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RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6834 Timothy W. Chumley Irene Thien 1997 6 28 179 U.S.A. Colorado Fremont East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Twin Mountain: on south slopes and stream gulches just off U. S. Hwy 50, ca 6 air mi NW of Ca¤on City. -105.2923 38.49739 1926 2000 On rocky, open slopes in pinyon-juniper. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5246 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: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6163 Peter J. Ebertowski 2003 7 7 188 U.S.A. Wyoming Weston Thunder Basin National Grassland and Vicinity: tributary of Skull Creek, E of Sunquist Draw, on County Road 14, ca 13 air mi ESE of Upton; ca 15 air mi NE of Newcastle. -104.3896 44.0481 1396 1414 Lower part of ravine slope with Scribner's panic grass. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 63780 B. E. Nelson James F. Fowler 2005 4 20 110 U.S.A. Arizona Coconino Coconino National Forest: Casner Research Natural Area: Casner Canyon E of Oak Creek, ca 2 air mi N of Munds Mountain, ca 3 air mi NE of Sedona. -111.7282 34.8933 1411 1432 Open south-facing slope with scattered chaparral, Opuntia, and cover of Bromus rubens. Phenology: flowering & fruiting. RM RM 153533 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1846 Aven Nelson Ruth A. Nelson 1935 5 12 132 U.S.A. Arizona Gila San Carlos Indian Reservation. -110.4586 33.29829 9 762 Gila/Graham Counties. Phenology: flowering & fruiting. RM RM 153534 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1939 Aven Nelson Ruth A. Nelson 1935 5 16 136 U.S.A. Arizona Maricopa Mazatzal Mountains: about Collom Camp at foot of mountains. -111.30774 33.65362 1 1219 Oak woods. Phenology: fruiting. RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5121 Ronald L. Hartman 1978 4 29 119 U.S.A. New Mexico Luna NM Hwy 331: SSW of Deming, leading to Hermanas: ca 9 mi from Deming. -107.81539 32.167 1 1310 Arroyo through desert dominated by Larrea, Prosopis, and Florensia. RM RM 719369 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 509 Kevin J. Taylor 1997 5 26 146 U.S.A. Colorado Delta Northern Gunnison Basin: ca 3 air mi NNE of Crawford. -107.5825 38.7489 1829 1981 Juniper and aspen shrubland (Atriplex). Phenology: flowering. RM RM 775731 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4907 Kevin J. Taylor 1998 5 15 135 U.S.A. Colorado Delta Northern Gunnison Basin: ca 3.5 air mi NNE of Crawford. -107.6011 38.7636 1905 Sagebrush and saltbush meadow; juniper. Phenology: flowering. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1073 Grace M. Kostel 2004 6 1 153 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 4.5 air mi SSE of Scenic on Forest Road 7172, near the Cheyenne River. -102.496833 43.7195 884 On revegetated and stabilized sand dunes of the river. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1234 Grace M. Kostel 2004 6 2 154 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 4.5-5 air mi SE of Wall, 2-2.5 mi S of I-90, channel draining into Whitewater Creek.. -102.184833 43.928833 807 838 On badlands in deep channel draining into creek; soils of white, heavy clays. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1427 Grace M. Kostel 2004 6 4 156 U.S.A. South Dakota Custer Buffalo Gap National Grassland and Vicinity: ca 10-10.5 air mi ESE of Fairburn, S of County Road 18 in French Creek. -103.008333 43.652667 884 In clay soil along creek and creek banks. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1480 Grace M. Kostel 2004 6 5 157 U.S.A. South Dakota Fall River Buffalo Gap National Grassland and Vicinity: ca 4 mi SE of Limestone Butte. -103.121167 43.1415 945 On livestock dam with alkaline soil. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2566 Grace M. Kostel 2004 6 22 174 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 3.5 air mi ESE of Wall and 0.5 mi S of U.S. Hwy 14 on Cottonwood Creek. -102.1645 43.982167 807 In Pascopyrum smithii/Nassellus viridula plant community and grass upland on north side of creek in silty soil. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2790 Grace M. Kostel 2004 6 25 177 U.S.A. South Dakota Custer Buffalo Gap National Grassland and Vicinity: ca 19-19.5 air mi SE of Hermosa and 2 air mi SW of Red Shirt and 0.5 miW of SD Hwy 40. -102.890167 43.6765 884 899 In prarie dog town with soils of silt and clay. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4840 Grace M. Kostel 2003 10 13 286 U.S.A. South Dakota Fall River Buffalo Gap National Grassland and Vicinity: side drainage of Moss Agate Creek, ca 5 air mi NW of Edgemont. -104.0205 43.3633 1158 Ungrazed drainage; soils on side slopes are gravelly, rocky, and loose; soils in bottom are deep, moist loam. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5052 Grace M. Kostel 2005 5 27 147 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 11 air mi SE of Scenic. -102.470667 43.692 884 In badlands area, revegetated and stable, soils are clay and clay loam. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5230 Grace M. Kostel 2005 5 30 150 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 8.5-9 air mi SSE of Wall in Conata Basin. -102.188667 43.809833 786 Badlands floodplain of deep white clay soil. Phenology: flowering. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5401 Grace M. Kostel 2005 6 1 152 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: Indian Creek Wilderness Area: ca 6.5 air mi WSW of Scenic. -102.6805 43.7585 819 On slopes scattered with Juniperus scopulorum in a Nasellus viridula plant community of silty clay soils. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6424 Grace M. Kostel 2005 6 16 167 U.S.A. South Dakota Jackson Buffalo Gap National Grassland and Vicinity: ca 7 air mi SW of Kadoka. -101.632117 43.780567 701 On rolling prairie near the rim of a drainage/draw, in silty loam soils. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6546 Grace M. Kostel 2005 6 17 168 U.S.A. South Dakota Jackson Buffalo Gap National Grassland and Vicinity: ca 10 air mi ESE of Cottonwood. -101.701333 43.9385 759 On gently rolling prairie uplands, soils are gravel and silt loams. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6926 Grace M. Kostel 2005 6 18 169 U.S.A. South Dakota Custer Buffalo Gap National Grassland and Vicinity: ca 9.5-10 air mi SE of Farmingdale and 1 air mi SE of Berner Dam. -102.772667 43.840467 899 In rock beds of rocky, heavy clay soil with iron present. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7353 Grace M. Kostel 2005 6 22 173 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 6.5 air mi SSE of Wall. -102.193767 43.901517 831 On a rock covered mesa having a soil depression due to moisture at summit; soil is gravel and silt. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7390 Grace M. Kostel 2005 6 23 174 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Wall. -102.196333 43.909317 823 In typic badlands habitat; soils are deep heavy clay. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7483 Grace M. Kostel 2005 6 24 175 U.S.A. South Dakota Fall River Buffalo Gap National Grassland and Vicinity: ca 5 air mi SE of Oelrichs and ca 3 air mi SE of Limestone Butte near Forest Road 7026. -103.142683 43.142583 1026 On rolling prairie uplands dissected by deep drainages; soils are loam to loamy clay. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 8211 Grace M. Kostel 2005 7 7 188 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 6.5 air mi SE of Scenic in Cain Creek. 43.724517 823 In a side drainage of and in the creek, soils are white clays. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 8240 Grace M. Kostel 2005 7 7 188 U.S.A. South Dakota Pennington Buffalo Gap National Grassland and Vicinity: ca 6 air mi SSE of Scenic. -102.485783 43.713133 899 914 On a ridge in a Yucca glauca plant community, soils are silt loam and sand. Phenology: fruiting. RM USFS 511844 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 26 J. N. Kimmel 1924 8 6 219 U.S.A. New Mexico Catron Datil National Forest: Mangas Ranger Station pasture. -108.35739 34.0921 2317 On level slope; sandy clay loam soil. Phenology: fruiting. RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 3138 Margarette J. Lyon 1994 5 16 136 U.S.A. Colorado Mesa San Miguel and