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

Database Search Results

347 matching records found (of 347).
Search query: Genus begins with Oönopsis, Species begins with multicaulis, (search polygon not defined)
Sorted by: Scientific Name

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1.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: along Rochelle Hills or Forest Road 933 above Sauerkraut Draw, ca 52.5 air mi NNE of Douglas; ca 20 air mi NNEof Bill.  Elev. 4520-4580 ft.
T40N R68W S5 N1/2.  43.4706 N, 105.0507 W; uncertainty 1 mi..  
Clay slopes and knolls. Phenology: flowering. 

B. E. Nelson, 56537.  6/9/2002. 		RM 
     with Peter Ebertowski
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2.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: on the divide between Buzzard and Little Mike creeks, ca 2.5-3 air mi N of Wyo Hwy 450, ca 35 air mi SW of Upton.  Elev. 4580-4640 ft.
T43N R68W S17 W1/2.  43.7001 N, 105.05 W; uncertainty 1 mi..  
Clay slopes with stony outcrops, scattered sagebrush, and grassy draws. Phenology: flowering. 

B. E. Nelson, 56590.  6/10/2002. 		RM 
     with Peter Ebertowski
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3.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: on the divide between Lake and Meadow creeks and to the W, ca 14 air mi NE of Bill; ca 46 air mi NNE of Douglas.  Elev. 4540-4640 ft.
T39N R68W S6 SW1/4; also NW1/4 S7 and T39N R69W SE1/4 S1.  43.3844 N, 105.0706 W; uncertainty 1 mi..  
Clay slopes with scattered sagebrush, greasewood, and grassy areas. Phenology: flowering. 

B. E. Nelson, 56637.  6/11/2002. 		RM 
     with Peter Ebertowski
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4.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: west side of Cow Creek Buttes on an east branch of Coal Draw, ca 14 air mi E of Bill; ca 41 air mi NNE of Douglas.  Elev. 4680-4800 ft.
T38N R68W S13 W1/4; also E1/4 S14.  43.2695 N, 104.9708 W; uncertainty 1 mi..  
Rocky slopes and ridge. Phenology: flowering. 

B. E. Nelson, 56738.  6/11/2002. 		RM 
     with Peter Ebertowski
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5.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: on the divide between Cow Creek and head of Deer Creek W of Cow Creek Buttes, ca 12 air mi ENE of Bill; ca 40 air mi NNE of Douglas.  Elev. 4800-4860 ft.
T38N R68W S9 SE1/4.  43.2839 N, 105.0307 W; uncertainty 0.5 mi..  
Nearly barren clay areas. Phenology: flowering. 

B. E. Nelson, 56758.  6/11/2002. 		RM 
     with Peter Ebertowski
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6.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: 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.  Elev. 4490-4620 ft.
T48N R65W S12 N1/2.  44.1464 N, 104.6108 W; uncertainty 1 mi..  
Clay sagebrush slope with scattered ponderosa pine and Rocky Mountain juniper. Phenology: flowering. 

B. E. Nelson, 56871.  6/13/2002. 		RM 
     with Peter Ebertowski
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7.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Sixmile Basin off Forest Road 918, ca 8.5 air mi SSE of Osage; ca 9 air mi W of Newcastle.  Elev. 4000-4100 ft.
T45N R63W S23 E1/2.  43.8657 N, 104.3896 W; uncertainty 1 mi..  
Clay flats in bottom of basin. Phenology: flowering. 

B. E. Nelson, 57004.  6/13/2002. 		RM 
     with Peter Ebertowski
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8.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: between a tributary of Dugout Creek and the railroad tracks, ca 2.5 air mi E of Wyo Hwy 59, ca 41.5 air mi N of Douglas; ca 9 air mi NNW of Bill.  Elev. 4650-4680 ft.
T39N R71W S13 W1/2.  43.3557 N, 105.3303 W; uncertainty 1 mi..  
Clay "balds". Phenology: flowering. 

B. E. Nelson, 57069.  6/16/2002. 		RM 
     with Peter Ebertowski
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9.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Red Hills ca 0.5-1 air mi WSW of Dugout Bench Mark, ca 46.5 air mi N of Douglas; ca 13 air mi N of Bill.  Elev. 4940-5040 ft.
T40N R70W S26 N1/2.  43.4131 N, 105.2304 W; uncertainty 1 mi..  
Badlands in broad draw below scoria slopes. Phenology: flowering. 

B. E. Nelson, 57078.  6/16/2002. 		RM 
     with Peter Ebertowski
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10.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: tributary of Mule Creek, 6.5 mi SE of Mule Creek Junction on U.S. Hwy 18, ca 36 air mi S of Newcastle; ca 42 air mi NNE of Lusk.  Elev. 4000-4100 ft.
T39N R61W S36 NE1/4.  43.3193 N, 104.1307 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Gently sloping grassland, soils somewhat clayey. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 1008.  7/3/2002. 		RM 
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11.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: on Jenney Trail Road above and N of Lonetree Creek, ca 15 air mi NW of Bill; ca 25 air mi S of Wright.  Elev. 4810-4850 ft.
T40N R72W S36 South1/2.  43.3988 N, 105.4501 W; uncertainty 1 mi..  
Grassland and sagebrush/grassland. Phenology: flowering. 

Peter J. Ebertowski, 108.  6/16/2002. 		RM 
     with B. E. Nelson
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12.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: head of Nicholson Draw on Wyo Hwy 59, ca 5.5 air mi SSE of Wright; ca 33 air mi NNW of Bill.  Elev. 4930-5070 ft.
T43N R72W S23 SE1/4.  43.6859 N, 105.4689 W; uncertainty 0.5 mi..  
Grassland with sandy bowls. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 1435.  7/10/2002. 		RM 
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13.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Phillips Creek near bentonite mine, on dirt road ca 2 mi W of County Road 31, ca 23 air mi NNE of Glenrock; ca 34 air mi NNW of Douglas.  Elev. 5280-5320 ft.
T37N R74W S16 E1/2.  43.1782 N, 105.7476 W; uncertainty 1 mi..  
Sagebrush/grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 1555.  7/11/2002. 		RM 
_________________________________________________________________________

14.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Cow Camp on Buck Creek, off of Forest Road 926, ca 25 air mi E of Wright; ca 41 air mi WSW of Newcastle.  Elev. 4400-4500 ft.
T44N R68W S27 E1/2.  43.7568 N, 105.0101 W; uncertainty 1 mi..  
Broken sandstone pavement. Phenology: flowering. 

Peter J. Ebertowski, 302.  6/20/2002. 		RM 
     with B. E. Nelson
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15.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Hay Creek and vicinity on Mush Creek or County Road 58, ca 27 air mi WSW of Newcastle; ca 21 air mi SSW of Upton.  Elev. 4270-4310 ft.
T44N R66W S12 South1/2.  43.7992 N, 104.7308 W; uncertainty 1 mi..  
Sagebrush/grassland. Phenology: flowering. 

Peter J. Ebertowski, 312.  6/20/2002. 		RM 
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16.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: along Steckley or Forest Road 942 just below Robertson Flat, ca 44.5 air mi N of Douglas; ca 13 air mi NNW of Bill.  Elev. 5000-5050 ft.
T40N R71W S34 SW1/4.  43.3988 N, 105.3702 W; uncertainty 0.5 mi..  
Right of way with adjacent grassland and sagebrush. Phenology: flowering. 

Peter J. Ebertowski, 34.  6/16/2002. 		RM 
     with B. E. Nelson
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17.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: hill and tributary ca 2 air mi N of Mush Creek on County Road 49, ca 16 air mi W of Newcastle; ca 18 air mi SSE of Upton.  Elev. 4140-4230 ft.
T45N R64W S27 NE1/4.  43.8517 N, 104.5303 W; uncertainty 0.5 mi..  
Flat clay patch. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 440.  6/22/2002. 		RM 
_________________________________________________________________________

18.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Antelope Creek on Forest Road 942, ca 28 air mi SE of Wright; ca 16.5 air mi NNE of Bill.  Elev. 4390-4420 ft.
T40N R69W S10 SW1/4.  43.4562 N, 105.1305 W; uncertainty 0.5 mi..  
Clay soils and greasewood. Phenology: flowering. 

Peter J. Ebertowski, 530.  6/24/2002. 		RM 
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19.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: E of Red Hills at terminus of Forest Road 942C, ca 26 air mi SE of Wright; ca 15.5 air mi NNE of Bill.  Elev. 4690-4870 ft.
T40N R70W S13 NE1/4.  43.4418 N, 105.2104 W; uncertainty 0.5 mi..  
Clay with scoria stone. Phenology: flowering. 

Peter J. Ebertowski, 544.  6/24/2002. 		RM 
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20.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: junction of Forest roads 942 and 944, S and above East Logan Draw, ca 26 air mi SSE of Wright; ca 12.5 air mi NNW of Bill.  Elev. 4880-4970 ft.
T40N R70W S31 SW1/4.  43.3988 N, 105.3103 W; uncertainty 0.5 mi..  
Sagebrush/grassland. Phenology: flowering. 

Peter J. Ebertowski, 611.  6/24/2002. 		RM 
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21.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: above Darlington Draw and S of Tepee Benchmark on Forest Road 923, ca 32 air mi E of Wright; ca 34 air mi WSW of Newcastle.  Elev. 4580-4740 ft.
T43N R67W S1 SW1/4.  43.7284 N, 104.8505 W; uncertainty 0.5 mi..  
Sagebrush with sandstone outcrops. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 650.  6/26/2002. 		RM 
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22.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: on a four wheel drive road off Forest Road 944 above and E of Dugout Creek, ca 10 air mi NNW of Bill; ca 43 air mi N of Douglas.  Elev. 4720-4760 ft.
T39N R70W S7 N1/2.  43.37 N, 105.3103 W; uncertainty 1 mi..  
Sandstone ridge with sandy pockets; scattered sagebrush, rabbitbrush, and skunkbush. Phenology: flowering. 

Peter J. Ebertowski, 72.  6/16/2002. 		RM 
     with B. E. Nelson
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23.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: above and S of reservoir in gully leading to Robbers Roost Creek, on Cheyenne River or County Road 54, ca 24 air mi SSW of Newcastle; ca 44 air mi SSE of Upton.  Elev. 3980-4060 ft.
T41N R62W S21 NE1/4.  43.516 N, 104.3119 W; uncertainty 0.5 mi..  
Grassland with sandstone outcrops. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 753.  6/28/2002. 		RM 
_________________________________________________________________________

24.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Thunder Basin National Grassland and Vicinity: Hungry Hollow on Cheyenne River or County Road 6, ca 34 air mi SSW of Newcastle; ca 52 air mi SSE of Upton.  Elev. 3780-3880 ft.
T40N R63W S36 SW1/4.  43.3955 N, 104.3789 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Sagebrush with shaley outcrop. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 777.  6/28/2002. 		RM 
_________________________________________________________________________

25.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: clay balds, on two track W of Keeline or Forest Road 930, ca 20.5 air mi ESE of Wright; ca 45 air mi SSE of Gillette.  Elev. 4530-4740 ft.
T43N R69W S12 NE1/4.  43.7143 N, 105.0899 W; uncertainty 0.5 mi..  
Sagebrush with nearly bare clay patches. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 871.  6/30/2002. 		RM 
_________________________________________________________________________

26.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: Brown Reservoir on Forest Road 911, ca 2 air mi SW of Upton; ca 18 air mi SE of Moorcroft.  Elev. 4300-4400 ft.
T47N R65W S4.  44.0762 N, 104.6711 W.  
Mosaic of sagebrush grassland and grassland with clayey soils. Phenology: flowering. 

Peter J. Ebertowski, 3910.  5/27/2003. 		RM 
_________________________________________________________________________

27.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: 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.  Elev. 3860-4100 ft.
T55N R70W S33 W1/2.  44.7026 N, 105.2785 W.  
Patch in sagebrush grassland with clayey soil. Phenology: flowering. 

Peter J. Ebertowski, 4051.  5/30/2003. 		RM 
_________________________________________________________________________

28.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: hills forming southwest portion of Archie Draw on Forest Road 962, ca 13 air mi ENE of Bill; ca 26 air mi NW of Lance Creek.  Elev. 4750-4850 ft.
T38N R68W S10 E1/2.  43.2839 N, 105.0107 W.  
Wyoming big sagebrush grassland intermixed with yucca. Phenology: flowering. 

Peter J. Ebertowski, 4152.  6/2/2003. 		RM 
_________________________________________________________________________

29.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: grassland S of Middle Creek on County Road 45, ca 18 air mi E of Bill; ca 46 air mi SE of Wright.  Elev. 4450-4500 ft.
T38N R67W S16 E1/2.  43.2695 N, 104.9109 W.  
Clay/silt soil on slope above creek. Phenology: flowering. 

Peter J. Ebertowski, 4185.  6/2/2003. 		RM 
_________________________________________________________________________

30.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: hills N of Calamity Gulch, on dirt road off Wyo Hwy 59, ca 10 air mi NW of Bill; ca 29 air mi S of Wright.  Elev. 4820-4900 ft.
T39N R71W S16 SE1/4.  43.3557 N, 105.3902 W.  
Sagebrush grassland. Phenology: flowering. 

Peter J. Ebertowski, 4204.  6/2/2003. 		RM 
_________________________________________________________________________

31.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge S and E of Patrick Creek and Thornton on County Road 32, ca 7 air mi NW of Upton; ca 13 air mi SE of Moorcroft.  Elev. 4340-4500 ft.
T48N R66W S12 SW1/4.  44.1464 N, 104.7314 W.  
Sagebrush grassland with rocky clay patches. Phenology: flowering. 

Peter J. Ebertowski, 4248.  6/4/2003. 		RM 
_________________________________________________________________________

32.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: slopes surrounding Iron benchmark, on Butcher or County Road 25, ca 8 air mi SE of Upton; ca 5.5 air mi WNW of Osage.  Elev. 4140-4260 ft.
T47N R64W S34 E1/2.  44.006 N, 104.5303 W.  
Clay soil with abundant Gardner's saltbush. Phenology: flowering. 

Peter J. Ebertowski, 4467.  6/8/2003. 		RM 
_________________________________________________________________________

33.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: hills W of Turner Creek, on two-track off of U.S. Hwy 16, ca 8 air mi SE of Upton; ca 5.5 air mi WNW of Osage.  Elev. 4140-4260 ft.
T47N R64W S35 NW1/4.  44.006 N, 104.5102 W.  
Mosaic of sagebrush grassland and clay badlands. Phenology: flowering. 

Peter J. Ebertowski, 4510.  6/8/2003. 		RM 
_________________________________________________________________________

34.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: hills between Philips Draw and Dugout Creek immediately W of train tracks, ca 12 air mi NW of Bill; ca 27 air mi SSE of Wright.  Elev. 4840-5000 ft.
T39N R71W S3 NE1/4.  43.3844 N, 105.3702 W.  
Grassland on gently sloping clayey soil. Phenology: flowering. 

