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RM USFS 851612 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 55068 Ronald L. Hartman David Rosenthal 1996 7 10 192 U.S.A. Wyoming Park Northern Absaroka Area: Sheep Mountain, north-central access from 0.4-0.8 air mi S of County Road 6FU on west branch of central drainage. -109.3051 44.479 1783 1890 Along stream though limestone canyon with some open, grassy areas. Phenology: flowering. RM USFS 851613 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 55988 Ronald L. Hartman David Rosenthal 1996 8 16 229 U.S.A. Wyoming Park Northern Absaroka Area: Deer Creek Pass to 1 trail mi NE. -109.7597 44.1402 2987 3170 Alpine slopes along trail. Phenology: flowering. RM RM 853420 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 16738 B. E. Nelson 1989 6 21 172 U.S.A. Wyoming Park Northern Absarokas: on the Reef, ca 2 mi NE of Cathedral Cliffs, ca 33 air mi NW of Cody. -109.55222 44.84806 1 2286 Meadow and open area above limestone cliffs. Phenology: flowering. RM USFS 853423 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1095b David Rosenthal 1997 6 20 171 U.S.A. Wyoming Park Northern Absaroka Area: Shoshone National Forest: from Four Bear Trailhead to peak 8245T (Jim Mountain Quad), E of Jim Mountain and NW of Four Bear, ca 2.5 mi E of town of Wapiti on U.S. Hwy 14, 16, and 20. -109.406 44.5079 2134 2286 Sagebrush slopes leading to meadows on north facing slopes. Phenology: flowering. RM USFS 853422 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2611 David Rosenthal 1997 7 18 199 U.S.A. Wyoming Park Northern Absaroka Area: Shoshone National Forest: Northern Absaroka Wilderness: Dead Indian Creek Trail, ca 21 air mi NW of Cody. -109.4352 44.7323 1951 1981 Sagebrush slopes with scattered limber pine, juniper, and spruce/fir forest in moist areas. Phenology: flowering. RM USFS 853421 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2656 David Rosenthal 1997 7 18 199 U.S.A. Wyoming Park Northern Absaroka Area: Shoshone National Forest: Northern Absaroka Wilderness: Dead Indian Creek Trail, ca 21 air mi NW of Cody. -109.4352 44.7033 1981 2073 Sagebrush slopes with scattered limber pine, juniper, and spruce/fir forest in moist areas. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 56819b B. E. Nelson Peter Ebertowski 2002 6 13 164 U.S.A. Wyoming Weston Thunder Basin National Grassland and Vicinity: between Buffalo Creek Road and Alkali Draw along a tributary, ca 3 air mi NNW of Goose Butte, ca 8.5 air mi W of Upton. -104.8118 44.0902 1 1375 1396 Slopes and bottom of a large draw. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 56889 B. E. Nelson Peter Ebertowski 2002 6 13 164 U.S.A. Wyoming Weston Thunder Basin National Grassland and Vicinity: Pine Ridge, ca 1 air mi W of Wyo Hwy 116, ca 4.5 air mi N of Upton. -104.6108 44.1464 1 1368 1408 Ponderosa pine/ Rocky Mountain juniper woods on shale. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 57189 B. E. Nelson 2002 6 18 169 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: ridge at the heads of Short and Logan creeks, ca 4 air mi W to WSW of Soda Well; ca 24-25 air mi N of Gillette. -105.3798 44.6292 1 1310 1378 Idaho fescue meadow, scattered sagebrush, disturbed patches, and edge of ponderosa pine forest on scoria ridge. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 57254 B. E. Nelson 2002 6 18 169 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: along West Fork Duck Creek, ca 7.5 air mi NE of Soda Well, ca 28 air mi NE of Gillette. -105.1975 44.7173 1 1201 1219 Grassland and sagebrush-grassland. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 156 Peter J. Ebertowski 2002 6 18 169 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: along ridge running N-S, E and above Short Creek, ca 26 air mi NNE of Gillette; ca 3 air mi W of Weston. -105.3798 44.6439 1 1286 1378 Idaho fescue grassland. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4063 Peter J. Ebertowski 2003 5 30 150 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: badlands ca 1 mi NW of Soda Well, on Forest Road 1247B, ca 31 air mi NNE of Gillette; ca 34 air mi NNW of Moorcroft. -105.2785 44.7026 1176 1250 Sagebrush grassland, with ravines containing ponderosa pine and Rocky Mountain juniper. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4079 Peter J. Ebertowski 2003 5 30 150 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: badlands SW of Antelope Creek, on two-track road, ca 34 air mi NNE of Gillette; ca 37 air mi NNW of Moorcroft. -105.2785 44.7467 1176 1213 Slope of broad grassy ravine. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4603 Peter J. Ebertowski 2003 6 10 161 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: hills SE of and draining to Dry Forks Spring Creek on two-track off York or Forest Road 900, ca 30 air mi NNE of Gillette; ca 32 air mi NW of Moorcroft. -105.238 44.6733 1189 1225 Stipa comata - Koeleria grassland with patches of Schizachyrium. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5234 Peter J. Ebertowski 2003 6 20 171 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: hills W of Little Powder River S of Coal Creek on dirt road off of Wyo Hwy 59, ca 23 air mi NNE of Gillette; ca 31 air mi NW of Moorcroft. -105.3595 44.5998 1204 1353 Watercourses between clay hills and creek. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5693 Peter J. Ebertowski 2003 6 29 180 U.S.A. Wyoming Weston Thunder Basin National Grassland and Vicinity: bentonite pit W of East Iron Creek, on Forest Road 914, ca 8 air mi ESE of Upton; ca 20 air mi NW of Newcastle. -104.4901 44.0481 1292 1329 Pinus ponderosa forest. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5908 Peter J. Ebertowski 2003 7 3 184 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: hills N of confluence of North Fork Duck Creek and Duck Creek, off dirt road to Dickinson Ranch, ca 39 air mi NNE of Gillette; ca 39 air mi NNW of Moorcroft. -105.1883 44.8086 1158 1201 Grassy ravine in silver sagebrush grassland. Phenology: fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5931 Peter J. Ebertowski 2003 7 3 184 U.S.A. Wyoming Campbell Thunder Basin National Grassland and Vicinity: low hills N of Flat Creek, on LA Ranch or County Road 10, ca 33 air mi NE of Gillette; ca 31 air mi NNW of Moorcroft. -105.157 44.688 1268 1286 Silver sagebrush grassland. Phenology: flowering & fruiting. RM RM 333334 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6878 Keith H. Dueholm 1979 6 10 161 U.S.A. Wyoming Natrona Powder River Basin: Willow Creek, ca 18 air mi SSW of Kaycee. -106.75278 43.46167 1 1615 Shaley pine covered slopes above creek, sagebrush plain at summit of hills, sandy flats along creek, lower clay slopes; sagebrush plain. Phenology: flowering & fruiting. RM RM 739452 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 21180 Erwin F. Evert 1991 6 27 178 U.S.A. Montana Carbon Beartooth Mountains: Custer National Forest: Sand Dunes Picnic Ground, ca 17 mi NW of Red Lodge. -109.5965 45.2508 1676 Meadow opening in lodgepole pine forest with Lupinus wyethii, Delphinium bicolor, Arnica sororia, and Koeleria macrantha. Phenology: flowering. RM RM 739343 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 21503 Erwin F. Evert 1991 7 8 189 U.S.A. Montana Park Gallatin Range: Gallatin National Forest: Yankee Jim Canyon, on west side of Yellowstone River, ca 12 mi NW of Gardiner. -110.8727 45.1678 1585 Sagebrush-grassland/Douglas fir woodland mosaic with Elymus spicatus, Stipa comata, Artemisia tridentata, and Pinus flexilis. Phenology: flowering. RM RM 754690 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 22791 Erwin F. Evert 1992 6 12 164 U.S.A. Montana Stillwater Ca 1/4-1/2 mi S of Cliff Swallow fishing access site, ca 10 mi W of Absarokee. -109.6345 45.5161 1432 Ponderosa pine woodland and openings with Arenaria congesta var. lithophila, Agropyron spicatum, Leucopoa kingii, and Claytonia perfoliata Phenology: flowering & fruiting. RM RM 754486 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 23893 Erwin F. Evert 1992 7 17 199 U.S.A. Montana Gallatin Madison Range: Gallatin National Forest: along trail ca 1 mi SW of Albino Lake, ca 12 mi S of Big Sky. -111.3014 45.0803 2195 Mesic sagebrush-grassland with Festuca idahoensis, Stipa richardsonii, Pentaphylloides floribunda, and Artemisia cana. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 25092 Erwin F. Evert 1993 6 19 170 U.S.A. Idaho Fremont [location and coordinates withheld] 1670 Seasonally wet meadow between forks of creek with Veronica perigrina, Plagiobothrys scouleri, Wyethia amplexicaulis, and Allium geyeri. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 25191 Erwin F. Evert 1993 6 20 171 U.S.A. Idaho Teton Targhee National Forest: Big Hole Mountains: along south side of Milk Creek Road, ca 4 mi S of Idaho Hwy 33. -111.3296 43.8179 2088 Sagebrush-grassland with Viola vallicola, Microseris nutans, Phlox longifolia, and Wyethia amplexicaulis. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 25588a Erwin F. Evert 1993 6 29 180 U.S.A. Wyoming Hot Springs Southeastern Absarokas: ridge 1/4-1/2 mi N and W of Little Grass Creek, in foothills ca 20 mi S of Meeteetse. -108.8225 43.8507 2073 2134 Rocky sagebrush-grassland and limber pine woodland with Ipomopsis spicata ssp. spicata, Hymenoxys acaulis, Penstemon laricifolius, and Festuca idahoensis. RM RM 610690 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 26589b Erwin F. Evert 1993 8 2 214 U.S.A. Montana Madison Madison Range: Beaverhead National Forest: ca 1/2 mi W of Hammond Creek Ranger Station, 12 mi E of Ennis. -111.5267 45.3559 1951 Meadow openings and edge of Douglas fir forest with Medicago lupulina, Phleum pratense, Collomia linearis, and Geranium viscosissimum. Phenology: flowering. RM RM 783344 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 28793 Erwin F. Evert 1995 6 7 158 U.S.A. Wyoming Hot Springs [location and coordinates withheld] 1402 1493 Sagebrush-grassland with scattered Juniperus scopulorum, Lewisia rediviva, Koeleria macrantha, and Carex filifolia. Phenology: flowering. RM RM 783087 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 29849 Erwin F. Evert 1995 7 6 187 U.S.A. Montana Sweet Grass Beartooth Mountains: Gallatin National Forest: along West Bridger Creek, ca 15 mi SSE of Big Timber. -109.8607 45.618 1573 Meadow opening with Festuca idahoensis, Delphinium occidentale, Microsteris gracilis, and Arnica fulgens. Phenology: flowering. RM RM 787145 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 31202 Erwin F. Evert 1996 6 14 166 U.S.A. Montana Park Gallatin Range foothills: ridge 1/8-1/4 mi N of Cokedale Road, 6 mi W of Livingston. -110.6834 45.6471 1 1554 1615 Grassland/forbland on south facing slope and rocky breaks with scattered juniper and limber pine. Phenology: flowering & fruiting. RM RM 787528 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 31303 Erwin F. Evert 1996 6 21 173 U.S.A. Montana Park Absaroka Mountains foothills: Gallatin National Forest: 2 1/2 mi NE of Gardiner, 0-1/3 mi N of the Jardine Road. -110.668 45.0513 1 1935 2012 Sagebrush-grassland on south facing slope with Artemisia nova, Agropyron spicatum, Koeleria macrantha, and Balsamorhiza sagittata. Phenology: flowering. RM RM 787415 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 31525 Erwin F. Evert 1996 6 22 174 U.S.A. Montana Park Absaroka Mountains: Gallatin National Forest: along Gold Prize Creek, 0-1/3 mi E of confluence with Sixmile Creek, 8 mi S of Emigrant. -110.7692 45.2584 1707 1768 Grassland/forbland with Festuca idahoensis, Bromus tectorum, and Phacelia linearis on south facing slope north of creek. Phenology: flowering & fruiting. RM RM 787877 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 32050 Erwin F. Evert 1996 7 9 191 U.S.A. Wyoming Teton Gros Ventre Mountains: Bridger-Teton National Forest: Soda Lake 2 mi S of the Gros Ventre River, 28 mi E of Jackson. -110.2577 43.5332 2393 Sagebrush-grassland with Danthonia unispicata, Castilleja flava, and Eriogonum brevicaule var. laxiflorum. Phenology: flowering. RM RM 818200 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 32804 Erwin F. Evert 1997 6 10 161 U.S.A. Montana Carbon Ridge 4 mi NE of Fromberg; 1.5 mi E of U.S. Hwy 310. -108.8324 45.4433 1 1189 1219 Disturbed sagebrush-grassland with Agropyron spicatum, Bromus tectorum, and Alyssum alyssoides. Phenology: flowering. RM RM 818774 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 33425 Erwin F. Evert 1997 6 28 179 U.S.A. Montana Park Ridge and draw immediately E of the Yellowstone River, ca 2.5 mi S of Livingston. 