asteraceae Tetradymia spinosa Hook. & Arn. RM-96834 Stanley L. Welsh 23412 B. T. Welsh and R. Kass 12 5 1985 U.S.A. Colorado Mesa Ca 5 mi SE of Clifton. Mancos Shale, saltbush-galleta community. 4760 ft. 39.0415° N, 108.4133° W; uncertainty 1 mi. T1S R2E S30 39.0415 -108.4133 1 mi. Flowering N N 58 RM 501462 So Rocky Mts USFS 484524 Asteraceae Tetradymia spinosa Hook. & Arn. RM-75958 V. H. Reid s.n. Glen L. Ranck 7 6 1972 U.S.A. Colorado Mesa Badger Wash Experimental Area. Salt desert shrub. 5000 ft. N Fruiting N N 59 RM 503147 So Rocky Mts RM 211573 Asteraceae Tetradymia spinosa Hook. & Arn. Tetradymia spinosa Hook. & Arn.
Annotated by John L. Strother in 1969. RM-98235 William A. Weber 3768 21 5 1948 U.S.A. Colorado Mesa Colorado National Monument: 3 mi S of Fruita, W of highway approach to Monument. Low rocky hogbacks beneath northwest escarpment. 1530 ft. Flowering and Fruiting N N 60 RM 503243 So Rocky Mts RM 229275 Asteraceae Tetradymia spinosa Hook. & Arn. RM-86628 William A. Weber 7474 30 5 1952 U.S.A. Colorado Montrose Hills N of highway, 7 mi E of Montrose. Gypsum hills. 6000 ft. N Flowering and Fruiting N N 61 RM 535550 Ward 1996 RM 789968 RM0315613 Asteraceae Tetradymia spinosa Hook. & Arn. RM-102821 Beth Ward 1604 27 6 1996 U.S.A. Wyoming Sweetwater South-central Wyoming: Washakie Basin: between Cherokee Basin and Cherokee Rim, ca 14.5 air mi W of Baggs. Sandy slope. 6350 6520 ft. T12N R94W S11 Flowering N RM0315613 N 62 RM 535663 Ward 1996 RM 789969 RM0315612 Asteraceae Tetradymia spinosa Hook. & Arn. RM-102826 Beth Ward 1706 28 6 1996 U.S.A. Wyoming Sweetwater South-central Wyoming: Washakie Basin: Grindstone Wash drainage and base of Prehistoric Rim along its northeastern face, ca 25 air mi WNW of Baggs. Clay/sandy soil. 6410 6490 ft. T14N R95W S32 N1/2; also NE1/4 S31 Flowering N RM0315612 N 63 RM 535714 Ward 1996 RM 789970 RM0315611 Asteraceae Tetradymia spinosa Hook. & Arn. RM-10 Beth Ward 1750 28 6 1996 U.S.A. Wyoming Sweetwater South-central Wyoming: Washakie Basin: southeast side of butte overlooking Sand Creek, ca 2 air mi W of McPherson Springs; ca 17.5 air mi WNW of Baggs. Sandy/gumbo slopes. 6520 6828 ft. T13N R94W S21 SW1/4; also SE1/4 S20 Flowering N RM0315611 N 64 RM 535802 Ward 1996 RM 789971 RM0315610 Asteraceae Tetradymia spinosa Hook. & Arn. RM-102833 Beth Ward 1829 4 7 1996 U.S.A. Wyoming Sweetwater South-central Wyoming: Green River Basin: northeastern slope of Flattop Mountain, ca 2.5 air mi W of Wyo Hwy 191; ca 15 air mi SSW of Rock Springs. Sagebrush flat. 6530 6740 ft. T16N R106W S10 N1/2 Flowering N RM0315610 N 65 RM 535828 Ward 1996 RM 789972 RM0315630 Asteraceae Tetradymia spinosa Hook. & Arn. RM-102835 Beth Ward 1851 4 7 1996 U.S.A. Wyoming Sweetwater South-central Wyoming: Green River Basin: Slippery Jim Bottom on Flaming Gorge Reservoir, ca 1 air mi N of Little Firehole Canyon; ca 14 air mi SSW of Rock Springs. Hillside above bottom. 6040 6140 ft. 41.42° N, 109.4166° W T17N R106W S30 N1/2; also South1/2 S19 41.42 -109.4166 Flowering N RM0315630 N 66 RM 535879 Ward 1996 RM 789973 RM0315631 Asteraceae Tetradymia spinosa Hook. & Arn. RM-102837 Beth Ward 1899 4 7 1996 U.S.A. Wyoming Sweetwater South-central Wyoming: Green River Basin: adjacent to and mainly S of the confluence of Middle Marsh Creek and Flaming Gorge Reservoir, ca 36 air mi SSW of Rock Springs. Hillside above creek and reservoir. 6010 6130 ft. T13N R107W S19 N1/2 Flowering N RM0315631 N 67 RM 536248 Ward 1996 RM 789974 RM0315632 Asteraceae Tetradymia spinosa Hook. & Arn. RM-102857 Beth Ward 2224 10 7 1996 U.S.A. Wyoming Sweetwater [location and coordinates withheld] Hillsides adjacent to creek. 6470 6550 ft. Vegetative N RM0315632 N 68 RM 538667 Ward 1996 RM 789967 RM0315614 Asteraceae Tetradymia spinosa Hook. & Arn. RM-102979 Beth Ward 697 16 6 1996 U.S.A. Wyoming Carbon South-central Wyoming: Washakie Basin: Tree Draw leading from Hangout Ridge W to Hangout Wash, ca 2-2.5 air mi from the confluence of Hangout Wash and Sand Creek; ca 12 air mi WNW of Baggs. Wash terrace. 6260 6620 ft. T13N R93W S16 W1/2; also N1/2 S17 and SE1/4 S18 Flowering N RM0315614 N 69 RM 539113 Ward 1997 RM 798360 RM0091203 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103002 Beth Ward 4066 26 5 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming:: Rock Springs Uplift: Hills and draws sloping down to the W towards Killpecker Creek; ca 1 air mi E of Killer Creek; ca 3.0 air mi N of Rock Springs. Sandy hills with rock and clay outcrops; greasewood and spiny hopsafe. 