Peter J. Ebertowski, 4665.  6/11/2003. 		RM 
_________________________________________________________________________

35.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: tributary of Spoon Creek, on County Road 49, ca 6 air mi SW of Osage; ca 14 air mi SSE of Upton.  Elev. 4070-4100 ft.
T46N R64W S35 SW1/4.  43.9218 N, 104.5102 W.  
Sagebrush grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 4733.  6/13/2003. 		RM 
_________________________________________________________________________

36.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: Lake Creek on County Road 38, ca 10 air mi NE of Bill; ca 35 air mi SE of Wright.  Elev. 4600-4680 ft.
T39N R69W S23 W1/2.  43.3413 N, 105.1106 W.  
Sagebrush grassland with  yucca patches and clay balds. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 4793.  6/14/2003. 		RM 
_________________________________________________________________________

37.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge and ravines SE of and draining to Horse Creek, on two-track off Cheyenne River or County Road 54, ca 33 air mi SE of Wright; ca 37 air mi SW of Newcastle.  Elev. 4440-4520 ft.
T42N R67W S34 NW1/4.  43.5726 N, 104.8904 W.  
Patches of clayey soil in grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 4939.  6/16/2003. 		RM 
_________________________________________________________________________

38.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: Piney Canyon on Piney Canyon or County Road 69, ca 22 air mi ESE of Wright; ca 48 air mi WSW of Newcastle.  Elev. 4840-5060 ft.
T42N R69W S26.  43.5868 N, 105.1098 W.  
Edge of clay bald. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 4946.  6/16/2003. 		RM 
_________________________________________________________________________

39.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: low area just above and between Lonetree and Beaver creeks, on Upton - Fairview or County Road 59, ca 3.5 air mi S of Upton; ca 25 air mi NW of Newcastle.  Elev. 4200 ft.
T47N R65W S15 SE1/4.  44.0481 N, 104.651 W.  
Roadside, along sagebrush grassland with scattered greasewood. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5081.  6/18/2003. 		RM 
_________________________________________________________________________

40.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: ridge immediately NE of Beaver Creek, on Upton - Fairview or County Road 59, ca 3 air mi S of Upton; ca 25 air mi NW of Newcastle.  Elev. 4240-4340 ft.
T47N R65W S15 NE1/4.  44.0481 N, 104.651 W.  
Sagebrush grassland with rocky clay patches. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5100.  6/18/2003. 		RM 
_________________________________________________________________________

41.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Crook County: Thunder Basin National Grassland and Vicinity: hills E of West Fork Wind Creek, off U.S. Hwy 16, ca 10 air mi SE of Moorcroft; ca 10 air mi NW of Upton.  Elev. 4280-4380 ft.
T49N R66W S33 SE1/4.  44.1781 N, 104.7912 W.  
Grassland with scattered sagebrush and greasewood. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5148.  6/18/2003. 		RM 
_________________________________________________________________________

42.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: hills S of Buzzard Creek, on two-track off Keeline or Forest Road 930, ca 22 air mi E of Wright; ca 47 air mi SSE of Gillette.  Elev. 4520-4620 ft.
T43N R68W S20.  43.6859 N, 105.05 W.  
Patches of clay in sagebrush grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5407.  6/23/2003. 		RM 
_________________________________________________________________________

43.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: flat off Wyo Hwy 59, ca 1.7 air mi NW of Bill; ca 35 air mi N of Douglas.  Elev. 4730-4760 ft.
T38N R70W S20.  43.2552 N, 105.2903 W.  
Outer limit of playa. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5429.  6/27/2003. 		RM 
_________________________________________________________________________

44.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: North Fork Bear Creek and evirons, on Jenne Trail or County Road 34, ca 19 air mi WNW of Bill; ca 33 air mi SSW of Wright.  Elev. 5050-5080 ft.
T38N R73W S5 E1/2.  43.2923 N, 105.6486 W.  
Flat clay patch in sagebrush grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5496.  6/27/2003. 		RM 
_________________________________________________________________________

45.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland and Vicinity: hills N of Cheyenne River on County Road 55, ca 39 air mi ESE of Wright; ca 34 air mi SW of Newcastle.  Elev. 4240-4400 ft.
T41N R66W S3 SE1/4.  43.5585 N, 104.7707 W.  
Slopes of breaks. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5777.  7/1/2003. 		RM 
_________________________________________________________________________

46.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Thunder Basin National Grassland and Vicinity: low hills N of Little Thunder Creek and Hansen Draw, on gravel road near gas processing plant, ca 21 air mi E of Wright; ca 44 air mi W of Newcastle.  Elev. 4560-4700 ft.
T43N R69W S24.  43.6859 N, 105.0899 W.  
Clay badlands. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 5815.  7/1/2003. 		RM 
_________________________________________________________________________

47.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Thunder Basin National Grassland and Vicinity: washes W of and draining to Bobcat Creek, on Forest Road 958, ca 10 air mi E of Bill; ca 37 air mi NNE of Douglas.  Elev. 4600-4680 ft.
T38N R68W S30 SE1/4.  43.2408 N, 105.0706 W.  
Edge of clay bald in sagebrush grassland. Phenology: flowering & fruiting. 

Peter J. Ebertowski, 6069.  7/5/2003. 		RM 
_________________________________________________________________________

48.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: ca 4 air mi NW of junction of Wyo Hwy 487 and Wyo Hwy 220.  Elev. 5480-5500 ft.
T32N R82W S33.  42.7006 N, 106.6687 W.  
Shale hills and sandy areas and badlands. Phenology: flowering. 

Ronald L. Hartman, 57414.  6/11/1997. 		RM 
     with Amy J. Roderick and Cherie Winner
_________________________________________________________________________

49.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Emigrant Gap Ridge, ca 12 air mi W of Casper.  Elev. 5548-5580 ft.
T33N R81W S4 E1/4.  42.8533 N, 106.5578 W; uncertainty 1 mi..  
Sandstone outcrops and sandy slopes; sagebrush-grasslands. Phenology: flowering & fruiting. 

Ronald L. Hartman, 38025.  6/23/1993. 		RM 598569	Barcode: RM0306822
_________________________________________________________________________

50.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Poison Spider Oil Field, ca 24 air mi W of Casper.  Elev. 5700-5900 ft.
T33N R83W S3 NE1/4.  42.8615 N, 106.7752 W; uncertainty 0.5 mi..  
Sandy slopes and flats with sandstone outcrops in uplands with ponderosa pine. Phenology: flowering & fruiting. 

Ronald L. Hartman, 38208.  6/23/1993. 		RM 598570	Barcode: RM0307059
_________________________________________________________________________

51.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 3 air mi SSE of Powder River and ca 1 air mi NW of Middle Fork Casper Creek crossing.  Elev. 5890-5910 ft.
T35N R85W S24.  42.98972 N, 106.97722 W; uncertainty 1 mi..  
Sandy plains and white sandstone monuments. Phenology: flowering & fruiting. 

Ronald L. Hartman, 38373.  6/24/1993. 		RM 598571	Barcode: RM0307058
_________________________________________________________________________

52.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: north end of Pine Mountain.  Elev. 6200-6600 ft.
T35N R84W S26 N1/2; also NE1/4 S27, SE1/4 S23.  42.9779 N, 106.88 W; uncertainty 2 mi..  
Ponderosa pine rimmed mesa. Phenology: flowering & fruiting. 

Ronald L. Hartman, 38397.  6/24/1993. 		RM 598572	Barcode: RM0307057
_________________________________________________________________________

53.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Wyoming Game and Fish Access area along the North Platte River in vicinity of Carey, ca 10 air mi E of Glenrock.  Elev. 4927 ft.
T33N R73W S6 W1/2.  42.8568 N, 105.6681 W; uncertainty 0.5 mi..  
River margin and sandy flats and slopes. Phenology: flowering & fruiting. 

Ronald L. Hartman, 38793.  6/27/1993. 		RM 598573	Barcode: RM0306766
_________________________________________________________________________

54.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: breaks on south side of the North Platte River, ca 9 mi NW of Douglas.  Elev. 4900-5200 ft.
T33N R72W S16 W1/2; also E1/2 S17.  42.83139 N, 105.516 W; uncertainty 1 mi..  
Sandy slopes and flats; grasslands with areas of sagebrush. Phenology: flowering & fruiting. 

Ronald L. Hartman, 38861.  6/27/1993. 		RM 598574	Barcode: RM0306767
_________________________________________________________________________

55.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 11 air mi WSW of Edgemont and 2-2.5 mi S of U.S. Hwy 18.  Elev. 3200 ft.
T9S R1E S18 N1/2.  43 16.29' N, 104 3.34' W; GPS Reading.  
Shale slopes and draw bottom. Phenology: flowering. 

Grace M. Kostel, 1942.  6/11/2004. 		RM 957418	Barcode: RM0209939
_________________________________________________________________________

56.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 12 air mi SSW of Edgemont in drainage 1 mi S of Hay Draw.  Elev. 1250 ft.
T10S R2E S34 SW1/4.  43 8.1' N, 103 53.65' W; GPS Reading.  
Clay soil. Phenology: flowering & fruiting. 

Grace M. Kostel, 2023.  6/11/2004. 		RM 957404	Barcode: RM0209943
_________________________________________________________________________

57.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 23.5-24 air mi SW of Edgemont at the three state corner of Nebraska, South Dakota and Wyoming in Indian Creek.  Elev. 3100 ft.
T12S R1E S18 W1/2; W1/2 S8..  43 59.39' N, 104 2.15' W; GPS Reading.  
In dry creek bottom. Phenology: flowering. 

Grace M. Kostel, 2095.  6/12/2004. 		RM 957403	Barcode: RM0209942
_________________________________________________________________________

58.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 10 air mi WNW of Edgemont.  Elev. 3100 ft.
T8S R1E S9 SW1/4.  43.3641 N, 104.0061 W; GPS Reading.  
In sand and gravel soils of roadside. Phenology: flowering. 

Grace M. Kostel, 4602.  10/15/2003. 		RM 957402	Barcode: RM0209941
_________________________________________________________________________

59.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: S of U.S. Hwy 18, ca 5 air mi WSW of Edgemont.  Elev. 3250 ft.
T9S R1E S12 E1/2.  43.2895 N, 103.9596 W to 43.2842 N, 103.9604 W; GPS Reading.  
Grassy upland area around draws. Phenology: flowering. 

Grace M. Kostel, 461.  5/21/2004. 		RM 957409	Barcode: RM0209931
     with B. E. Nelson
_________________________________________________________________________

60.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: on Forest Road 7009, 16 air mi W of Ardmore and 10 air mi SW of Edgemont.  Elev. 3800-3970 ft.
T12S R1E S25 SW1/4.  43.0331 N, 103.9701 W to 43.0361 N, 103.9684 W; GPS Reading.  
Upslopes and hilltop of silt. Phenology: flowering. 

Grace M. Kostel, 597.  5/25/2004. 		RM 957408	Barcode: RM0209930
     with B. E. Nelson
_________________________________________________________________________

61.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 9 - 9.5 air mi WSW of Edgemont and 1.5 mi W of County Road 8.  Elev. 3950-4000 ft.
T9S R1E S9.  43 16' 58" N, 104 0' 24" W; GPS Reading.  
Draw sides and slopes. Phenology: flowering. 

Grace M. Kostel, 692.  5/28/2004. 		RM 957407	Barcode: RM0209929
_________________________________________________________________________

62.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 12 air mi WSW of Edgemont on ridge down to dam.  Elev. 3800-4000 ft.
T9S R1E S30 SW1/4.  43 13' 58" N, 104 2' 53" W; GPS Reading.  
Shale bank draw. Phenology: flowering. 

Grace M. Kostel, 710.  5/28/2004. 		RM 957406	Barcode: RM0209928
_________________________________________________________________________

63.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 36 air mi NW of Crawford and 1/4 mi E of Wyoming and W of Forest Road 917.  Elev. 3900-4000 ft.
T34N R57W S9 E1/2.  42.9356 N, 104.048 W to 42.9345 N, 104.052 W; GPS Reading.  
In clay draw with silty banks. Phenology: flowering. 

Grace M. Kostel, 860.  5/29/2004. 		RM 957405
_________________________________________________________________________

64.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Nebraska, Sioux County: Oglala National Grassland and Vicinity: ca 15 air mi SE of Ardmore, South Dakota.  Elev. 3857 ft.
T35N R52W S35 NE1/4.  42 58.35' N, 103 31.51' W; GPS Reading.  
At base and ridge top of eroded limestone banks in clay soils. Phenology: flowering. 

Grace M. Kostel, 5576.  6/6/2005. 		RM 957357
_________________________________________________________________________

65.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Wetlands and Adjacent Areas: North Fork Crazy Woman Creek, ca 14 mi S of Buffalo.  Elev. 4536 ft.
T48N R82W S36 SW1/4 of SW1/4.  44.08334 N, 106.66669 W; GPS Reading.  
Dry Sarcobatus/Artemisia scrub uplands. Phenology: flowering & fruiting. 

Rachel Newton, 3920.  6/1/2006. 		RM 
_________________________________________________________________________

66.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Wetlands and Adjacent Areas: Dead Horse Creek, ca 14 air mi W of Midwest.  Elev. 5237 ft.
T39N R81W S13 N1/2.  43.35279 N, 106.51891 W; GPS Reading.  
Along dry creek bed and uplands Phenology: flowering & fruiting. 

Rachel Newton, 4114.  6/3/2006. 		RM 
_________________________________________________________________________

67.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Wetlands and Adjacent Areas: Camel Hump Reservoir, ca 16 mi WSW of Midwest.  Elev. 5375 ft.
T39N R81W S27 SE1/4.  43.31793 N, 106.54897 W; GPS Reading.  
Along dry, disturbed uplands. Phenology: flowering & fruiting. 

Rachel Newton, 4132.  6/3/2006. 		RM 
_________________________________________________________________________

68.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Wetlands and Adjacent Areas: creek-fed lake, ca 19 air mi SW of Midwest.  Elev. 5373 ft.
T39N R81W S16 SW1/4.  43.25787 N, 106.58508 W; GPS Reading.  
Dry hillsides. Phenology: flowering & fruiting. 

Rachel Newton, 4158.  6/3/2006. 		RM 
_________________________________________________________________________

69.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Wetlands and Adjacent Areas: dried up lake, ca 16 air mi WSW of Midwest.  Elev. 5263 ft.
T39N R81W S21 NE1/4 of NE1/4.  43.33866 N, 106.56427 W; GPS Reading.  
Dried lake bottom and surrounding uplands. Phenology: flowering & fruiting. 

Rachel Newton, 4232.  6/5/2006. 		RM 
_________________________________________________________________________

70.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Wetlands and Adjacent Areas: small pond, ca 21 air mi W of Midwest.  Elev. 5239 ft.
T39N R82W S24 NW1/4.  43.33934 N, 106.6199 W; GPS Reading.  
Dry, grazed uplands. Phenology: flowering & fruiting. 

Rachel Newton, 4256.  6/5/2006. 		RM 
_________________________________________________________________________

71.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Wetlands and Adjacent Areas: Little Thunder Reservoir, ca 7 air mi SE of Wright.  Elev. 4741 ft.
T43N R71W S22 NW1/4.  43.69099 N, 105.37715 W; GPS Reading.  
Dry Artemisia scrub uplands. Phenology: flowering & fruiting. 