1463 1493 Grassland with some scattered limber pine and Douglas fir. Phenology: flowering & fruiting. RM RM 820224 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 34820 Erwin F. Evert 1998 6 2 153 U.S.A. Montana Carbon Wolf Canyon 1 mi S of the Yellowstone River, ca 14 mi WSW of Laurel. -109.0381 45.5889 1 1097 1128 Sides of canyon in rocky open ponderosa pine forest with Agropyron spicatum, Festuca idahoensis, and Rhus trilobata in the understory. Phenology: flowering. RM RM 820358 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 35107 Erwin F. Evert 1998 6 13 164 U.S.A. Wyoming Fremont Bridger Mountains: south side of Birdseye Mountain, 1.5 mi SW of Birdseye Pass; 14 mi N of Shoshoni. -108.1022 43.4349 1 1960 Sagebrush-grassland with scattered juniper, Carex filifolia, Koeleria macrantha, and Lomatium orientale. Phenology: flowering. RM RM 821017 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 35565 Erwin F. Evert 1998 7 8 189 U.S.A. Montana Sweet Grass Absaroka-Beartooth Mountains: Gallatin National Forest: Hells Canyon Campground along Boulder River, 35 mi SW of Big Timber. -110.2104 45.3559 1 1890 1920 Just southeast of campground on rock outcroppings in open Douglas fir forest with Festuca idahoensis, Lomatium cous, and Antennaria anaphaloides. Phenology: flowering & fruiting. RM RM 822297 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36513 Erwin F. Evert 1999 6 4 155 U.S.A. Montana Stillwater Coal Mine Coulee, ca 10 mi SE of Columbus. -109.1409 45.5743 1 1128 Grassland and open ponderosa pine forest with Koeleria macrantha, Agropyron spicatum, Bouteloua gracilis, and Balsamorhiza incana. Phenology: flowering. RM RM 822404 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36603 Erwin F. Evert 1999 6 5 156 U.S.A. Montana Stillwater Ridge just N of the Huntley Creek Road, 4 mi SW of Columbus. -109.326 45.618 1 1189 1219 Grassland and open ponderosa pine forest on south-facing slope with Koeleria macrantha, Cerastium arvense, Pediomelum esculentum, and Zigadenus venenosus var. gramineus. Phenology: flowering & fruiting. RM RM 822379 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36632 Erwin F. Evert 1999 6 5 156 U.S.A. Montana Sweet Grass Ridge ca 1 mi S of the Yellowstone River and 2 mi WSW of Reed Point. -109.5728 45.7053 1 1219 1250 Grassland and open ponderosa pine forest with Purshia tridentata, Geum triflorum, Arnica sororia, and Astragalus miser var. decumbens. Phenology: flowering. RM RM 822488 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36718 Erwin F. Evert 1999 6 11 162 U.S.A. Montana Park Absaroka Mountains: Yellowstone National Park: Black Canyon of the Yellowstone, along the Yellowstone River between Crevice Lake and Knowles Falls. -110.5862 45.0077 1 1707 1737 Douglas fir forest and openings with Zigadenus venenosus var. gamineus, Geum triflorum, and Collinsia parviflora. Phenology: flowering & fruiting. RM RM 822611 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36829 Erwin F. Evert 1999 6 20 171 U.S.A. Wyoming Park Yellowstone Plateau: Yellowstone National Park: along the east side of Hellroaring Creek, ca 1 mi N of the Yellowstone River. -110.4506 44.9649 1 2012 Sagebrush-grassland with Phlox longifolia, Festuca idahoensis, and Erigeron linearis. Phenology: flowering. RM RM 822666 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36920 Erwin F. Evert 1999 7 10 191 U.S.A. Wyoming Park Absaroka Mountains: Yellowstone National Park: just E of Slough Creek, ca 3 mi NE of Slough Creek Campground. -110.247 44.9504 1 2006 Rock outcroppings with Penstemon fruticosus, Woodsia scopulina, and Linanthus septentrionalis. Phenology: flowering & fruiting. RM RM 738081 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 26606 Ronald L. Hartman 1990 7 6 187 U.S.A. Wyoming Teton Mount Leidy Highland Area: Gray Hills: ridge E of Slate Creek and slope to east, ca 5 air mi NW of west end of Lower Slide Lake. -110.38 43.64639 2225 2408 Aspen grove and meadows. RM RM 660425 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 51563 Ronald L. Hartman 1995 6 28 179 U.S.A. Wyoming Teton Gros Ventre Area: ca 7 air mi NE of Jackson. -110.6362 43.5476 1 2073 2103 Fen and surrounding sagebrush plains. Phenology: flowering & fruiting. RM RM 660423 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 51127 Ronald L. Hartman 1995 6 23 174 U.S.A. Wyoming Teton Mount Leidy Highland Area: Road (FS 30160) 0.7 road mi SW of Hatchet Campground. -110.3672 43.8224 1 2225 2256 Sandy soil with patches of lodgepole pine, aspen, and occasional pond. Phenology: flowering. RM RM 660424 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 51147 Ronald L. Hartman 1995 6 23 174 U.S.A. Wyoming Teton Mount Leidy Highland Area: Road (FS 30160) 0.7 road mi SW of Hatchet Campground. -110.3672 43.8224 1 2225 2256 Sandy soil with patches of lodgepole pine, aspen, and occasional pond. Phenology: flowering. RM RM 660426 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 51737 Ronald L. Hartman 1995 7 14 195 U.S.A. Wyoming Teton Mount Leidy Highland Area: Spread Creek, ca 5 air mi SW of Black Rock Ranger Station. -110.4171 43.778 1 2225 2286 Bluffs overlooking creek, often sandy, slopes and along creek, and wooded areas. Phenology: flowering & fruiting. RM RM 660427 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 52068 Ronald L. Hartman 1995 7 16 197 U.S.A. Wyoming Teton Mount Leidy Highland Area: ca 6 air mi SSW of Moran. -110.5515 43.7633 1 2225 2256 Grassy area. Phenology: flowering & fruiting. RM RM 785851 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36815 Loy R. Phillippe Richard L. Larimore, J. L. Crane, Daniel T. Busemeyer 2004 6 14 166 U.S.A. Wyoming Washakie Tensleep Preserve, The Nature Conservancy: southwest flank, foothills of the Big Horn Mountains, ca 10 mi E of Ten Sleep. Monument Hill quad. -107.2136 43.9937 2042 Open upland wet grassland area within the sagebrush-grassland meadow, southwest running (235 deg) with scattered ponderosa pine; area had been recently burned, perhaps previous year; growing with Alyssum desertorum, Antennaria rosea, Arnica sororia, Ray and disk flowers yellow. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3848 Joy Handley 2000 5 19 140 U.S.A. Idaho Adams Payette National Forest and Vicinity: Cuddy Mountains: Wildhorse Canyon across Wildhorse River from Trail Hill, ca 20.5 air mi NW of Council; ca 6.5 air mi SSW of Bear. -116.7282 44.9409 975 1219 Open east-facing hillside dominated by grasses and Symphoricarpos. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4474 Joy Handley 2000 5 27 148 U.S.A. Idaho Washington Payette National Forest and Vicinity: Buckwheat Flats Research Natural Area: along Sage Creek, ca 5 air mi SW of Midvale; ca 12 air mi SW of Cambridge. -116.8428 44.4468 914 1036 Steep north-facing slope dominated by Pseudotsuga menziesii and mesic shrubs. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4692 Joy Handley 2000 6 1 153 U.S.A. Idaho Adams Payette National Forest and Vicinity: Hells Canyon-Seven Devils Scenic Area: along Forest Road 454 at Schoolmarm Gulch, ca 7 air mi N of Cuprum; ca 16 air mi NNE of Oxbow Dam. -116.7079 45.1874 548 640 Roadside of steep canyon dominated by grasses and shrubs, especially Rhus. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5302 Joy Handley Denise L. Fairbanks 2000 6 13 165 U.S.A. Idaho Washington Payette National Forest and Vicinity: Hitt Mountains: along 4WD trail at the top of Neil Gulch, just N of Arrowhead Spring, ca 17 air mi NW of Cambridge; ca 19 air mi NW of Midvale. -116.9882 44.6798 1524 1692 Pinus ponderosa plantation (approx. 25 yrs old) in mixed conifer forest. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5699 Joy Handley 2000 6 20 172 U.S.A. Idaho Adams Payette National Forest and Vicinity: Salmon River Mountains: west-facing slope of Meadows Hill, just N of Fish Lake, ca 5 air mi SE of New Meadows; ca 6 air mi W of McCall. -116.2185 44.9119 1463 1585 West-facing grassy slope. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1099 Joy Handley 1999 6 29 180 U.S.A. Idaho Adams Payette National Forest and Vicinity: Cuddy Mountains Area: Rocky Comfort Flat, ca 21 air mi NW of Council; ca 20.5 air mi W of New Meadows. -116.7079 44.9699 1326 1402 Rocky basalt soil dominated by Elymus spicatus and Festuca idahoensis, interspersed with scablands dominated by Poa secunda and Artemisia tripartita. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1433 Joy Handley 1999 7 5 186 U.S.A. Idaho Adams Payette National Forest and Vicinity: exclosure just W of Summit Gulch on Forest Road 073 (071), ca 3 air mi SW of Bear; ca 21 air mi W of New Meadows. -116.7079 44.9989 1310 Dry flat; rocky bastalt soil; former Pinus ponderosa overstory logged and burned. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1816 Joy Handley 1999 7 12 193 U.S.A. Idaho Adams Payette National Forest and Vicinity: Hells Canyon-Seven Devils Scenic Area: Kinney Point ca 6 air mi NNE of Cuprum; ca 23 air mi NW of New Meadows. -116.6671 45.1729 2118 2172 Dry subalpine meadow/rocky outcrop; dominated by Festuca idahoensis, with Carex geyeri and some Artemisia tridentata. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 94 Joy Handley 1999 6 8 159 U.S.A. Idaho Washington Payette National Forest and Vicinity: Middle Brownlee Creek Road, above Middle Brownlee Creek and below road, ca 14.5 air mi NW of Cambridge; ca 18.5 air mi NNW of Midvale. -116.9072 44.7084 1219 1250 Bench and ridge; basalt, rocky soil; Artemisia tridentata/Purshia tridentata/Elymus spicatus with scattered Pinus ponderosa. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 64148 Ronald L. Hartman 1999 6 1 152 U.S.A. Idaho Washington Payette National Forest and Vicinity: ca 12.5 air mi S of Brownlee Dam. -116.8263 44.6649 1082 1134 Volcanic rocky soil, mixed shrub/grassland, steep slope with ephemeral stream. Phenology: flowering & fruiting. RM RM 645752 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 35817 B. E. Nelson 1995 6 29 180 U.S.A. Wyoming Lincoln Southern Salt River Range and Vicinity: Sublette Range: ridge between Mill and Corral creeks, ca 7 air mi NNE of Cokeville; ca 32.5 air mi NW of Kemmerer. -110.9035 42.1809 2048 2097 Burn in sagebrush-grassland. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36035 B. E. Nelson 1995 6 30 181 U.S.A. Idaho Bear Lake Bear Lake Plateau: east slope of Boundary Ridge near the head of Poison Creek, ca 0.5 mi W of Wyoming, ca 20 air mi SE of Montpelier; ca 5-5.5 air mi W of Cokeville, Wyoming. -111.0625 42.093 2158 2280 Grassy open area on sagebrush slope. Phenology: flowering. RM RM 645706 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36505 B. E. Nelson C. H. Refsdal 1995 7 8 189 U.S.A. Wyoming Lincoln Southern Salt River Range and Vicinity: Snow Hollow, ca 1 mi E of Boundary Ridge, Idaho, ca 6 air mi SW of Cokeville; ca 30.5 air mi NW of Kemmerer. -111.034 42.031 2170 2274 Meadow on sagebrush slope and saddle. Phenology: flowering. RM RM 645705 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 36569 B. E. Nelson C. H. Refsdal 1995 7 10 191 U.S.A. Wyoming Lincoln Southern Salt River Range and Vicinity: Tunp Range: Rock Creek Ridge ca 3 air mi N of Nugget Canyon and U.S. Hwy 30, ca 15.5 air mi SSE of Cokeville; ca 17.5 air mi WNW of Kemmerer. -110.8601 41.8669 1 2176 2298 Open meadows among sagebrush on ridgetop. Phenology: flowering. RM RM 645753 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7692 Thomas Cramer Jane T. Kellett 1995 7 11 192 U.S.A. Wyoming Lincoln Southern Salt River Range and Vicinity: ca 13.5 air mi N of Cokeville; Sublette Range at Raymond Creek. -111.0231 42.27 1951 2012 Grassy hillside with Cercocarpus, and Amelanchier. Phenology: flowering. RM RM 800805 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 52437 B. E. Nelson Luanne Lum 2001 6 7 158 U.S.A. Wyoming Washakie Bighorn Basin: between Sand Point and Blue Bank Draw, ca 1 3/4 air mi S of Nowater or BLM Road 1404, ca 15 air mi WSW of Big Trails; ca 30 air mi SE of Worland. -107.5851 43.6827 1 1591 1634 Swales and more moist areas on slopes. Phenology: flowering. RM RM 800804 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 52568 B. E. Nelson Luanne Lum 2001 6 10 161 U.S.A. Wyoming Park Bighorn Basin: at the head of Sand Spring Draw above Rimrock Basin, ca 9 air mi NE of Meeteetse; ca 25 air mi SE of Cody. -108.7427 44.2339 1 1689 1731 Snow accumulation areas on sandy slopes in the breaks. Phenology: flowering. RM RM 800806 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 434c Luanne Lum Michelle Wilson 2001 7 2 183 U.S.A. Wyoming Washakie Big Horn Mountains: S of Bar C Creek, ca 54 air mi ESE of Thermopolis. -107.1622 43.5205 1 2439 2454 Lodgepole pine and aspen with sagebrush. Phenology: flowering. RM RM 803976 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2180 Luanne Lum 2002 6 4 155 U.S.A. Wyoming Hot Springs Bighorn Basin: along Black Mountain Road on Lake Creek Divide, ca 22 mi ENE of Thermopolis. -107.7856 43.6682 1 1560 1585 Sagebrush and yucca on shale and sandy soil. Phenology: flowering. RM RM 803975 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2394 Luanne Lum 2002 6 8 159 U.S.A. Wyoming Hot Springs Bighorn Basin: along Centennial Road, ca 6.1 air mi ENE of Thermopolis. -108.1262 43.6772 1 1478 1512 Juniper and sagebrush on sandstone. Phenology: flowering. RM RM 803974 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2669 Luanne Lum 2002 6 14 165 U.S.A. Wyoming Washakie Bighorn Basin: W of Nowood River and Wyo Highway 434, ca 4.5 air mi SE of Tensleep. -107.4001 43.9833 1 1379 1408 Juniper and sagebrush. Phenology: flowering. RM RM 803973 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2744 Luanne Lum 2002 6 14 165 U.S.A. Wyoming Washakie Big Horn Mountains: along Rome Hill or County Road 56 S of Billy Creek, ca 16.2 air mi ESE of Ten Sleep and ca 2.3 air mi W of Monument Hill. -107.1791 43.9689 1 2231 2238 Mountain meadow. Phenology: flowering. RM RM 803942 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2937 Luanne Lum 2002 6 22 173 U.S.A. Wyoming Washakie Big Horn Mountains: along County Road 85 or BLM Road 1419, ca 5.3 air mi ESE of Big Trails and ca 22.5 air mi SE of Ten Sleep. -107.2417 43.7512 1 1942 2012 Sagebrush on sandy soil with cobbles. Phenology: flowering & fruiting. RM RM 803941 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3124 Luanne Lum 2002 6 24 175 U.S.A. Wyoming Washakie Big Horn Mountains: along Wyo Hwy 435, ca 10 air mi ENE of Ten Sleep. -107.2795 44.0984 1 1817 1865 Juniper, pine, and sagebrush on sandy soil with cobbles. Phenology: flowering & fruiting. RM RM 803940 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3184 Luanne Lum 2002 6 24 175 U.S.A. Wyoming Washakie Big Horn Mountains: along Wyo Hwy 435, ca 6.7 air mi ENE of Ten Sleep. -107.2594 44.1128 1 1865 2036 Juniper, pine, and sagebrush on sandy soil with cobbles. Phenology: flowering & fruiting. RM RM 803939 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3418b Luanne Lum 2002 6 30 181 U.S.A. Wyoming Big Horn Big Horn Mountains: along Cold Springs Road S of Medicine Lodge Canyon, ca 10 air mi NE of Hyattville and ca 34 air mi NE of Worland. -107.4351 44.3208 1 2411 2432 Juniper and sagebrush. Phenology: flowering. RM RM 803938 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3692 Luanne Lum 2002 7 5 186 U.S.A. Wyoming Washakie Big Horn Mountains: along Forest Road 27 and West Tensleep Creek, ca 12 air mi NE of Ten Sleep and ca 36.5 ENE Worland. -107.2594 44.156 1 2393 2426 Sagebrush and pine forest. Phenology: flowering. RM RM 803907 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5600 Luanne Lum 2002 8 10 222 U.S.A. Wyoming Park Bighorn Basin: along Forest Road 200 at Wood River, ca 21 air mi SW of Meeteetse. -109.1415 43.9246 1 2246 2256 Riparian and mixed coniferous forest. Phenology: flowering. RM USFS 843070 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 337 Rob Massatti 2005 6 13 164 U.S.A. Wyoming Fremont East Slope Wind River Range and Vicinity: southeast side of Fairfield Hill, ca 6 air mi SW of Lander. -108.845 42.7442 2475 2554 Aspen stand in stream gully. Phenology: flowering. RM USFS 843069 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4624 Rob Massatti 2006 5 25 145 U.S.A. Wyoming Fremont East Slope Wind River Range and Vicinity: ca 3 mi SW of Weiser Knoll; ca 15 air mi SSE of Lander. -108.6259 42.6015 2067 2173 Rocky meadow on limestone. Phenology: flowering. RM USFS 843068 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4679 Rob Massatti 2006 5 25 145 U.S.A. Wyoming Fremont East Slope Wind River Range and Vicinity: ca 3 mi SW of Weiser Knoll; ca 15 air mi SSE of Lander. -108.6259 42.6015 2067 2173 Rocky meadow on limestone. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4750 Rachel Newton 2006 6 11 162 U.S.A. Wyoming Crook Wetlands and Adjacent Areas: Inyan Kara Creek, ca 17 air mi NE of Moorcroft. -104.72858 44.44861 1219 Dry Artemisia scrub uplands. Phenology: flowering & fruiting. RM RM 742732 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 25809 N. Duane Atwood 2000 6 20 172 U.S.A. Arizona Apache Chuska Mountains: 1 mi E of Roof Butte. -109.07789 36.46079 1 2682 Ephemeral pond and adjacent Ponderosa community. Phenology: flowering. RM RM 236914 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6296 C. L. Porter 1953 7 2 183 U.S.A. Wyoming Hot Springs Owl Creek Range: (Jones Creek) on Copper Mountain, 9 mi SE of Thermoplis. -108.1223 43.569 2 1859 Meadows. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1985 Robin Jones 1991 7 11 192 U.S.A. Wyoming Hot Springs Owl Creek/Bridger Mountains: Hogback Ridge, ca 15 air mi NW of Hamilton Dome; ca 35 air mi NW of Thermopolis. -108.7194 43.96944 1890 2003 Northeast-facing slope of ridge composed of sandstone and mudstone. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2210 Robin Jones Mabel Jones 1991 7 27 208 U.S.A. Wyoming Hot Springs Owl Creek/Bridger Mountains: South Fork Owl Creek. -109.1242 43.67805 2567 2698 Gravel bars, forested points, willows, and seeps in riparian area. RM RM 169870 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5721 Aven Nelson Elias Nelson 1899 7 8 189 U.S.A. Wyoming Park Yellowstone National Park: Yancey's. -110.4303 44.9369 2 1890 In open ground. Phenology: flowering. RM RM 20783 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5721 Aven Nelson Elias Nelson 1899 7 8 189 U.S.A. Wyoming Park Yellowstone National Park: Yancey's. -110.4303 44.9369 2 1890 In open ground. Phenology: flowering. RM RM 362288 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1311 Betsy E. Neely Alan Carpenter 1983 6 26 177 U.S.A. Wyoming Lincoln Ca 2.5 air mi NW of Kemmerer, SW of Hams Fork. -110.5896 41.8371 1 2195 Hardpacked clay soils with Artemisia arbuscula. Phenology: flowering & fruiting. RM RM 204606 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 44 Charles L. Turner 1946 6 6 157 U.S.A. Wyoming Campbell 20 mi N of Gillette. -105.581 44.5554 9 1250 Sandy clay loam hills, open cedar type. Phenology: flowering & fruiting. RM RM 304888 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1282 Donald E. Brink L. M. Mayer 1977 5 27 147 U.S.A. Wyoming Sheridan Hidden Water Coal Site. -107.0404 44.9612 1 1189 1280 Sagebrush-grassland. Phenology: flowering. RM RM 301572 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 13c Darold W. Sabinske 1970 7 4 185 U.S.A. Wyoming Teton Grand Teton National Park: near Moose. -110.6554 43.6914 1 2012 Big sagebrush area. Phenology: flowering & fruiting. RM RM 103898 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4341 Edwin B. Payson Lois B. Payson 1925 7 10 191 U.S.A. Wyoming Sublette Near Cora. -110.0001 42.989 1 2317 Open places. Phenology: flowering & fruiting. RM RM 334641 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2013 Erwin F. Evert 1980 7 5 187 U.S.A. Wyoming Park Absaroka Mountains: ca 1/4 mi S of North Fork Shoshone River along Fishhawk Creek Trail. -109.84917 44.44972 1 1951 Growing in open along trail with Stipa comata, Myosotis arvensis, and Alyssum alyssoides. Phenology: flowering & fruiting. RM RM 611730 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 25387 Erwin F. Evert 1993 6 27 178 U.S.A. Wyoming Hot Springs Southeastern Absarokas: foothills and ridge ca 0.5 mi W of Enos Creek, ca 20 mi SSW of Meeteetse. -108.8225 43.9246 2012 Sagebrush-grassland with Festuca idahoensis, Leucopoa kingii, Antennaria rosea, Cerastium arvense, and with a few scattered Pinus flexilis and Juniperus scopulorum. Phenology: flowering & fruiting. RM RM 609252 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6698 Erwin F. Evert 1984 6 27 179 U.S.A. Wyoming Park North Fork Shoshone River Drainage: Absaroka Mountains: ridge along south side of North Fork Shoshone River, between Fishhawk and Mesa creeks, ca 40 mi W of Cody. -109.8083 44.4497 1981 2073 Open Douglas fir forest. Phenology: flowering & fruiting. RM RM 622572 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8215 Erwin F. Evert 1985 7 9 190 U.S.A. Wyoming Sheridan Big Horn Mountains: ridge W of Story Fish Hatchery buildings and ponds. -106.9175 44.5701 1 1646 1722 On steep, east-facing slope in open Pinus ponderosa forest and in forest openings; calcareous, clayey soil. Phenology: flowering & fruiting. RM RM 311040 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 727 George R. Hoffman 1974 6 23 174 U.S.A. Wyoming Johnson 6.3 mi W of Buffalo on U.S. Hwy 16, 0.2 mi from turnoff along gravel road. -106.81139 44.33139 1 1731 Along gravel road; Pinus ponderosa, Spiraea betulifolia habitat type. Phenology: flowering. RM RM 264603 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 239 Herbert G. Fisser 1960 7 14 196 U.S.A. Wyoming Fremont SE of Thermopolis and E of Wind River Canyon: North Flank of the Owl Creek Range: Birdseye Pass area. -108.0824 43.4492 1 2134 Phenology: flowering & fruiting. RM RM 264410 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 472 Herbert G. Fisser 1961 6 16 167 U.S.A. Wyoming Hot Springs North flank of Owl Creek Range: E of Wind River Canyon: Devils Slide, SE of Thermopolis. -108.12583 43.565 5 1859 Three-tip sagebrush grassland. Phenology: flowering & fruiting. RM USFS 636194 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 262 John F. Thilenius 1976 6 23 175 U.S.A. Wyoming Campbell Thunder Basin National Grassland: Rochelle Hills. -105.111 43.5999 1 1524 1554 Phenology: flowering. RM RM 297871 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 140 Orval C. Harrison 1975 6 21 172 U.S.A. Wyoming Lincoln Star Valley-Greys River in the Afton Area: along Strawberry Creek, 0.9 mi E of U.S. Hwy 89. -110.9825 42.8863 1 1841 Growing in gravelly soil along fence rows with Phlox, Comandra, Microseris nutans, and Agoseris glauca. Phenology: flowering. RM RM 197373 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 128 Robert E. Pfadt 1944 5 30 151 U.S.A. Wyoming Sheridan Sheridan. -106.958 44.8051 3 1143 Phenology: flowering. RM RM 391683 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 834 Robert J. Hill 1973 7 10 191 U.S.A. Wyoming Sublette Great Divide Basin and adjacent regions: Pinedale Glacial Fields; E of Fremont Lake. -109.77028 42.94611 2 2256 Frequent with Artemisia tridentata. Phenology: flowering & fruiting. RM RM 545712 Arnica sororia physical specimen Asteraceae Arnica sororia Greene WY-804 Randall J. Bayer Glenn Bilodeau, Daniel Lebedyk 1988 7 1 183 U.S.A. Wyoming Big Horn Bighorn National Forest: U.S. Hwy 14A between Lovell and Burgess Junction just N of Medicine Mountain, 7 km W of Sheridan County. -107.883333 44.783333 2652 Roadside slope with Artemisia tridentata and Abies lasiocarpa. Phenology: flowering & fruiting. RM RM 293282 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 21 Richard F. Harner 1974 6 8 159 U.S.A. Wyoming Campbell N of Gillette. -105.4392 44.4344 6 1387 Phenology: flowering & fruiting. RM RM 315624 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 316 Robert W. Lichvar 1977 6 11 162 U.S.A. Wyoming Teton Gros Ventre Mountains: Sheep Creek. -110.6355 43.5186 1 2134 Growing with Senecio sp. and Ribes sp.; common in open areas. Phenology: flowering & fruiting. RM RM 77959 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 128 Seymour S. Sharp 1912 6 17 169 U.S.A. Wyoming Sheridan Hills E of Sheridan. 1173 Grassy slope. Phenology: flowering & fruiting. RM RM 737270 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8670 Thomas W. Nelson Jane P. Nelson 1987 7 20 201 U.S.A. Wyoming Natrona On Muddy Mountain. 2286 Open pine woodland. Phenology: flowering & fruiting. RM RM 580187 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 12612 Walter Fertig Phil Shephard and Ann Humphrey 1992 5 30 151 U.S.A. Wyoming Washakie West Slope Big Horn Mountains: TNC Ten Sleep Preserve, Cooks Vee adjacent to Murphy Road on south rim of Canyon Creek Canyon; ca 2 air mi W of Choate Corral. -107.26 43.9966 1 1841 Open canopy, flat, exposed limestone bedrock outcrops with shallow depressions of thin soil. Phenology: flowering. RM RM 579369 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 12908 Walter Fertig 1992 7 6 188 U.S.A. Wyoming Hot Springs Foothills of the Absaroka and Owl Creek Mountains: Hill 6613 on northwest bank of Enos Creek, ca 35 air mi NW of Thermopolis. -108.7806 43.9542 1 1859 1957 Grassy, moist drainage in sagebrush thicket at base of cliffs. Phenology: flowering & fruiting. RM RM 602521 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 14787 Walter Fertig 1994 6 6 157 U.S.A. Wyoming Washakie West Slope Big Horn Range: TNC Tensleep Preserve: Cooks Canyon, ca 8 air mi E of Ten Sleep. -107.2198 43.9822 1 1859 1890 Mesic draw on deep, sandy soil in semi-open ponderosa pine-Rocky Mountain juniper grove. Phenology: flowering. RM RM 825595 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 741 David Scott Geneva Chong 2006 6 19 170 U.S.A. Wyoming Teton Grand Teton National Park and Vicinity: Jackson Hole: near Gros Ventre Junction, ca 4 air mi S of Moose; ca 9 air mi NNE of Jackson. -110.7009 43.5984 2000 Area burned in 2003 wildfire. Phenology: flowering & fruiting. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3118 Neil Snow 1988 7 4 186 U.S.A. Wyoming Park Southwestern Absarokas: Yellowstone National Park: area between Thorofare Creek and Escarpment Creek, vicinity of Throrfare Ranger Station. -110.0825 44.1557 2454 Dry, rocky meadow. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3167 Neil Snow 1988 7 5 187 U.S.A. Wyoming Park Southwestern Absarokas: Teton Wilderness: along Thorofare Creek Trail to Coyote Creek, ca 1 mi SE of the southeast corner of Yellowstone National Park. -110.0825 44.1557 2454 2500 Lodgepole pine forests and dry, rocky meadows. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 41557 Ronald L. Hartman 1993 7 22 203 U.S.A. Wyoming Lincoln Southern Salt River Range and Vicinity: Commissary Ridge, ca 14 air mi N of Kemmerer. -110.561944 41.999722 2256 2408 Flats along stream, old homestead in aspen grove, and slope with sandstone outcrops. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 22121 B. E. Nelson Michelle Nelson 1992 5 31 152 U.S.A. Idaho Clark Targhee National Forest: Western Centennial Mountains: along Middle Threemile Creek, ca 1.5 air mi W of Opal Mountain; ca 15 air mi NNE of Dubois. -112.126 44.3825 1 1890 Sagebrush-grassland. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1378 Stuart Markow B. E. Nelson and Michelle Nelson 1991 6 26 177 U.S.A. Idaho Bonneville Targhee National Forest: Snake River Range: Palisades Creek, just E of entrance to National Forest, ca 2 air mi NE of Irwin. -111.2207 43.4008 1 1707 1951 Open slope, dominated by forbs and shrubs, mostly Purshia and bunchgrasses. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1606 Stuart Markow 1991 6 28 179 U.S.A. Idaho Bonneville Targhee National Forest: West Slope Snake River Range: Rainey Creek from entrance to National Forest to Corral Canyon, ca 3 air mi E of Swan Valley. -111.2406 43.4735 1 1646 1768 Juniper/grassland, dominated by Juniperus scopulorum and bunchgrass, some riparian. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 556 Stuart Markow 1991 6 14 165 U.S.A. Idaho Bonneville Targhee National Forest: West Slope Big Hole Mountains: Black Canyon, ca 9 air mi from Kelly Canyon Ski Area, adjacent to and N of Snake River. -111.4192 43.5894 1 1646 1951 Riparian and adjacent open area. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6922 Stuart Markow 1992 6 5 157 U.S.A. Idaho Clark Targhee National Forest: North Slope Western Centennial Mountains: ridge above Pleasant Valley Creek, between White Pine Canyon and Kite Canyon; ca 7 air mi NW of Spencer. -112.291 44.4246 1 2103 2195 Mostly Balsamorhiza, grasses, Artemisia, and scattered Pseudotsuga. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8035 Stuart Markow 1992 6 22 174 U.S.A. Idaho Clark Targhee National Forest: Western Centennial Mountains: just above Modoc Creek, 1/4 mi S of forest boundary, ca 23 air mi NW of Dubois. -112.3514 44.4963 1 2195 2256 Canyon and low ridges with mostly forbs and grasses, scattered Artemisia and Chrysothamnus. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8048 Stuart Markow 1992 6 22 174 U.S.A. Idaho Clark Targhee National Forest: Western Centennial Mountains: along Modoc Creek, 2 air mi S of National Forest boundary, ca 22 air mi NW of Dubois. -112.3514 44.482 1 2256 2286 Canyon with mostly Artemisia, many forbs and grasses. RM RM 742732 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 25809 N. Duane Atwood 2000 6 20 172 U.S.A. Arizona Apache Chuska Mountains: 1 mi E of Roof Butte. 2621 Ephemeral pond and adjacent Ponderosa community. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1063 Jean Wood 1995 6 9 160 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: White Mountain, ca 8 air mi W of Danville along Forest Road 2113 to Forest Road 800. -118.6903 48.9792 1402 1676 Southwest facing steppe slopes with scattered Douglas fir and pinegrass; somewhat disturbed by cows with localized weed infestations. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1104 Jean Wood 1995 6 9 160 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: White Mountain, ca 8 air mi W of Danville along Forest Road 2113 to Forest Road 800. -118.6903 48.9792 1402 1676 Southwest facing steppe slopes with scattered Douglas fir and pinegrass; somewhat disturbed by cows with localized weed infestations. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1119 Jean Wood 1995 6 9 160 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: White Mountain, ca 8 air mi W of Danville along Forest Road 2113 to Forest Road 800. -118.6903 48.9792 1402 1676 Southwest facing steppe slopes with scattered Douglas fir and pinegrass; somewhat disturbed by cows with localized weed infestations. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1211 Jean Wood 1995 6 9 160 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: Lone Ranch Creek areaon west side of Kettle Crest, ca 3 air mi ESE of Danville; along Forest Road 9576 to Forest Road 400. -118.4275 48.9506 1341 1463 Steep steppe; edges of Douglas fir/pinegrass. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1394 Jean Wood 1995 6 27 178 U.S.A. Washington Stevens Western Colville National Forest and Vicinity: Mill Creek Drainage: along Middle Fork of Mill Creek and Bon Ayre Valley on Forest Road 4668, ca 10 air mi NE of Colville. -117.7248 48.6485 884 1006 Old homestead meadows, heavily grazed; creekside and edges of lodgepole pine and cedar/spruce. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1590 Jean Wood 1995 6 29 180 U.S.A. Washington Stevens Western Colville National Forest and Vicinity: Dry Creek Ridge, ca 8 air mi W of Chewelah, SW of Dry Creek Road. -117.833 48.2866 701 884 Mixed Douglas fir forest with rocky ridge and outcrops; small lake, some parts heavily logged; some open field with wet areas. Phenology: flowering & fruiting. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2652 Jean Wood 1995 7 25 206 U.S.A. Washington Stevens Western Colville National Forest and Vicinity: Little Pend Oreille Wildlife Refuge: ca 11 air mi SE of Colville at McDowell Lake overlook. -117.6599 48.4748 731 762 Partially open slopes with numerous rock outcrops; large ponderosa pine and Douglas fir; massive weed infestation in open areas. Phenology: fruiting. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3215 Jean Wood 1995 8 10 222 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: Kettle Crest Trail and Old Stage Road, ca 6 air mi N of Sherman Pass; from trailhead on Albion Hill Road. -118.4713 48.7359 1646 1977 South aspect sagebrush balds with scattered large Douglas fir; subalpine fir/lodgepole pine forest with large 1 year-old burn areas. Phenology: flowering & fruiting. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4805 Jean Wood Linda Swartz 1996 6 8 160 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: Gibraltar Mountain, ca 1 air mi SE of Republic. -118.684 48.6196 975 1158 Creek and lakeside through mixed forest to open basaltic balds and ridge tops. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4983 Jean Wood 1996 6 23 175 U.S.A. Washington Stevens Western Colville National Forest and Vicinity: Little Pend Oreille Wildlife Refuge, ca 6 air mi SE of Colville; access from Buffalo-Wilson Road. -117.7681 48.4603 701 762 Rolling terrain with ponderosa pine and smaller encroaching Douglas fir. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5185 Jean Wood 1996 6 27 179 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: Little Vulcan Mountain, ca 3.5 air mi W of Curlew. -118.6684 48.9935 1036 1274 South facing slopes and ravines; scattered forest interspersed with steppe and rock outcrops. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5444 Jean Wood 1996 6 30 182 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: west of the Kettle River, ca 2.5 air mi SW of Danville. -118.537 48.9649 762 975 West and south facing slopes with rock outcrops and scattered ponderosa pines. Open areas heavily infested with knapweed, cheatgrass, and goatweed. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5571 Jean Wood 1996 6 30 182 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: White Creek above Kettle River, ca 2.5 air mi NE of Curlew. -118.5589 48.9219 670 792 Open south and west facing slopes. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6463 Jean Wood 1996 7 25 207 U.S.A. Washington Ferry Western Colville National Forest and Vicinity: Lambert Creek, ca 9 air mi NE of Republic. -118.537 48.7215 1158 1432 1994 burn. Phenology: flowering. RM RM 1010271 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 32860 Ronald L. Hartman Bruce Embury 1992 6 21 173 U.S.A. Wyoming Lincoln Wyoming/Salt River Ranges: Gannett Hills: Spring Creek E to ridge; ca 10 air mi SSW of Afton. -111.0239 42.6136 2024 2399 Sagebrush/grassy slopes with scattered Douglas fir, aspen, chokecherry, rabbitbrush, coralberry, and antelope bitterbrush. Phenology: flowering. RM RM 1015024 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 41557 Ronald L. Hartman 1993 7 22 203 U.S.A. Wyoming Lincoln Wyoming/Salt River Ranges: Salt River Range: Commissary Ridge, ca 14 air mi N of Kemmerer. -110.5919 41.9875 2256 2408 Flats along stream, old homestead in aspen grove, and slope with sandstone outcrops. Phenology: flowering. RM RM 1015023 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 41985 Ronald L. Hartman 1993 7 25 206 U.S.A. Wyoming Lincoln Wyoming/Salt River Ranges: Salt River Range: Little Fall Creek, ca 26 air mi SW of Big Piney. -110.5506 42.3275 2432 2500 Grassy slopes with stream bottom and forest margins. Phenology: flowering. RM RM 1015022 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 43036 Ronald L. Hartman 1993 7 31 212 U.S.A. Wyoming Lincoln Wyoming/Salt River Ranges: Salt River Range: Fontenelle Creek to Commissary Ridge, S of Fontenelle Mountain. -110.6494 42.3992 2728 3033 Coniferous forest, grassy slopes, and talus. Phenology: flowering. RM RM 931893 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 10067 B. E. Nelson 1983 6 27 178 U.S.A. Wyoming Hot Springs Bighorn Basin: along Left Hand Creek, ca 3 air mi SW of Dickie (LU Ranch); ca 38 air mi NW of Thermopolis. -108.7994 43.9839 1 1829 Open limber pine-Douglas fir slopes. RM RM 931892 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 15363 B. E. Nelson Erik Nelson 1988 6 5 157 U.S.A. Wyoming Big Horn Bighorn Basin: Fenton Pass and vicinity and Tatman Mountain, ca 12.5 air mi SW of Burlington, ca 26.5 air mi WSW of Basin. -108.5633 44.2917 1859 Sagebrush draw. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 20888 B. E. Nelson Robin Jones 1991 6 8 159 U.S.A. Wyoming Hot Springs Bighorn Basin: above Red Canyon across from Minnesela Slope, ca 4.5 air mi SW of Thermopolis. -108.2855 43.6081 1 1646 1676 Sagebrush-grassland slopes. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 21729 B. E. Nelson 1991 7 26 207 U.S.A. Wyoming Fremont Owl Creek/Bridger Mountains: Bridger Mountains: ridge and drainage leading from East Fork Dry Creek to Greer Peak on Copper Mountain, ca 12.3 air mi NW of Lysite, ca 39 air mi NE of Riverton. -107.8433 43.4219 2 2103 2134 Moist areas around seep, springs, and along drainage. RM RM 347779 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5414 B. E. Nelson 1980 6 11 163 U.S.A. Wyoming Big Horn Big Horn Mountains: below northeast side of Little Mountain near Godes Spring, ca 1 air mi S of Devil Canyon, ca 16 air mi NE of Lovell. -108.09778 44.9353 1 1829 Stony grassy slopes. Phenology: flowering & fruiting. RM RM 931895 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7987 B. E. Nelson 1981 6 11 162 U.S.A. Wyoming Washakie Bighorn Basin: Big Cedar Ridge, ca 14 air mi SSW of Ten Sleep on Blue Bank Road. -107.52972 43.83722 1 1463 Grassy sagebrush flats and draws. RM RM 931894 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 9732 B. E. Nelson Ronald L. Hartman 1983 6 21 172 U.S.A. Wyoming Park Bighorn Basin: along Spring Creek, ca 2 air mi W of Meeteetse. -108.90472 44.16083 1 1798 RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 70768 Ronald L. Hartman Heather Bradtke 2001 6 6 157 U.S.A. Oregon Grant Umatilla National Forest and Vicinity: Case Ridge on Forest Road 3972.060, ca 2 air mi SE of Dale. -118.930667 44.95375 1091 1213 Ponderosa pine and Douglas fir, logged, roadside, stream, slope, and crest. Phenology: flowering & fruiting. RM RM 930295 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 11281 Keith H. Dueholm Ronald L. Hartman 1981 5 28 148 U.S.A. Wyoming Hot Springs Owl Creek/Bridger Mountains: Bridger Mountains: Blue Hill; ca 16 air mi SE of Thermopolis. -107.9072 43.5656 4 1402 1524 Loose, shaley slopes of hill, rocky plains on summit, mud around holding pond in drainage below, sagebrush on lower slopes of hill; above holding pond. RM RM 324416 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1818 Keith H. Dueholm Ronald L. Hartman 1978 6 4 155 U.S.A. Wyoming Campbell [location and coordinates withheld] 1250 Grazed sagebrush plains, rocky slopes, railroad right-of-way; railroad right-of-way, plains. Phenology: flowering & fruiting. RM RM 324408 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1997 Keith H. Dueholm Ronald L. Hartman 1978 6 7 158 U.S.A. Wyoming Campbell Powder River Basin: White Tail Butte. -105.54222 44.80444 2 1219 Sandy slopes, sagebrush plains, draws, and roadside ditch; plains. Phenology: flowering & fruiting. RM RM 324414 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2432 Keith H. Dueholm Ronald L. Hartman and Mary Alice Sanguinetti. 1978 6 21 172 U.S.A. Wyoming Campbell [location and coordinates withheld] 1189 Small pond, along roadway, adjacent outwash from plains, and eroded plains; plains. Phenology: flowering & fruiting. RM RM 324411 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2601 Keith H. Dueholm Ronald L. Hartman and Mary Alice Sanguinetti. 1978 6 23 174 U.S.A. Wyoming Campbell [location and coordinates withheld] 1158 Ponderosa pine slopes, eroded plains; plains. Phenology: flowering & fruiting. RM RM 324415 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4563 Keith H. Dueholm 1978 7 22 203 U.S.A. Wyoming Campbell [location and coordinates withheld] 1432 Ponderosa pine covered buttes, steep shale and talus slopes, sagebrush plains at summit, ravines; pine slopes. Phenology: fruiting. RM RM 333362 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6608 Keith H. Dueholm 1979 6 5 156 U.S.A. Wyoming Johnson [location and coordinates withheld] 1707 Pine covered uplift, gravelly slopes in open pine forest. Phenology: flowering & fruiting. RM RM 334003 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6703 Keith H. Dueholm 1979 6 7 158 U.S.A. Wyoming Sheridan Powder River Basin: hills above S R Creek, ca 8 air mi E of Wyarno. -106.5967 44.7989 2 1341 Rocky slopes, scoria, sagebrush plains, mesic ravine; crest of slope, among sagebrush. Phenology: flowering & fruiting. RM RM 334118 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6741 Keith H. Dueholm 1979 6 9 160 U.S.A. Wyoming Sheridan Powder River Basin: ca 8 air mi N of Leiter. -106.2536 44.8278 1 1189 Rolling sagebrush plain, shallow draws; plains. Phenology: flowering & fruiting. RM RM 333333 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6785 Keith H. Dueholm 1979 6 9 160 U.S.A. Wyoming Sheridan [location and coordinates withheld] 1219 Deep ravine, with ponderosa pine on slopes, and open, clay slopes, sandstone outcrops; outcrops. Phenology: flowering. RM RM 333361 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6845 Keith H. Dueholm 1979 6 9 160 U.S.A. Wyoming Sheridan [location and coordinates withheld] 1402 Deep, mesic ravine in high hills, slopes with granite boulders, plum thickets; slopes. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5137 Heather Bradtke 2002 6 1 152 U.S.A. Oregon Umatilla Umatilla National Forest and Vicinity: Horseshoe Ridge, ca 5 mi NE of Meacham. -118.329611 45.524444 1219 1371 Dry forest edge with fine, deep soil; slope 0-10; aspect ridgetop and easterly. Phenology: flowering. RM RM 555677 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3556 Robert S. Kirkpatrick 1984 7 5 187 U.S.A. Wyoming Park Absaroka Mountains: ca 18 air mi WSW of Meeteetse, West Fork Timber Creek, ca 1 mi W of the Timber Creek Ranger Station. -109.2035 44.0428 2286 2408 Meadows with scattered Potentilla fruticosa; dry areas. Phenology: flowering & fruiting. RM RM 555678 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3561b Robert S. Kirkpatrick 1984 7 5 187 U.S.A. Wyoming Park Absaroka Mountains: ca 18 air mi WSW of Meeteetse, West Fork Timber Creek, ca 1 mi W of the Timber Creek Ranger Station. -109.2035 44.0428 2286 2408 Meadows with scattered Potentilla fruticosa; dry areas. Phenology: flowering & fruiting. RM RM 555679 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4776 Robert S. Kirkpatrick 1984 7 24 206 U.S.A. Wyoming Hot Springs Absaroka Mountains: ca 21 air mi SSW of Meeteetse, 3 mi NW of Cottonwood Peak, in the vicinity of and SE of Twin Lakes. -109.023 43.8507 2560 2804 Picea engelmannii and Abies lasiocarpa forest; dry areas. Phenology: flowering. RM RM 555680 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6043 Robert S. Kirkpatrick 1984 8 25 238 U.S.A. Wyoming Park Absaroka Mountains: ca 17 air mi SSE of Cody, upper end of Carter Creek ca 1 mi SE of Hidden Lake. -109.2042 44.3198 2 2500 2682 Pinus flexilis and Picea engelmannii forest; dry slopes. Phenology: fruiting. RM RM 531162 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 13248 Ronald L. Hartman Keith H. Dueholm 1981 6 28 179 U.S.A. Wyoming Fremont Southwest flank of Copper Mountain, ca 14 air mi NNE of Shoshoni. -108.0422 43.4358 1 2408 South exposure; along road and rocky slopes; precambrian rocks. Phenology: flowering & fruiting. RM RM 555681 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 15401 Ronald L. Hartman Robert S. Kirkpatrick 1983 6 19 170 U.S.A. Wyoming Park Absaroka Mountains: Bull Creek, ca 2 air mi SE of the South Fork Shoshone River. -109.30639 44.34917 1 1981 Sagebrush-rabbit brush grassland and adjacent creek bottoms. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6844 Heather Bradtke 2002 6 26 177 U.S.A. Oregon Grant Umatilla National Forest and Vicinity: Forest roads 3990 and 40, ca 12 mi S and 3 mi E of Dale. -118.8625 44.835278 1280 1402 Open area in pumic rock and tan soil; slope:10; aspect: southwest. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 29288 Ronald L. Hartman 1991 6 27 178 U.S.A. Wyoming Fremont Owl Creek/Bridger Mountains: Bridger Mountains: southwest end of Lysite Mountain, ca 11 air mi N of Lost Cabin. -107.6433 43.4502 1920 2134 Slopes with outcrops of limestone and sandstone and drainage. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 29401 Ronald L. Hartman 1991 6 28 179 U.S.A. Wyoming Hot Springs Owl Creek/Bridger Mountains: Bridger Mountains: Red Canyon, Buffalo Creek Road, ca 14 air mi ENE of Thermopolis. -107.9469 43.5797 1676 1707 Red beds; grassy slopes and outcrops. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 29510 Ronald L. Hartman 1991 6 28 179 U.S.A. Wyoming Hot Springs Owl Creek/Bridger Mountains: Bridger Mountains: Blue Hill, Buffalo Creek Road, ca 16 air mi ESE of Thermopolis. -107.9072 43.5656 1737 1829 Shales with barren slopes, sagebrush-grassland on top. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 29571 Ronald L. Hartman 1991 6 28 179 U.S.A. Wyoming Fremont Owl Creek/Bridger Mountains: Bridger Mountains: Dry Bridge Road, ca 16 air mi NW of Lysite, South Bridger Creek. -107.8233 43.4644 1890 Stock pond and adjacent sagebrush slopes. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 29655 Ronald L. Hartman 1991 6 30 181 U.S.A. Wyoming Fremont Owl Creek/Bridger Mountains: Bridger Mountains: just S of Birdseye Pass. -108.0828 43.45 2073 Spring and surrounding sagebrush area. RM RM 324417 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6069 Ronald L. Hartman Keith Dueholm 1978 6 5 156 U.S.A. Wyoming Campbell Powder River Basin: ca 5 air miles NNE of Spotted Horse. -105.80694 44.7742 2 1280 Dissected benchland with ponderosa pine covered and open slopes; open slope. Phenology: flowering & fruiting. RM RM 324409 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6275 Ronald L. Hartman Keith Dueholm 1978 6 7 158 U.S.A. Wyoming Campbell Powder River Basin: ca 1 air mi S of Montana and 6.5 air mi W of Wyo Hwy 59. -105.50278 44.9878 1 1128 Dissected slopes near road. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7193 Heather Bradtke 2002 7 1 182 U.S.A. Washington Garfield Umatilla National Forest and Vicinity: Cape Horn Ridge, ca 8 mi S and 15 mi W of Anatone. -117.442222 46.256389 1167 1359 Grass steppe in shallow, copper, platey soil; slope: 10; aspect southwest. Phenology: flowering & fruiting. RM RM 324410 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6984 Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti 1978 6 22 173 U.S.A. Wyoming Campbell Powder River Basin: ca 12 air mi NE of Weston. -105.17694 44.76417 1 1189 Ponderosa topped hills and flats below. Phenology: flowering & fruiting. RM RM 324407 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7039 Ronald L. Hartman Keith Dueholm and Mary Alice Sanguinetti 1978 6 23 174 U.S.A. Wyoming Campbell Powder River Basin: ca 18 air mi WNW of Rockypoint. -105.464 44.9603 2 1158 Eroded hills with ponderosa pine. Phenology: flowering & fruiting. RM RM 324412 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7257 Ronald L. Hartman Mary Alice Sanguinetti 1978 6 25 176 U.S.A. Wyoming Campbell Powder River Basin: ca 9 air mi SW of Gillette. -105.6408 44.20944 1 1402 Low hills with drainage and large shallow pond on flat. Phenology: flowering & fruiting. RM RM 324413 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7599 Ronald L. Hartman Mary Alice Sanguinetti 1978 6 28 179 U.S.A. Wyoming Campbell Powder River Basin: Pumpkin Buttes: North Middle Butte. -105.8944 43.7431 2 1829 Top and upper slopes of butte. Phenology: flowering & fruiting. RM RM 347781 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 9219 Ronald L. Hartman Bob Plouffe and Ann Odasz 1979 6 21 172 U.S.A. Wyoming Big Horn Big Horn Mountains: ca 9 air mi W of Tyrrell Ranger Station. -107.42306 44.20444 1 1798 Sagebrush flats and eroded slopes. Phenology: flowering & fruiting. RM RM 347780 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 9329 Ronald L. Hartman Ann Odasz 1979 6 25 176 U.S.A. Wyoming Sheridan Big Horn Mountains: Little Bighorn River Canyon, ca 17 air mi W of Parkman. -107.6736 44.9758 1 1646 1829 Grassy slopes and limestone outcrops. Phenology: flowering & fruiting. RM RM 591638 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2516 Walter Fertig 1990 6 25 176 U.S.A. Wyoming Sublette West Slope Wind River Range: Half Moon Lake, ca 8 air mi NE of Pinedale. -109.7506 42.9314 2347 2408 Douglas fir/aspen woods. Phenology: flowering & fruiting. RM RM 591637 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2641 Walter Fertig 1990 7 2 183 U.S.A. Wyoming Sublette West Slope Wind River Range: west face of White Rock, adjacent to upper Green River Lake, ca 28 air mi N of Pinedale. -109.8192 43.2708 1 2469 Open limestone/shale talus slope at base of mountain. Phenology: flowering & fruiting. RM RM 591636 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3067 Walter Fertig 1990 7 6 187 U.S.A. Wyoming Teton West Slope Wind River Range: adjacent to Forest Road 30410 and Cottonwood Creek, ca 26 air mi E of Jackson. -110.2203 43.5731 2317 Sagebrush flat. Phenology: flowering & fruiting. RM RM 586834 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8118 Walter Fertig 1991 6 18 169 U.S.A. Wyoming Sublette West Slope Wind River Range: Pole Creek drainage and adjacent ridges, between Fayette Lake and Half Moon Lake, ca 9 air mi NE of Pinedale. -109.6911 42.9456 3 2317 2743 Granitic outcrop adjacent to Pole Creek where it enters Half Moon Lake. Phenology: flowering. RM RM 586832 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8203 Walter Fertig 1991 6 25 176 U.S.A. Wyoming Sublette West Slope Wind River Range: ridge 0.5 mi SW of Blueberry Lake, 0.5 mi E of Boulder Lake, ca 12.5 air mi E of Pinedale. -109.6117 42.8731 2365 2560 Ledges and crevices of open granite rock outcrop. Phenology: flowering & fruiting. RM RM 586833 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8665 Walter Fertig 1991 7 1 182 U.S.A. Wyoming Sublette West Slope Wind River Range: Scab Creek drainage, ca 17 air mi E of Pinedale. -109.5536 42.8153 3 2439 2621 Open canopy, dry ledges and crevices of granitic outcrop above creek. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 9371 Heather Bradtke 2002 7 25 206 U.S.A. Washington Asotin Umatilla National Forest and Vicinity: Round Prairie on Smoothing Iron Ridge, ca 3 mi N and 12 W of Anatone. -117.410556 46.176667 1463 1524 Prairie, sagebrush and grass dominant in brown, powdery to rocky soil. Phenology: fruiting. RM RM 599571 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 40291 Ronald L. Hartman T. W. Nelson 1993 7 6 187 U.S.A. Wyoming Natrona Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 1.2 air mi NNW of Waltman. -107.2133 43.0908 1899 Sandy draw and slopes. Phenology: flowering & fruiting. RM RM 632627 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 48543 Ronald L. Hartman 1994 7 29 210 U.S.A. Wyoming Fremont Green River Basin: Sweetwater Guard Station (foundation remaining) and Campground. -109.0606 42.5572 1 2500 2530 Meadow, streamside, and edge of lodgepole pine forest. Phenology: flowering. RM RM 632626 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1547 Thomas Cramer Jane T. Kellett 1994 7 3 184 U.S.A. Wyoming Sublette Green River Basin: New Fork River, ca 4.5 air mi S of Boulder. -109.7411 42.685 2118 Riverside meadows and cottonwood/willows with adjacent sagebrush. Phenology: flowering. RM RM 632625 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1814 Thomas Cramer Jane T. Kellett 1994 7 7 188 U.S.A. Wyoming Fremont Green River Basin: hill W of West Pacific Creek, ca 14 air mi SW of South Pass City. -108.9728 42.3431 2195 2314 Sagebrush hillside, windswept tops, and badlands. Phenology: flowering & fruiting. RM RM 642579 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1928 Thomas Cramer Jane T. Kellett 1994 7 11 192 U.S.A. Wyoming Sublette Green River Basin: East Fork River, ca 6 air mi E of Boulder. -109.6081 42.7422 1 2134 Riverside meadows, willows, and mudflats. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2017b Thomas Cramer Jane T. Kellett 1994 7 11 192 U.S.A. Wyoming Sublette Green River Basin: ca 1 air mi NE of Big Sandy. -109.4508 42.6544 1 2280 2317 Dry creekbed with adjacent meadows, willow stands, and sagebrush hillsides. Phenology: flowering & fruiting. RM RM 632624 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2293 Thomas Cramer 1994 7 23 204 U.S.A. Wyoming Sublette Green River Basin: Marsh Creek, ca 12 air mi N of Cora. -110.0267 43.1036 2347 2378 Creekside meadows and nearby sagebrush. Phenology: flowering. RM RM 632623 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2932 Thomas Cramer 1994 8 6 218 U.S.A. Wyoming Sublette Green River Basin: ca 4.5 air mi NW of Big Sandy. -109.5092 42.6839 2185 Roadside ditches between irrigated fields. Phenology: flowering & fruiting. RM RM 632622 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3100 Thomas Cramer 1994 8 6 218 U.S.A. Wyoming Sublette Green River Basin: Blucher Creek just S of Bridger-Teton National Forest, ca 12 air mi E of Buckskin Crossing. -109.1386 42.5564 1 2530 2621 Creekside meadows, sagebrush, and lodgepole pine stands. Phenology: flowering. RM RM 632621 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3668 Thomas Cramer 1994 8 12 224 U.S.A. Wyoming Sublette Green River Basin: Horse Creek, ca 4.5 air mi SE of Merna. -110.2819 42.9164 2280 Creekside meadows and willows. Phenology: flowering. RM RM 632620 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4117 Thomas Cramer Ben and Becky Cramer 1994 8 19 231 U.S.A. Wyoming Fremont Green River Basin: Sweetwater River, ca 8.5 air mi SW of South Pass City. -108.9164 42.3842 1 2271 Riverside meadows, willows, and sagebrush. Phenology: flowering & fruiting. RM RM 632619 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4526 Thomas Cramer Ronald L. Hartman 1994 8 23 235 U.S.A. Wyoming Lincoln Green River Basin: Green River, ca 6 air mi S of La Barge. -110.1829 42.1747 1 1984 Riverside meadows and willows. Phenology: flowering. RM RM 668113 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7167b Thomas Cramer 1995 7 5 186 U.S.A. Wyoming Lincoln Green River Basin: south end of Slate Creek Ridge, ca 11.5 air mi NNE of Kemmerer. -110.4544 41.9413 2164 2286 Wet meadow draw with sagebrush sides and shrub islands. Phenology: flowering. RM RM 668112 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7843 Thomas Cramer Jane T. Kellett 1995 7 13 194 U.S.A. Wyoming Sublette Green River Basin: Little Prospect Mountain, ca 11.5 air mi ESE of Big Sandy. -109.2554 42.5559 2439 Sagebrush meadow. Phenology: flowering. RM RM 668111 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8085 Thomas Cramer Jane T. Kellett 1995 7 15 196 U.S.A. Wyoming Sublette [location and coordinates withheld] 2256 2286 Cobblestone hillside with sparse sagebrush. Phenology: flowering. RM RM 668110 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 8669 Thomas Cramer 1995 7 20 201 U.S.A. Wyoming Sublette Green River Basin: ca 10 air mi SW of Daniel. -110.192 42.7744 1 2225 2250 Gravel hillsides with clay spots and sparse sagebrush. Phenology: flowering. RM RM 668109 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 9194 Thomas Cramer Jane T. Kellett 1995 7 23 204 U.S.A. Wyoming Sublette Green River Basin: Water Hole Draw at Big Sandy River, ca 23.5 air mi N of Farson. -109.4509 42.4532 2103 Riverside meadows and willows. Phenology: flowering. RM RM 668108 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 9417 Thomas Cramer Jane T. Kellett 1995 7 25 206 U.S.A. Wyoming Sublette Green River Basin: Irish Canyon at Bridger-Teton National Forest border, ca 5.5 air mi ENE of Big Sandy. -109.3922 42.6733 2378 Creekside meadows and willows. Phenology: flowering. RM RM 7631 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2155 Aven Nelson 1896 7 3 185 U.S.A. Wyoming Crook Sundance. -104.386 44.3986 5 1341 1951 Phenology: flowering & fruiting. RM RM 371244 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1411a Hollis Marriott B. E. Nelson 1982 7 14 195 U.S.A. Wyoming Crook Black Hills: Cement Ridge, southeast end, ca 7.5 air mi NE of Moskee; ca 15 air mi ESE of Sundance. -104.0617 44.35 1 1981 Dry open rocky ridge and upper slopes. Phenology: flowering & fruiting. RM RM 371243 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3159 Hollis Marriott 1983 6 15 166 U.S.A. Wyoming Crook [location and coordinates withheld] 1371 Roadside, Ponderosa pine- Bur oak forest. Phenology: flowering & fruiting. RM RM 371242 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3300 Hollis Marriott 1983 6 21 172 U.S.A. Wyoming Crook Black Hills: Bear Lodge Mountains: Lytle Creek and Newton Hill, ca 8.5 air mi ESE of Devils Tower. -104.54861 44.55083 1 1402 Ponderosa pine-Bur oak forest with many openings (logged). Phenology: flowering & fruiting. RM RM 371241 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3381 Hollis Marriott 1983 6 23 174 U.S.A. Wyoming Crook Black Hills: tributary to Road Creek off The Bank Land, Graham Ranch, ca 13 air mi W of Sundance. -104.6689 44.42 1 1371 Ponderosa pine-Bur oak forest, north-facing slopes and draws. Phenology: flowering & fruiting. RM RM 371240 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3543 Hollis Marriott 1983 6 24 175 U.S.A. Wyoming Crook [location and coordinates withheld] 1524 Grassland; south, east, and northeast-facing slopes. Phenology: flowering & fruiting. RM RM 371239 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6224 Hollis Marriott 1984 5 22 143 U.S.A. Wyoming Weston Black Hills: between U. S. Highway 16 and Clay Spur, ca 3.5 air mi NW of Osage. -104.4886 44.00972 1 1280 Pinus ponderosa, Juniperus scopulorum on Mowry shale and bentonite. Phenology: flowering. RM RM 371238 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6883 Hollis Marriott 1984 6 19 171 U.S.A. Wyoming Crook Black Hills: Inyan Kara Mountain (east half). -104.3447 44.2164 1 1646 Grassy east facing slope on outer mountain. Phenology: flowering & fruiting. RM RM 371237 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7417 Hollis Marriott 1984 6 27 179 U.S.A. Wyoming Weston [location and coordinates withheld] 1463 Sagebrush-grassland (Artemisia cana). Phenology: flowering & fruiting. RM RM 371236 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7618 Hollis Marriott 1984 7 6 188 U.S.A. Wyoming Crook [location and coordinates withheld] 1310 Grassy draw with bur oak. Phenology: flowering & fruiting. RM RM 371235 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7786 Hollis Marriott 1984 7 9 191 U.S.A. Wyoming Crook [location and coordinates withheld] 1432 Bur oak woods on lower north slope. Phenology: flowering & fruiting. RM RM 371234 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7830 Hollis Marriott 1984 7 9 191 U.S.A. Wyoming Crook [location and coordinates withheld] 1554 Lower north slope, among talus. Phenology: flowering & fruiting. RM RM 371233 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7847 Hollis Marriott 1984 7 11 193 U.S.A. Wyoming Crook [location and coordinates withheld] 1585 Pine forest with chokecherry and snowberry thickets. Phenology: flowering & fruiting. RM USFS 402848 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 62 Louis Knowles 1913 6 1 152 U.S.A. Wyoming Crook Black Hills (Sundance) National Forest. -104.399 44.5943 12 1371 Loam soil. Phenology: flowering & fruiting. RM RM 371232 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 17559 Ronald L. Hartman 1984 7 9 191 U.S.A. Wyoming Crook Black Hills: 9.5 air mi E of Sundance. -104.1833 44.395 1 1402 Ponderosa pine slopes, stream bottom, and meadow; roadside. Phenology: flowering & fruiting. RM RM 371231 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 17857 Ronald L. Hartman 1984 7 11 193 U.S.A. Wyoming Crook Black Hills: Green Mountain, ca 3 air mi E of Sundance. -104.32611 44.4219 2 1463 Plains with outcrops of Chugwater red beds, Pinus ponderosa covered mountain slopes and summit, and moist shaded limestone canyon; partly wooded slopes. Phenology: flowering & fruiting. RM RM 371230 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 18083 Ronald L. Hartman 1984 7 13 195 U.S.A. Wyoming Crook Black Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance. -104.2225 44.30472 2 1615 Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; meadow. Phenology: flowering & fruiting. RM RM 371229 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 29 W. Latady 1984 6 7 159 U.S.A. Wyoming Crook Black Hills: Keyhole Reservoir, McKean Site. -104.8317 44.3589 1 1280 Pine ridge. Phenology: flowering & fruiting. RM RM 568838 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4477 Neil Snow G. K. Brown and T. M. Evans. 