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RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 7304 Margarette J. Lyon 1994 8 14 226 U.S.A. Utah Grand San Miguel and Lower Dolores River Drainages: along Dolores River. -109.2502 38.8193 1341 Riparian area along river with Salix exigua and Tamarix. Phenology: flowering & fruiting. RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 7646 Margarette J. Lyon 1994 8 20 232 U.S.A. Colorado Mesa San Miguel and Lower Dolores River Drainages: Unaweep Canyon along West Creek. -108.7627 38.7477 2134 Riparian area with Acer negundo, Populus, Salix exigua, Eleocharis, and Equisetum. Phenology: flowering & fruiting. RM RM 727239 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 12527 Stuart Markow 2003 8 27 239 U.S.A. Wyoming Teton City of Jackson: west side of Flat Creek on east side of Visitor's Center, ca 50 yds E of U.S. Hwy 26/89/187. 1951 Riparian with Phalaris arundinacea, Carex utriculata, Carex aquatilis, Glyceria elata. Phenology: flowering. RM RM 341675 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 3539 Erwin F. Evert 1981 9 6 249 U.S.A. Wyoming Big Horn Bighorn Basin: along U.S. Hwy 16 and 20; ca 15 mi N of Worland; ca 3.5 mi SE of Manderson. -107.9134 44.233 1 1219 In wet area with Scirpus and Juncus. Phenology: fruiting. RM RM 544430 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 211 Jan Pollet 1989 7 18 199 U.S.A. Wyoming Platte Along Cottonwood Creek, 29 road mi NW of Wheatland. -105.1954 42.2984 1 1616 Creek banks, live water. Phenology: flowering. RM RM 543879 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 329 Jan Pollet 1989 8 2 214 U.S.A. Wyoming Platte Cottonwood Creek, 32 road mi NW of Wheatland. -105.2141 42.2979 1 1616 Creek banks. Phenology: flowering & fruiting. RM RM 543936 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 658 Jan Pollet 1989 9 2 245 U.S.A. Wyoming Platte North Platte River, S of U.S. Hwy 26, 0.5 road mi S of Guernsey. -104.7243 42.2558 1 1323 Phenology: flowering & fruiting. RM RM 311826 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 8860 John Taylor Connie Taylor 1971 8 23 235 U.S.A. Wyoming Converse Edge of North Platte River, 13 mi SE of Douglas, U.S. Hwy 26 and 87 bridge. -105.15778 42.64222 1 1417 Clone near irrigation pump; growing on steep bank at river edge. Phenology: fruiting. RM RM 726930 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 465 Patricia P. Douglas B. E. Nelson, N. E. Hastings, R. M. Smith 1995 8 23 235 U.S.A. Wyoming Platte Camp Guernsey: along North Platte River, ca 1.4 to 2.1 km N of Wendover Bend Ranch, 2 to 3.1 km S of Impact Area. To 511600 4687000. 1249 On a floodplain; on level, west-facing to northwest-facing; in silt with cobbles; with Artemisia, Bromus, Elaeagnus, Heterotheca, and Juniperus spp. Scattered. Phenology: flowering & fruiting. RM RM 202578 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. s.n. Robert E. Pfadt 1946 9 12 255 U.S.A. Wyoming Goshen North Platte River, Torrington. -104.1913 42.0575 1 Flood plain of river. Phenology: flowering & fruiting. RM RM 399071 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 4851 Robert D. Dorn 1987 9 20 263 U.S.A. Wyoming Converse Platte River Banks. -105.3932 42.7618 1 1493 Bank of river with Salix and Glycyrrhiza. Corolla yellow. Phenology: flowering & fruiting. RM RM 594877 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 5844 Robert D. Dorn 1994 9 8 251 U.S.A. Wyoming Platte Grayrocks Reservoir. -104.745 42.1407 1 1341 Shore of reservoir with Bidens and Salix. Corolla yellow. Phenology: fruiting. RM RM 613077 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 7174 Robert D. Dorn 1996 9 18 262 U.S.A. Wyoming Fremont Wind River Canyon. -108.1726 43.4247 1 1432 Riverbank with Glycyrrhiza and Salix exigua. Corolla yellow. Phenology: fruiting. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 8182 Robert D. Dorn 1999 9 17 260 U.S.A. Wyoming Washakie 8 mi NNE of Worland. -107.9083 44.1378 700 1219 Ditch bank with Phalaris. RM RM 366629 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. RH183 Steve Kilpatrick 1982 6 9 160 U.S.A. Wyoming Goshen Wyoming Game and Fish Department Rawhide unit along the North Platte River, ca 2.8 air mi SSE of Lingle; ca 7.5 air mi WNW of Torrington. -104.3208 42.1007 1250 Wet areas. Phenology: buds. RM RM 580083 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 13307 Walter Fertig Jane Struttmann 1992 8 11 224 U.S.A. Wyoming Hot Springs Southern Bighorn Basin: Hot Springs State Park, ponds immediately W of Big Spring, in terrace above east side of Big Horn River. -108.1853 43.6482 1 1323 Edge of cooling ponds on sandy slopes or flats. *occidentalis. Phenology: flowering & fruiting. RM RM 399071 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 4851 Robert D. Dorn 1987 9 20 263 U.S.A. Wyoming Converse Platte River Banks. -105.3932 42.7618 1 1493 Bank of river with Salix and Glycyrrhiza. Phenology: flowering & fruiting. RM RM 594877 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 5844 Robert D. Dorn 1994 9 8 251 U.S.A. Wyoming Platte Grayrocks Reservoir. -104.745 42.1407 1 1341 Shore of reservoir with Bidens and Salix. Phenology: fruiting. RM RM 613077 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 7174 Robert D. Dorn 1996 9 18 262 U.S.A. Wyoming Fremont Wind River Canyon. -108.1726 43.4247 1 1432 Riverbank with Glycyrrhiza and Salix exigua. Phenology: fruiting. RM RM 530595 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 14857 Dieter H. Wilken 1987 6 29 180 U.S.A. Colorado Moffat Dinosaur National Monument: Yampa River: mouth of Disappointment Draw; ca 1.2 mi NW of Deerlodge Park. 1707 Alluvium of riverbank with Tamarix and Salix exigua. Phenology: flowering. RM RM 81875 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 935 Edwin B. Payson 1915 9 7 250 U.S.A. Colorado Montrose Montrose. 1768 Ditch bank. Phenology: flowering. RM RM 93376 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 3302 Ellsworth Bethel R. Duthie and Ira W. Clokey 1919 9 19 262 U.S.A. Colorado Arapahoe S of Engelwood: Platte River. 1615 Marshy ground. Phenology: flowering & fruiting. RM RM 140131 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 14268 Francis Ramaley 1934 7 16 197 U.S.A. Colorado Rio Grande Monte Vista. Streamside. Phenology: flowering & fruiting. RM RM 158429 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 4814 George E. Osterhout 1912 8 28 241 U.S.A. Colorado Sedgwick Julesburg. Phenology: flowering. RM RM 158431 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 5854 George E. Osterhout 1918 8 22 234 U.S.A. Colorado Mesa Debeque. Phenology: flowering & fruiting. RM RM 99424 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 5854 George E. Osterhout 1918 8 22 234 U.S.A. Colorado Mesa Debeque. Phenology: flowering & fruiting. RM RM 158428 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 3248 Ira W. Clokey 1918 8 27 239 U.S.A. Colorado Denver Denver: along Platte River. Phenology: flowering. RM RM 47521 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 3126 J. H. Cowen 1897 9 3 246 U.S.A. Colorado Delta Delta. Phenology: flowering & fruiting. RM RM 13242 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. s.n. J. H. Cowen 1897 9 3 246 U.S.A. Colorado Delta Delta. 1676 Phenology: flowering & fruiting. RM RM 257267 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 4080 Jean H. Langenheim 1955 8 22 234 U.S.A. Colorado Mesa S of Gateway: along canyon of Dolores River. Along roadside. Phenology: flowering & fruiting. RM RM 538212 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 7783 John C. Semple S. Heard 1985 9 8 251 U.S.A. Colorado Delta CO Hwy 133 just E of Hotchkiss: 1 km E of CO Hwy 92. Roadside ditch. Phenology: flowering & fruiting. RM USFS 484096 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 659 Paul L. Ginter 1942 8 18 230 U.S.A. Colorado Mesa 6 mi W of Fruita. 