Rachel Newton, 4339.  6/7/2006. 		RM 
_________________________________________________________________________

72.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Wetlands and Adjacent Areas: confluence of Lodgepole and Lone Tree creeks, ca 34 air mi E of Wright.  Elev. 4320 ft.
T44N R66W S16 W1/2.  43.7894 N, 104.79559 W; GPS Reading.  
Dry creek bed and uplands. Phenology: flowering & fruiting. 

Rachel Newton, 4407.  6/7/2006. 		RM 
_________________________________________________________________________

73.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Wetlands and Adjacent Areas: Powder River, ca 17 air mi E of Kaycee.  Elev. 4387 ft.
T43N R79W S14 SW1/4.  43.69434 N, 106.32182 W; GPS Reading.  
Dry sandy uplands in praire dog town. Phenology: flowering & fruiting. 

Rachel Newton, 5012.  6/17/2006. 		RM 
_________________________________________________________________________

74.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Wetlands and Adjacent Areas: Fourmile Creek, ca 9.5 air mi NE of Kaycee.  Elev. 4831 ft.
T45N R80W S31 SE1/4.  43.8201 N, 106.51458 W; GPS Reading.  
Dry Artemisia scrub uplands. Phenology: flowering & fruiting. 

Rachel Newton, 5050.  6/17/2006. 		RM 
_________________________________________________________________________

75.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Ca 10 mi E of Sand Draw Oil Field and 40 mi SE of Riverton.  Elev. 6000 ft.
T32N R94W S22.  42.7352 N, 108.058 W; NAD 83, uncertainty 3 mi., Digital Map.  
Moist hillsides. Phenology: flowering. 

C. L. Porter, 4967.  7/6/1949. 		RM 215132	Barcode: RM0307036
_________________________________________________________________________

76.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Bates Hole: SE of Alcova on Casper-Medicine Bow Road.  Elev. 6400 ft.
T28N R80W S3.  42.4244 N, 106.4012 W; NAD 83, uncertainty 2 mi., Digital Map.  
Sagebrush-grassland, dry, clayey soil. *field book Phenology: flowering & fruiting. 

C. L. Porter, 7763.  6/15/1959. 		RM 260308	Barcode: RM0306798
     with Marjorie W. Porter
_________________________________________________________________________

77.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Roger's Mtn. Formation.  Elev. 6300-6430 ft.
T33N R94W S17.  
Western most extension, ridge, and high point. Phenology: flowering. 

Albert G. Foster, 150.  6/30/1995. 		RM 734047	Barcode: RM0306809
_________________________________________________________________________

78.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Powder River: the Devils Kitchen.  Elev. 5900 ft.
T36N R86W S36.  43.04861 N, 107.095 W; uncertainty 2 mi..  
Saline clays. *Acre. Phenology: flowering & fruiting. 

Aven Nelson, 9374.  6/28/1910. 		RM 79510	Barcode: RM0306799
_________________________________________________________________________

79.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 2 mi N of Bill.  Elev. 4700 ft.
T38N R70W S20.  
Phenology: flowering & fruiting. 

C. S. Gilbert, 57-172.  6/24/1957. 		RM 392360	Barcode: RM0306806
     with Harold F. Eppson
_________________________________________________________________________

80.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Along Nowood Road; ca 6 mi NE of Lysite; NE of Lost Cabin.  Elev. 5600 ft.
T39N R90W S27.  43.3217 N, 107.6289 W; uncertainty 1 mi..  
Phenology: flowering & fruiting. 

Erwin F. Evert, 2903.  6/27/1981. 		RM 341589	Barcode: RM0306779
_________________________________________________________________________

81.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Lysite Badlands: Pony Creek #1 gas line site just W of Moneta-Lysite Road, 3.3 road mi N of Moneta.  Elev. 5700 ft.
T37N R91W S1 W1/2.  43.2076 N, 107.7081 W; uncertainty 1 mi..  
Near sandstone outcrops on slope above wash. Phenology: flowering & fruiting. 

Hollis Marriott, 10085.  6/16/1986. 		RM 382648	Barcode: RM0306775
_________________________________________________________________________

82.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County:   Elev. 4800 ft.
T45N R70W S3; also S4.  43.9091 N, 105.2554 W; uncertainty 2 mi..  
Grassy plains, Phenology: flowering & fruiting. 

Mary Alice Sanguinetti, 410.  7/13/1978. 		RM 325232	Barcode: RM0306778
     with Keith H. Dueholm
_________________________________________________________________________

83.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Near Cottonwood Creek.  Elev. 4700 ft.
T43N R76W S26.  43.67111 N, 105.9575 W; uncertainty 1 mi..  
Grassy plains. Phenology: flowering & fruiting. 

Mary Alice Sanguinetti, 461.  7/14/1978. 		RM 325233	Barcode: RM0306777
     with Keith H. Dueholm
_________________________________________________________________________

84.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along Wyo Hwy 272 (North Lance Creek Road), ca 1.5 mi N of town of Cow Creek.  Elev. 4200 ft.
T38N R65W S14.  43.2667 N, 104.622 W; NAD 83, uncertainty 700 ft., Nat. Geog. TOPO!.  
Sandy soil, with Bouteloua, Stipa, and Bromus in sandstone badlands. Phenology: flowering. 

Neil Snow, 4458.  6/13/1989. 		RM 566334	Barcode: RM0306780
     with Gregory K. Brown and T. M. Evans
_________________________________________________________________________

85.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 10 mi NW of Glenrock.  Elev. 5100 ft.
T35N R76W S27.  42.9751 N, 105.9589 W; uncertainty 2 mi..  
Plains; sand and gumbo flats. Common. *Service. Phenology: flowering & fruiting. 

Paul L. Ginter, 832.  6/28/1943. 		USFS 402365	Barcode: USFS0071999
_________________________________________________________________________

86.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Great Divide Basin and Adjacent Regions: Hells Half Acre.  Elev. 6000 ft.
T36N R86W S36.  43.04861 N, 107.095 W; uncertainty 2 mi..  
Collected in the erosional badlands on argisol substrate. Phenology: flowering & fruiting. 

Robert J. Hill, 607.  6/30/1973. 		RM 391734	Barcode: RM0306801
_________________________________________________________________________

87.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: On Atlantic City-Hudson Road just E of Beaver Creek.  Elev. 5500 ft.
T32N R96W S29.  42.7173 N, 108.3365 W; uncertainty 1 mi..  
West facing slopes. Phenology: flowering. 

Richard W. Scott, 9281.  6/30/1995. 		RM 610331	Barcode: RM0306781
_________________________________________________________________________

88.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 6 mi SE of Natrona.  Elev. 5500 ft.
T35N R82W S17 W1/2.  43.0043 N, 106.7063 W; uncertainty 1 mi..  
Clay flat with Xylorhiza and Astragalus bisulcatus. Phenology: flowering & fruiting. 

Robert D. Dorn, 5214.  6/21/1991. 		RM 566755	Barcode: RM0306802
_________________________________________________________________________

89.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Platte River Basin: Emigrant Gap Ridge, ca 1 air mi SW of Emigrant Gap, ca 12 air mi W of Casper.  Elev. 5460-5600 ft.
T33N R81W S9 SW1/4 of SE1/4; also NE1/4 S16.  42.8438 N, 106.5686 W; uncertainty 1 mi..  
Elymus smithii-Artemisia community on silty shale deposits on lower slopes. Phenology: flowering. 

Walter Fertig, 13774.  6/4/1993. 		RM 601808	Barcode: RM0306804
_________________________________________________________________________

90.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: East Wind River Basin: badlands, ca 1.5 air mi E of Hells Half Acre, on north side of U.S. Hwy 20/26, ca 40 air mi WNW of Casper.  Elev. 5900-6000 ft.
T36N R85W S31 SE1/4; also W1/2 S32.  43.0483 N, 107.0775 W; uncertainty 1 mi..  
Badland slopes and ridges of tilted bands of multicolored sediments; with Wyoming big sagebrush, winterfat, rabbitbrush, and Junegrass. Phenology: flowering. 

Walter Fertig, 13903.  6/14/1993. 		RM 601814	Barcode: RM0306803
_________________________________________________________________________

91.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southeast Rattlesnake Range: ca 2 mi E of Ryan Hill on slopes on north side of Alcova Peak.  Elev. 6100-6300 ft.
T31N R83W S15 W1/2.  42.6569 N, 106.767 W; uncertainty 1 mi..  
Sandstone bluffs and sandy dry washes on south facing eroded slopes of hogback ridges E of mesa. Phenology: flowering & fruiting. 

Walter Fertig, 14083.  7/12/1993. 		RM 601925	Barcode: RM0306805
_________________________________________________________________________

92.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: flats on north side of Cedar Ridge; ca 0.5 mi S of Badwater Road; ca 2.5 mi S of Copper Mountain.  Elev. 5600 ft.
T39N R92W S15 South1/2 of NW1/4.  43.3493 N, 107.8648 W; uncertainty 0.5 mi..  
Ashy-clay whitish flats and low hills, often with surface layer of chert or sandstone gravel; community of patches of Artemisia pedatifida, A. porteri, A. longifolia or Atriplex gardneri; vegetative cover 0-25%. Phenology: flowering. 

Walter Fertig, 16622.  6/13/1996. 		RM 633167	Barcode: RM0306810
_________________________________________________________________________

93.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Sweetwater River Plateau/Wind River Basin: toe of Beaver Rim, near head of tributary draw of Coyote Creek; ca 1.5 air mi Sof Wild Horse Springs; ca 2.5 mi ENE of Mud Springs.  Elev. 6900 ft.
T32N R90W S30 SW1/4 of NE1/4.  42.715 N, 107.6496 W; uncertainty 0.25 mi..  
Southwest-facing reddish siltstone-clay ridges below outcrops of gray clay-shale on steep (35-50%) slopes; cushion plant/bunchgrass community of Phlox muscoides, Arenaria hookeri, and Elymus spicatus, with scattered Chrysothamnus viscidiflorus. Phenology: fruiting. 

Walter Fertig, 17688.  7/11/1997. 		RM 682322	Barcode: RM0306808
     with Laura Welp
_________________________________________________________________________

94.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: West side of Ocean Lake.  Elev. 5234 ft.
T3N R2E S33; also S34.  43.193 N, 108.6461 W; uncertainty 2 mi..  
Sagebrush grassland. Phenology: flowering. 

June Haines, 4116.  6/11/1985. 		RM 387373	Barcode: RM0306774
_________________________________________________________________________

95.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Gas Hills Mining District; ca 4.2 air mi SSW of intersection of Gas Hills Road (Wyo 136) with Ore Road (main road through Gas Hills mining district).  Elev. 6880 ft.
T32N R90W S17; also S18.  42.7443 N, 107.6321 W; uncertainty 2 mi..  
Sagebrush grasslands. Phenology: flowering & fruiting. 

June Haines, 4169.  6/18/1985. 		RM 387374	Barcode: RM0306773
_________________________________________________________________________

96.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: South Fork Sand Creek, ca 7 1/4 air mi of Lost Cabin.  Elev. 5920 ft.
T38N R89W S11; also S14.  43.2789 N, 107.4904 W; uncertainty 2 mi..  
Sandy, rocky area. Phenology: flowering. 

June Haines, 6091.  6/1/1986. 		RM 387375	Barcode: RM0306772
     with Georgia Haines
_________________________________________________________________________

97.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Chalk Hills Draw: ca 10 air mi SE of Moneta on Castle Gardens Road.  Elev. 5710-5790 ft.
T35N R91W S11.  43.0189 N, 107.7095 W; uncertainty 1 mi..  
Draw and badlands; sagebrush grassland and badland slopes and bottoms. Phenology: flowering. 

June Haines, 6193.  6/6/1986. 		RM 387376	Barcode: RM0306771
_________________________________________________________________________

98.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Flats across U.S. Hwy 26 from Paradise Valley Road; ca 6 air mi WNW of Riverton.  Elev. 5300 ft.
T1N R3E S11; also S14.  43.0772 N, 108.4883 W; uncertainty 2 mi..  
Sagebrush grassland and badland slopes and bottoms. Phenology: flowering. 

June Haines, 6515.  6/15/1986. 		RM 387377	Barcode: RM0306770
     with Georgia Haines
_________________________________________________________________________

99.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Flats across U.S. Hwy 26 from Haines Farm; ca 9 mi W of Riverton on U.S. Hwy 26.  Elev. 5280 ft.
T1N R3E S4.  43.0916 N, 108.5277 W; uncertainty 1 mi..  
Sagebrush grassland and badland slopes and bottoms. 

June Haines, 6552.  6/17/1986. 		RM 387378	Barcode: RM0306769
_________________________________________________________________________

100.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 6 mi SE of Natrona.  Elev. 5500 ft.
T35N R82W S17 W1/2.  43.0043 N, 106.7063 W; uncertainty 1 mi..  
Clay flat with Xylorhiza and Astragalus bisulcatus. Phenology: flowering & fruiting. 

Robert D. Dorn, 5214.  6/21/1991. 		RM 566755
_________________________________________________________________________

101.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Emigrant Gap Ridge, ca 3.5 air mi S of U.S. Hwy 20/26; ca 14.8 mi WNW of Casper.  Elev. 5700 ft.
T34N R82W S23; also S24.  42.9022 N, 106.6473 W.  
Barren, saline ridge with scattered Artemisia pedatifida. Phenology: flowering. 

Amy J. Roderick, 3917.  5/24/1998. 		RM 
_________________________________________________________________________

102.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Poison Spring Creek at Oregon Trail or County Road 319, ca 11.5 air mi N of Alcova townsite.  Elev. 5600-5700 ft.
T32N R82W S29 NE1/4.  42.7152 N, 106.6884 W.  
Gravelly sagebrush slope; Artemisia pedatifida and Atriplex confertifolia common. Phenology: flowering. 

Amy J. Roderick, 4657.  6/10/1998. 		RM 
_________________________________________________________________________

103.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Wind River Basin: Rattlesnake Mountains: Garfield Peak and northeast slope.  Elev. 7000-8244 ft.
T33N R87W S33; also S34.  42.7889 N, 107.2725 W; uncertainty 2 mi..  
Sandstones, shales, and limestone on lower slopes with granite above, streambanks, open slopes, and limber pine woodlands. Phenology: flowering & fruiting. 

Gael Fonken, 1319.  6/26/1981. 		RM 387386	Barcode: RM0306814
     with Ronald L. Hartman
_________________________________________________________________________

104.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: west side of Ocean Lake.  Elev. 5234-5283 ft.
T3N R2E S33; also S34.  43.193 N, 108.6461 W.  
Sagebrush grassland. 

June Haines, 4116.  6/11/1985. 		RM 
_________________________________________________________________________

105.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: Gas Hills Mining District: ca 4.2 air mi SSW of intersection of Gas Hills Road (Wyo Hwy 136) with Ore Road (main road through Gas Hills Mining District).  Elev. 6880-6950 ft.
T32N R90W S17; also S18.  42.7443 N, 107.6321 W.  
Sagebrush grassland. 

June Haines, 4169.  6/18/1985. 		RM 
_________________________________________________________________________

106.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: South Fork Sand Creek, ca 7 1/4 air mi E of Lost Cabin.  Elev. 5920-6000 ft.
T38N R89W S11; also S14.  43.2789 N, 107.4904 W; uncertainty 2 mi..  
Sandy, rocky area. 