1989 6 14 165 U.S.A. Wyoming Crook Black Hills: off of State Hwy 112, 21.2 mi S of Montana, ca 62 air mi NE of Gillette. -104.6231 44.8139 1 1371 Open forest of Pinus ponderosa and Quercus macrocarpa. Phenology: flowering. RM USFS 860905 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 71736 B. E. Nelson Emily Elliott 2007 6 2 153 U.S.A. Wyoming Park Beartooth Mountains: Shoshone National Forest: ridge S of Line Creek, ca 0.3-0.5 mi S of Montana, ca 37 air mi NNW of Cody. -109.2972 44.9997 1844 2012 Slopes of decomposing granite or redbeds with limber pine and Douglas fir. Phenology: flowering. RM USFS 860906 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 13670 Brian Elliott 2007 7 25 206 U.S.A. Wyoming Park Beartooth Mountains: Shoshone National Forest: Sawtooth Mountain, ca 33.5 air mi NW of Cody. -109.4557 44.9041 2963 3323 Mixed conifer forest and granite rock outcrops. Phenology: flowering & fruiting. RM RM 938559 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 789 Emily Elliott Brian Elliott 2007 6 4 155 U.S.A. Montana Carbon Cooney Reservoir along Red Lodge Creeek Road, on south side of reservoir W of dam, ca 18 air mi N of Red Lodge. -109.2037 45.4444 1295 Slopes around reservoir with sandy soils in mixed Artemisia cana and annual weedy forbs/grasses. Phenology: flowering. RM USFS 860874 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 861 Emily Elliott Brian Elliott 2007 6 4 155 U.S.A. Montana Stillwater Beartooth Mountains: along Mont Hwy 420, ca 3/4 mi N of Beehive, ca 31 air mi NW of Red Lodge. -109.718 45.4885 1426 1634 Volcanic tuft (ash substrate) cliffs and surrounding slopes dominated by annual weedy forbs with very few trees, area recently burned. Phenology: flowering & fruiting. RM USFS 867573 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1122 Emily Elliott Brian Elliott 2007 6 8 159 U.S.A. Montana Park Gallatin Mountains: Gallatin National Forest: along Forest Road 978, ca 14 air mi SW of Livingston. -110.7625 45.5186 1780 2060 Steep south-facing open slope dominated by mixed grasses and forbs into outcrop of conglomerates and mixed conifer forest. Phenology: flowering. RM USFS 867574 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1126 Emily Elliott Brian Elliott 2007 6 8 159 U.S.A. Montana Park Gallatin Mountains: Gallatin National Forest: along Forest Road 978, ca 14 air mi SW of Livingston. -110.7625 45.5186 1780 2060 Steep south-facing open slope dominated by mixed grasses and forbs into outcrop of conglomerates and mixed conifer forest. Phenology: flowering. RM USFS 864374 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3475 Emily Elliott Brian Elliott 2007 7 22 203 U.S.A. Montana Carbon Beartooth Mountains: Custer National Forest: W and above West Fork Rock Creek, ca 17.6 air mi WSW of Red Lodge. -109.593 45.1133 2987 3414 Alpine. Phenology: flowering. RM USFS 867579 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3851 Emily Elliott Brian Elliott 2007 7 30 211 U.S.A. Montana Park Absaroka Range: Gallatin National Forest: just SE of Mount Wallace above the head of Grizzly Creek, ca 33.5 air mi SSE of Livingston. -110.4562 45.1855 2878 2975 Alpine cirque dominated by Carex with streams running through it. Phenology: flowering. RM USFS 867578 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3899 Emily Elliott Brian Elliott 2007 7 30 211 U.S.A. Montana Park Absaroka Range: Gallatin National Forest: just SE of Mount Wallace above the head of Grizzly Creek, ca 33.5 air mi SSE of Livingston. -110.4562 45.1855 2878 2975 Alpine cirque dominated by Carex with streams running through it. Phenology: flowering & fruiting. RM RM 938560 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 85622 Ronald L. Hartman 2007 6 15 166 U.S.A. Montana Stillwater Beartooth Mountains: ca 4 air mi SSW of Limestone. -109.9342 45.4303 1875 Open grassy slopes. Phenology: flowering. RM RM 938561 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 85670 Ronald L. Hartman 2007 6 15 166 U.S.A. Montana Stillwater Beartooth Mountains: Beehive Rock and vicinity, 0.5-1 air mi N of Beehive. -109.712 45.498 1490 1714 Limestone outcrops with slopes; area burned in forest fire in 2006; very motley mix of natives and exotics. Phenology: flowering & fruiting. RM USFS 860875 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 38293 B. E. Nelson 1996 6 15 167 U.S.A. Wyoming Park [location and coordinates withheld] 1500 1753 Bottom of a grassy sagebrush draw. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1377 Rick McNeill 2008 7 3 185 U.S.A. Montana Meagher Lewis and Clark National Forest: Little Belt Mountains: Forest Road 268, ca 3/4 air mi W of junction with Forest Road 839. -111.0611 47.0074 2167 Open meadow in a mixed forest, Pseudotsuga menziesii/Picea glauca/Pinus flexilis; on a limestone ridge. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1502 Rick McNeill 2008 7 3 185 U.S.A. Montana Meagher Lewis and Clark National Forest: Little Belt Mountains: South Fork Tenderfoot Road, ca 2 air mi from junction with Forest Road 589. -111.0955 46.9204 1725 Riparian zone and meadow NW of road; southwest aspect, 5-30% slope, limestone bedrock. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1554a Rick McNeill 2008 7 3 185 U.S.A. Montana Meagher Lewis and Clark National Forest: Little Belt Mountains: junction of Forest roads 6503 and 831, ca 7 air mi N of Newland Creek Reservoir. -110.9605 46.737 1952 Open ridge leading to forested peak; Pinus contorta and Pseudotsuga menziesii, limestone outcrops. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1733 Rick McNeill 2008 7 6 188 U.S.A. Montana Fergus Lewis and Clark National Forest: Big Snowy Mountains: Neil Creek Trail head, ca 8 air mi NE of Judith Gap. -109.5586 46.7537 1802 Scattered meadows in Pseudotsuga menziesii forest; south aspect, 5-20% slope. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1818 Rick McNeill 2008 7 7 189 U.S.A. Montana Fergus Lewis and Clark National Forest: Little Snowy Mountains: junction of Forest roads 272 and 273. -109.0602 46.7564 1559 Old clear cut; west aspect, 5% slope; limestone bedrock. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1870 Rick McNeill 2008 7 7 189 U.S.A. Montana Fergus Lewis and Clark National Forest: Little Snowy Mountains: junction of Forest roads 272 and 271. -109.0844 46.7777 1635 Open ridge line; north and south aspect, 0-20% slope; limestone bedrock. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1919 Rick McNeill 2008 7 7 189 U.S.A. Montana Fergus Lewis and Clark National Forest: Little Snowy Mountains: at the end of Forest Road 271. -109.0102 46.7964 1592 Open meadow and forest of Pseudotsuga menziesii; west aspect, 1-5% slope; limestone bedrock. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2020 Rick McNeill Cortnee Arrington-Dwyer and Sandy Mathus 2008 7 9 191 U.S.A. Montana Chouteau Lewis and Clark National Forest: Highwood Mountains: on southeast shoulder of Highwood Baldy, on Forest Road 8830, at first locked gate. -110.6316 47.41353 1773 Open meadow along shonkinite ridge; Pseudotsuga menziesii forest; running southwest and northwest aspect, 0-35% slope. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 87666 Ronald L. Hartman Rick McNeill 2008 6 18 170 U.S.A. Montana Judith Basin Lewis and Clark National Forest: Highwood Mountains: North Fork Little Belt Creek, en route to Highwood Baldy, ca 12 air mi E of Belt. -110.6545 47.4101 1 1448 1650 Coniferous forests and grassy slopes. Phenology: flowering. RM USFS 867577 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4967 Emily Elliott Brian Elliott 2008 6 24 176 U.S.A. Montana Sweet Grass Beartooth Mountains: Gallatin National Forest: Derby Mountain along Forest Road 6676, ca 17.5 air mi SSE of Big Timber. -109.8758 45.5832 2134 In burned area dominated by forbs and rocky ridgetop. Phenology: flowering. RM USFS 867576 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5124 Emily Elliott Brian Elliott 2008 6 26 178 U.S.A. Montana Park Gallatin Range: Gallatin National Forest: along Forest Road 2500 and Big Creek at intersection with Hylite Creek, ca 29 air mi SW of Livingston. -110.8972 45.3109 1676 Shaded riparian area and boggy area along creek. Phenology: flowering. RM USFS 867575 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6997 Emily Elliott Brian Elliott 2008 8 4 217 U.S.A. Montana Park Absaroka Range: Gallatin National Forest: between West Boulder Plateau and Falls Creek, ca 33 air mi SSW of Big Timber. -110.327 45.4283 2378 2865 Picea and Pinus flexilis with Vaccinium understory and scattered open talus slopes. Phenology: flowering. RM USFS 867580 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 87861 Ronald L. Hartman 2008 7 16 198 U.S.A. Montana Park Beartooth Mountains: Gallatin National Forest: Sheep Mountain, ca 3.5 air mi N of Cooke City. -109.928 45.072 3000 3244 Talus, boulder, and meadow covered slope. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 3982 Rick McNeill 2009 6 3 154 U.S.A. Montana Meagher Smith River Wildlife Management Area: ca 3 air mi NNE of Fort Logan. -111.1596 46.7188 1484 Northeast aspect; 5-15% slope; sagebrush and Pinus ponderosa woodland; quartzite outcrops. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4142 Rick McNeill Matt Voigt 2009 6 7 158 U.S.A. Montana Fergus [location and coordinates withheld] 1016 Meadow and hill slope in Pinus ponderosa; high dry soils; southeast aspect; 0-25% slope. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5160 Rick McNeill 2009 6 26 177 U.S.A. Montana Meagher Lewis and Clark National Forest: Little Belt Mountains: Forest Road 6393 along Spring Creek, ca 0.5 mi SW of Basin Creek Campground. -110.4418 46.635 1725 Northwest side of creek; southwest aspect; 0-15% slope; Pinus ponderosa and Artemisia tridentata woodland. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5310 Rick McNeill 2009 6 28 179 U.S.A. Montana Chouteau Lewis and Clark National Forest: Highwood Mountains: saddle along Forest trail, 1.5 air mi NE of Prospect Peak. -110.4814 47.4718 1720 Open meadow in saddle, seasonally wet; northwest aspect; 15-20% slope; scattered Pinus ponderosa. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6409 Rick McNeill 2009 7 14 195 U.S.A. Montana Meagher Lewis and Clark National Forest: Little Belt Mountains: east side of Smith River, Indian Springs Campground, 26.8 air mi NW of White Sulphur Springs. -111.2472 46.8553 1327 Riparian zone and bench above river, wooded Pseudotsuga menziesii; west aspect; 0-5% slope. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6885 Rick McNeill 2009 7 19 200 U.S.A. Montana Judith Basin Lewis and Clark National Forest: Little Belt Mountains: Ettien Ridge, Forest Road 831, ca 2.5 air mi SW of Judith Guard Station. -110.3205 46.818 1879 Meadow on hill slope, scattered, Pinus contorta and Pseudotsuga menziesii; east aspect; 0-15% slope; shallow soil, limestone. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7036 Rick McNeill 2009 7 20 201 U.S.A. Montana Judith Basin Lewis and Clark National Forest: Little Belt Mountains: Forest Road 487, above South Fork Judith River at Hoover Springs. -110.5256 46.7245 2164 Open meadow; southwest aspect; 5-10% slope; limestone. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7511 Rick McNeill 2009 7 27 208 U.S.A. Montana Lewis and Clark Lewis and Clark National Forest: Front Range: Scapegoat Plateau: permanent snow field, ca 1.5 air mi WNW of Scapegoat Mountain. -112.8604 47.3186 2385 Along edge of snow field, small streams flowing into limestone cracks/caves; very shallow soil or bare rock slabs; west aspect; 0-30% slope. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 77354 B. E. Nelson 2009 6 17 168 U.S.A. Montana Powder River Custer National Forest: Ashland District: Red Shale Campground and vicinity on U. S. Hwy 212 above East Fork Otter Creek, ca 6 air mi E of Ashland. -106.1467 45.571 957 987 Forb and grass flats. Phenology: flowering. RM USFS 883277 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 77409 B. E. Nelson 2009 6 17 168 U.S.A. Montana Powder River Custer National Forest: Ashland District: on the divide between East Fork Otter Creek and Wilbur Creek on Wilbur Creek (Forest Road 4775), ca 13 air mi E of Ashland. -105.9955 45.5992 1128 1152 Meadow and logged area. Phenology: flowering. RM USFS 885220 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 831 Hans Hallman 2009 6 20 171 U.S.A. Montana Rosebud Custer National Forest: Ashland Ranger District: King Mountain Hiking and Riding Area: in and around East Fork O' Dell Creek ca 2.5 air mi E of O' Dell Creek or Forest Road 4131, ca 12.5 air mi S of Ashland. -106.2651 45.4219 1115 1164 Partially burned ponderosa pine-dominated upland. Phenology: fruiting. RM USFS 885219 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 921 Hans Hallman 2009 6 20 171 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: in and around Anderson Reservoir in Stafford Draw along Forest Road 47032, ca 3.5 air mi S of Home Creek School on U.S. Hwy 212, ca 16 air mi ESE of Ashland. -106.0024 45.5138 1057 1079 Grassland with partially burned, open ponderosa pine forest. Phenology: fruiting. RM RM 860907 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 14006 Brian Elliott 2008 7 6 188 U.S.A. Wyoming Park Beartooth Mountains: Shoshone National Forest: at Clarks Fork Trailhead on Wyo Hwy 296 and NE, ca 17 air mi SE of Cooke City, Montana. -109.6515 44.8829 2042 2317 On hills with Douglas fir and lodgepole pine forest with scattered meadows and aspen stands. Phenology: flowering. RM RM 864375 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 14517 Brian Elliott 2008 8 16 229 U.S.A. Montana Carbon Beartooth Mountains: Custer National Forest: on south-facing slope of Line Creek Plateau, ca 7 air mi NE of Beartooth Pass, ca 12.5 air mi SSW of Red Lodge. -109.3518 45.0228 2896 Avalanche chute flanked by mixed conifer forest. Phenology: flowering. RM RM 863542 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 14580 Brian Elliott 2008 8 16 229 U.S.A. Montana Carbon Beartooth Mountains: Custer National Forest: top of Line Creek Plateau, ca 5-7.5 air mi NE of Beartooth Pass, ca 12-13 air mi SSW of Red Lodge. -109.341 45.0302 2978 3048 Alpine meadows and talus. Phenology: flowering. RM USFS 857585 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 14856 Brian Elliott 2010 6 1 152 U.S.A. Wyoming Crook Black Hills National Forest: ca 12.5 air mi W (265°) of Spearfish, SD, E of Sand Creek Road on south-facing slope N of Dugout Gulch, below cliffs. 