1371 1% west slope, deep moist adobe, plains, roadsides. Phenology: flowering & fruiting. RM USFS 484097 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 1966 Reed C. Rollins 1937 8 27 239 U.S.A. Colorado Delta 10 mi SW of Delta. 1524 Along a ditch bank, clay soil. Phenology: flowering & fruiting. RM RM 717995 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 11141 Robert Merril King 1999 9 16 259 U.S.A. Colorado Weld Ca 11 mi NW of Fort Lupton on Co Hwy 66. -104.936667 40.206944 1575 Phenology: flowering & fruiting. RM RM 318023 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2361 B. E. Nelson 1978 9 26 269 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Goshen Hole: ca 1-1.5 mi SW of Torrington, S of golf course along North Platte River. -104.2132 42.0549 1250 In sandy soil in river bottom with Melilotus. Abundant. Phenology: fruiting. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2382 B. E. Nelson 1978 9 26 269 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Goshen Hole: ca 1.5 mi SW of Torrington, along south side of North Platte River. -104.2133 42.051 1250 Abundant on river bank with Aster. Abundant. RM RM 931691 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 8628 B. E. Nelson 1981 7 23 204 U.S.A. Wyoming Hot Springs Bighorn Basin: along the Big Horn River, ca 7 air mi NNE of Thermopolis; ca 1 air mi ENE of Lucerne. -108.1565 43.7468 700 1310 River banks. RM RM 333753 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 8801 Keith H. Dueholm 1979 8 9 221 U.S.A. Wyoming Converse Powder River Basin: North Platte River, ca 6.5 air mi E of Glenrock. -105.7386 42.8453 1 1493 Floodplain of river, willow thicket, small backwater, sandy terrace above river, sagebrush plains; thicket. Phenology: flowering & fruiting. RM RM 598942 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 27592 B. E. Nelson 1993 7 26 207 U.S.A. Wyoming Platte Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along North Platte River ca 0.6-0.8 air mi SE of Guernsey Dam, ca 1 air mi NW of Guernsey. -104.7633 42.285 1 1323 1341 River bank. Phenology: flowering. RM RM 598941 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 29171 B. E. Nelson 1993 8 25 237 U.S.A. Wyoming Natrona [location and coordinates withheld] 1560 Thickets and dense stands of Russian olive, boxelder, cottonwood, and willow. Phenology: buds. RM RM 598940 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 29194 B. E. Nelson 1993 8 26 238 U.S.A. Wyoming Converse [location and coordinates withheld] 1451 Thickets along the river. Phenology: flowering & fruiting. RM RM 598939 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 29354 B. E. Nelson 1993 8 26 238 U.S.A. Wyoming Converse [location and coordinates withheld] 1503 Thickets along the river. Phenology: flowering & fruiting. RM RM 598938 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 29567 B. E. Nelson 1993 8 31 243 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Goshen Hole: along North Platte River just below mouth of Laramie River, at east edge of Fort Laramie National Historic Site, ca 1.3 air mi SSW of Fort Laramie; ca 20 air mi WNW of Torrington. -104.5296 42.1965 1286 1292 Cottonwood woodland in the river bottom. Phenology: flowering & fruiting. RM RM 598937 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 29650 B. E. Nelson 1993 8 31 243 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Goshen Hole: along the North Platte River on London Flats, ca 2.2 air mi S of Lingle, ca 9.5 air mi WNW of Torrington. -104.3566 42.1072 1262 Thickets