June Haines, 6091.  6/1/1986. 		RM 
     with Georgia Haines
_________________________________________________________________________

107.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Chalk Hills Draw: ca 10 air mi SE of Moneta on Castle Gardens Road.  Elev. 5710-5790 ft.
T35N R91W S11.  43.0189 N, 107.7095 W; uncertainty 1 mi..  
Sagebrush grassland and badland slopes and bottoms. 

June Haines, 6193.  6/6/1986. 		RM 
_________________________________________________________________________

108.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Flats, across U.S. Hwy 26 from Paradise Valley Road, ca 6 air mi WNW of Riverton.  Elev. 5300-5600 ft.
T1N R3E S11; also S14.  43.0772 N, 108.4883 W; uncertainty 2 mi..  
Sagebrush grassland and badland slopes and bottoms. 

June Haines, 6515.  6/15/1986. 		RM 
     with Georgia Haines
_________________________________________________________________________

109.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: flats, across U.S. Hwy 26 from Haines farm, ca 9 air mi W of Riverton.  Elev. 5280-5340 ft.
T1N R3E S4.  43.0916 N, 108.5277 W.  
Sagebrush grassland and badland slopes and bottoms. 

June Haines, 6552.  6/17/1986. 		RM 
_________________________________________________________________________

110.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: flats, across highway from Haines farm, ca 9 mi W of Riverton on U.S. Hwy 26.  Elev. 5280 ft.
T1N R3E S4.  43.0916 N, 108.5277 W.  
Sagebrush grassland and badland slopes and bottoms. Phenology: flowering. 

June Haines, 7161.  6/21/1987. 		RM 785176	Barcode: RM0306749
     with Georgia Haines
_________________________________________________________________________

111.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: W of Ocean Lake, ca 6 air mi WSW of Midvale.  Elev. 5260-5280 ft.
T2N R2E S34.  43.1061 N, 108.6264 W; uncertainty 1 mi..  
Sagebrush grassland. Phenology: flowering. 

June Haines, 7163.  6/21/1987. 		RM 785179	Barcode: RM0306752
     with Georgia Haines
_________________________________________________________________________

112.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: east side of Ocean Lake, ca 3 air mi SW of Midvale.  Elev. 5260-5270 ft.
T2N R3E S31.  43.196 N, 108.866 W; uncertainty 1 mi..  
Sagebrush grassland. Phenology: flowering & fruiting. 

June Haines, 7169.  6/21/1987. 		RM 785178	Barcode: RM0306751
     with Georgia Haines
_________________________________________________________________________

113.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 20 air mi SE of Reno Junction.  Elev. 5000 ft.
T42N R69W S31 E1/2.  43.5728 N, 105.1911 W; uncertainty 1 mi..  
Gently rolling sagebrush plain, eroded slopes with coal outcrops and sand, scoria outcrops; slopes. Phenology: flowering. 

Keith H. Dueholm, 11336.  6/7/1981. 		RM 523646	Barcode: RM0306851
_________________________________________________________________________

114.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Junction of Buckman Road and Natrona County Road 114, ca 29 air mi NW of Casper.  Elev. 5500 ft.
T38N R81W S31.  43.2172 N, 106.6144 W; uncertainty 1 mi..  
Broad shaley loam ridge and drainages; ridge. Phenology: flowering & fruiting. 

Keith H. Dueholm, 11911.  6/10/1985. 		RM 523960	Barcode: RM0306846
_________________________________________________________________________

115.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 29 air mi NW of Casper.  Elev. 5700 ft.
T37N R82W S14 N1/2 of SW1/4.  43.1733 N, 106.6533 W; uncertainty 1 mi..  
East-west divide, with gently sloping, shaley plains, steep, eroded, shaley north-facing slope of divide, small flat-topped butte, and drainages on slope and shallow drainage on plains; plains. Phenology: flowering & fruiting. 

Keith H. Dueholm, 11946.  6/12/1985. 		RM 523959	Barcode: RM0306850
_________________________________________________________________________

116.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Powder River Basin: Wyo Hwy 59, at crossing of S Fork of the Cheyenne River.  Elev. 4600 ft.
T39N R71W S35.  43.3117 N, 105.3458 W; uncertainty 1 mi..  
Rolling plains, highway right-of-way; plains along right-of-way. Phenology: flowering. 

Keith H. Dueholm, 1685.  6/3/1978. 		RM 325224	Barcode: RM0306844
     with Ronald L. Hartman
_________________________________________________________________________

117.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Powder River Basin: ca 13 air mi NE of Bill.  Elev. 4500 ft.
T40N R69W S33.  43.4011 N, 105.1453 W; uncertainty 1 mi..  
Plains and flats along draw; plains. Phenology: flowering & fruiting. 

Keith H. Dueholm, 2239.  6/20/1978. 		RM 325223	Barcode: RM0306845
     with Ronald L. Hartman and Mary Alice Sanguinetti.
_________________________________________________________________________

118.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 15.5 mi ESE of Reno Junction.  Elev. 4500 ft.
T43N R69W S29; also S30.  43.6728 N, 105.1725 W; uncertainty 2 mi..  
Sagebrush plains, ponderosa pine covered slopes, sandstone outcrops; slope. Phenology: flowering & fruiting. 

Keith H. Dueholm, 2337.  6/20/1978. 		RM 325237	Barcode: RM0306852
     with Ronald L. Hartman and Mary Alice Sanguinetti.
_________________________________________________________________________

119.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Black Butte, ca 9 air mi SSE of Reno Junction.  Elev. 5000 ft.
T42N R71W S5; also S6 and T43N R71W S32.  43.6433 N, 105.4122 W; uncertainty 2 mi..  
Heavily grazed plains and butte, eroded slopes, small holding pond; slopes. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3228.  6/29/1978. 		RM 325235	Barcode: RM0306853
_________________________________________________________________________

120.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Powder River Basin: N of Betty Reservoir.  Elev. 4700 ft.
T40N R72W S35.  43.3986 N, 105.4636 W; uncertainty 1 mi..  
Flats and stream outlet; flats. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3268.  7/5/1978. 		RM 325225	Barcode: RM0306837
     with Mary Alice Sanguinetti
_________________________________________________________________________

121.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: Wild Horse Creek and Clarkelen Road.  Elev. 4800 ft.
T46N R73W S32; also S33.  43.9178 N, 105.6583 W; uncertainty 2 mi..  
Flats near creek; plains. Phenology: flowering & fruiting. 

Keith H. Dueholm, 3383.  7/5/1978. 		RM 325227	Barcode: RM0306839
     with Mary Alice Sanguinetti
_________________________________________________________________________

122.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: along Cottonwood Creek, ca 1.5 air mi NNE of Adon.  Elev. 3900 ft.
T53N R70W S36.  44.53306 N, 105.22139 W; uncertainty 1 mi..  
Eroded plain and flats along creek, gravel roadside; flats, plains. Phenology: fruiting. 

Keith H. Dueholm, 4619.  7/23/1978. 		RM 325226	Barcode: RM0306838
_________________________________________________________________________

123.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: along Willow Creek, ca 3 air mi NW of North Pumpkin Butte.  Elev. 4700 ft.
T44N R76W S8.  43.8 N, 106.0156 W; uncertainty 1 mi..  
Plains, flats along creek, eroded banks; flats. Phenology: flowering & fruiting. 

Keith H. Dueholm, 5267.  7/29/1978. 		RM 325222	Barcode: RM0306849
_________________________________________________________________________

124.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 7.5 air mi SE of Kaycee.  Elev. 4700 ft.
T42N R81W S10; also S15.  43.6217 N, 106.5652 W; uncertainty 2 mi..  
Sagebrush plain on clay, draws; plains. Phenology: flowering. 

Keith H. Dueholm, 6558.  6/5/1979. 		RM 333986	Barcode: RM0306854
_________________________________________________________________________

125.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: ca 10 air mi NE of Kaycee.  Elev. 4600 ft.
T45N R80W S29.  43.84 N, 106.4975 W; uncertainty 1 mi..  
Rolling plains. Phenology: flowering. 

Keith H. Dueholm, 6660.  6/5/1979. 		RM 333973	Barcode: RM0306843
_________________________________________________________________________

126.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Powder River Basin: ca 1.5 air mi E of Redbird.  Elev. 3900 ft.
T38N R62W S26.  43.2464 N, 104.264 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Sagebrush grassland on clay plains, shallow draw; plains. Phenology: flowering & fruiting. 

Keith H. Dueholm, 7035.  6/18/1979. 		RM 333977	Barcode: RM0306840
_________________________________________________________________________

127.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Powder River Basin: Powder River Breaks.  Elev. 4700 ft.
T46N R78W S15; also S16, S21; also S22.  43.9578 N, 106.22 W; uncertainty 2 mi..  
Clay slopes, bottoms of draws, sagebrush plains on level areas; slopes. Phenology: flowering & fruiting. 

Keith H. Dueholm, 7483.  6/29/1979. 		RM 334028	Barcode: RM0306848
_________________________________________________________________________

128.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Powder River Basin: Hells Half Acre, ca 5 air mi W of Powder River.  Elev. 6000 ft.
T35N R85W S31; also T35N R86W S1, and T35N R85W S6.  43.0486 N, 107.095 W; uncertainty 3 mi..  
Bentonite badlands, slopes, drainages at bottom of slopes, sandy plains above; drainages. Phenology: flowering & fruiting. 

Keith H. Dueholm, 7745.  7/5/1979. 		RM 333976	Barcode: RM0306841
_________________________________________________________________________

129.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Powder River Basin: along Middle Casper Creek, ca 3.5 air mi SE of Powder River.  Elev. 5800 ft.
T35N R84W S19.  42.9897 N, 106.9578 W; uncertainty 1 mi..  
Greasewood/saltbush flats along creek; flats. Phenology: fruiting. 

Keith H. Dueholm, 7821.  7/5/1979. 		RM 334027	Barcode: RM0306847
_________________________________________________________________________

130.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Powder River Basin: Pratts Soda Lakes; ca 9 air mi NE of Casper.  Elev. 5400 ft.
T35N R78W S25; also S26, S35; also S36.  42.9747 N, 106.1528 W; uncertainty 2 mi..  
Sagebrush plain, saltbush flats, margins of soda lake; flats. Phenology: flowering & fruiting. 

Keith H. Dueholm, 7872.  7/5/1979. 		RM 333975	Barcode: RM0306842
_________________________________________________________________________

131.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Oil field, ca 4.2 air mi N of Waltman.  Elev. 6200 ft.
T36N R86W S6; also T36N R87W S1.  43.1192 N, 107.1936 W; uncertainty 2 mi..  
Eroded shale slopes with sandstone outcrops and drainages. Phenology: fruiting. 

Ronald L. Hartman, 10027.  7/12/1979. 		RM 334026	Barcode: RM0306717
_________________________________________________________________________

132.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Castle Gardens, ca 17 air mi SSE of Moneta.  Elev. 6000 ft.
T34N R90W S4; also S5, S8, and S9.  42.9481 N, 107.6289 W; uncertainty 3 mi..  
Sandstone outcrops, badlands, and sandy plains. Phenology: flowering & fruiting. 

Ronald L. Hartman, 13097.  6/27/1981. 		RM 387381	Barcode: RM0306715
_________________________________________________________________________

133.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: Cedar Ridge and barren hills to the N.  Elev. 5600-6000 ft.
T39N R92W S9; also S16 and S21.  43.3644 N, 107.8839 W; uncertainty 3 mi..  
Barren hills. Phenology: flowering & fruiting. 

Ronald L. Hartman, 13202.  6/28/1981. 		RM 387380	Barcode: RM0306716
     with Keith H. Dueholm
_________________________________________________________________________

134.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Ca 3 air mi SSW of Big Sand Draw Oil and Gas Field.  Elev. 6000-7000 ft.
T32N R95W S28.  42.7186 N, 108.1981 W; uncertainty 1 mi..  
Eroded slopes and ridges. Phenology: flowering & fruiting. 

Ronald L. Hartman, 13517.  7/3/1981. 		RM 387382	Barcode: RM0306714
_________________________________________________________________________

135.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Ca 2 air mi NE of Big Sand Draw Oil and Gas Field.  Elev. 6800 ft.
T32N R95W S2.  42.7761 N, 108.1592 W; uncertainty 1 mi..  
Eroded slopes and ridges and along stream. Phenology: flowering & fruiting. 

Ronald L. Hartman, 13559.  7/3/1981. 		RM 387383	Barcode: RM0306725
_________________________________________________________________________

136.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: Beaver Rim: ca 17 air mi NE of Jeffrey City.  Elev. 6900 ft.
T32N R90W S30; also S31.  42.7167 N, 107.6522 W; uncertainty 2 mi..  
Rim edge and slopes. Phenology: flowering & fruiting. 

Ronald L. Hartman, 13573.  7/3/1981. 		RM 387384	Barcode: RM0306726
_________________________________________________________________________

137.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: Cottonwood Creek, 7 air mi NE of Lysite.  Elev. 5400-5600 ft.
T39N R90W S14; also S15.  43.3494 N, 107.6039 W; uncertainty 2 mi..  
Sandy ridge, sandstone outcrops, eroded slopes and creek bottom; sandy ridges and eroded slopes. Phenology: flowering. 

Ronald L. Hartman, 19944.  5/28/1985. 		RM 387379	Barcode: RM0306782
     with June Haines
_________________________________________________________________________

138.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: Crooks Gap Road, ca 6.5 air mi S of Jeffrey City.  Elev. 6500 ft.
T28N R92W S17.  42.3989 N, 107.8417 W; uncertainty 1 mi..  
Sagebrush flats and stream margin. Phenology: flowering. 

Ronald L. Hartman, 20473.  6/3/1985. 		RM 387385	Barcode: RM0306783
_________________________________________________________________________

139.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Owl Creek/Bridger Mountains: Bridger Mountains: Steffen Hill, east portion; ca 14 air mi NW of Lysite.  Elev. 5600-6100 ft.
T39N R92W S5.  43.3786 N, 107.9042 W.  
Shale and limestone outcrops and slopes and scattered junipers. 

Ronald L. Hartman, 29345.  6/27/1991. 		RM 
_________________________________________________________________________

140.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Powder River Basin: near Logan Draw, ca 3 mi NE of Robertson Flat.  Elev. 4800 ft.
T40N R71W S14; also S23.  43.4416 N, 105.3447 W; uncertainty 2 mi..  
Rolling plains dissected by intermittent stream; bare slopes. Phenology: flowering. 

Ronald L. Hartman, 5850.  6/3/1978. 		RM 325230	Barcode: RM0306722
     with Keith Dueholm
_________________________________________________________________________

141.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 20 air mi ESE of Gillette.  Elev. 4300 ft.
T48N R69W S20; also S21.  44.1258 N, 105.17 W; uncertainty 2 mi..  
Plains and eroded slopes. Phenology: flowering. 

Ronald L. Hartman, 6374.  6/8/1978. 		RM 325234	Barcode: RM0306720
_________________________________________________________________________

142.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 26 air mi SSE of Gillette.  Elev. 4800 ft.
T46N R70W S23.  43.94944 N, 105.2314 W; uncertainty 1 mi..  
Stream margin and adjacent flats. Phenology: flowering. 