6380 6440 ft. 41.6277° N, 109.2246° W T19N R105W S14; S14 E1/2 41.6277 -109.2246 Buds N RM0091203 N 70 RM 539409 Ward 1997 RM 798359 RM0091202 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103013 Beth Ward 4349 30 5 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: Green River Basin: greasewood flats and cottonwoods adjacent to Big Island Wash and Green River, ca 26 air mi WNW of Rock Springs. Greasewood flats. 6200 6220 ft. 41.7482° N, 109.7182° W T21N R109W S36 W1/2 41.7482 -109.7182 Flowering N RM0091202 N 71 RM 539770 Ward 1997 RM 798358 RM0091201 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103024 Beth Ward 4702 7 6 1997 U.S.A. Wyoming Sweetwater [location and coordinates withheld] Sagebrush flat. 6730 6910 ft. Buds N RM0091201 N 72 RM 540010 Ward 1997 RM 798357 RM0091241 Asteraceae Tetradymia spinosa Hook. & Arn. RM-88 Beth Ward 4940 9 6 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: low buttes and flats, ca 1 air mi N of Canyon Creek; ca 0.5 air mi W of Wyo Hwy 430; ca 42 air mi SSE of Rock Springs. Sagebrush slope. 7180 7330 ft. 41.0351° N, 108.8052° W T12N R101W S8 41.0351 -108.8052 Flowering and Fruiting N RM0091241 N 73 RM 540346 Ward 1997 RM 798356 RM0091240 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103040 Beth Ward 5270 14 6 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: Green River Basin: slopes and draws draining from the west directly into Flaming Gorge Reservoir, ca 2 air mi SW of South Chimney Rock; ca 20.5 air mi SSW of Rock Springs. South-facing slate, clay slope. 6080 6180 ft. 41.3381° N, 109.4553° W T16N R107W S27 SE1/4 41.3381 -109.4553 Flowering N RM0091240 N 74 RM 540423 Ward 1997 RM 798355 RM0091239 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103041 Beth Ward 5346 14 6 1997 U.S.A. Wyoming Sweetwater [location and coordinates withheld] Clay, shale slope. 6770 7085 ft. Flowering N RM0091239 N 75 RM 540697 Ward 1997 RM 798354 RM0091238 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103051 Beth Ward 5617 17 6 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: slopes and draws ca 1 air mi S of Powder Rim draining to West Fork Cherokee Creek, ca 9 air mi E of Powder Mountain; ca 20 air mi W of Baggs. Clay/sand flat, no sagebrush. 6620 6840 ft. 41.0405° N, 108.0589° W T12N R95W S2 N1/4; also T13N R95W SE1/4 S35 and SW1/4 S36 41.0405 -108.0589 Flowering N RM0091238 N 76 RM 541212 Ward 1997 RM 798353 RM0091237 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103069 Beth Ward 6127 24 6 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: Green River Basin: flats and badlands slopes and draws draining to Starvation Wash, ca 3 air mi NE of Blue Rim; ca 12 air mi E of the Green River; ca 16 air mi SSW of Farson. Sandy/clay flat. 6530 6705 ft. 41.8822° N, 109.5637° W T22N R107W S17; also W1/4 S16 41.8822 -109.5637 Flowering N RM0091237 N 77 RM 541255 Ward 1997 RM 798352 RM0091236 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103072 Beth Ward 6170 24 6 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: Green River Basin: east-facing draws and slopes and butte top of part the Blue Rim, ca 6 air mi NE of the Green River; ca 3 air mi NW of Alkali Creek; ca 19.5 air mi NW of Rock Springs. Rocky butte top. 6720 6860 ft. 41.7463° N, 109.5702° W T20N R108W S2 W1/2; also E1/2 S3 41.7463 -109.5702 Flowering N RM0091236 N 78 RM 541285 Ward 1997 798351 RM0091235 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103073 Beth Ward 6200 24 6 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: Green River Basin: draws and slopes draining to Alkali Creek, ca 5 air mi E of the Green River; ca 1 air mi W of Alkali Creek; ca 18 air mi WNW of Rock Springs. Sandy draw, sagebrush and Tetradymia. 6460 6670 ft. 41.687° N, 109.5702° W T20N R108W S26 N1/4; also S1/2 S23 and SW1/4 S24 41.687 -109.5702 Flowering N RM0091235 N 79 RM 541445 Ward 1997 RM 798350 RM0091234 Asteraceae Tetradymia spinosa Hook. & Arn. RM-103077 Beth Ward 6355 26 6 1997 U.S.A. Wyoming Sweetwater South-Central Wyoming: draws and slopes draining S to Red Creek, ca 0.5 air mi N of Red Creek; ca 5 air mi NW of Pine Mountain; ca 34.5 air mi SSE of Rock Springs. South-facing badlands slope. 