Lower Dolores River Drainages: ca 5 air mi NE of Gateway. -108.95 38.7331 1676 Dry wash and adjacent hillsides: on barren, granitic gravel on east side and red, sandy soils on west side; with pinyon and juniper. Phenology: flowering & fruiting. RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 3420 Margarette J. Lyon 1994 5 20 140 U.S.A. Colorado Montrose San Miguel and Lower Dolores River Drainages: San Miguel Drainage: canyon and hills S of San Miguel River, ca 8 mi NW of Naturita. -108.6759 38.2994 1585 1676 With pinyon and juniper. Phenology: flowering. RM RM 785459 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 26664 Larry C. Higgins 2005 5 25 145 U.S.A. Arizona Mohave Arizona Strip: Cedar Ridge. -112.89039 36.87969 1 1554 Chinle clay soils; pinyon, juniper community. Phenology: fruiting. RM RM 766948 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 291 Sarah Nunn Ronald L. Hartman 2001 5 26 146 U.S.A. Colorado Larimer Roosevelt National Forest: Front Range: The Narrows on U.S. Hwy 34, just W of the bridge over the Big Thompson River, S of Alexander Mountain, ca 6 air mi W of Loveland. -105.2402 40.4307 1 1646 1951 Steep sided ravine with rocky south and east facing slopes, shrub cover of Ribes and Rubus with Bromus and Thermopsis. Phenology: flowering. RM RM 805321 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 78975 Ronald L. Hartman 2004 6 8 160 U.S.A. New Mexico Los Alamos [location and coordinates withheld] 1707 2012 Rocky slopes. Phenology: fruiting. RM RM 612195 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5121 Ronald L. Hartman 1978 4 29 119 U.S.A. New Mexico Luna NM Hwy 331: SSW of Deming, leading to Hermanas: ca 9 mi from Deming. -107.81539 32.167 1 1310 Arroyo through desert dominated by Larrea, Prosopis, and Florensia. Phenology: fruiting. RM RM 38285 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 3651 Frank Tweedy 1900 7 182 U.S.A. Wyoming Johnson Buffalo. -106.6924 44.3509 3 1219 1524 Phenology: fruiting. RM RM 601164 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6293 Robert D. Dorn 1995 7 25 206 U.S.A. Wyoming Platte 18 mi NW of Wheatland. -105.2541 42.198 1 1829 Rocky slope with Triodanis. Phenology: fruiting. RM RM 600678 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6391 Robert D. Dorn 1995 8 5 217 U.S.A. Wyoming Goshen 15 mi NW of Ft. Laramie. -104.6412 42.3975 1 1585 Ponderosa pine with Juniperus and Triodanis holzingeri. Phenology: fruiting. RM RM 69157 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 215 Vie Willits 1909 7 1 182 U.S.A. Wyoming Sheridan Sheridan Road. -106.9378 44.7464 4 1189 Dry lanes. Phenology: fruiting. RM RMRS Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 96 Alvin L. Medina 1981 9 2 245 U.S.A. New Mexico Grant Gila National Forest; Stevens Creek. 1981 Phenology: flowering & fruiting. RM RM 166088 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 9800 George E. Osterhout 1932 7 10 192 U.S.A. South Dakota Pennington Black Hills: along road to Mt. Rushmore. Along road. Phenology: flowering. RM RM 111010 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1643 Herman E. Hayward 1927 6 29 180 U.S.A. South Dakota Custer Black Hills: Wind Cave. -103.4795 43.558 1250 Foothills; grass association; xero-mesophytic. Phenology: flowering. RM RM 48583 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4033 C. S. Crandall 1897 8 16 228 U.S.A. Colorado Larimer Horsetooth Gulch. 1229 Phenology: flowering. RM RM 56417 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 878 Earl L. Johnston 1906 U.S.A. Colorado no county Phenology: flowering. RM RM 80891 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 254 Edwin B. Payson 1914 4 27 117 U.S.A. Colorado Montrose Naturita. 1646 Dry hillside. Phenology: flowering & fruiting. RM RM 80894 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 478 Edwin B. Payson 1914 6 24 175 U.S.A. Colorado Montrose Naturita. 1646 Dry hillside. Phenology: fruiting. RM RM 83893 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 10396 Francis Ramaley 1915 6 16 167 U.S.A. Colorado Boulder Eldorado Springs. Streamside meadow. Phenology: flowering & fruiting. RM RM 53129 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1076 Francis Ramaley 1905 6 10 161 U.S.A. Colorado Boulder Boulder vicinity. 