Ronald L. Hartman, 6490.  6/9/1978. 		RM 325238	Barcode: RM0306718
_________________________________________________________________________

143.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: along Porcupine Creek, ca 15 air mi SSE of Reno Junction.  Elev. 4700 ft.
T42N R71W S25; also S36.  43.5856 N, 105.3317 W; uncertainty 2 mi..  
Margins and adjacent sandy flats. Phenology: flowering. 

Ronald L. Hartman, 6506.  6/10/1978. 		RM 325229	Barcode: RM0306723
     with Keith Dueholm
_________________________________________________________________________

144.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 15.5 air mi ESE of Reno Junction.  Elev. 4500 ft.
T43N R69W S29; also S30.  43.6728 N, 105.1725 W; uncertainty 2 mi..  
Eroded hills with ponderosa pine. Phenology: flowering & fruiting. 

Ronald L. Hartman, 6790.  6/20/1978. 		RM 325231	Barcode: RM0306721
     with Keith Dueholm and Mary Alice Sanguinetti
_________________________________________________________________________

145.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Powder River Basin: ca 1 road mi W of Turnercrest.  Elev. 5100 ft.
T41N R73W S6.  43.5542 N, 105.6711 W; uncertainty 1 mi..  
Roadsides and grasslands. Phenology: flowering. 

Ronald L. Hartman, 7662.  6/29/1978. 		RM 325228	Barcode: RM0306724
     with Mary Alice Sanguinetti
_________________________________________________________________________

146.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: drainage leading to Middle Fork Casper Creek along Bucknum or County Road 125, ca 18.5 air mi NW of Casper.  Elev. 5500-5530 ft.
T35N R82W S24.  42.9869 N, 106.6231 W.  
Rolling plains of budsage or Gardner saltbush. Phenology: flowering. 

B. E. Nelson, 25812.  6/16/1993. 		RM 598565	Barcode: RM0306820
_________________________________________________________________________

147.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ridge W of Hemingway Draw along Thirtythree Mile or County Road 110, ca 24.5 mi NW of Casper.  Elev. 5560-5600 ft.
T37N R81W S28.  43.1496 N, 106.5742 W; uncertainty 1 mi..  
Rolling plains with a mosaic of grassland, sagebrush-grassland, and semi-barren clay knolls, ridges, and slopes. Phenology: flowering & fruiting. 

B. E. Nelson, 25855.  6/15/1993. 		RM 598566	Barcode: RM0307061
_________________________________________________________________________

148.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: W of 55 Ranch or County Road 23 and Dave Johnston Coal Mine, ca 14.3 air mi N of Glenrock or 13.6 air mi N of the North Platte River.  Elev. 5830-5900 ft.
T36N R75W S29 NE1/4.  43.0603 N, 105.8808 W.  
Rough breaks of coarse-grained sandstone, coal beds, and clay badlands with ponderosa pine. Phenology: flowering & fruiting. 

B. E. Nelson, 27301.  7/23/1993. 		RM 598568	Barcode: RM0306768
_________________________________________________________________________

149.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: on Notches Dome ca 1 air mi S of Okie Draw, ca 12 air mi NE of Waltman; ca 44 air mi NW of Casper.  Elev. 5980-6000 ft.
T37N R85W S3 SW1/4.  43.2076 N, 107.0352 W.  
Steep soft clay cobblestone hills with scattered sagebrush, greasewood, and bluebunch wheatgrass. Phenology: flowering. 

B. E. Nelson, 30559.  5/23/1994. 		RM 704468	Barcode: RM0307063
_________________________________________________________________________

150.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Stone Cabin Creek crossing Poison Spider or County Road 201, ca 38 air mi NW of Alcova townsite.  Elev. 6340-6400 ft.
T33N R88W S1; also T34N R88W S36.  42.8584 N, 107.3358 W.  
Sagebrush-grassland with occasional greasewood; selenium indicators present. Phenology: flowering. 

Amy J. Roderick, 5484.  6/24/1998. 		RM 
_________________________________________________________________________

151.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: at the west end of Cottonwood Rim above Cottonwood Creek, ca 2.5-3 air mi S of Three Buttes, ca 17 air mi N of Powder River; ca 47 air mi NW of Casper.  Elev. 5900-6060 ft.
T38N R85W S9 South1/2.  43.2789 N, 107.055 W; uncertainty 1 mi..  
Badlands, sparsely vegetated slopes and gullies with scattered Artemisias and Atriplexes. Phenology: flowering & fruiting. 

B. E. Nelson, 31692.  6/19/1994. 		RM 704467	Barcode: RM0307064
_________________________________________________________________________

152.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 1/4-0.5 mi WNW of Big Sulfer Spring, ca 20 air mi NE of Powder River; ca 40 air mi NW of Casper.  Elev. 5600-5780 ft.
T38N R83W S5 South1/4.  43.2932 N, 106.8373 W.  
Steep, sparsely vegetated greasewood slopes. Phenology: flowering & fruiting. 

B. E. Nelson, 31752.  6/19/1994. 		RM 704466	Barcode: RM0307068
_________________________________________________________________________

153.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Cow Creek and the north end of Cow Creek Buttes, ca 15 air mi ENE of Bill; ca 43 air mi NE of Douglas.  Elev. 4540-4700 ft.
T39N R68W S36; W1/2 S14.  43.3126 N, 104.9708 W.  
Badlands of interspersed clays, shales, sandstones, coal beds, and mudstones with flat areas of grassland or sagebrush grassland. Phenology: flowering & fruiting. 

B. E. Nelson, 31840.  6/21/1994. 		RM 704465	Barcode: RM0307067
_________________________________________________________________________

154.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: along Lake Creek and the buttes to the SE ca 6 air mi SW of Dull Center; ca 45.5 air mi NNE of Douglas.  Elev. 4450-4540 ft.
T39N R69W S1.  43.3846 N, 105.0902 W.  
Badlands of interspersed  clays, shale, sandstone, coal beds, and mudstones with patches of greasewood or sagebrush. Phenology: flowering & fruiting. 

B. E. Nelson, 31994.  6/21/1994. 		RM 704464	Barcode: RM0307066
_________________________________________________________________________

155.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: near the end of Ormsby or County Road 705 ca 2.3 air mi W of Converse County on the divide between Sand Spring Creek and McKenzie Draw, ca 21 air mi NNE of Casper.  Elev. 5840-5960 ft.
T36N R77W S5 SW1/4.  43.121 N, 106.1162 W.  
Abandoned road to a drilling site. Phenology: flowering & fruiting. 

B. E. Nelson, 32168.  6/27/1994. 		RM 704463	Barcode: RM0307065
_________________________________________________________________________

156.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Emigrant Gap Ridge, ca 12 air mi W of Casper.  Elev. 5548-5580 ft.
T33N R81W S4 E1/4.  
Sandstone outcrops and sandy slopes in sagebrush grassland. Oonopsis multicaulis (Nutt.) E. Greene Phenology: flowering & fruiting. 

Ronald L. Hartman, 38025.  6/23/1993. 		RM 598569
_________________________________________________________________________

157.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: Poison Spider Oil Field, ca 24 air mi W of Casper.  Elev. 5700-5900 ft.
T33N R83W S3 NE1/4.  42.8615 N, 106.7752 W; uncertainty 0.5 mi..  
Sandy slopes and flats with sandstone outcrops in uplands with ponderosa pine. Oonopsis multicaulis (Nutt.) E. Greene Phenology: flowering & fruiting. 

Ronald L. Hartman, 38208.  6/23/1993. 		RM 598570
_________________________________________________________________________

158.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 3 air mi SSE of Powder River and ca 1 air mi NW of Middle Fork Casper Creek crossing.  Elev. 5890-5910 ft.
T35N R85W S24.  42.98972 N, 106.97722 W; uncertainty 1 mi..  
Sandy plains and white sandstone monuments. Oonopsis multicaulis (Nutt.) E. Greene Phenology: flowering & fruiting. 

Ronald L. Hartman, 38373.  6/24/1993. 		RM 598571
_________________________________________________________________________

159.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: north end of Pine Mountain.  Elev. 6200-6600 ft.
T35N R84W S26 N1/2; also NE1/4 S27, SE1/4 S23.  42.9779 N, 106.88 W; uncertainty 2 mi..  
Ponderosa pine rimmed mesa. Oonopsis multicaulis (Nutt.) E. Greene Phenology: flowering & fruiting. 

Ronald L. Hartman, 38397.  6/24/1993. 		RM 598572
_________________________________________________________________________

160.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: E of County Road 211, ca 1.2 air mi N of McClanahan Draw; ca 5.4 road mi to Poison Spider or County Road 201.  Elev. 6200 ft.
T34N R86W S32 NW1/4; also S29.  42.873 N, 107.1784 W.  
Badlands; hard clay soil interspersed with sandy areas of sagebrush-grassland. Phenology: flowering. 

Amy J. Roderick, 5536.  6/24/1998. 		RM 
_________________________________________________________________________

161.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: U.S. Hwy 20, 26, less than 1 air mi E of Fremont County.  Elev. 5580 ft.
T37N R89W S27 S 1/2.  43.1483 N, 107.5067 W.  
Alkaline draw with sandy slopes. Phenology: flowering & fruiting. 

Ronald L. Hartman, 40188.  7/6/1993. 		RM 598575	Barcode: RM0307056
     with T. W. Nelson
_________________________________________________________________________

162.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 1.5 mi E of Arminto.  Elev. 5900 ft.
T37N R87W S12 SE1/4; and also NE1/4 S13.  43.1908 N, 107.2294 W; uncertainty 0.25 mi..  
Sandy slopes. Phenology: flowering & fruiting. 

Ronald L. Hartman, 40340.  7/6/1993. 		RM 598576	Barcode: RM0307055
     with T. W. Nelson
_________________________________________________________________________

163.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 6 air mi NW of Arminto.  Elev. 6230 ft.
T38N R87W S19 SE1/4; and also NE1/4 S30.  43.2492 N, 107.3267 W; uncertainty 1 mi..  
Sandy-rocky slope and eroded drainage areas. Phenology: flowering & fruiting. 

Ronald L. Hartman, 40403.  7/6/1993. 		RM 598577	Barcode: RM0307054
     with T. W. Nelson
_________________________________________________________________________

164.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Southern Powder River Basin/Southeastern Plains: Southern Powder River Basin: ca 10 air mi SW of Waltman along Powder River.  Elev. 6400 ft.
T34N R88W S2 SW1/4; also NW1/4 S11.  42.9483 N, 107.3494 W; uncertainty 1 mi..  
Sandy slopes and sandstone outcrop with juniper. Phenology: flowering & fruiting. 

Ronald L. Hartman, 40504.  7/6/1993. 		RM 598578	Barcode: RM0307062
     with Thomas W. Nelson
_________________________________________________________________________

165.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Crook County: Black Hills: Cabin Creek SSW of Cedar Hill; ca 8.5 air mi WSW of Devils Tower.  Elev. 4100 ft.
T52N R67W S2 NE1/4.  44.52 N, 104.8722 W; uncertainty 1 mi..  
Big sagebrush-grassland with occasional Rocky Mountain junipers; on Skull Creek shale. Phenology: flowering. 

Hollis Marriott, 6537.  6/7/1984. 		RM 372558	Barcode: RM0307060
_________________________________________________________________________

166.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Black Hills: W of Wyo Hwy 116 near junction with Arch Creek Road, ca 5 air mi NNE of Upton.  Elev. 4450 ft.
T48N R64W S7 NW1/4.  44.1567 N, 104.58389 W; uncertainty 1 mi..  
Big sagebrush-grassland, roadside. Phenology: flowering & fruiting. 

Hollis Marriott, 7278.  6/27/1984. 		RM 372557	Barcode: RM0306776
_________________________________________________________________________

167.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Powder River Basin: ca 4 air mi SSE of Rochelle.  Elev. 4200 ft.
T41N R67W S7; also S8.  43.5466 N, 104.9461 W; uncertainty 2 mi..  
Ridge and slopes. Phenology: flowering & fruiting. 

Ronald L. Hartman, 6762.  6/20/1978. 		RM 325236	Barcode: RM0306719
     with Keith H. Dueholm and Mary Alice Sanguinetti
_________________________________________________________________________

168.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Newcastle.
Phenology: flowering. 

J.M. Bates, 557.  6/17/1896. 		RM 8500	Barcode: RM0306797
_________________________________________________________________________

169.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Newcastle.
Phenology: flowering. 

J.M. Bates, s.n..  6/13/1896. 		RM 169688	Barcode: RM0306796
_________________________________________________________________________

170.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Bates Hole.  Elev. 6000-7400 ft.
T28N R80W S3.  42.4261 N, 106.398 W; NAD 83, uncertainty 2 mi., Digital Map.  
Naked clay slopes and flats. Phenology: flowering & fruiting. 

Edwin B. Payson, 4798.  7/22/1924. 		RM 279283	Barcode: RM0307031
_________________________________________________________________________

171.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: 35 air mi SSE of Casper.  Elev. 7110 ft.
T28N R78W S28.  
With Artemisia tridentata, Gramineae. Phenology: flowering & fruiting. 

Francis B. Current, 499.  7/25/1978. 		RM 317085	Barcode: RM0307030
_________________________________________________________________________

172.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Hells Half Acre.  Elev. 5600 ft.
T36N R86W S36.  43.0483 N, 107.0972 W; uncertainty 3 mi..  
Phenology: flowering & fruiting. 

George F. Freytag, 8.  5/2/1948. 		RM 211802	Barcode: RM0307040
_________________________________________________________________________

173.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Well on Salt Creek Road.
43.4175 N, 106.2892 W; NAD 83, uncertainty 0.5 mi., Digital Map.  
Mucky soil. Phenology: flowering & fruiting. 

Leslie N. Goodding, 213.  7/8/1901. 		RM 37188	Barcode: RM0307041
_________________________________________________________________________

174.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Northeastern portion of county.
T38N R68W.  
Badlands. Phenology: flowering & fruiting. 

Marion Ownbey, 1042.  6/18/1936. 		RM 151682	Barcode: RM0307033
     with Robert L. Lang
_________________________________________________________________________

175.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 10 mi W of Casper.  Elev. 5000 ft.
T33N R81W S16.  42.8294 N, 106.5662 W; uncertainty 2 mi..  
Dry, alkaline plains. Phenology: flowering & fruiting. 

Marion Ownbey, 790.  7/2/1935. 		RM 143281	Barcode: RM0307032
_________________________________________________________________________

176.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 10 mi W of Casper.
Dry saline soil. Phenology: flowering & fruiting. 

Robert L. Tresler, 365.  6/13/1967. 		RM 284076	Barcode: RM0307039
_________________________________________________________________________

177.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Hell's Half Acre.
Dry sandy hills. Phenology: flowering & fruiting. 

Thomas W. Nelson, 1602.  7/6/1974. 		RM 297833	Barcode: RM0307034
     with James Nelson
_________________________________________________________________________

178.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Upper North Platte and Laramie River Drainages: northern rim of Shirley Basin W of Wyo Hwy 77, ca 11.6 air mi NW of Shirley Basin townsite.  Elev. 7200-7300 ft.
T27N R80W S3; also S4.  42.3397 N, 106.4034 W.  
Chalky knoll with spreading patches of Arctostaphylos uva-ursi. Phenology: flowering. 