7300 7650 ft. 41.0784° N, 109.0729° W T13N R104W S25 41.0784 -109.0729 Flowering and Fruiting N RM0091234 N 80 RM 569913 Bighorn Basin RM 930938 RM0093481 Asteraceae Tetradymia spinosa Hook. & Arn. RM-104478 B. E. Nelson 14125 30 6 1987 U.S.A. Wyoming Park Bighorn Basin: along West Branch Whistle Creek, ca 11 air mi SE of Powell. Sandy flats along creek. 4500 ft. 44.60056° N, 108.6833° W T53N R98W S5 44.60056 -108.6833 N RM0093481 N 81 RM 570703 Bighorn Basin RM 930937 RM0093480 Asteraceae Tetradymia spinosa Hook. & Arn. RM-104535 B. E. Nelson 14860 Erik Nelson 27 5 1988 U.S.A. Wyoming Washakie Bighorn Basin: along South Fork Fifteenmile Creek, ca 14 air mi WNW of Worland. Clay flats with Atriplex gardneri and Artemisia spinescens. 4400 44.0736° N, 108.2172° W T47N R95W S2 44.0736 -108.2172 N RM0093480 N 82 RM 570745 Bighorn Basin RM 930936 RM0093479 Asteraceae Tetradymia spinosa Hook. & Arn. RM-104537 B. E. Nelson 14899 Erik Nelson 27 5 1988 U.S.A. Wyoming Washakie Bighorn Basin: Middle Fork Fifteenmile Creek near end of Paradise Alley, ca 24.5 air mi WNW of Worland. Small sand dune with Grayia and Artemisia. 4800 ft. 44.0878° N, 108.4389° W T48N R97W S36 44.0878 -108.4389 N RM0093479 N 83 RM 570822 Bighorn Basin RM 930935 RM0093478 Asteraceae Tetradymia spinosa Hook. & Arn. RM-104540 B. E. Nelson 14969 Erik Nelson 29 5 1988 U.S.A. Wyoming Big Horn Bighorn Basin: along Elk Creek on Dorsey Creek Road, ca 16 air mi WSW of Basin, ca 9 air mi SSW of Otto. Sandy clay slopes in badlands. 4400 44.27639° N, 108.3219° W T50N R95W S30 44.27639 -108.3219 N RM0093478 N 84 RM 571195 Bighorn Basin RM 930934 RM0093477 Asteraceae Tetradymia spinosa Hook. & Arn. RM-104560 B. E. Nelson 15307 Erik Nelson 5 6 1988 U.S.A. Wyoming Big Horn Bighorn Basin: on Fenton Pass Road, ca 6 air mi N of Tatman Mountain, ca 8 air mi SW of Burlington, ca 26 air mi W of Basin. Reservoir dam and banks. 4850 ft. 44.3786° N, 108.56278° W T51N R97W S19 44.3786 -108.56278 N RM0093477 N 85 RM 579897 Bighorn Basin RM 930941 RM0093484 Asteraceae Tetradymia spinosa Hook. & Arn. RM-105304 B. E. Nelson 7619 7 6 1981 U.S.A. Wyoming Big Horn Bighorn Basin: S of Fivemile Creek, ca 12 air mi WSW of Manderson; ca 22 air mi SW of Basin. Sandstone breaks and slopes below badlands. 4600 ft. 44.2194° N, 108.1857° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO! T49N R94W S17 44.2194 -108.1857 NAD 83 1 mi. N N Nat. Geog. TOPO! BEN N RM0093484 N 86 RM 579990 Bighorn Basin RM 930940 RM0093483 Asteraceae Tetradymia spinosa Hook. & Arn. RM-105309 B. E. Nelson 7702 7 6 1981 U.S.A. Wyoming Big Horn Bighorn Basin: Fox Mountain, ca 9 air mi E of Greybull. Sandy clay soil on the sides of the butte. 4500 ft. 44.4939° N, 107.8695° W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO! T52N R92W S11 44.4939 -107.8695 NAD 83 1 mi. N N Nat. Geog. TOPO! BEN N RM0093483 N 87 RM 580047 Bighorn Basin RM 930939 RM0093482 Asteraceae Tetradymia spinosa Hook. & Arn. RM-105316 B. E. Nelson 7754 7 6 1981 U.S.A. Wyoming Big Horn Bighorn Basin: Potato Ridge, ca 14 air mi ESE of Greybull. Shaly sagebrush-saltsage slopes. 4900 ft. 44.4364° N, 107.79389° W; uncertainty 1 mi. T52N R91W S33 44.4364 -107.79389 1 mi. N RM0093482 N 88 RM 585134 Haines 1985 RM 387650 RM0315657 Asteraceae Tetradymia spinosa Hook. & Arn. RM-105801 June Haines 4127 11 6 1985 U.S.A. Wyoming Fremont Wind River Basin: west side of Ocean Lake; Longpoint Peninsula. Shaley sagebrush slopes and hilltops. 5234 5260 ft. 43.1785° N, 108.6264° W; uncertainty 2 mi. T2N R2E S3; also S4 43.1785 -108.6264 2 mi. Flowering and Fruiting N RM0315657 N 89 RM 601084 Bighorn Basin RM 930933 RM0093476 Asteraceae Tetradymia spinosa Hook. & Arn. RM-106756 Keith H. Dueholm 9629 Ronald L. Hartman 28 5 1980 U.S.A. Wyoming Big Horn Bighorn Basin: along U.S. Hwy 14, ca 0.5 mi E of Greybull. Sandstone outcrops, sandy plain along highway; plain. 4000 ft. 44.4975° N, 108.04333° W; uncertainty 1 mi. T52N R93W S9 44.4975 -108.04333 1 mi. N RM0093476 N 90 RM 614410 Haines 1985 RM 387651 RM0315656 Asteraceae Tetradymia spinosa Hook. & Arn. RM-107201 Ronald L. Hartman 19940 June Haines 28 5 1985 U.S.A. Wyoming Fremont Wind River Basin: Cottonwood Creek, 7 air mi NE of Lysite. Sandy ridge, sandstone outcrops, eroded slopes and creek bottoms. 