1700 Phenology: flowering & fruiting. RM RM 43717 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5049 Frank Tweedy 1902 7 182 U.S.A. Colorado Boulder Near Boulder. 1524 1829 Plains and foothills. Phenology: flowering & fruiting. RM RM 166091 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2371 George E. Osterhout 1901 6 11 162 U.S.A. Colorado Weld New Windsor. River. Phenology: flowering & fruiting. RM RM 166092 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 366 George E. Osterhout 1894 7 182 U.S.A. Colorado Weld New Windsor. River. Phenology: flowering. RM RM 166089 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4929 George E. Osterhout 1913 6 14 165 U.S.A. Colorado Weld Windsor. RM RM 166094 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 699 George E. Osterhout 1895 7 16 197 U.S.A. Colorado Larimer Horsetooth. -105.14982 40.50509 4 1646 Phenology: flowering & fruiting. RM RM 166093 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7420 George E. Osterhout 1900 6 10 161 U.S.A. Colorado Las Animas Brantly Canyon. Phenology: flowering & fruiting. RM RM 311912 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. s.n. George E. Osterhout 1912 6 2 154 U.S.A. Colorado Mesa De Beque. Phenology: flowering & fruiting. RM USFS 511710 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 331 Paul L. Ginter 1941 5 14 134 U.S.A. Colorado Larimer Roosevelt National Forest: Rist Canyon. -105.2212 40.6331 1 1646 15% east slope; deep silt clay; common in park. Phenology: flowering & fruiting. RM RM 385094 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6772 June Haines Georgia Haines 1986 6 21 172 U.S.A. Wyoming Natrona Sweetwater Rocks: Savage Pocket, ca 13 air mi NE of Muddy Gap Junction. -107.2585 42.482 1 1865 2073 Base of cliff at edge of creek. Phenology: flowering & fruiting. RM RM 326413 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 3531 Keith H. Dueholm Mary Alice Sanguinetti 1978 7 8 189 U.S.A. Wyoming Campbell [location and coordinates withheld] 1219 Eroded uplands, ponderosa pine ridges, ravines, sagebrush plains, open clayey slopes, loose talus; along stream in ravine, slopes. Phenology: fruiting. RM RM 322079 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7016 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. RM RM 326414 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7046 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 301164 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6293 Robert D. Dorn 1995 7 25 206 U.S.A. Wyoming Platte 19 mi NW of Wheatland. -105.2541 42.198 1829 Rocky slope with Triodanis. Phenology: fruiting. RM RM 600678 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6391 Robert D. Dorn 1995 8 5 217 U.S.A. Wyoming Goshen 15 mi NW of Ft. Laramie. -104.6453 42.3994 1 1585 Ponderosa pine with Juniperus and Triodanis holzingeri. Phenology: fruiting. RM RM 375952 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 9195 B. E. Nelson 1982 7 12 193 U.S.A. Wyoming Crook Black Hills: Bear Lodge Mountains: E slope of Norgrain Hill near South Dakota, ca 7.5 air mi NE of Aladdin; ca 25.5 air mi NE of Sundance. -104.0778 44.70111 1 1067 Moist shaded bottom of a draw. Phenology: fruiting. RM RM 382121 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1168 Hollis Marriott 1982 6 17 168 U.S.A. Wyoming Crook Devils Tower National Monument: below south face of tower. -104.7146 44.5875 1310 Common on open grassy south facing slope. Phenology: flowering. RM RM 381986 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1257 Hollis Marriott 1982 7 1 182 U.S.A. Wyoming Crook Devils Tower National Monument: Prairie Dog Town, east end. -104.7054 44.5854 1 1173 Common on disturbed alluvial soil. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2008 Hollis Marriott 1982 8 10 222 U.S.A. Wyoming Crook Black Hills: Devils Tower National Monument: Prairie Dog Town SE of road near culvert. -104.7074 44.586 1 1173 Grassland. RM RM 375954 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2678 Hollis Marriott 1983 6 7 158 U.S.A. Wyoming Crook [location and coordinates withheld] 1097 Grassland on red shale soil. Phenology: flowering. RM RM 375953 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2734 Hollis Marriott 1983 6 7 158 U.S.A. Wyoming Crook [location and coordinates withheld] 1097 Grassy slopes below quarry. Phenology: flowering. RM RM 335873 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 676 Hollis Marriott 1981 6 2 153 U.S.A. Wyoming Crook Devils Tower National Monument: east end of Dog Town, along south side of main road. -104.7054 44.5852 1 1173 Occasional on well-drained alluvial soil with Convolvulus arvensis and Aristida. Phenology: fruiting. RM RM 375951 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 16232 Ronald L. Hartman 1983 7 15 196 U.S.A. Wyoming Crook Black Hills: ca 2 air mi NE of Aladdin. -104.1592 44.6567 1 1097 Prairie, sandstone outcrops, and dry drainage; prairie. Phenology: fruiting. RM RM 375950 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 17739 Ronald L. Hartman 1984 7 11 193 U.S.A. Wyoming Crook Black Hills: Boundary Gulch, ca 6 air mi S of Beulah. -104.0622 44.4661 1 1310 Moist stream bottom with Pinus ponderosa dominated sandy slopes; partly open sandy slope. Phenology: fruiting. RM RM 132696 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 11375 Aven Nelson 1931 5 23 143 U.S.A. New Mexico Eddy Carlsbad. -104.23199 32.42719 1 945 Sandy river banks. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 72290 B. E. Nelson Bernadette Kuhn 2007 6 19 170 U.S.A. Colorado Otero Comanche National Grassland: ca 0.5 air mi E and above West Dry Creek, ca 12.5 air mi SW of Timpas; ca 29 air mi SW of La Junta. -103.9826 37.7489 1500 1518 Sandstone bluffs and limestone chip rock flats above. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 72478 B. E. Nelson Bernadette Kuhn 2007 6 23 174 U.S.A. Colorado Otero Comanche National Grassland: ca 4 air mi E of Colo Hwy 109, ca 8 air mi SE of La Junta. -103.4547 37.8867 1353 1365 Clayey slopes below sandstone caprock. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 13090 Brian Elliott 2004 5 15 136 U.S.A. Colorado Otero Comanche National Grassland: ca 16 mi S of La Junta, ca 5 mi W of Vogel Canyon on bluffs above the junction of Forest Road 350 and Rourke Road. -103.6195 37.7579 1463 On alluvial soil at the base of the ridge and with Sporobolus; shaley or Jurassic clay soil layer under the limestone. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 85116 Ronald L. Hartman Bernadette Kuhn, Laura E. Lukas 2007 5 28 148 U.S.A. Colorado Las Animas Comanche National Grassland: Purgatoire Canyon, northeast end. -103.5584 37.6412 1326 1405 Rimrock and slope below to flats along river. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4792 Bernadette Kuhn 2008 6 6 158 U.S.A. Colorado Otero [location and coordinates withheld] 1376 Roadside and rocky hill. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 60627 Ronald L. Hartman Brian Elliott 1998 5 23 143 U.S.A. Colorado Fremont Wet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Temple Canyon Road, ca 3.5 air mi SW of Canon City (city center). -105.2617 38.4121 1768 1798 Rocky slopes and grasslands. Phenology: flowering & fruiting. RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 77352 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 & fruiting. RM USFS 887113 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 77386 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. -105.9975 45.6018 1158 1231 Scoria-clinker ridge and slope with ponderosa pine. Phenology: fruiting. RM USFS 884522 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 814 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. -106.2683 45.4241 1070 1091 Grass and silver-sage dominated draw. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 934 Hans Hallman 2009 6 21 172 U.S.A. Montana Powder River S of U.S. Hwy 212 and E of Titus Creek, ca 22.5 air mi ESE of Ashland. -105.7898 45.5276 1091 1128 Grass-dominated grazing land interspersed with badlands. Phenology: fruiting. RM USFS 884523 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1534 Hans Hallman 2009 7 4 185 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: along Beaver Creek Road or Forest Road 4133 at and around Road Creek Reservoir, ca 2 air mi NW of Holiday Campground and ca 14.5 air mi ENE of Ashland. -105.9977 45.6532 1097 1109 In and around drainage and reservoir, dominated by sedges and grasses. Phenology: fruiting. RM USFS 887119 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2588 Hans Hallman 2009 7 22 203 U.S.A. Montana Rosebud Custer National Forest: Ashland Ranger District: in and around Blacks Pond off of Forest Road 4021, ca 17 air mi S of Ashland. -106.2883 45.3472 1112 1121 Grass-dominated slope above reservoir. Phenology: fruiting. RM USFS 887118 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4726 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 USFS 887117 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5255 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. -105.999 45.6071 1103 1140 In and around grazed draw dominated by green ash, hawthorn, chokecherry, and Symphoricarpos. Phenology: fruiting. RM USFS 887116 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5375 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. -106.0625 45.66 1085 Moist draw with quaking aspen, Prunus, and hawthorn. Phenology: fruiting. RM USFS 887115 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5981 Hans Hallman 2010 7 10 191 U.S.A. Montana Powder River Custer National Forest: Ashland Ranger District: in the vicinity of Forest Road 4516, ca 2 air mi W of Mont Hwy 484 or Otter Creek Road, ca 6.5 air mi NNW of Fort Howes. -106.1952 45.3875 1006 1042 Grass and sagebrush-dominated grazing land. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1056 Joseph L. M. Charboneau 2010 7 5 186 U.S.A. Montana Phillips S of Content Road on ridge E of Horse Pasture Coulee, ca 3.5 air mi SW of Black Cow Reservoir, ca 22.5 air mi SSE of Malta. -107.6976 48.0637 740 756 Drainage bottom. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1096 Joseph L. M. Charboneau 2010 7 5 186 U.S.A. Montana Valley W of Larb Creek Road, in Black Coulee and ridge to the N, ca 3 air mi NW of Korman Reservoir, ca 36 air mi WSW of Glasgow. -107.3775 48.0799 753 786 Swales and creekside. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 1601 Joseph L. M. Charboneau 2010 7 13 194 U.S.A. Montana Valley E of Skyview Ridge Road, ca 2.5 air mi E of Horace Reservoir, ca 21.5 air mi NNW of Glasgow. -107.0885 48.2198 740 759 Sagebrush-grasslands on clay soil. Phenology: fruiting. RM USFS 511845 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 64 R. T. Abbott 1912 7 16 198 U.S.A. Montana Powder River Custer National Forest. SMPM. -106.2029 45.405 1 945 In clay soil; west slope. Phenology: vegetative only. RM RM 848 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 848 U.S.A. Nebraska 848 is not specified as either, Accession #, nor collector # on lable. Phenology: flowering & fruiting. RM USFS 511846 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 680 Robert B. Rolfe 1922 7 15 196 U.S.A. Montana Custer Custer National Forest: Along Cow Creek Bottom. 1067 On east facing slope; in black loam soil; in sagebrush. Rare. Phenology: vegetative only. RM USFS 511841 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 72257 Lincoln C. Ellison 1935 7 1 182 U.S.A. Montana Custer Northern Rocky Mountain Forest and Range Experiment Station: Pasture E, near Quadrat E-3. Pasture. Phenology: vegetative only. RM RM 130419 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2456 J. E. Kirkwood 1927 9 14 257 U.S.A. Montana Ravalli Along highway toward Dixon. -114.314 47.3166 9 914 Along highway. Phenology: vegetative only. RM RM 251660 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. s.n. Harry Hapeman 1939 5 30 150 U.S.A. Nebraska Franklin Minden. Phenology: vegetative only. RM USFS 511631 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. W-69 E. J. Woolfolk 1937 6 24 175 U.S.A. Montana Custer Northern Rocky Mountain (U.S.R.L. Exp. Sta.) 792 In clay soil. Phenology: vegetative only. RM RM 69929 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 289 S. S. Visher 1910 7 11 192 U.S.A. South Dakota Harding Little Missouri River Valley, 25 mi N of Ashcroft. Open woods. Phenology: flowering & fruiting. RM RM 76452 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 504 S. S. Visher 1912 8 6 219 U.S.A. South Dakota Perkins Phenology: flowering. RM RM 112370 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2456 J. E. Kirkwood 1927 9 14 257 U.S.A. Montana Lake Ravalli. -114.1807 47.2771 1 914 Roadside. Phenology: vegetative only. RM RM 706181 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2047 Bonnie Heidel 2001 6 18 169 U.S.A. Montana Big Horn Bighorn Canyon National Recreation Area: along Ok-aBeh Rail. 1207 On red silt soil; below Marina well; associated with Poa pratensis, Bromus japonicus, Ambrosia trifida, Sonchusspp, Juncus longisylis. Uncommon. Phenology: vegetative only. RM RM 24591 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 653 H. L. Bolley 1891 7 21 202 U.S.A. North Dakota Medora: Badlands. Phenology: flowering. RM RM 154468 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. s.n. Herbert C. Hanson 1932 7 14 196 U.S.A. North Dakota McKenzie Watford City. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5651 Joseph L. M. Charboneau 2011 6 23 174 U.S.A. Montana Phillips Charles M. Russell National Wildlife Refuge: hills N of outlet of Fourchette Creek into Fourchette Bay, E of Refuge Road 858, ca 3 air mi NNE of Fowler Reservoir, ca 39 air mi ESE of Zortman; ca 47 air mi SSE of Malta. -107.766 47.7035 704 740 Grasslands with sagebrush on loamy to sandy hillsides. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5740 Joseph L. M. Charboneau Mark Majerus, Michael Dolan, Noorjahan Parwana, Katie Butts, and Mary Frieze 2011 6 24 175 U.S.A. Montana Phillips American Prairie Reserve: Box Elder Creek and hills above, ca 4 air mi E of Indian Lake, ca 38.5 air mi ESE of Zortman; ca 44 air mi SSE of Malta. -107.7674 47.735 704 728 Floodplain bottoms with greasewood on clay soil and riparian areas. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6073 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 Open, south-facing slopes. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 6210 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 Juniper thicket and coulee bottom. Phenology: flowering & fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7047 Joseph L. M. Charboneau 2011 7 7 188 U.S.A. Montana Valley Charles M. Russell National Wildlife Refuge: N of Refuge Road 108, ca 6.5 air mi ENE of Willow Flat Reservoir, ca 6 air mi WSW of Fort Peck; ca 15 air mi SSE of Glasgow. -106.5597 47.9998 689 722 Big sagebrush steppe on badlands clay hills with large patches of yellow sweetclover. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7377 Joseph L. M. Charboneau 2011 7 11 192 U.S.A. Montana Phillips American Prairie Reserve: North Fork White Rock Coulee, ca 4.5 air mi ESE of Little Warm Reservoir, ca 24.5 air mi ENE of Zortman; ca 24 air mi SSW of Malta. -108.0498 48.0479 792 804 Grassland hills with big sagebrush on clay to loamy soil. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7492 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: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7619 Joseph L. M. Charboneau 2011 7 14 195 U.S.A. Montana Valley Charles M. Russell National Wildlife Refuge: Middle Eighth Ridge, ca 2.5 air mi ENE of Graveyard Hill, ca 24 air mi SW of Fort Peck; ca 30 air mi SSW of Glasgow. -106.8199 47.7911 731 804 Grasslands with big sagebrush on clay. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 7973 Joseph L. M. Charboneau 2011 7 19 200 U.S.A. Montana Phillips Sand Hills: ca 3.5 air mi SSE of Silver Peak, ca 5.5 air mi SSW of Zortman; ca 49 air mi SW of Malta. -108.5657 47.8436 1012 1048 Sandstone ridge with occasional ponderosa pine, juniper, and big sagebrush. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 8050 Joseph L. M. Charboneau 2011 7 21 202 U.S.A. Montana Phillips Charles M. Russell National Wildlife Refuge: Mickey Butte, ca 4 air mi ENE of Dry Lake, ca 43 air mi ESE of Zortman; ca 54.5 air mi S of Malta. -107.7862 47.5891 807 884 Moist coulee bottoms. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 8075 Joseph L. M. Charboneau 2011 7 21 202 U.S.A. Montana Phillips UL Bend National Wildlife Refuge: Dry Lake along Refuge Road 897, ca 6 air mi SSE of Fish Fossil Reservoir, ca 40 air mi SE of Zortman; ca 56 air mi S of Malta. -107.8657 47.5697 719 731 Big sagebrush-grasslands on stony silty soil. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 8105 Joseph L. M. Charboneau 2011 7 21 202 U.S.A. Montana Phillips Charles M. Russell National Wildlife Refuge: Bell Ridge, E of CMR Auto Tour Route (Refuge Road 101), ca 2.5 air mi N of the Missouri River, ca 19 air mi S of Zortman; ca 60 air mi SW of Malta. -108.5683 47.6433 832 868 Open, dry, south-facing slope with big sagebrush and greasewood on clay to shale. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4784 Michael K. Kirkpatrick 2011 5 17 137 U.S.A. Colorado Mesa Colorado River Valley: unnamed side canyon E of De Beque Canyon, N of Kimbell Mesa, ca 21 air mi ENE of Grand Junction. -108.2422 39.2712 1524 1597 Sandy, cobbly slopes with juniper. Phenology: flowering & fruiting. RM USFS 898552 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 4916 Michael K. Kirkpatrick 2011 5 22 142 U.S.A. Colorado Mesa Colorado River Valley: mesas on either side of Little Horsethief Creek, S of Sunnyside Road, ca 3 air mi NW of Horsethief Mountain and ca 2 air mi SE of De Beque. -108.1895 39.3118 1536 1615 Sagebrush meadow and slopes with scattered juniper and mixed grass-forb understory. Phenology: flowering. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 5084 Michael K. Kirkpatrick 2011 5 24 144 U.S.A. Colorado Mesa Unnamed mesa N of Plateau Creek, ca 6 air mi E of Colo Hwy 65 at I-70 and ca 5 air mi W of Molina. -108.1667 39.1926 1621 1725 Clay slopes and badlands with greasewood and shadscale. Phenology: flowering & fruiting. RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 814 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. -106.2683 45.4241 1070 1091 Grass and silver-sage dominated draw. Phenology: fruiting. RM USFS 887114 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 77352 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 & fruiting. RM USFS 887112 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 77386 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. -105.9975 45.6018 1158 1231 Scoria-clinker ridge and slope with ponderosa pine. Phenology: fruiting. RM RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 2677 Lori E. Brummer 2011 5 17 137 U.S.A. Colorado Delta Uncompahgre Plateau: Escalante Canyon, McCarthy Trail, ca 11.5 air mi W of Delta. -108.2674 38.738 1509 1859 Juniper grasslands on clay hillsides with sandstone mesa tops. Phenology: flowering & fruiting. RM RM 957690 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 662 Carlos A. Popolizio Nancy E. Hasting, Rosalie M. Smith, Donald L. Hazlett 1996 6 11 163 U.S.A. Wyoming Platte Camp Guernsey: ca 0.9 km NW of Rocky Pass, ca 1.6 km W of Webb Canyon Road. 1500 Moderate to steep slopes; mixed juniper woodland and Cercocarpus scrubland; rocky loam with cryptogamic soil crust; drainage; with Juniperus scopulorum, Cercocarpus montanus, Yucca glauca, Gutierrezia sarothrae, Stipa spp. Locally common; erect, taprooted, annual herb; 6-10 cm tall; ovary warty. Phenology: flowering. RM RM 961413 Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 103 Nancy E. Hastings P. Block 2007 5 22 142 U.S.A. Wyoming Platte Camp Guernsey: Walsh Ranch parcel in Deadhorse Canyon; east end of transect ca 1.5 km SW of Range Guard 4, ca 7.6 km NE of Guernsey Reservoir. 1524 Level; intermittent stream drainage recovering from fire; silty loam with cobbles; with Symphoricarpos occidentalis, Toxicodendron rydbergii, Silene antirrhinum, Tragopogon dubius, Descurainia pinnata, Ellisia nyctelea, Bromus tectorum, Poa pratensis. Scattered; erect, rhizomatous, perennial herb; 2 dm tall. Phenology: flowering & fruiting. RM Euphorbia spathulata physical specimen Euphorbiaceae Euphorbia spathulata Lam. 855 Timothy W. Chumley 1995 6 16 167 U.S.A. Colorado Fremont East-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Twin Mountain off U.S. Hwy 50, ca 5.6 air mi NW of Canon City; ca 2 road mi from turnoff to Royal Gorge. -105.3004 38.4974 1 1890 2073 In a coarse sandy upland wash. Phenology: fruiting. 3600 3,1,0 true