1387 On south-facing slope; cliffs in Pinus ponderosa/Berberis repens forest. USGS Quad:Tinton Survey ID#:10D001 Phenology: flowering & fruiting. RM RM 355623 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6138 Robert W. Lichvar 1984 6 14 166 U.S.A. Montana Big Horn Ok-A-Beh Road. 1387 Open grassy slope with lupinus. Phenology: flowering. RM RM 210481 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 280-667 F. B. Cotner 1937 7 3 184 U.S.A. Montana Gallatin Crazy Mountains: Cottonwood Bench, near Bozeman. Phenology: flowering. RM USFS 471113 Arnica sororia physical specimen Asteraceae Arnica sororia Greene ABE-109 Anthony B. Evanko 1950 7 11 192 U.S.A. Montana Madison Beaverhead National Forest: Vigilante Range Station IV. 2225 Slope 4%, WNW exposure; deep loam; grassland with Fid, Asp, Kcr, Poa, Geranium. Common. Phenology: flowering. RM USFS 471044 Arnica sororia physical specimen Asteraceae Arnica sororia Greene PL-164 Paul C. Lemon Anthony Evanko 1941 7 16 197 U.S.A. Montana Madison Beaverhead National Forest: Vigilante Experimental Range: Cattle Unit. 2286 Deep black loam soil; grassland with Festuca idahoensis, Geranium. Uncommon. Phenology: flowering & fruiting. RM USFS 471108 Arnica sororia physical specimen Asteraceae Arnica sororia Greene RDC-6 Ronald D. Christianson 1959 6 22 173 U.S.A. Montana Powell Deerlodge National Forest: Modesty Creek Ridge. 1981 Slope 20%, southeast exposure; fescue grassland; with Festuca idahoensis, Festuca scabrella, Koeleria cristata, Stipa columbiana, Arenaria rosea. Occurrence rare. Phenology: flowering. RM USFS 471114 Arnica sororia physical specimen Asteraceae Arnica sororia Greene ABE-65 Anthony B. Evanko Peterson 1950 7 19 200 U.S.A. Montana Madison Beaverhead National Forest: Cliff Lake Bench. 2134 Grassland; slope 5%, NNW exposure; deep loam soil with Fid, Poa, Asp, Stipa, lupine; more arid spot. Common locally. Phenology: flowering & fruiting. RM RM 21637 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5223 P. A. Rydberg Ernst A. Bessey 1897 6 20 171 U.S.A. Montana Gallatin Spanish Basin. 1981 Phenology: flowering. RM RM 22486 Arnica sororia physical specimen Asteraceae Arnica sororia Greene s.n. J. W. Blankinship 1899 6 20 171 U.S.A. Montana Gallatin Bozeman. Meadows. Common. Phenology: flowering. RM USFS 471112 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6 C. Eugene Larsen 1938 9 3 246 U.S.A. Montana Ravalli Bitterroot National Forest. 1371 Slope 40%, west exposure; moist hillside, shallow rocky soil; timber and grass cover type with Bte, Asp, Fid. Phenology: flowering & fruiting. RM USFS 471111 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 304 Merton J. Reed 1953 7 9 190 U.S.A. Montana Ravalli Bitterroot National Forest: Sula District. 1981 Steep south slope; coarse granitic soil; open grassland; with Agropyron spicatum, balsamroot, Koeleria, Poa, Carum. Phenology: flowering. RM USFS 471110 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1587 C. H. Macdonald 1959 7 4 185 U.S.A. Montana Ravalli Bitterroot National Forest: Greyhorse pasture. 1371 Slope 10%, west exposure; weed and grass cover type with Geranium, rose, snowberry, brome; sandy loam clay soil. Phenology: flowering. RM RM 202872 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 11499 C. Leo Hitchcock C. V. Muhlick 1945 6 25 176 U.S.A. Montana Missoula Blackfoot Valley: 1 mi W of Greenough. Sagebrush hills. Phenology: flowering. RM RM 252726 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 56387 W. E. Booth 1956 6 10 162 U.S.A. Montana Broadwater Ca 20 mi E of Townsend. Open Douglas-fir forest and creek bottom. Phenology: flowering. RM RM 122339 Arnica sororia physical specimen Asteraceae Arnica sororia Greene s.n. J. W. Blankinship 1899 6 24 175 U.S.A. Montana Gallatin Bozeman. Phenology: flowering. RM RM 22483 Arnica sororia physical specimen Asteraceae Arnica sororia Greene s.n. J. W. Blankinship 1898 7 5 186 U.S.A. Montana Gallatin River: lower canyon. Phenology: flowering. RM RM 218456 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 17902 C. Leo Hitchcock 1948 7 1 183 U.S.A. Montana Lewis and Clark 7 mi W of Lincoln: near Hwy 2. Open field. Phenology: flowering. RM RM 218906 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 17893 C. Leo Hitchcock 1948 7 2 184 U.S.A. Montana Lewis and Clark Rock Creek, ca 8 mi NW of Conway. Phenology: flowering & fruiting. RM RM 218905 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 17768 C. Leo Hitchcock 1948 6 27 179 U.S.A. Montana Lake 2 mi S of Polson. Open grassy slope. Phenology: flowering & fruiting. RM RM 202867 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 12424 C. Leo Hitchcock C. V. Muhlick 1945 7 17 198 U.S.A. Montana Meagher 2 mi N of Ringling. Sagebrush hills. Achenes sparsely puberulent. Phenology: flowering & fruiting. RM RM 622159 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5447 James P. Vanderhorst 1995 7 9 190 U.S.A. Montana Beaverhead Grasshopper Creek drainage: ca 14 air mi W of Dillon. 1951 Rolling hills with Artemisia tridentata/Elymus spicatus community, with Astragalus adsurgens, Astragalus miser. Plants widespread and characteristic of this habitat type. Phenology: flowering. RM USFS 885218 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4709 Hans Hallman 2010 6 10 161 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: ca 0.5 air mi E of Fletcher Reservoir between Forest roads 4792 and 47921, ca 27.5 air mi SSE of Ashland. -106.1227 45.2045 1112 1143 Draw with green ash, juniper, and ponderosa pine. Phenology: flowering. RM RM 908458 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4789 Hans Hallman 2010 6 11 162 U.S.A. Montana Powder River Ca 0.5 air mi W of Otter Creek Road, ca 0.5 air mi S of Custer National Forest boundary, ca 30 air mi SSE of Ashland. -106.1384 45.1659 1091 1115 Grass and ponderosa pine-dominated draw with juniper, Linum, Tragopogon, and Rhus. Phenology: flowering. RM USFS 885217 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5228 Hans Hallman 2010 6 24 175 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: E of Forest Road 4775, ca 1.5 air mi SE of East Fork Otter Creek Road, ca 2.5 air mi SSW of Holiday Campground, ca 13.5 air mi E of Ashland. -106.0025 45.6057 1109 1189 Ponderosa pine-dominated forest with scattered rock outcrops and grass-dominated openings. Phenology: flowering. RM USFS 885216 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5285 Hans Hallman 2010 6 26 177 U.S.A. Montana Rosebud Custer National Forest: Ashland Ranger District: W of Forest Road 4794 in the vicinity of Horse Creek Buttes, ca 6 air mi SE of Poker Jim Butte, ca 23 air mi S of Ashland. -106.2752 45.2689 1195 1213 Grass and sagebrush-dominated grazed prairie with scattered, wet cattle wallows. Phenology: fruiting. RM USFS 885215 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5481 Hans Hallman 2010 6 28 179 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: N of Forest Road 4409, generally between Cabin Creek Spring and Deer Creek Spring, ca 11 air mi ENE of Ashland. -106.0755 45.6569 1158 1231 Ponderosa pine forest with grass-dominated openings, with Rhus, Rosa, and Balsamorhiza patches. Phenology: fruiting. RM USFS 885214 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5505 Hans Hallman 2010 6 29 180 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: along Forest Road 4409, ca 1 air mi W of its junction with East Fork Otter Creek Road, ca 14 air mi ENE of Ashland. -106.0003 45.639 1231 1262 Upland ponderosa pine and grass-dominated woodland. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5611 Hans Hallman 2010 6 30 181 U.S.A. Montana Powder River Ca 1 air mi N of Belle Creek Road, ca 4 air mi E of its junction with Mont Hwy 59, ca 19 air mi SSE of Broadus. -105.2449 45.1976 1036 1091 Grass and sagebrush-dominated grazing land with some moist draws and scattered small areas of badlands. Phenology: fruiting. RM USFS 885213 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5813 Hans Hallman 2010 7 6 187 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: in vicinity between Holiday Campground and SE to Sutton Spring, E of Forest Road 4777, ca 15 air mi ENE of Ashland. -105.9735 45.6376 1201 1219 Ponderosa pine forest with dense groundcover of Berberis and Toxicodendron. Phenology: fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 80098 B. E. Nelson Joseph L. M. Charboneau 2010 6 13 164 U.S.A. Montana Valley On ridge between Lena Coulee and Cut Throat Coulee on the Timber Creek Trail, ca 41 air mi SW of Glasgow. -107.3114 47.7659 740 798 Clay and bentonite badlands with ponderosa pine. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 469 Joseph L. M. Charboneau 2010 6 24 175 U.S.A. Montana Valley On Ridge Road, on ridge above Tony Coulee, ca 2.5 air mi SW of Finn Reservoir, ca 36 air mi SW of Glasgow. -107.259 47.91 868 954 Drainage bottom. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 521 Joseph L. M. Charboneau 2010 6 26 177 U.S.A. Montana Phillips Off of Sunnyslope Road, ca 2 air mi N of Woody Island Coulee, ca 13 air mi ENE of Turner; ca 40 air mi NNW of Malta. -108.1485 48.9045 876 881 Rolling grasslands with occasional sagebrush on loamy to sandy soil. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 633 Joseph L. M. Charboneau 2010 6 27 178 U.S.A. Montana Phillips Matador Ranch: on Dry Fork Road, on top of Dry Fork Ridge, ca 2.5 air mi N of Wrangler Reservoir, ca 16.5 air mi ESE of Zortman. -108.2047 47.8103 896 926 In moister draw bottoms. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 778 Joseph L. M. Charboneau 2010 6 30 181 U.S.A. Montana Phillips On Border Road, in the vicinity of a natural gas pipeline compression station, ca 1/4 air mi W of Whitewater Reservoir, ca 6 air mi NNW of Whitewater; ca 28 air mi NNE of Malta. -107.6491 48.8478 736 743 Low-lying intermittent pond (dry). Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2009 Joseph L. M. Charboneau 2010 7 22 203 U.S.A. Montana Blaine W of Mont Hwy 241, ca 2 air mi SSW of the Turner Port of Entry, ca 10.5 air mi NW of Turner; ca 33 air mi NNE of Harlem. -108.4107 48.9698 914 932 Moist bottoms. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 81691 B. E. Nelson 2011 6 18 169 U.S.A. Montana Phillips Along Hog Farm Road just E of Big Warm Creek, ca 1 air mi SE of Ester Lake, ca 25 air mi SW of Malta. -108.24 48.0879 807 Plains grassland with small disturbed areas. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 81883 B. E. Nelson 2011 6 20 171 U.S.A. Montana Valley Along Bentonite Road, ca 1.5 air mi W of Mahan and Hoyt Reservoir, ca 7 air mi W of Glasgow. -106.7822 48.1982 664 689 Plains grassland with draws. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 81978 B. E. Nelson 2011 6 22 173 U.S.A. Montana Valley In Barber Coulee just S of Willow Creek Road, ca 36 air mi SW of Glasgow. -107.1206 47.8145 768 Bottom of the draw and adjacent slopes. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82077 B. E. Nelson 2011 6 24 175 U.S.A. Montana Phillips Along Stage Road (Mont Hwy 204) ca 1/2-3/4 mi N of Wild Horse Creek, ca 16 air mi S of Dodson; ca 23 air mi SW of Malta. -108.2685 48.1693 786 804 Badlands with gravel to cobblestone size rocks, with drainage channels, bentonite boils, grassy patches, and grassland on the flats above. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82135 B. E. Nelson 2011 6 24 175 U.S.A. Montana Phillips Along Alkali Road, ca 1.5 air mi E of Stage Road (Mont Hwy 204), and 1-1.5 air mi N of North Fork Mud Creek, ca 9 air mi S of Dodson, ca 17 air mi WSW of Malta -108.224 48.2908 786 Plains grasslands with vernal depressions. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82388 B. E. Nelson 2011 6 26 177 U.S.A. Montana Valley At the end of the Montfort Road 2.5-3 air mi S of Vandalia; ca 10 air mi SE of Hinsdale. -106.9163 48.3141 689 716 Plains grassland with vernal depressions on stony soil. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82465 B. E. Nelson 2011 6 28 179 U.S.A. Montana Phillips At the intersection of U.S. Hwy 191 and Sunnyslope Road, ca 2 air mi N of Loring; ca 32 air mi N of Malta. -107.8593 48.8201 853 859 Rolling plains grassland with stony knolls and swales. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82507 B. E. Nelson 2011 6 28 179 U.S.A. Montana Phillips At the corner of Grabofsky and North Sunnyslope roads, 1 mi S of Saskatchewan, ca 45 air mi NNW of Malta. -108.0838 48.9838 865 871 Rolling plains grassland with swales. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82570 B. E. Nelson 2011 6 28 179 U.S.A. Montana Phillips Hills E of Chapman above Woody Island Coulee, ca 38 air mi NNW of Malta. -108.1123 48.872 847 868 Grassy flats with silver sagebrush, below the bluffs. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5041 Joseph L. M. Charboneau 2011 6 14 165 U.S.A. Montana Phillips N of Blount Cut Across, ca 8.5 air mi W of First Creek Reservoir, ca 27 air mi ESE of Zortman; ca 42.5 air mi SSW of Malta. -107.9612 47.873 823 826 Grasslands with fringed sage and spikemoss on clay soil. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5190 Joseph L. M. Charboneau 2011 6 15 166 U.S.A. Montana Phillips W of Midale Road, ca 4.5 air mi NNE of Veseth Reservoir, ca 28.5 air mi ENE of Zortman; ca 28 air mi SSW of Malta. -108.1218 47.9905 829 832 Grasslands with fringed sage, spikemoss, and scattered silver sagebrush. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5230 Joseph L. M. Charboneau 2011 6 15 166 U.S.A. Montana Phillips Button Butte Coulee, W of Rudolph Valley Road, ca 5 air mi WNW of Button Butte, ca 29 air mi NW of Zortman; ca 26 air mi SSW of Malta. -107.9847 48.1158 774 780 Grasslands with fringed sage and spikemoss. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5455 Joseph L. M. Charboneau Alice Sawyer 2011 6 21 172 U.S.A. Montana Valley Charles M. Russell National Wildlife Refuge: Sixth Ridge, ca 9 air mi SSE of Pines Reservoir, ca 25 air mi SW of Fort Peck; ca 26.5 air mi S of Glasgow. -106.6607 47.8296 621 731 Ponderosa pine-juniper woodland with openings on clay soil. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5585 Joseph L. M. Charboneau 2011 6 23 174 U.S.A. Montana Phillips American Prairie Reserve: Dry Fork Ridge, S of West Fork Dry Fork Creek, ca 3.5 air mi ENE Wrangler Reservoir, ca 29 air mi ESE of Zortman; ca 43 air mi SSW of Malta. -108.1344 47.7879 850 884 Grasslands with big sagebrush on clay hills. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6091 Joseph L. M. Charboneau 2011 6 28 179 U.S.A. Montana Phillips Charles M. Russell National Wildlife Refuge: CK Ridge, W of Refuge Road 206, ca 10 air mi ESE of Taint Reservoir, ca 24 air mi SE of Zortman; ca 52 air mi SSW of Malta. -108.1914 47.6616 804 884 Moist swale in sagebrush-grasslands above the breaks. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6150 Joseph L. M. Charboneau 2011 6 28 179 U.S.A. Montana Phillips Ridge E of Spring Creek, W of CK Ridge Road, ca 2.5 air mi E of Blizzard Reservoir, ca 18 air mi SE of Zortman; ca 48 air mi SSW of Malta. -108.2761 47.7335 865 905 Sagebrush-grasslands on rolling hills of clay to loamy soil with swales and areas of stony silty hardpans. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6334 Joseph L. M. Charboneau 2011 6 30 181 U.S.A. Montana Phillips Larb Hills (North): N of Cottonwood Creek, ca 4 air mi S of Bauer Reservoir, ca 13 air mi SW of Saco; ca 17.5 air mi ESE of Malta. -107.5084 48.3002 756 807 Silver sagebrush-grasslands on loamy soil on rolling hills with swales. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6427 Joseph L. M. Charboneau 2011 6 30 181 U.S.A. Montana Phillips Larb Hills (North): E of Lower Harb Road, ca 1.5 air mi E of Beaver Creek, ca 15 air mi SW of Saco; ca 15.5 air mi ESE of Malta. -107.5591 48.3039 710 762 Rolling sagebrush-grasslands on loamy soil with slopes and swales. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6783 Joseph L. M. Charboneau 2011 7 5 186 U.S.A. Montana Phillips SW of Martin Lake, N of Turner Cutacross Road, ca 4 air mi W of Loring; ca 15 air mi WNW of Whitewater; ca 30 air mi NNW of Malta. -107.9482 48.7898 850 853 Grasslands with occasional silver sagebrush on loamy soil. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6864 Joseph L. M. Charboneau 2011 7 5 186 U.S.A. Montana Phillips Cottonwood Creek at confluence with Black Coulee, ca 9.5 air mi SW of Horseshoe Lake, ca 15 air mi WSW of Loring; ca 30.5 air mi NNW of Malta. -108.1903 48.7393 801 823 Riparian thickets and floodplain on clayey soil. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7317 Joseph L. M. Charboneau 2011 7 11 192 U.S.A. Montana Phillips Korsbeck Waterfowl Production Area: W of Stage Road, ca 8 air mi N of Ester Lake, ca 24 air mi NNE of Zortman; ca 21.5 air mi SW of Malta. -108.2706 48.2154 789 792 Grasslands on loamy soil with occasional silver sagebrush, alkaline areas, and large patches of crested wheatgrass, yellow sweetclover, and alfalfa. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 7485 Joseph L. M. Charboneau 2011 7 11 192 U.S.A. Montana Phillips Matador Ranch: Coburn Butte and prairie to the E, ca 8.5 air mi WSW of Veseth Reservoir, ca 8.5 air mi ESE of Zortman; ca 40 air mi SSW of Malta. -108.3518 47.8933 954 1146 Shallow draw on butte in ponderosa pine forest. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82166b B. E. Nelson 2011 6 24 175 U.S.A. Montana Phillips Along and above "Middle Fork" Exeter Creek, ca 9 air mi ENE of Dodson; ca 10 air mi WNW of Malta. -108.061 48.4244 801 820 Plains grassland and slopes and swales leading to the creek. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 82262b B. E. Nelson 2011 6 26 177 U.S.A. Montana Valley Ridge between Burnett Creek and Collins Creek E of Rock Creek Road, ca 19 air mi NNE of Hinsdale. -106.9642 48.6535 728 762 Rolling plains grassland with stony soil and swales. Phenology: flowering & fruiting. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 14580 Brian Elliott 2008 8 16 229 U.S.A. Montana Carbon Beartooth Mountains: Custer National Forest: top of Line Creek Plateau, ca 5-7.5 air mi NE of Beartooth Pass, ca 12-13 air mi SSW of Red Lodge. -109.341 45.0302 2978 3048 Alpine meadows and talus. Phenology: flowering. RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 14517 Brian Elliott 2008 8 16 229 U.S.A. Montana Carbon Beartooth Mountains: Custer National Forest: on south-facing slope of Line Creek Plateau, ca 7 air mi NE of Beartooth Pass, ca 12.5 air mi SSW of Red Lodge. -109.3518 45.0228 2896 Avalanche chute flanked by mixed conifer forest. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 420 Emma E. Freeland 2012 6 11 163 U.S.A. Montana Madison Madison Valley: Bear Trap Canyon, east side of the Madison River, ca 8.5-9 air mi NE of Ennis, ca 0.5 air mi NE of Ennis Lake. -111.6495 45.4554 1475 1573 Sagebrush grassland opening in a Douglas fir and Rocky Mountain juniper forest. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 486 Emma E. Freeland 2012 6 11 163 U.S.A. Montana Madison Madison Valley: Cameron Bench, ca 4 air mi E of McAtee bridge, ca 26 air mi SSE of Ennis. -111.5946 45.0889 1792 Flat grassland on a bench at the base of steep mountains. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 806 Emma E. Freeland 2012 6 16 168 U.S.A. Montana Beaverhead Blacktail Valley: Blacktail Deer Creek, ca 18 air mi N of Lima Reservoir, ca 33 air mi SE of Dillon. -112.3527 44.9038 1957 2033 East facing slopes with Artemisia tridentata and Symphoricarpos. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1107 Emma E. Freeland 2012 6 19 171 U.S.A. Montana Madison Tobacco Root Mountains: Granite Creek, ca 10 air mi WSW of Ennis Lake, ca 5.5 air mi N of Virginia City. -111.9252 45.3624 1859 1963 Sagebrush grassland hills. Phenology: flowering. RM USFS Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1213 Emma E. Freeland Justine Modica 2012 6 22 174 U.S.A. Montana Madison Madison Range: Mill Creek, ca 2-3 air mi NW of Lake Cameron, ca 11 air mi SE of Ennis. -111.5893 45.2213 1929 2021 Edge of a sagebrush grassland and a Douglas fir forest. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1760 Emma E. Freeland 2012 7 5 187 U.S.A. Montana Madison Foothills of the Snowcrest Range: Robb-Ledford State Wildlife Management Area: Robb Creek, ca 3 air mi WNW of Hogback Mountain. -112.1824 44.9261 2362 2439 Sagebrush steppe on east-facing slopes. Phenology: flowering. RM USFS 885212 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 77354 B. E. Nelson 2009 6 17 168 U.S.A. Montana Powder River Custer National Forest: Ashland District: Red Shale Campground and vicinity on U. S. Hwy 212 above East Fork Otter Creek, ca 6 air mi E of Ashland. -106.1467 45.571 957 987 Forb and grass flats. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1741 Joshua J. Irwin 2010 6 30 181 U.S.A. Idaho Custer Pahsimeroi Mountains: Meadow Creek just above Elbow Creek, 14.5 air mi ESE of Challis. -113.9444 44.45656 10 2010 Well developed soil in mesic shrub-steppe vegetation; 4° slope, NE aspect; volcaniclastic geology. 1-25 individuals apparent. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1072 Joshua J. Irwin 2010 6 17 168 U.S.A. Idaho Lemhi Challis National Forest: Lemhi Range: Cow Creek Canyon at the confluence of the North Fork Cow Creek, 5.5 air mi NE of Ellis. -113.95766 44.73925 10 1619 Well developed soil in mesic grassland vegetation; 20° slope, N aspect; volcaniclastic geology. 26-75 individuals apparent. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4025 Joshua J. Irwin 2010 8 12 224 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Mountains: China Spring area, on the north side of the forest road, 14.8 air mi SW of Salmon. -114.09147 45.01281 10 2695 Well developed soil in mesic forb dominated vegetation; 10° slope, W aspect; andesitoid-rhyolitoid geology. Population is dominant throughout the area. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 1479 Joshua J. Irwin 2010 6 24 175 U.S.A. Idaho Lemhi Salmon National Forest: Salmon River Mountains: ridge above Hot Springs Creek ca 0.4 mi SW of the Hot Springs, 6 air mi SSW of Shoup. -114.34454 45.30304 10 1344 Well developed soil in mesic grassland vegetation; 13° slope, W aspect; granite geology. 1-25 individuals apparent. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4628 Joshua J. Irwin 2011 6 1 152 U.S.A Idaho Lemhi Salmon National Forest: Northern Salmon River Mountains: near USGS Point 3510 above Ouzel Rapids on the lower Middle Fork Salmon River, 21.5 air mi WSW of Shoup. -114.6712 45.236 30 1055 75-150 plants estimated in mesic soil within a forb dominated vegetation, 19 degree slope, SSE aspect, gneiss geology. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4758 Joshua J. Irwin 2011 6 7 158 U.S.A Idaho Lemhi Salmon National Forest: Northern Salmon River Mountains: ridgetop dividing lower Wheat and Corn creeks, 19.5 air mi W of Shoup. -114.67799 45.37608 30 1250 In mesic soil within grassland vegetation, 21 degree slope, west aspect, gneiss geology. 25-75 plants estimated. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4839 Joshua J. Irwin 2011 6 9 160 U.S.A Idaho Lemhi Challis National Forest: Salmon River Mountains: Middle Fork Salmon River Trail between Cove and Camas creeks, 36.1 air mi NW of Challis. -114.73082 44.8861 30 1171 In xeric soil within shrub-steppe vegetation, 21 degree slope, ENE aspect, granodiorite geology. 25-75 plants estimated. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5080 Joshua J. Irwin 2011 6 15 166 U.S.A Idaho Lemhi Salmon National Forest: Lemhi Range: McKim Creek just above the confluence with North Fork McKim Creek, 24.8 air mi NNE of Challis. -113.95866 44.80814 30 1703 In mesic soil within grassland vegetation, 10 degree slope, SE aspect, rhyodacite geology. 25-75 plants estimated. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5348 Joshua J. Irwin Craig Scott 2011 6 22 173 U.S.A Idaho Custer Challis National Forest: White Knob Mountains: first draw W of the confluence of Flower Garden and Cherry Creek, 12.0 air mi S of Mackay. -113.66097 43.74444 30 1997 25-75 plants estimated in mesic soil within a forb dominated vegetation, 12 degree slope, S aspect, alluvial geology. 25-75 plants estimated. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6077 Joshua J. Irwin 2011 7 12 193 U.S.A Idaho Lemhi Salmon National Forest: Lemhi Range: near Bear Valley Creek at the Wright Creek confluence, 20.7 air mi WNW of Leadore. -113.75364 44.78339 30 1971 Within shrub-steppe vegetation, 8 degree slope, SW aspect, quartzite geology. Phenology: flowering & fruiting. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6143 Joshua J. Irwin 2011 7 13 194 U.S.A Idaho Lemhi Salmon National Forest: Lemhi Range: ridge dividing North and Middle Fork Little Timber creeks, due N of Stone Reservoir, 8.4 air mi SW of Leadore. -113.46715 44.58745 30 2379 75-150 plants estimated in mesic soil within shrub-steppe vegetation, 37 degree slope, SE aspect, till geology. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 90302 Ronald L. Hartman 2010 7 25 206 U.S.A. Idaho Lemhi Salmon National Forest: Beaverhead Mountains: Forest Road 187, Lewis and Clark Backcountry Byway, at Agency Creek, 1.5 air mi W of Lemhi Pass. -113.4818 44.973 1798 1981 Streamside with disturbed areas and adjacent Douglas fir forest and meadow. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 90473 Ronald L. Hartman 2010 7 27 208 U.S.A. Idaho Lemhi Salmon National Forest: Lemhi Range: Hayden Creek Road to Mill Creek (Forest Road 010), between Apple and Little Sawmill creeks, ca 16 air mi W of Leadore. -113.6607 44.7677 2378 Dry ridge and rock outcrop. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 90626 Ronald L. Hartman 2010 7 29 210 U.S.A. Idaho Lemhi Salmon National Forest: Beaverhead Mountains: between Morgan Mountain and Eagle Mountain. -113.834 45.511 Ridgetop and edge of Douglas fir forest. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 91627 Ronald L. Hartman Joshua J. Irwin, Emma E. Stewart 2011 6 15 166 U.S.A. Idaho Lemhi Salmon National Forest: Lemhi Range: lower Cow Creek, 4.5 air mi NE of Ellis. -113.99125 44.740033 1457 1493 On lower steep slope, often in shrubs or on rubble. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5584 Emma E. Freeland 2013 6 15 166 U.S.A. Montana Madison Madison Range: Bear Creek Wildlife Management Area: North Bear Creek Trailhead, ca 4 air mi WNW of Sphinx Mountain, ca 14 air mi SE of Ennis. -111.5586 45.1748 1935 Grassland used as a parking area. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5725 Emma E. Freeland 2013 6 18 169 U.S.A. Montana Madison Tobacco Root Mountains: Harris Creek, ca 14-15 air mi WNW of Ennis, ca 6 air mi SW of South Baldy Mountain. -112.0197 45.4104 1969 2012 Sagebrush grasslands. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5815 Emma E. Freeland 2013 6 19 170 U.S.A. Montana Madison Snowcrest Range: Ledford Creek, ca 16-18 air mi S of Ruby River Reservoir, ca 30 air mi SE of Dillon. -112.1162 44.9509 2073 2079 Mixed coniferous woodland in a drainage bottom. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6152 Emma E. Freeland 2013 6 24 175 U.S.A. Montana Beaverhead Western Centennial Mountains: Bean Creek, ca 3 air mi N of Idaho, ca 10 air mi W of Lakeview. -112.0237 44.5811 2103 2146 Sagebrush grasslands. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6344 Emma E. Freeland 2013 6 28 179 U.S.A. Montana Madison Tobacco Root Mountains: Mill Creek, ca 19 air mi W of South Baldy Mountain, ca 18 air mi NW of Ennis. -112.0666 45.478 1990 Open mixed conifer woodland near a campground. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6469 Emma E. Freeland 2013 6 29 180 U.S.A. Montana Madison Tobacco Root Mountains: Mill Creek to Rock Creek Lake, ca 10-11 air mi S of Whitehall, ca 2-3 air mi NNE of Manhead Mountain. -112.0881 45.7082 1789 1801 Grasslands on gentle slopes. Phenology: flowering. RM RM Arnica sororia physical specimen Asteraceae Arnica sororia Greene 6725 Emma E. Freeland 2013 7 6 187 U.S.A. Montana Madison Madison Range: Lee Metcalf Wilderness, Spanish Peaks Unit: Mill Creek to headwaters of Jourdain Creek, ca 6-7 air mi N of Fan Mountain, ca 9-11 air mi ENE of Ennis. -111.5457 45.3962 2600 Open mixed coniferous forest. Phenology: flowering. RM RM 111132 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 2127 Herman E. Hayward 1927 7 14 195 U.S.A. Wyoming Crook Inyan Kara Creek, 17 mi S of Sundance. -104.2644 44.1979 1 1591 Foothills; grass association; xerophytic. Phenology: flowering & fruiting. RM RM 633691 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 5177 C. H. Refsdal B. E. Nelson 1995 7 10 191 U.S.A. Wyoming Lincoln Basins and Mountains of Southwest Wyoming: west end of Fossil Ridge, ca 16 air mi W of Kemmerer; 7.3 mi SW on Northwest Pipeline access road. -110.8375 41.7675 1 2256 2365 Seeps, meadow. Phenology: flowering & fruiting. RM RM 981997 Arnica sororia physical specimen Asteraceae Arnica sororia Greene 4500 Bonnie Heidel 2018 5 24 144 U.S.A. Wyoming Sweetwater Great Divide Basin Area: Whitehorse Creek Wilderness Study Area: ca 1.7 air mi WNW of Oregon Butte summit, ca 15.2 air mi SSW of South Pass City. -108.8968 42.2581 2243 Ravine slopes, northeast aspect, silt; with Artemisia tridentata ssp. vaseyana, Symphyotrichum spp., Delphinium biocolor. Phenology: flowering. RM RM 1000150 Arnica sororia physical specimen Asteraceae Arnica sororia Greene WYO050207 Shannen M. Cashman 2019 7 2 183 U.S.A. Wyoming Fremont Foothills of Wind River Range: Weiser Knoll. Located 12.6 miles southeast of Lander, WY and 2.2 air miles northwest of Commissary Hill. 1836 Sagebrush grasslands. Soil: Loam. Phenology: flowering. 3600 3,1,0 true