5400 5600 ft. 43.3494° N, 107.6039° W; uncertainty 2 mi. T39N R90W S14; also S15 43.3494 -107.6039 2 mi. Buds N RM0315656 N 91 RM 645855 RMHERB1 RM 600947 Asteraceae Tetradymia spinosa Hook. & Arn. RM-108643 Robert D. Dorn 5929 6 6 1995 U.S.A. Wyoming Hot Springs 11.5 mi NW of Kirby. Rocky clay slope with Opuntia and Platyschkuhria. 4800 ft. 43.8655° N, 108.3814° W; uncertainty 0.5 mi. T45N R96W S16 NW1/4 43.8655 -108.3814 1 mi. Flowering and Fruiting N N 92 RM 656284 Cramer 1994 RM 632198 RM0315615 Asteraceae Tetradymia spinosa Hook. & Arn. RM-109634 Thomas Cramer 557 14 6 1994 U.S.A. Wyoming Lincoln Green River Basin: east side of Upper Fontenelle Reservoir, ca 9 air mi S of La Barge. Sagebrush flats and open reservoir edge. 6500 ft. 42.1336° N, 110.1578° W T25N R112W S21 SW1/4 42.1336 -110.1578 Flowering N RM0315615 N 93 RM 657473 Cramer 1995 RM 638060 RM0315619 Asteraceae Tetradymia spinosa Hook. & Arn. RM-109723 Thomas Cramer 6669 Jane T. Kellett 21 6 1995 U.S.A. Wyoming Lincoln Green River Basin: Slate Creek Butte, ca 5 air mi SW of Fontenelle Dam. Clay badlands hillside. 6650 6750 ft. 41.9711° N, 110.0873° W; uncertainty 1 mi. T23N R112W S14 W1/2 41.9711 -110.0873 1 mi. Flowering N RM0315619 N 94 RM 658345 Cramer 1995 RM 638059 RM0315618 Asteraceae Tetradymia spinosa Hook. & Arn. RM-109764 Thomas Cramer 7432 7 7 1995 U.S.A. Wyoming Sublette Green River Basin: ca 11.5 air mi SW of Boulder. Steep eroded clay slope mesa sides. 7200 7300 ft. 42.6439° N, 109.881° W; uncertainty 0.5 mi. T31N R109W S19 SW1/4 42.6439 -109.881 1 mi. Flowering N RM0315618 N 95 RM 658474 Cramer 1995 RM 638058 RM0315617 Asteraceae Tetradymia spinosa Hook. & Arn. RM-109769 Thomas Cramer 7547 8 7 1995 U.S.A. Wyoming Sublette Green River Basin: ca 9.5 air mi E of La Barge. Cobblestone sagebrush mesa top. 7200 7280 ft. 42.2863° N, 110.0241° W T27N R111W S27 42.2863 -110.0241 Flowering N RM0315617 N 96 RM 659200 Cramer 1995 RM 638091 RM0315616 Asteraceae Tetradymia spinosa Hook. & Arn. RM-109800 Thomas Cramer 8322b Jane T. Kellett 18 7 1995 U.S.A. Wyoming Sweetwater Green River Basin: ca 5.5 air mi E of Fontenelle Dam. Sand dune sagebrush hills with Grayia and Tetradymia. 6530 ft. 42.031° N, 109.952° W T24N R111W S25 NE1/4 42.031 -109.952 Flowering and Fruiting N RM0315616 N 97 RM 710759 Elliott, Emily 2007 RM 938683 RM0109390 Asteraceae Tetradymia spinosa Hook. & Arn. RM-115500 B. E. Nelson 71063 Emily Elliott, Brian Elliott 22 5 2007 U.S.A. Montana Carbon Bighorn Basin: along Grove Creek Road, ca 2.5 air mi W of Clarks Fork Yellowstone River, ca 5 air mi SW of Belfry. Clay slopes and ridges with sandstone outcrop, with sagebrush and saltbush. 4140 4280 ft. 45.0793° N, 109.0835° W to 45.0848° N, 109.0832° W; NAD 83, , GPS Reading T9S R22E S6 NW1/4 45.0848 -109.0832 NAD 83 GPS Reading Flowering and Fruiting N RM0109390 98 RM 718643 WYNND RM 818041 RM0315620 Asteraceae Tetradymia spinosa Hook. & Arn. RM-116871 Walter Fertig 23221 3 6 2007 U.S.A. Wyoming Sweetwater Green River Basin: badlands ca 0.2 mi E of County Road 1 at mile post 9 and E of tributary wash of Buckboard Wash, ca 8 air mi W of Flaming Gorge Reservoir and 3 mi W of Black Mountain. Rocky terrace within wash bottom and on lowermost bank; vegetation cover 20%; community of scattered Artemisia tridentata var. wyomingensis, Chrysothamnus viscidiflorus, and Poa secunda. 6520 ft. 41.2181° N, 109.7625° W T14N R110W S1 SE1/4 SW1/4 41.2181 -109.7625 Scattered, spiny shrubs to 2 ft tall. Flowering and Fruiting N RM0315620 N 99 RM 7413 Taylor, Amy 1997 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-496 Amy J. Roderick 639 14 6 1997 U.S.A. Wyoming Carbon [location and coordinates withheld] Sagebrush draws and barren sandy grasslands with hills of gypsum. 6750 6800 ft. Flowering N N 100 RM 782363 Kirkpatrick, Michael 2010 USFS 898215 USFS0059603 Asteraceae Tetradymia spinosa Hook. & Arn. RM-127267 Michael K. Kirkpatrick 656 27 5 2010 U.S.A. Colorado Mesa Black Mountain, W of the De Beque Cutoff Road, ca 8-9 air mi SSE of De Beque. Juniper woodland with scattered sagebrush on eastern flanks of mountain below sandstone and shale outcrops. 