Amy J. Roderick, 6134.  7/10/1998. 		RM 
_________________________________________________________________________

179.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Hells Half Acre S of U.S. Hwy 20-26, 44 road mi W of Casper.  Elev. 5900-6060 ft.
T36N R86W S36; also T35N R86W S1.  43.0481 N, 107.0997 W.  
Rocky sagebrush-grassland leading into canyon of badlands; greasewood common. Phenology: flowering & fruiting. 

Amy J. Roderick, 6558.  7/14/1998. 		RM 
_________________________________________________________________________

180.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: E of Gas Hills or County Road 212, ca 10.5 air mi SW of Waltman.  Elev. 6240-6450 ft.
T35N R88W S36; also T34N R88W S1.  42.9606 N, 107.3358 W.  
Badlands bordered by sagebrush-grassland and northeast-facing slope of scattered limber pine. Phenology: flowering & fruiting. 

Amy J. Roderick, 6577.  7/14/1998. 		RM 
_________________________________________________________________________

181.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Blue Gulch N of Wyo Hwy 220, ca 3.2 air mi NW of Alcova townsite.  Elev. 6000 ft.
T30N R83W S3.  42.5986 N, 106.767 W.  
Chalky hills with scattered Utah juniper and Rhus trilobata var. trilobata. Phenology: flowering & fruiting. 

Amy J. Roderick, 6682.  7/18/1998. 		RM 
_________________________________________________________________________

182.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Between Sheridan and Buffalo.  Elev. 3500-5000 ft.
Rolling plains. Phenology: flowering. 

Frank Tweedy, 3041.  6/15/1900. 		RM 38373	Barcode: RM0306800
_________________________________________________________________________

183.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Powder River: the Devils Kitchen.  Elev. 5900 ft.
T36N R86W S36.  43.04861 N, 107.095 W; uncertainty 2 mi..  
Saline clays. Phenology: flowering & fruiting. 

Aven Nelson, 9374.  6/28/1910. 		RM 169690	Barcode: RM0306807
_________________________________________________________________________

184.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Black Mountain: schoolhouse near Crowheart.
Dry semidesert. Phenology: flowering. 

Carrolle H. Markle, 19.  8/7/1960. 		RM 36330	Barcode: RM0306811
_________________________________________________________________________

185.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Black Thunder Strip Mining Area: North Prong Thunder Creek and Little Thunder Creek.  Elev. 4860 ft.
T42N R70W S2 NE1/4 SW1/4.  43.6418 N, 105.2358 W; uncertainty 0.25 mi..  
Roadside: associated with fringed sagewort, western wheatgrass, common Russian thistle, common tumblegrass; in loamy, clayey soil (Briggsdale and Cushman series). Phenology: flowering. 

R. E. Ries, s.n..  7/3/1973. 		RM 293509	Barcode: RM0306812
     with D. W. Sabinske
_________________________________________________________________________

186.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: 40 km (25 mi) S and 6 km (4 mi) E of Gillette. On outcrop of Wasatch Formation.  Elev. 4650 ft.
T45N R70W; also T46N R71W.  
Clay soil. Phenology: flowering. 

Warren R. Kaemmerer, CC-123.  6/27/1975. 		RM 164664	Barcode: RM0306813
_________________________________________________________________________

187.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County:   Elev. 5600 ft.
T39N R92W S15 NE1/4.  43.3493 N, 107.8648 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Roadside. Associates: Artemisia, Atriplex, Corolla yellow. Phenology: flowering. 

Robert D. Dorn, 2976.  7/13/1977. 		RM 301879	Barcode: RM0307037
_________________________________________________________________________

188.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Near Maverick Springs.  Elev. 7000 ft.
Phenology: flowering. 

Edith V. A. Murphey, 13.  6/25/1942. 		RM 195633	Barcode: RM0307038
_________________________________________________________________________

189.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Beaver Hill overlooking Beaver Creek, U.S. 287.
Phenology: flowering. 

John M. Gillett, 11573.  6/29/1962. 		RM 283028	Barcode: RM0307035
     with R. L. Taylor
_________________________________________________________________________

190.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Eastern Plains: Mule Creek tributary, ca 10 mi NE of Redbird, S of U.S. Hwy 18.  Elev. 4446 ft.
T39N R61W S36 NE1/4.  43.3194 N, 104.1303 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
In silty clay barrens, with Eriogonum pauciflorum, Stenotus acaulis, Stanleya pinnata, Achnatherum hymenoides. Occasional. Phenology: flowering. 

Bonnie Heidel, 3301.  6/10/2009. 		RM 841650	Barcode: RM0047676
_________________________________________________________________________

191.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: Cow Creek Road: ca 8 mi S of Dull Center.  Elev. 4600 ft.
43 18.9' N, 104 58.3' W; GPS reading.  
Clay barrens, with Pediomelum esculentum, Erigeron ochroleucus. Flower color yellow. Phenology: flowering. 

Robert D. Dorn, 10581.  6/29/2009. 		RM 841527	Barcode: RM0306708
_________________________________________________________________________

192.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Ca 21 mi SSE of Riverton.  Elev. 5900 ft.
42 44.8' N, 108 13.3' W; Specimen Label.  
Clay flat with Platyschkuhria and Hymenoxys. Flowers yellow. Phenology: flowering & fruiting. 

Robert D. Dorn, 10654.  6/29/2010. 		RM 906954	Barcode: RM0306727
_________________________________________________________________________

193.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Along Wyo Hwy 138 , ca 7.5 mi SW of Riverton, ca 1/4 mi S of Little Wind River.  Elev. 5000 ft.
T1S R3E S26.  
On exposed rocky-clay. Small population. Phenology: buds. 

Timothy Evans, 57.  6/5/1990. 		RM 784832	Barcode: RM0306819
     with Gregory K. Brown
_________________________________________________________________________

194.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Along Lysite-Moneta Road, ca 3 mi N of Moneta.  Elev. 5650 ft.
T37N R91W S1.  
In light grey clay at base of hills. same as Brown 2958 Phenology: buds. 

Timothy Evans, 58.  6/5/1990. 		RM 784819	Barcode: RM0306818
     with Gregory K. Brown
_________________________________________________________________________

195.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Along County Road 112 (Lone Bear Road), ca 34 air mi NW of Casper.  Elev. 5350 ft.
T38N R81W S30.  
In exposed clay areas. Common. Phenology: flowering. 

Timothy Evans, 65.  6/6/1990. 		RM 784820	Barcode: RM0306817
     with Gregory K. Brown
_________________________________________________________________________

196.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Along County Road 112 (Lone Bear Road), ca 40 air mi NW of Casper.  Elev. 5180 ft.
T39N R82W S21.  
In exposed grey clay. Common. Phenology: flowering. 

Timothy Evans, 64.  6/6/1990. 		RM 784821	Barcode: RM0306816
     with Gregory K. Brown
_________________________________________________________________________

197.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Along County Road 112 (Lone Bear Road), ca 45 air mi NNW of Casper.  Elev. 5060 ft.
T40N R82W S21.  
Only on exposed, disturbed clay soil. Phenology: flowering. 

Timothy Evans, 63.  6/6/1990. 		RM 784822	Barcode: RM0306815
     with Gregory K. Brown
_________________________________________________________________________

198.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Along Lysite-Moneta Road, ca 6.2 mi N of Moneta.  Elev. 5500 ft.
T38N R90W S19.  
On exposed grey clay. With last year's heads. Phenology: vegetative only. 

Timothy Evans, 59.  6/5/1990. 		RM 784823	Barcode: RM0306823
     with Gregory K. Brown
_________________________________________________________________________

199.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Along Norwood Road (road to Big Trails), ca 19 mi NNE of Moneta; ca 29 mi NE of Shoshoni.  Elev. 5780 ft.
T39N R90W S12.  
Exposed rocky clay. Phenology: flowering. 

Timothy Evans, 60.  6/5/1990. 		RM 784824	Barcode: RM0306793
     with Gregory K. Brown
_________________________________________________________________________

200.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Along road to Mayoworth, ca 1.5 mi W of Mayoworth; ca 40 mi SSW of Buffalo.  Elev. 5430 ft.
T45N R83W S34.  
Along arroyo, exposed, heavy grey clay. same as Brown 2965 Phenology: buds. 

Timothy Evans, 61.  6/6/1990. 		RM 784825	Barcode: RM0306792
     with Gregory K. Brown
_________________________________________________________________________

201.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Along Wyo Hwy 77 5.8 mi N of the northern junction of Wyo Hwys 487 and 77, 4.6 mi N of Carbon County (Bates Hole).  Elev. 6100 ft.
T29N R80W S17.  
On gray clay flats with Atriplex. Phenology: flowering & fruiting. 

Gregory K. Brown, 2735.  6/17/1987. 		RM 785128	Barcode: RM0306791
     with Timothy Evans
_________________________________________________________________________

202.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 4.7 mi W of Wyo Hwy 59 on County Road 34, just N of Betty Reservoir Dam.  Elev. 4750 ft.
T40N R72W S35.  
Roadside. same population as Brown 2687 Phenology: flowering & fruiting. 

Gregory K. Brown, 2754.  6/18/1987. 		RM 785131	Barcode: RM0306790
     with Timothy Evans
_________________________________________________________________________

203.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: N of U.S. Hwy 20-26 across from Hells Half Acre.  Elev. 6000 ft.
T36N R86W S36.  
Badlands. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2748.  6/17/1987. 		RM 785134	Barcode: RM0306789
     with Timothy Evans
_________________________________________________________________________

204.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 13.5 mi SW of junction between County Road 212 (road to Gas Hills) and U.S. Hwy 20-26 along County Road 212.  Elev. 6300 ft.
T34N R88W S10.  
Roadside flat, heavy gray clay with widely scattered Atriplex and Artemisia tridentata. Phenology: flowering & fruiting. 

Gregory K. Brown, 2745.  6/17/1987. 		RM 785137	Barcode: RM0306788
     with Timothy Evans
_________________________________________________________________________

205.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 10.5 mi SW of junction between County Road 212 (road to Gas Hills) and U.S. Hwy 20-26 along County Road 212.  Elev. 6220 ft.
T35N R88W S25.  
Small erosional outcrop next to west side of road, on outcrop only. Common on outcrop only; plants very robust at top. Phenology: flowering & fruiting. 

Gregory K. Brown, 2746.  6/17/1987. 		RM 785136	Barcode: RM0306787
     with Timothy Evans
_________________________________________________________________________

206.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 13.9 mi S of U.S. Hwy 20-26 on County Road 209 (S of "town" of Powder River); 4.7 mi from junction of County Roads 211 (Powder River Road) and 209.
On disturbed roadside. Small population. Phenology: flowering & fruiting. 

Gregory K. Brown, 2751.  6/18/1987. 		RM 785138	Barcode: RM0306786
     with Timothy Evans
_________________________________________________________________________

207.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: 4 mi N of Lost Cabin on Lysite-Ten Sleep Road.  Elev. 5700 ft.
T39N R90W S23.  
On flanks and at base of gray-red, highly eroded small bluffs. Common. Phenology: flowering. 

Gregory K. Brown, 2960.  6/5/1990. 		RM 791760	Barcode: RM0306785
     with Timothy Evans
_________________________________________________________________________

208.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 4.9 mi S of Johnson County on County Road 112 (Lone Bear Road), 7.9 mi N of South Fork Powder River.  Elev. 5060 ft.
T40N R82W S21.  
On roadside flats, gray clay. Common in small clusters. Phenology: flowering. 

Gregory K. Brown, 2968.  6/6/1990. 		RM 791759	Barcode: RM0306784
     with Timothy Evans
_________________________________________________________________________

209.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 21.8 mi N of Lance Creek (town) on extension of Wyo Hwy 272 to Clareton.  Elev. 4080 ft.
T38N R65W S2.  
Hard clay, with Artemisia tridentata. Small population west side of road. same as Evans 29 Phenology: flowering. 

Gregory K. Brown, 2821.  6/13/1989. 		RM 791786	Barcode: RM0306794
     with Timothy Evans, Neil Snow
_________________________________________________________________________

210.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 6.4 mi N of South Fork Powder River on County Road 112 (Lone Bear Road).  Elev. 5220 ft.
T40N R82W S28.  
Roadside, gray clay. Wide spread. Phenology: flowering & fruiting. 

Gregory K. Brown, 2969.  6/6/1990. 		RM 791761	Barcode: RM0306795
     with Timothy Evans
_________________________________________________________________________

211.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 9.4 mi S of U.S. Hwy 20-26 on County Road 209 (S of "town" of Powder River); 0.2 mi from junction of County Roads 211 (Powder River Road) and 209.
Gray clay flats and crests of eroded hills. Locally common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2749.  6/18/1987. 		RM 784931	Barcode: RM0306707
     with Timothy Evans
_________________________________________________________________________

212.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 2.7 mi N of junction of Wyo Hwys 487 and 77 along Wyo Hwy 77, 1.5 mi N of Carbon County (Bates Hole).  Elev. 6250 ft.
T29N R80W S21.  
On gray clay slopes. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2734.  6/17/1987. 		RM 784932	Barcode: RM0306706
     with Timothy Evans
_________________________________________________________________________

213.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Pine Ridge, 2.6 mi N of Linch on Wyo Hwy 192.  Elev. 4860 ft.
T42N R78W S2.  
Along roadside N of ridge. Common. same as Evans 40 Phenology: flowering. 

Gregory K. Brown, 2838.  6/14/1989. 		RM 785020	Barcode: RM0306705
     with Timothy Evans, Neil Snow
_________________________________________________________________________

214.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 5.8 mi N of northern junction of Wyo Hwys 487 and 77 along Wyo Hwy 77, 4.6 mi N of Carbon County.  Elev. 6100 ft.
T29N R80W S17.  
On gray clay flats with Atriplex. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2735.  6/17/1987. 		RM 784933	Barcode: RM0306704
     with Timothy Evans
_________________________________________________________________________

215.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along continuation (dirt road, Lance Creek Road) of Wyo Hwy 272, ca 3.7 mi N of Lance Creek (town), ca 0.5 mi W of Lance Creek (stream), ca 96 air mi ENE of Casper.  Elev. 4280 ft.
T36N R65W S14.  
On east side of road in dry exposed clay soil. Abundant. Phenology: flowering. 

Timothy Evans, 27.  6/13/1989. 		RM 784844	Barcode: RM0306703
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

216.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along continuation (dirt road, Lance Creek Road) of Wyo Hwy 272, ca 1.5 mi N of Cow Creek (town), ca 15.8 mi N of Lance Creek (town).  Elev. 4200 ft.
T38N R65W S14.  
In dry clay on west side of road. same as Brown 2820 Phenology: flowering. 

Timothy Evans, 28.  6/13/1989. 		RM 784845	Barcode: RM0306702
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

217.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along continuation (dirt road, Lance Creek Road) of Wyo Hwy 272, ca 21.8 mi N of Lance Creek (town).  Elev. 4080 ft.
T38N R65W S2.  
In dry clay on west side of road. Phenology: flowering & fruiting. 