in the river bottom. Phenology: flowering & fruiting. RM RM 598936 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 29784 B. E. Nelson 1993 9 27 270 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: off Sheep Creek or County Road 43 ca 3.5-4 air mi ENE of Torrington. -104.1049 42.0789 1280 1295 Banks of small canal. Phenology: flowering & fruiting. RM RM 598935 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 29840 B. E. Nelson 1993 9 27 270 U.S.A. Wyoming Goshen [location and coordinates withheld] 1259 Along the edge of a small stream channel through cottonwood-Russian olive-buffalo berry woodland. Phenology: fruiting. RM RM 598934 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 30034 B. E. Nelson 1993 10 1 274 U.S.A. Wyoming Platte Southern Powder River Basin/Southeastern Plains: Hartville Uplift: just N of Wendover in Wendover Canyon along the North Platte River, ca 8 air mi NW of Guernsey. -104.8813 42.3289 1 1353 1371 Steep, rocky banks with thickets between the river and the railroad tracks. Phenology: fruiting. RM RM 704607 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 33566 B. E. Nelson David Reilly 1994 8 8 220 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: along the Laramie River E of the fort ca 2.5 air mi WSW of Fort Laramie (town); ca 21 air mi WNW of Torrington. -104.5421 42.2004 1292 Cobblestone gravel bar. Phenology: flowering & fruiting. RM RM 704606 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 33617 B. E. Nelson 1994 8 8 220 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: below the Fort Laramie Canal ca 2.5 air mi WSW of Fort Laramie (town), ca 20.5 air mi WNW of Torrington. -104.5472 42.1988 1 1292 1298 Woodland near a slough. Phenology: flowering. RM RM 704605 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 34589 B. E. Nelson 1994 8 30 242 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: along the North Platte River, ca 1 air mi SW of Fort Laramie (town); ca 20.5 air mi NW of Torrington. -104.5321 42.2087 1286 River bank and shore sand bars. Phenology: flowering & fruiting. RM RM 704604 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 34630 B. E. Nelson 1994 8 30 242 U.S.A. Wyoming Goshen Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Fort Laramie National Historic Site: along the Laramie River, ca 1.3 air mi SSW of Fort Laramie (town); ca 21 air mi NW of Torrington. -104.5334 42.2001 1286 Gravelly sand bars and river margin. Phenology: flowering & fruiting. RM RM 642944 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 8182 Robert D. Dorn 1999 9 17 260 U.S.A. Wyoming Washakie 8 mi NNE of Worland. -107.8967 44.1311 1219 Ditch bank with Phalaris. *Corolla yellow Phenology: flowering & fruiting. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 76389 B. E. Nelson 2008 8 15 228 U.S.A. Montana Carbon Bighorn Basin: along a tributary of South Fork Bridger Creek just W of Pryor Mountain Road, ca 8 air mi SE of Bridger. -108.8155 45.207 1 1262 1323 Along stream through redbeds and adjacent wet to dry meadows dominated by Glycyrrhiza. Phenology: flowering. RM RM 238070 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. s.n. Rasmus Christian 1928 9 24 268 U.S.A. Nebraska Kearney Islands on Platte River near Newark. Phenology: flowering. RM RM 736529 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 3913 Steve Rolfsmeier David Sutherland, and Kali Robson. 