5480 6600 ft. 39.2257° N, 108.1588° W to 39.2162° N, 108.1768° W; NAD 83, , GPS reading T9S R97W S36 SE1/4 SE1/4; also T10S R97W S1 and S2 39.2257 -108.1588 NAD 83 GPS reading Flowering N USFS0059603 101 RM 796195 Missouri Plateau USFS 484528 Asteraceae Tetradymia spinosa Hook. & Arn. RM-136185 Jack E. Schmautz 411 30 7 1963 U.S.A. Montana Carbon Custer National Forest: Gypsum Creek. Southeast 5% slope; on heavy gravelly clay; desert shrub with Artemesia spinescens, Atriplex, Chrysothamnus. 3000 ft. T9S R27E S28 Scattered; 2 ft tall. Vegetative N N 102 RM 828656 Kirkpatrick, Michael 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-143002 Michael K. Kirkpatrick 4805 17 5 2011 U.S.A. Colorado Mesa Colorado River Valley: unnamed side canyon E of De Beque Canyon, N of Kimbell Mesa, ca 21 air mi ENE of Grand Junction. Clay slopes and badlands. 5150 5200 ft. 39.27° N, 108.2396° W; NAD 83, , GPS reading T9S R97W S17 South1/2 39.27 -108.2396 NAD 83 GPS reading Flowering and Fruiting N 103 RM 828941 Kirkpatrick, Michael 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-143018 Michael K. Kirkpatrick 5090 24 5 2011 U.S.A. Colorado Mesa Unnamed mesa N of Plateau Creek, ca 6 air mi E of Colo Hwy 65 at I-70 and ca 5 air mi W of Molina. Clay slopes and badlands with greasewood and shadscale. 5320 5660 ft. 39.1926° N, 108.1667° W to 39.1928° N, 108.1637° W; NAD 83, , GPS reading T10S R97W S13 N1/2 39.1926 -108.1667 NAD 83 GPS reading Flowering and Fruiting N 104 RM 829148 Kirkpatrick, Michael 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-143043 Michael K. Kirkpatrick 5297 30 5 2011 U.S.A. Colorado Mesa Colorado River Valley: canyon SE of De Beque Reservoir, ca 1 air mi NNE of De Beque off of the W.50 Road. Ruderal meadow and roadside in bottom of canyon. 5050 5150 ft. 39.3407° N, 108.213° W; NAD 83, , GPS reading T8S R97W S22 W1/2 39.3407 -108.213 NAD 83 GPS reading Flowering and Fruiting N 105 RM 829318 Kirkpatrick, Michael 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-144146 Michael K. Kirkpatrick 5467 1 6 2011 U.S.A. Colorado Garfield Colorado River Valley: W of the mouth of Smith Gulch, N of I-70 along a frontage road, ca 5 air mi SW of Parachute. Shrink-swell clay slopes dominated by Atriplex, Sarcobatus, and Stanleya. 5300 5400 ft. 39.3986° N, 108.1373° W; NAD 83, , GPS reading T7S R96W S32 N1/2 39.3986 -108.1373 NAD 83 GPS reading Flowering and Fruiting N 106 RM 843616 Brummer 2012 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-150647 Lori E. Brummer 7519 13 5 2012 U.S.A. Colorado Montrose Uncompahgre Basin: adobe hills N of Cedar Creek off Kinnikin Road, ca 7.5 air mi SE of Montrose. Adobe hillside. 6420 6800 ft. 38.41648° N, 107.75956° W; NAD 83, , GPS reading T48N R8W S16 NW1/4 38.41648 -107.75956 NAD 83 GPS reading Flowering 107 RM 859673 Irwin 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-153795 Joshua J. Irwin 5476 23 6 2011 U.S.A Idaho Custer Salmon River: benchland on the south side of the Salmon River between Gerry Gulch and Shep Creek, 10.4 air mi NNE of Challis. <25 plants estimated in xeric soil within desert scrub vegetation, no slope, trachyandesite geology. 4905 ft. T15N R20E S17 44.63608 -114.12452 NAD 83 30 m. Flowering N N 108 RM 870623 Kirkpatrick, Michael 2011 USFS USFS0060816 Asteraceae Tetradymia spinosa Hook. & Arn. RM-144146 Michael K. Kirkpatrick 5467 1 6 2011 U.S.A. Colorado Garfield Colorado River Valley: W of the mouth of Smith Gulch, N of I-70 along a frontage road, ca 5 air mi SW of Parachute. Shrink-swell clay slopes dominated by Atriplex, Sarcobatus, and Stanleya. 5300 5400 ft. 39.3986° N, 108.1373° W; NAD 83, , GPS reading T7S R96W S32 N1/2 39.3986 -108.1373 NAD 83 GPS reading Flowering and Fruiting N USFS0060816 109 RM 871829 Fertig Misc RM 914798 RM0315647 Asteraceae Tetradymia spinosa Hook. & Arn. RM-143718 Walter Fertig 24791 28 6 2009 U.S.A. Wyoming Sweetwater Green River Basin: ca 0.8 mi NW of Meadow Springs Wash, 1.1 mi SE of Wildcat Butte, 15 mi ENE of Lyman. Wyoming big sagebrush grassland on gravelly clay soil; with scattered cushion plant openings with Eremogone hookeri, Eriogonum caespitosum, Stenotus acaulis, Achnatherum hymenoides. 6770 ft. zone 12, 580696E, 4587655N; NAD 83, Specimen Label T17N R112W S23 NE1/4 SW1/4 Vegetative cover 40-50%. Flowering and Fruiting N RM0315647 N 110 RM 873211 Brummer 2010 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-133548 Lori E. Brummer 76 B. E. Nelson 3 6 2010 U.S.A. Colorado Montrose Gunnison Gorge National Conservation Area: Eagle Valley Trailhead in Adobe Hills about 5.5 air mi E of Olathe. Adobe hills. 5760 5820 ft. 38.6042° N, 107.8843° W to 38.6055° N, 107.885° W; NAD 83, , GPS reading T50N R9W S9 South1/4; also N1/4 S16 38.6042 -107.8843 NAD 83 GPS reading Flowering N 111 RM 875348 Brummer 2010 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.