Timothy Evans, 29.  6/13/1989. 		RM 784846	Barcode: RM0306701
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

218.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Along Shirly Ridge Road, ca 0.8 mi E of junction with Wyo Hwy 77.  Elev. 7270 ft.
T27N R80W S2.  
Exposed clay. Only one plant in flower. Phenology: flowering & fruiting. 

Timothy Evans, 114.  9/15/1990. 		RM 784847	Barcode: RM0306712
     with Gregory K. Brown
_________________________________________________________________________

219.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 2.8 mi N of Wyo Hwy 95/93 on County Road 31 (Ross Road), ca 30 mi N of I-25 at Glenrock.  Elev. 5240 ft.
T34N R73W S20.  
On clay flats W of road. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2758.  6/18/1987. 		RM 785099	Barcode: RM0306713
     with Timothy Evans
_________________________________________________________________________

220.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 2.8 mi N of Wyo Hwy 95/93 on County Road 31 (Ross Road), ca 30 mi N of I-25 at Glenrock.  Elev. 5240 ft.
T34N R73W S20.  
On clay flats W of road. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2758.  6/18/1987. 		RM 784860	Barcode: RM0306835
     with Timothy Evans
_________________________________________________________________________

221.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 3 mi NW of junction of U.S. Hwy 18-20 and I-25, on service road W of the Interstate.  Elev. 4900 ft.
T31N R70W S2.  
In highly eroded wash W of Interstate. Infrequent. same population as Brown 2688. Phenology: flowering & fruiting. 

Gregory K. Brown, 2759.  6/18/1987. 		RM 784861	Barcode: RM0306834
     with Timothy Evans
_________________________________________________________________________

222.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Pine Ridge, 2.6 mi N of Linch on Wyo Hwy 192.  Elev. 4860 ft.
T42N R78W S2.  
Along roadside N of ridge. Common. same as Evans 40 Phenology: flowering & fruiting. 

Gregory K. Brown, 2838.  6/14/1989. 		RM 784862	Barcode: RM0306833
     with Timothy Evans, Neil Snow
_________________________________________________________________________

223.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: 4.4 mi SE of Sussex on Wyo Hwy 192.  Elev. 4670 ft.
T43N R78W S22.  
In heavy clay along road above arroyo. Very common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2840.  6/14/1989. 		RM 784863	Barcode: RM0306832
     with Timothy Evans, Neil Snow
_________________________________________________________________________

224.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: 19.8 mi S of Kaycee on I-25, just N of I-25 at exit 235.  Elev. 4820 ft.
T41N R80W S22.  
In flat depressions, clay, Artemisia and Atriplex. Common. same as Evans 41 Phenology: flowering. 

Gregory K. Brown, 2841.  6/14/1989. 		RM 784864	Barcode: RM0306831
     with Timothy Evans, Neil Snow
_________________________________________________________________________

225.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 5.8 mi N of Lance Creek (town) on Wyo Hwy 272, flats above Lance Creek.  Elev. 4270 ft.
T36N R65W S14.  
Clay roadside and flat, in disturbed soil. Common. Phenology: flowering. 

Gregory K. Brown, 2819.  6/13/1989. 		RM 784867	Barcode: RM0306830
     with Timothy Evans, Neil Snow
_________________________________________________________________________

226.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Along Lysite-Moneta Road, ca 3 mi N of Moneta.  Elev. 5650 ft.
T37N R91W S1.  
In light grey clay at base of hills. same as Brown 2958 Phenology: flowering. 

Timothy Evans, 58.  6/5/1990. 		RM 785011	Barcode: RM0306829
     with Gregory K. Brown
_________________________________________________________________________

227.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 5.8 mi N of Lance Creek (town) on Wyo Hwy 272, flats above Lance Creek.  Elev. 4270 ft.
T36N R65W S14.  
Clay roadside and flat, in disturbed soil. Common. same as Evans 27 Phenology: flowering. 

Gregory K. Brown, 2819.  6/13/1989. 		RM 785005	Barcode: RM0306828
     with Timothy Evans, Neil Snow
_________________________________________________________________________

228.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: N of U.S. Hwy 20-26 across from Hells Half Acre.  Elev. 6000 ft.
T36N R86W S36.  
Badlands. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2748.  6/17/1987. 		RM 785012	Barcode: RM0306827
     with Timothy Evans
_________________________________________________________________________

229.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: along Wyo Hwy 450, ca 1.2 mi E of Clareton, ca 0.1 mi W of Lodgepole Creek.  Elev. 4100 ft.
T43N R65W S16.  
On rolling prairie. Phenology: flowering & fruiting. 

Timothy Evans, 31.  6/13/1989. 		RM 784927	Barcode: RM0306826
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

230.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Along Wyo Hwy 116, ca 6.2 mi SW of Upton.  Elev. 4500 ft.
T47N R66W S13.  
Clay. Scattered in patches on both sides of road. same as Brown 2835 Phenology: flowering & fruiting. 

Timothy Evans, 32.  6/13/1989. 		RM 784928	Barcode: RM0306825
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

231.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 11.2 mi S of U.S. Hwy 20-26 on County Road 209 (S of "town" of Powder River), 2 mi from junction of County Roads 211 (Powder River Road) and 209.
Gray clay, roadside. Small population. Phenology: flowering & fruiting. 

Gregory K. Brown, 2750.  6/18/1987. 		RM 784929	Barcode: RM0306824
     with Timothy Evans
_________________________________________________________________________

232.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 13.9 mi S of U.S. Hwy 20-26 on County Road 209 (S of "town" of Powder River), 4.7 mi from junction of County Roads 211 (Powder River Road) and 209.
On disturbed roadside. Small population. Phenology: flowering. 

Gregory K. Brown, 2751.  6/18/1987. 		RM 784930	Barcode: RM0306836
     with Timothy Evans
_________________________________________________________________________

233.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Crook County: 18.7 mi SW of Devils Tower Junction on U.S. Hwy 14, just W of Keyhole Reservoir.  Elev. 4120 ft.
T51N R67W S33.  
In shallow pan-shaped depression on top of small hill. Small population. same as Evans 37 Phenology: flowering. 

Gregory K. Brown, 2836.  6/14/1989. 		RM 800299	Barcode: RM0307080
     with Timothy Evans, Neil Snow
_________________________________________________________________________

234.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Crook County: 18.7 mi SW of Devils Tower Junction on U.S. Hwy 14, just W of Keyhole Reservoir.  Elev. 4120 ft.
T51N R67W S33.  
In shallow pan-shaped depression on top of small hill. Small population. same as Evans 37 Phenology: flowering. 

Gregory K. Brown, 2836.  6/14/1989. 		RM 800297	Barcode: RM0307069
     with Timothy Evans, Neil Snow
_________________________________________________________________________

235.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Crook County: 18.7 mi SW of Devils Tower Junction on U.S. Hwy 14, just W of Keyhole Reservoir.  Elev. 4120 ft.
T51N R67W S33.  
In shallow pan-shaped depression on top of small hill. Small population. same as Evans 37 Phenology: flowering. 

Gregory K. Brown, 2836.  6/14/1989. 		RM 800298	Barcode: RM0307070
     with Timothy Evans, Neil Snow
_________________________________________________________________________

236.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: 35.3 mi S of Gillette on Wyo Hwy 59, E of North Butte.  Elev. 5000 ft.
T44N R72W S14.  
Roadside ditches, in flats with depressions, clay, Artemisia tridentata. Common. same as Evans 38 Phenology: flowering & fruiting. 

Gregory K. Brown, 2837.  6/14/1989. 		RM 800300	Barcode: RM0307071
     with Timothy Evans, Neil Snow
_________________________________________________________________________

237.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: 35.3 mi S of Gillette on Wyo Hwy 59, E of North Butte.  Elev. 5000 ft.
T44N R72W S14.  
Roadside ditches, in flats with depressions, clay, Artemisia tridentata. Common. same as Evans 38 Phenology: flowering & fruiting. 

Gregory K. Brown, 2837.  6/14/1989. 		RM 800301	Barcode: RM0307072
     with Timothy Evans, Neil Snow
_________________________________________________________________________

238.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: 35.3 mi S of Gillette on Wyo Hwy 59, E of North Butte.  Elev. 5000 ft.
T44N R72W S14.  
Roadside ditches, in flats with depressions, clay, Artemisia tridentata. Common. same as Evans 38 Phenology: flowering & fruiting. 

Gregory K. Brown, 2837.  6/14/1989. 		RM 800302	Barcode: RM0307073
     with Timothy Evans, Neil Snow
_________________________________________________________________________

239.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: 35.3 mi S of Gillette on Wyo Hwy 59, E of North Butte.  Elev. 5000 ft.
T44N R72W S14.  
Roadside ditches, in flats with depressions, clay, Artemisia tridentata. Common. same as Evans 38 Phenology: flowering & fruiting. 

Gregory K. Brown, 2837.  6/14/1989. 		RM 800303	Barcode: RM0307074
     with Timothy Evans, Neil Snow
_________________________________________________________________________

240.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Bates Hole, 23 mi S of junction of Wyo Hwys 220 and 487, ca 2.3 mi N of Carbon County.  Elev. 6280 ft.
T29N R80W S28.  
Roadside slopes of dry gray clayey soil. Phenology: flowering. 

Gregory K. Brown, 2692.  8/10/1984. 		RM 785170	Barcode: RM0307079
_________________________________________________________________________

241.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: 3 mi N of Moneta on Moneta-Lysite Road.  Elev. 5650 ft.
T37N R91W S1.  
Base of small bluffs, white clay. Very common. Phenology: flowering. 

Gregory K. Brown, 2958.  6/5/1990. 		RM 785171	Barcode: RM0307078
     with Timothy Evans
_________________________________________________________________________

242.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: 6.2 mi SW of Upton on Wyo Hwy 116.  Elev. 4370 ft.
T47N R66W S13.  
Disturbed roadsides, clay soil. Scattered. same as Evans 32 Phenology: flowering. 

Gregory K. Brown, 2825.  6/13/1989. 		RM 785172	Barcode: RM0307077
     with Timothy Evans, Neil Snow
_________________________________________________________________________

243.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: 9.3 mi S of Riverton, above Popo Agie River on Wyo Hwy 138.
Shale outcrop next of road. Phenology: buds. 

Gregory K. Brown, 2953.  6/5/1990. 		RM 785173	Barcode: RM0307076
     with Timothy Evans
_________________________________________________________________________

244.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 5.1 mi N of Wyo Hwy 95/93 on County Road 31 (Ross Road), ca 32 mi N of I-25 at Glenrock, opposite driveway to Smith Sheep Ranch on east side of road.  Elev. 5280 ft.
T35N R73W S7.  
Along roadside and upper edges of small eroded slopes. Widely scattered. Phenology: flowering & fruiting. 

Gregory K. Brown, 2757.  6/18/1987. 		RM 784859	Barcode: RM0307075
     with Timothy Evans
_________________________________________________________________________

245.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Vicinity of Bates Hole, 3.5 mi S of junction of Wyo Hwys 487 and 77 along Wyo Hwy 77, 4.7 mi S of Natrona County.  Elev. 6750 ft.
T28N R80W S27.  
On gray clay flats along highway. Common. 2n =4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2733.  6/17/1987. 		RM 784831	Barcode: RM0306736
     with Timothy Evans
_________________________________________________________________________

246.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Vicinity of Bates Hole, 3.5 mi S of junction of Wyo Hwys 487 and 77 along Wyo Hwy 77, 4.7 mi S of Natrona County.  Elev. 6750 ft.
T28N R80W S27.  
On gray clay flats along highway. Common. 2n =4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2733.  6/17/1987. 		RM 785129	Barcode: RM0306735
     with Timothy Evans
_________________________________________________________________________

247.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 18.4 mi W of Wyo Hwy 59 on County Road 34 (Betty Reservoir Road), 1.8 mi E of junction of County Roads 34 and 31 (Ross Road).  Elev. 5140 ft.
T38N R73W S7.  
In thin strip of upper portions of shallow roadside ditch. Common. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2755.  6/18/1987. 		RM 785130	Barcode: RM0306734
     with Timothy Evans
_________________________________________________________________________

248.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 0.9 mi S of U.S. Hwy 20-26 on County Road 212 (road to Gas Hills).  Elev. 5970 ft.
T36N R86W S30.  
Roadside flat, sandy gray clay with Artemisia tridentata. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2747.  6/17/1987. 		RM 784945	Barcode: RM0307026
     with Timothy Evans
_________________________________________________________________________

249.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 21.8 mi N of Lance Creek (town) on extension of Wyo Hwy 272 to Clareton.  Elev. 4080 ft.
T38N R65W S2.  
Hard clay with Artemisia tridentata. Small population on west side of road. same as Evans 29.  DNA voucher. Phenology: flowering & fruiting. 

Gregory K. Brown, 2821.  6/13/1989. 		RM 791785	Barcode: RM0306732
     with Timothy Evans, Neil Snow
_________________________________________________________________________

250.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: 1.5 mi N of Mayoworth on east side of road to bentonite quarry.  Elev. 5430 ft.
T45N R83W S34.  
Flat above arroyo; heavy clay. Common in patches. DNA voucher Phenology: flowering. 

Gregory K. Brown, 2965.  6/6/1990. 		RM 791762	Barcode: RM0306731
     with Timothy Evans
_________________________________________________________________________

251.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1.2 mi N of South Fork Powder River on County Road 112 (Lone Bear Road).  Elev. 5160 ft.
T39N R82W S21.  
Gray clay barrens. Common in patchy barrens. DNA voucher Phenology: flowering. 

Gregory K. Brown, 2970.  6/6/1990. 		RM 791763	Barcode: RM0306730
     with Timothy Evans
_________________________________________________________________________

252.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 9.3 mi E of Lance Creek (town) on Wyo Hwy 270.  Elev. 4440 ft.
T36N R64W S36.  
Clay soil. Common in small clusters. sames as Evans 26; DNA voucher; 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2818.  6/13/1989. 		RM 785150	Barcode: RM0306729
     with Timothy Evans, Neil Snow
_________________________________________________________________________

253.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: 1.2 mi E of Clareton on Wyo Hwy 430, just W of junction of Wyo Hwy 430 and Lance Creek.  Elev. 4100 ft.
T43N R65W S16.  
Very common along road. same as Evans 31; DNA voucher; 2n = 4 II Phenology: flowering. 

Gregory K. Brown, 2824.  6/13/1989. 		RM 785149	Barcode: RM0306728
     with Timothy Evans, Neil Snow
_________________________________________________________________________

254.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Vicinity of Beaver Rim, 16 mi N of Jeffrey City on Ore Road (Jeffrey City to Moneta Road).  Elev. 6520 ft.
T32N R91W S32.  
Gray-white gumbo clay. Small population. DNA voucher Phenology: buds. 

Gregory K. Brown, 2951.  6/4/1990. 		RM 785006	Barcode: RM0307029
     with Timothy Evans
_________________________________________________________________________

255.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: 2.5 mi NE of Upton on Wyo Hwy 116.  Elev. 4320 ft.
T48N R65W S24.  
Clay soil. Common in patches. DNA voucher Phenology: flowering. 