1987 8 12 224 U.S.A. Nebraska Garden South side of North Platte River, near bridge 1 mi S of Lewellen. Low ground. Locally common. Phenology: flowering & fruiting. RM RM 736549 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 3898 Steve Rolfsmeier David Sutherland 1987 8 12 224 U.S.A. Nebraska Keith North side of North Platte River; east of Sutherland Canal diversion dam. Locally common. Phenology: flowering & fruiting. RM RM 158426 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. s.n. Harry Hapeman 1930 9 18 261 U.S.A. Nebraska Kearney Minden. Phenology: flowering. RM RM 764694 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 10008 Robert D. Dorn 2004 9 10 254 U.S.A. Montana Custer Yellowstone River at Kinsey Bridge. -105.713333 46.533333 701 River bank with S. amygdaloides, S. exigua interior. Phenology: flowering & fruiting. RM RM 395066 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 9131 Klaus H. Lackschewitz 1979 8 7 219 U.S.A. Montana Missoula Clark Fork River Island: Konah Ranch: east shore of island. 966 On mudflats, often in thickets of Salix exigua, up to 1.9m tall. Phenology: flowering & fruiting. RM RM 2467 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. s.n. F. W. Anderson 1888 U.S.A. Montana Cascade Phenology: fruiting. RM RM 137491 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2193 C. Leo Hitchcock 1933 9 14 257 U.S.A. Montana Ravalli Near Bitterroot River, 4 mi N of Victor. Sandy, moist depression. Phenology: flowering. RM RM 130532 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2430 J. E. Kirkwood 1927 8 27 239 U.S.A. Montana Missoula Missoula: Maloney Ranch: Miller Creek. -113.994 46.8721 1 975 Phenology: flowering. RM RM 130522 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2451 J. E. Kirkwood 1927 9 7 250 U.S.A. Montana Missoula Fort Missoula, near water tower. 975 Phenology: flowering. RM RM 706302 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2155 Bonnie Heidel 2001 8 11 223 U.S.A. Montana Big Horn Bighorn Canyon National Recreation Area; immediately west of the campground on the north shore of Afterbay Reservoir. 974 Norther part of wetland; in wet loam with Salix drummondii, Glyceria striata and Mentha arvensis. Phenology: flowering. RM RM 522006 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 9988 Klaus H. Lackschewitz 1981 9 19 262 U.S.A. Montana Yellowstone North of Billings Blvd Bridge. 975 Bordering willow thickets and often associated with reed grasses. Extensive colonies. Phenology: flowering. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 11418 Lori E. Brummer 2012 8 27 240 U.S.A. Colorado Mesa Plateau Creek at confluence with Big Wash, ca 1 mi E of the junction of Colo Hwy 65 and I-70, ca 17 air mi NE of Grand Junction. -108.2738 39.1808 1569 Riparian area along creek in salt desert shrub. Phenology: flowering & fruiting. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 11745 Lori E. Brummer 2012 9 10 254 U.S.A. Colorado Delta Gunnison Gorge Wilderness: West River Trail from wilderness boundary S to where trail ends at cliff, ca 3/4 trail mi from wilderness boundary, ca 7.5 air mi SW of Hotchkiss. -107.8367 38.7489 1567 1582 Riparian area in sparse pinyon/juniper/shrub/rock mix. Phenology: flowering. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 12019 Lori E. Brummer 2012 9 17 261 U.S.A. Colorado Delta Uncompahgre Plateau: Little Dominguez Canyon from Poison Canyon to the bend on the east side of Star Mesa, ca 16.5 air mi WNW of Delta. -108.3818 38.78 1536 1597 Along creek in sandstone canyon. Delta and Mesa County Phenology: flowering. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 12082 Lori E. Brummer 2012 9 19 263 U.S.A. Colorado Montrose Uncompahgre Plateau: Roubideau Canyon; middle canyon just NW of Camel Back, ca 17 air mi NW of Montrose. -108.1823 38.5611 1707 1719 Along creek in low elevation riparian area. Phenology: flowering & fruiting. RM RM 914514 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 10852 Robert D. Dorn 2013 8 14 226 U.S.A. Wyoming Goshen North Platte River at Nebraska, south bank. -104.053333 41.988333 1250 River bank, with Oenothera villosa and Potentilla paradoxa. Phenology: flowering. RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2314a