Annotated by Lori E. Brummer. RM-134597 Michael K. Kirkpatrick 11 B. E. Nelson, Lori E. Brummer 5 5 2010 U.S.A. Colorado Delta Grand Mesa: foothills at west end of the mesa at the end of Wells Gulch Road in upper Wells Gulch, ca 11.5 air mi NW of Delta. Pinyon/juniper woodland and mixed shrub community on ridges and slopes. 6200 6780 ft. 38.8646° N, 108.2162° W to 38.8679° N, 108.2135° W; NAD 83, , GPS reading T14S R97W S3 E1/2; also NW1/4 S10 38.8646 -108.2162 NAD 83 GPS reading Buds N 112 RM 875801 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143153 Lori E. Brummer 2592 16 5 2011 U.S.A. Colorado Delta Gunnison Gorge National Conservation Area: Smith Mountain River Overlook, ca 8 air mi ENE of Delta. Sandstone mesa on adobe hillside; desert grassland and shrub community. 5600 ft. 38.7732° N, 107.932° W to 38.7702° N, 107.92658° W; NAD 83, , GPS reading T15S R94W S5 SW1/4; also NW1/5 S8 38.7732 -107.932 NAD 83 GPS reading Flowering N 113 RM 875892 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. RM-143156 Lori E. Brummer 2683 17 5 2011 U.S.A. Colorado Delta Uncompahgre Plateau: Escalante Canyon, McCarthy Trail, ca 11.5 air mi W of Delta. Juniper grasslands on clay hillsides with sandstone mesa tops. 4950 6100 ft. 38.738° N, 108.2674° W to 38.7456° N, 108.2781° W to 38.735° N, 108.2933° W; NAD 83, , GPS reading T15S R97W S19 N1/2; also South1/2 S18 and T15S R98W S24 W1/2 38.738 -108.2674 NAD 83 GPS reading Flowering N 114 RM 876040 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143160 Lori E. Brummer 2831 21 5 2011 U.S.A. Colorado Delta BLM Lands near Delta, lower slopes of Grand Mesa, ca 12.5 air mi NW of Delta. Desert shrub and grasslands on adobe mesas and hills with basalt boulders. 5860 6000 ft. 38.8518° N, 108.2544° W to 38.8475° N, 108.2558° W; NAD 83, , GPS reading T14S R97W S8 E1/2 38.8518 -108.2544 NAD 83 GPS reading Flowering N 115 RM 876081 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143161 Lori E. Brummer 2872 21 5 2011 U.S.A. Colorado Mesa Kannah Creek Road, ca 3.5 road mi E of U.S. Hwy 50, mesas and hills of lower Grand Mesa. Desert shrub and grasslands on adobe mesa with basalt boulders. 5130 5380 ft. 38.9299° N, 108.3318° W to 38.9212° N, 108.3337° W; NAD 83, , GPS reading T3S R2E S2 E1/2 38.9299 -108.3318 NAD 83 GPS reading Flowering N 116 RM 876238 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143280 Lori E. Brummer 3029 23 5 2011 U.S.A. Colorado Montrose Uncompahgre Plateau: BLM lands near Colona, off BLM Road 3515, ca 8.5 mi S of Montrose. Desert grasslands with scattered juniper on adobe hills. 6350 6540 ft. 38.3729° N, 107.8574° W to 38.367° N, 107.8566° W; NAD 83, , GPS reading T48N R9W S33 E1/2 38.3729 -107.8574 NAD 83 GPS reading Flowering N 117 RM 876434 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143290 Lori E. Brummer 3225 27 5 2011 U.S.A. Colorado Mesa Plateau Valley: lower north slopes of Indian Peak, ca 25 air mi NE of Grand Junction. Scattered juniper and desert grassland on clay hills with sandstone outcrops. 5240 5640 ft. 39.2072° N, 108.1284° W to 39.2003° N, 108.1398° W; NAD 83, , GPS reading T10S R96W S8 N1/2 39.2072 -108.1284 NAD 83 GPS reading Flowering N 118 RM 876674 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143311 Lori E. Brummer 3465 31 5 2011 U.S.A. Colorado Montrose Uncompahgre Basin: BLM lands N of Buckhorn Road, ca 10-11.5 air mi SE of Montrose. Desert shrub and grassland on adobe hills. 6670 7030 ft. 38.3763° N, 107.7566° W to 38.35° N, 107.7454° W; NAD 83, , GPS reading T47N R8W S4; also T48N R8W S33 38.3763 -107.7566 NAD 83 GPS reading Flowering N 119 RM 876763 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143313 Lori E. Brummer 3554 2 6 2011 U.S.A. Colorado Delta McDonald Mesa: adobe hills N of McDonald Creek, ca 24 air mi ENE of Delta. Adobe hills and slopes. 5930 6280 ft. 38.7782° N, 107.6144° W to 38.7726° N, 107.6279° W; NAD 83, , GPS reading T15S R92W S1 South1/2 38.7782 -107.6144 NAD 83 GPS reading Flowering N 120 RM 876802 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143314 Lori E. Brummer 3593 2 6 2011 U.S.A. Colorado Delta Grand Mesa: Petrie Mesa, ca 7 air mi NNW of Delta. Basalt covered mesa with adobe slopes; desert grassland. 5700 6280 ft. 38.83269° N, 108.0996° W to 38.8248° N, 108.0803° W; NAD 83, , GPS reading T14S R96W S14 South1/2; also NE1/4 S23 38.83269 -108.0996 NAD 83 GPS reading Flowering and Fruiting N 121 RM 877045 Brummer 2011 RM Asteraceae Tetradymia spinosa Hook. & Arn. 1. Tetradymia spinosa Hook. & Arn.. RM-143405 Lori E. Brummer 3836 11 6 2011 U.S.A. Colorado Delta Uncompahgre Basin: Peach Valley, north end of Candy Lane, ca 12 air mi N of Montrose. Adobe badlands. 5580 5680 ft. 38.6344° N, 107.9017° W to 38.6384° N, 107.9016° W; NAD 83, , GPS reading T51N R9W S32 South1/2 38.6344 -107.9017 NAD 83 GPS reading Flowering and Fruiting N 122 RM 89312 Refsdal 1995 RM 634660 RM0315640 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13704 B. E. Nelson 35292 C. H. Refsdal and Laura Welp 20 6 1995 U.S.A. Wyoming Sweetwater Basins and Mountains of Southwest Wyoming: Flaming Gorge National Recreation Area: small cove on east side ca 1.5 mi below Blacks Fork, ca 4 air mi NE of Buckboard Crossing; ca 17.5 air mi S of Green River. Shaly benches and slopes, sandstone outcrops, cobblestone ridgetops, and sandy areas with scattered desert shrubs and greasewood bottom. 6040 6290 ft. 41.2811° N, 109.5308° W; uncertainty 1 mi. T15N R108W S13 SE1/4; also T15N R107W S18 SW1/4 41.2811 -109.5308 1 mi. Flowering and Fruiting N RM0315640 N 123 RM 89369 Refsdal 1995 RM 634659 RM0315641 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13706 B. E. Nelson 35349 C. H. Refsdal and Laura Welp 20 6 1995 U.S.A. Wyoming Sweetwater Basins and Mountains of Southwest Wyoming: Flaming Gorge National Recreation Area: canyon N of North Chimney Rock and E of the Green River, ca 11 air mi S of Green River. Steep slopes with areas of thin talus vegetated with areas of sagebrush, desert shrubs, or juniper. 6040 6890 ft. 41.3808° N, 109.4167° W; uncertainty 2 mi. T16N R107W S12 South1/2; also N1/2 S13 41.3808 -109.4167 2 mi. Flowering and Fruiting N RM0315641 N 124 RM 89444 Refsdal 1995 RM 634658 RM0315642 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13707 B. E. Nelson 35423a C. H. Refsdal and Laura Welp 20 6 1995 U.S.A. Wyoming Sweetwater Basins and Mountains of Southwest Wyoming: Flaming Gorge National Recreation Area: west side of Flaming Gorge Reservoir between Firehole Canyon and Sage Creek Basin, ca 13 air mi S of Green River. Sandy clay slopes with scattered rock, dominated by desert shrubs. 6040 6240 ft. 41.3383° N, 109.455° W; uncertainty 1 mi. T16N R107W S27 W1/4; also E1/4 S28 41.3383 -109.455 1 mi. Flowering and Fruiting N RM0315642 N 125 RM 89520 Refsdal 1995 RM 634657 RM0315643 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13709 B. E. Nelson 35496 C. H. Refsdal and Laura Welp 20 6 1995 U.S.A. Wyoming Sweetwater Basins and Mountains of Southwest Wyoming: Flaming Gorge National Recreation Area: south peninsula at the confluence of Blacks Fork and Green River, ca 17 air mi S of Green River. Sandy slopes dominated by desert shrubs. 6120 6264 ft. 41.2814° N, 109.55° W; uncertainty 0.5 mi. T15N R108W S14 NE1/4 41.2814 -109.55 1 mi. Flowering and Fruiting N RM0315643 N 126 RM 89556 Refsdal 1995 RM 634656 RM0315644 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13715 B. E. Nelson 36083 C. H. Refsdal 3 7 1995 U.S.A. Wyoming Lincoln Basins and Mountains of Southwest Wyoming: benchland between Zieglers Wash and Dry Muddy Creek ca 9 air mi WNW of Granger; ca 24.5 air mi SE of Kemmerer. Salt desert shrub on soft clays and clay-chert ridgetops, sagebrush bottoms and sparsely vegetated slopes, some areas of gray-green shale. 6460 6500 ft. 41.6431° N, 110.1239° W T19N R113W S12 SW1/4 41.6431 -110.1239 N N Flowering and Fruiting N RM0315644 N 127 RM 89669 Refsdal 1995 RM 634655 RM0315645 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13716 B. E. Nelson 36195 C. H. Refsdal 3 7 1995 U.S.A. Wyoming Lincoln Basins and Mountains of Southwest Wyoming: benchland between Zieglers Wash and Dry Muddy Creek ca 13 air mi WNW of Granger; ca 22 air mi SE of Kemmerer. Desert shrubs on vegetated low sand dunes, clay slopes, conglomerate ridges, and sparsely vegetated slopes. 