C. H. Refsdal 1994 8 2 214 U.S.A. Utah Summit Southwestern Wyoming and Adjacent Utah: Flaming Gorge National Recreation Area: Little Hole, ca 4 air mi E of Dutch John, on the north side of the Green River. -109.3093 40.9088 1 1661 Shoreline. Phenology: flowering & fruiting. RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2348a C. H. Refsdal Duane Atwood and Lucy Jordan 1994 8 2 214 U.S.A. Utah Daggett Southwestern Wyoming and Adjacent Utah: Grasshopper Island in the Green River, ca 11 air mi E of Dutch John. -109.2902 40.9088 1 1664 Shoreline. Phenology: flowering & fruiting. RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 2440 C. H. Refsdal Duane Atwood and Lucy Jordan 1994 8 2 214 U.S.A. Utah Daggett Southwestern Wyoming and Adjacent Utah: Browns Park: Green River, southeast and east shoreline of the west island; ca 1 air mi W of Jarvis Ranch. -109.1946 40.8943 1 1661 Gradual banks of shoreline with Sisyrinchium. Phenology: flowering & fruiting. RM RM Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 7071 Lori E. Brummer 2011 8 14 226 U.S.A. Colorado Montrose Uncompahgre Plateau: BLM lands off of H54 Road, ca 12 air mi S of Delta. -108.0746 38.5768 1728 Along irrigation ditch in desert scrub. Phenology: flowering. RM RM 957628 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 1040 Carlos A. Popolizio Donald L. Hazlett 1996 8 27 240 U.S.A. Wyoming Platte Camp Guernsey: east bank of North Platte River, ca 0.8 km N of U.S. Hwy 26, and ca 1.3 km S of Hartville Canyon. 1320 River bank with gentle to steep slopes; riverine; gravelly loamy sand; with Clematis ligusticifolia, Equisetum laevigatum, Salix, Scirpus, Rumex sp. Infrequent; erect, perennial herb; 7-10 dm tall; herbage glutinous; disk yellow. Phenology: flowering. RM RM 957629 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 1034 Carlos A. Popolizio Donald L. Hazlett 1996 8 26 239 U.S.A. Wyoming Platte Camp Guernsey: on south bank of North Platte River, ca 0.1 km S of Cantonment, ca 0.1 km N of Oregon Trail. 1450 Gentle to moderate slope; riverine; sand; with Elaeagnus angustifolia, Melilotus officinalis, Eleocharis palustris, Carex, Scirpus spp. Locally common; erect, taprooted herb; 7-10 dm tall; somewhat sticky; disk yellow. Phenology: flowering. RM RM 957631 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 1068 Donald L. Hazlett Carlos A. Popolizio 1996 8 27 240 U.S.A. Wyoming Platte Camp Guernsey: Cantonment, just N of North Platte River, 0.5 km SW of Guernsey Landing Field. 1340 Riverfront with moderate stones; riparian; sand and stones; with Poa palustris, Poa pratensis, Salix, Carex, Mentha spp. Scattered; erect, perennial herb; 1 m tall; herbage glutinous; disk yellow; ray: yellow. Phenology: flowering. RM RM 957632 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 1063 Carlos A. Popolizio Donald L. Hazlett 1996 8 27 240 U.S.A. Wyoming Platte Camp Guernsey: east bank of North Platte River, ca 0.8 km N of U.S. Hwy 26, and ca 1.3 km S of Hartville Canyon. 1320 River bank with gentle to steep slopes; riverine; gravelly loamy sand; with Clematis ligusticifolia, Equisetum laevigatum, Salix, Scirpus, Rumex sp. Infrequent; clambering, taprooted, perennial herb; 5-9 dm tall; disk yellow; ray yellow. Phenology: flowering. RM RM 957469 Euthamia occidentalis physical specimen Asteraceae Euthamia occidentalis Nutt. 558 Patricia P. Douglas B. E. Nelson, Nancy E. Hastings, Rosalie M. Smith 1995 8 22 234 U.S.A. Wyoming Platte Camp Guernsey: creek bottom along North Platte River, ca 3.5 km S of Baldy Mountain, ca 2.1 km NW of Impact Area. 1353 Flat to slight slope; river bank/flood plain; clay loam; with Populus angustifolia, P. deltoides, Aster, and Bromus spp. Scattered; erect fibrous rooted, perennial herb; 45 cm tall; corolla yellow. Phenology: flowering. 3600 3,1,0 true