6590 6680 ft. 41.6711° N, 110.2008° W; uncertainty 1 mi. T20N R113W S32 SE1/4; also SW1/4 S33 41.6711 -110.2008 1 mi. Flowering and Fruiting N RM0315645 N 128 RM 89688 Refsdal 1995 RM 634654 RM0315646 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13717 B. E. Nelson 36365 C. H. Refsdal 7 7 1995 U.S.A. Wyoming Uinta Basins and Mountains of Southwest Wyoming: Bridger Butte, ca 5.5 air mi WSW of Fort Bridger; ca 25.5 air mi E of Evanston. Badland slopes with bentonite and cobblestones, with patches of juniper and sagebrush on the flatter areas. 7300 7500 ft. 41.279° N, 110.4772° W; uncertainty 1 mi. T15N R116W S15 South1/2 41.279 -110.4772 1 mi. Flowering and Fruiting N RM0315646 N 129 RM 90447 Refsdal 1995 RM 634664 RM0315639 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13750 C. H. Refsdal 3890 10 6 1995 U.S.A. Wyoming Sweetwater Basins and Mountains of Southwest Wyoming: ca 19 air mi SW of Green River; 12.6 mi W from Wyo Hwy 530 on gravel access road. Badlands, chert, dry clays with sand. 6400 6480 ft. 41.3284° N, 109.8483° W; uncertainty 1 mi., Digital Map T16N R110W S30 SE1/4; also SW1/4 S29, E1/2 S31; also NW1/4 S32 41.3284 -109.8483 1 mi. GeoLocate AP Flowering and Fruiting N RM0315639 N 130 RM 907292 RMHERB2 RM 961344 RM0220309 Asteraceae Tetradymia spinosa Hook. & Arn. RM-452382 Patricia P. Douglas 195 Nancy E. Hastings 20 5 2000 U.S.A. Wyoming Big Horn Lovell Training Area: hogback and slope ca 4.2 km SW of Levell Peak (1573 m), ca 2.0 km E of U.S. Hwy 310. Northwest to west-facing (up to 40 deg) Wyoming big sagebrush; Oceanet-Rock Outcrop complex; sandy clay to silty clay with pebbles to cobbles and rock outcrops; with Artemisia tridentata, A. frigida, A. spinescens, Grayia spinosa, Sarcobatus vermiculatus, Atriplex gardneri, Rhus trilobata, Psoralidium lanceolatum, Opuntia polyacantha. 1280 m. zone DMC, 713464E, 4961164N; unknown, GPS reading N Levell Peak = Levell survey point. Scattered; ascending to erect shrub; 4 dm tall; disk yellow. Flowering and Fruiting N RM0220309 N 131 RM 907294 RMHERB2 RM 961345 RM0220310 Asteraceae Tetradymia spinosa Hook. & Arn. RM-452383 Patricia P. Douglas 230 Nancy E. Hastings 21 5 2000 U.S.A. Wyoming Big Horn Lovell Training Area: drainage, west end of area ca 4.4 km SW of Levell Peak (1573 m), ca 2.2 km E of U.S. Hwy 310. Level to 20 deg; greasewood desert shrubland/Wyoming big sagebrush; badland; silty clay to sandy clay loam; Sarcobatus vermiculatus, Artemisia tridentata, Tamarix chinensis, Schoenocrambe linifolia, Chorispora tenella, Camissonia scapoidea. 1280 1305 m. zone DMC, 713967E, 4960006N to 714308E, 4960090N to 714156E, 4959451N; unknown, GPS reading N Levell Peak = Levell survey point. Infrequent; ascending shrub; 3 dm tall; disk yellow. Flowering and Fruiting N RM0220310 N 132 RM 90984 Refsdal 1995 RM 634663 RM0315638 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13770 C. H. Refsdal 4421 27 6 1995 U.S.A. Wyoming Sweetwater [location and coordinates withheld] Sandy plateaus and clay bottoms, rolling hills with salt desert shrub. 6260 6360 ft. Flowering and Fruiting N RM0315638 N 133 RM 91182 Refsdal 1995 RM 634662 RM0315637 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13776 C. H. Refsdal 4616 30 6 1995 U.S.A. Wyoming Lincoln Basins and Mountains of Southwest Wyoming: ca 12 air mi SE of Opal; 18.3 mi E of junction U.S. Hwy 30/Wyo Hwy 240. Semi-barren desert slopes, shale ridgetops and slopes, some vegetated sand dunes. 6400 6500 ft. 41.6847° N, 110.0647° W; uncertainty 1 mi. T20N R112W S28 E1/2 41.6847 -110.0647 1 mi. Flowering and Fruiting N RM0315637 N 134 RM 91265 Refsdal 1995 RM 634661 RM0315629 Asteraceae Tetradymia spinosa Hook. & Arn. RM-13778 C. H. Refsdal 4698 30 6 1995 U.S.A. Wyoming Lincoln Basins and Mountains of Southwest Wyoming: ca 10 air mi ENE of Opal. Gravelly clay soils, semi-barren sagebrush slopes, north aspect and ridgetop, some sandy bottoms. 6700 6710 ft. 41.9158° N, 110.2681° W T22N R113W S5 E1/2; also W1/2 S4 41.9158 -110.2681 Flowering and Fruiting N RM0315629 N 135 RMT 1446 RM Types RM 63964 RM0001473 Asteraceae Tetradymia spinosa Hook. & Arn. var. longispina M. E. Jones var. nov. an RMT-1182 Marcus E. Jones 5110 26 4 1894 U.S.A. Utah Washington St. George. [County not given on label.] 3000 ft. Flowering RM0001473 Y Isotype for Tetradymia spinosa Hook. & Arn. var. longispina M. E. Jones. Proc. California Acad. Sci. II. 5: 698. 1895.