Gregory K. Brown, 2826.  6/13/1989. 		RM 785007	Barcode: RM0307019
     with Timothy Evans, Neil Snow
_________________________________________________________________________

256.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 21 mi N of Wyo Hwy 95/93 on County Road 31 (Ross Road), 3.2 mi S of County Road 34, ca 45 mi N of I-25 at Glenrock.  Elev. 5190 ft.
T38N R74W S36.  
Along road in narrow strip at upper edge of ditch and a few feet beyond. Small population. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2756.  6/18/1987. 		RM 785100	Barcode: RM0307020
     with Timothy Evans
_________________________________________________________________________

257.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: E of road, 11.9 mi S of Clareton on Clareton - Lance Creek Road.  Elev. 4080 ft.
T41N R66W S12.  
Broad flat, hard clay. Widely scattered. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2823.  6/13/1989. 		RM 785101	Barcode: RM0307021
     with Timothy Evans, Neil Snow
_________________________________________________________________________

258.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 1.5 mi W of Wyo Hwy 59 on County Road 34 to Betty Reservoir, above Betty Reservoir.  Elev. 4990 ft.
T39N R71W S5.  
Next to road and on north-facing slope of ridge above reservoir, light-tan soil. Very few, widely scattered plants on north side of ridge; none found on south-facing slope. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2752.  6/18/1987. 		RM 785105	Barcode: RM0307022
     with Timothy Evans
_________________________________________________________________________

259.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 2.6 mi W of Wyo Hwy 59 on County Road 34 to Betty Reservoir.  Elev. 4890 ft.
T39N R71W S6.  
Shallow roadside ditch, grass with scattered Artemisia tridentata. Two small populations; does not appear to be in flats beyond the ditch. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2753.  6/18/1987. 		RM 784942	Barcode: RM0307024
     with Timothy Evans
_________________________________________________________________________

260.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 1.5 mi W of Wyo Hwy 59 on County Road 34 to Betty Reservoir, above Betty Reservoir.  Elev. 4990 ft.
T39N R71W S5.  
Next to road and on north-facing slope of ridge above reservoir, light-tan soil. Very few, widely scattered plants on north side of ridge; none found on south-facing slope. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2752.  6/18/1987. 		RM 784941	Barcode: RM0307023
     with Timothy Evans
_________________________________________________________________________

261.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 18.4 mi W of Wyo Hwy 59 on County Road 34 (Betty Reservoir Road), 1.8 mi E of junction of County Roads 34 and 31 (Ross Road).  Elev. 5140 ft.
T38N R73W S7.  
In thin strip of upper portions of shallow roadside ditch. Common. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2755.  6/18/1987. 		RM 784944	Barcode: RM0307025
     with Timothy Evans
_________________________________________________________________________

262.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 0.9 mi S of U.S. Hwy 20-26 on County Road 212 (road to Gas Hills).  Elev. 5970 ft.
T36N R86W S30.  
Roadside flat, sandy gray clay with Artemisia tridentata. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2747.  6/17/1987. 		RM 784945
     with Timothy Evans
_________________________________________________________________________

263.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Pine Ridge, ca 2.6 mi N of Linch along Wyo Hwy 192.  Elev. 4860 ft.
T42N R78W S2.  
Common in patches. same as Brown 2838; 2n = 4 II Phenology: flowering & fruiting. 

Timothy Evans, 40.  6/14/1989. 		RM 784848	Barcode: RM0307053
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

264.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1.7 mi S of South Fork Powder River on County Road 112 (Lone Bear Road), ca 27 mi N of U.S. Hwy20/26.  Elev. 5270 ft.
T39N R82W S34.  
On slopes of more or less barren gray clay hills. Common in small patches. DNA voucher Phenology: flowering. 

Gregory K. Brown, 2971.  6/6/1990. 		RM 785151	Barcode: RM0307052
     with Timothy Evans
_________________________________________________________________________

265.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 2.6 mi W of Wyo Hwy 59 on County Road 34 to Betty Reservoir.  Elev. 4890 ft.
T39N R71W S6.  
Shallow roadside ditch, grass with scattered Artemisia tridentata. Two small populations; does not appear to be in flats beyond the ditch. 2n = 4 II Phenology: flowering. 

Gregory K. Brown, 2753.  6/18/1987. 		RM 785106	Barcode: RM0307051
     with Timothy Evans
_________________________________________________________________________

266.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Along Tisdale Road ca 0.1 mi W of I-25 at exit 235, ca 1/4 mi N of Natrona County, ca 47 air mi NNW of Casper.  Elev. 4850 ft.
T41N R80W S22.  
Clay soil with Atriplex, Xylorhiza, and Agropyron. 2n = 4 II Phenology: flowering. 

Timothy Evans, 41.  6/14/1989. 		RM 785107	Barcode: RM0307050
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

267.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Pine Ridge, ca 2.6 mi N of Linch along Wyo Hwy 192.  Elev. 4860 ft.
T42N R78W S2.  
Common in patches. 2n = 4 II Phenology: flowering & fruiting. 

Timothy Evans, 40.  6/14/1989. 		RM 785167	Barcode: RM0307049
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

268.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: E of road, 11.9 mi S of Clareton on Clareton - Lance Creek Road.  Elev. 4080 ft.
T41N R66W S12.  
Broad flat, hard clay. Widely scattered. same as Evans 30; 2n = 4 II Phenology: flowering. 

Gregory K. Brown, 2823.  6/13/1989. 		RM 784857	Barcode: RM0307048
     with Timothy Evans, Neil Snow
_________________________________________________________________________

269.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 21 mi N of Wyo Hwy 95/93 on County Road 31 (Ross Road), 3.2 mi S of County Road 34, ca 45 mi N of I-25 at Glenrock.  Elev. 5190 ft.
T38N R74W S36.  
Along road in narrow strip at upper edge of ditch and a few feet beyond. Small population. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2756.  6/18/1987. 		RM 784858	Barcode: RM0307047
     with Timothy Evans
_________________________________________________________________________

270.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Southern part of Bates Hole, 3.8 mi S of northern junction of Wyo Hwys 487 and 77 on east side of highway.  Elev. 6800 ft.
T28N R80W S27.  
Small flats and gentle slopes, gray gumbo clay. Common in small patches. 2n = 4 II Phenology: flowering. 

Gregory K. Brown, 2943.  5/23/1990. 		RM 785142	Barcode: RM0307027
_________________________________________________________________________

271.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Southern part of Bates Hole, 3.8 mi S of northern junction of Wyo Hwys 487 and 77 on east side of highway.  Elev. 6800 ft.
T28N R80W S27.  
Small flats and gentle slopes, gray gumbo clay. Common in small patches. 2n = 4 II Phenology: flowering. 

Gregory K. Brown, 2943.  5/23/1990. 		RM 785141	Barcode: RM0307028
_________________________________________________________________________

272.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1 mi NE of junction between County Road 201 (Poison Spider Road) and County Road 212, along County Road 212, 17 mi SW of County Road 212 junction with U.S. Hwy 20-26 at Waltman.  Elev. 6460 ft.
T34N R88W S28.  
Heavy clay-gray soil with widely scattered Atriplex, Xylorhiza, and Artemisia tridentata. Very common on flats. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2743.  6/17/1987. 		RM 784939	Barcode: RM0307046
     with Timothy Evans
_________________________________________________________________________

273.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1 mi NE of junction between County Road 201 (Poison Spider Road) and County Road 212, along County Road 212, 17 mi SW of County Road 212 junction with U.S. Hwy 20-26 at Waltman.  Elev. 6460 ft.
T34N R88W S28.  
Heavy clay-gray soil with widely scattered Atriplex, Xylorhiza, and Artemisia tridentata. Very common on flats. 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2743.  6/17/1987. 		RM 785127	Barcode: RM0307045
     with Timothy Evans
_________________________________________________________________________

274.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: 1.2 mi E of Clareton on Wyo Hwy 430, just W of junction of Wyo Hwy 430 and Lance Creek.  Elev. 4100 ft.
T43N R65W S16.  
Very common along road. same as Evans 31; 2n = 4 II Phenology: flowering. 

Gregory K. Brown, 2824.  6/13/1989. 		RM 785016	Barcode: RM0307044
     with Timothy Evans, Neil Snow
_________________________________________________________________________

275.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: 1.2 mi E of Clareton on Wyo Hwy 430, just W of junction of Wyo Hwy 430 and Lance Creek.  Elev. 4100 ft.
T43N R65W S16.  
Very common along road. same as Evans 31; 2n = 4 II Phenology: flowering. 

Gregory K. Brown, 2824.  6/13/1989. 		RM 784854	Barcode: RM0306821
     with Timothy Evans, Neil Snow
_________________________________________________________________________

276.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: E of road, 11.9 mi S of Clareton on Clareton - Lance Creek Road.  Elev. 4080 ft.
T41N R66W S12.  
Broad flat, hard clay. Widely scattered. same as Evans 30; 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2823.  6/13/1989. 		RM 785019	Barcode: RM0307043
     with Timothy Evans, Neil Snow
_________________________________________________________________________

277.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 9.3 mi E of Lance Creek (town) on Wyo Hwy 270.  Elev. 4440 ft.
T36N R64W S36.  
Clay soil. Common in small clusters. same as Evans 26; 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2818.  6/13/1989. 		RM 784855	Barcode: RM0307042
     with Timothy Evans, Neil Snow
_________________________________________________________________________

278.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Montana, Carter County: 6.8 mi N of Alzada on Mont Hwy 323.  Elev. 3390 ft.
T8S R60E S27.  
Roadside adjacent to cultivated field, heavy clay soil. Two small populations found. same as Evans 35; 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2829.  6/14/1989. 		RM 785115
     with Timothy Evans, Neil Snow
_________________________________________________________________________

279.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Montana, Carter County: 6.8 mi N of Alzada on Mont Hwy 323.  Elev. 3390 ft.
T8S R60E S27.  
Roadside adjacent to cultivated field, heavy clay soil. Two small populations found. same as Evans 35; 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2829.  6/14/1989. 		RM 785004
     with Timothy Evans, Neil Snow
_________________________________________________________________________

280.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Montana, Carter County: 6.8 mi N of Alzada on Mont Hwy 323.  Elev. 3390 ft.
T8S R60E S27.  
Roadside adjacent to cultivated field, heavy clay soil. Two small populations found. same as Evans 35; 2n = 4 II Phenology: flowering & fruiting. 

Gregory K. Brown, 2829.  6/14/1989. 		RM 784865
     with Timothy Evans, Neil Snow
_________________________________________________________________________

281.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Montana, Carter County: Along Mont Hwy 323, ca 6.8 mi N of Alzada.  Elev. 3390 ft.
T8S R60E S27.  
In small patches on both sides of road. same as Brown 2829; 2n = 4 II Phenology: flowering. 

Timothy Evans, 35.  6/14/1989. 		RM 784948
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

282.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Butte County: Along east side of U.S. Hwy 85, ca 7.9 mi NE of Belle Fourche.
Gravelly clay soil. In patches. same as Brown 2827; 2n = 4 II Phenology: flowering. 

Timothy Evans, 34.  6/13/1989. 		RM 784920	Barcode: RM0306883
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

283.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Butte County: 7.9 mi N of Belle Fourche on U.S. Hwy 85.
Rolling shortgrass prairie, roadsides, rocky-clay soil. Sporatic but widespread in patches. same as Evans 34 Phenology: flowering & fruiting. 

Gregory K. Brown, 2827.  6/13/1989. 		RM 784866	Barcode: RM0306884
     with Timothy Evans, Neil Snow
_________________________________________________________________________

284.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 5.8 mi N of Lance Creek (town) on Wyo Hwy 272, flats above Lance Creek.  Elev. 4270 ft.
T36N R65W S14.  
Clay roadside and flat, in disturbed soil. Common. same as Evans 27 Phenology: flowering & fruiting. 

Gregory K. Brown, 2819.  6/13/1989. 		RM 785103	Barcode: RM0306699
     with Timothy Evans, Neil Snow
_________________________________________________________________________

285.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Hills above Crow Creek, 15.8 mi N of Lance Creek (town) on extension of Wyo Hwy 272 to Clareton.  Elev. 4060 m.
T38N R65W S36.  
Clay soil with Artemisia tridentata and Opuntia. Widespread. same as Evans 28 Phenology: flowering. 

Gregory K. Brown, 2820.  6/13/1989. 		RM 785102	Barcode: RM0306711
     with Timothy Evans, Neil Snow
_________________________________________________________________________

286.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Hills above Crow Creek, 15.8 mi N of Lance Creek (town) on extension of Wyo Hwy 272 to Clareton.  Elev. 4060 m.
T38N R65W S36.  
Clay soil with Artemisia tridentata and Opuntia. Widespread. same as Evans 28 Phenology: flowering. 

Gregory K. Brown, 2820.  6/13/1989. 		RM 785003	Barcode: RM0306709
     with Timothy Evans, Neil Snow
_________________________________________________________________________

287.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Hills above Crow Creek, 15.8 mi N of Lance Creek (town) on extension of Wyo Hwy 272 to Clareton.  Elev. 4060 m.
T38N R65W S36.  
Clay soil with Artemisia tridentata and Opuntia. Widespread. same as Evans 28 Phenology: flowering. 

Gregory K. Brown, 2820.  6/13/1989. 		RM 784843	Barcode: RM0306710
     with Timothy Evans, Neil Snow
_________________________________________________________________________

288.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: 19.8 mi S of Kaycee on I-25, just N of I-25 at exit 235.  Elev. 4820 ft.
T41N R80W S22.  
In flat depressions, clay, Artemisia and Atriplex. Common. same as Evans 41 Phenology: flowering & fruiting. 

Gregory K. Brown, 2841.  6/14/1989. 		RM 785002	Barcode: RM0306698
     with Timothy Evans, Neil Snow
_________________________________________________________________________

289.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: 4.4 mi SE of Sussex on Wyo Hwy 192.  Elev. 4670 ft.
T43N R78W S22.  
In heavy clay along road above arroyo. Very common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2840.  6/14/1989. 		RM 785001	Barcode: RM0306697
     with Timothy Evans, Neil Snow
_________________________________________________________________________

290.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Campbell County: Along Wyo Hwy 59, 35.3 mi S of Gillette.  Elev. 5000 ft.
T44N R72W S14.  
Sagebrush steppe, in exposed clay areas. Common in patches. same as Brown 2837 Phenology: flowering. 

Timothy Evans, 38.  6/14/1989. 		RM 784842	Barcode: RM0306696
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

291.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Along County Road 112 (Lone Bear Road) S of Kaycee, ca 55 air mi NNW of Casper.  Elev. 4920 ft.
T42N R82W S22.  
In exposed heavy clay near top of eroded area. Phenology: flowering. 

Timothy Evans, 62.  6/6/1990. 		RM 784826	Barcode: RM0306695
     with Gregory K. Brown
_________________________________________________________________________

292.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Along Wyo Hwy 136, ca 20.5 mi ESE of Riverton.
T35N R93W S28.  
Very small population. Phenology: buds. 

Timothy Evans, 56.  6/5/1990. 		RM 784827	Barcode: RM0306694
     with Gregory K. Brown
_________________________________________________________________________

293.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Crook County: Off U.S. Hwy 14, ca 18.7 mi W of Devils Tower Junction.  Elev. 4200 ft.
T51N R67W S33.  
Sagebrush steppe with Opuntia and Koeleria. Common in patches along both sides of highway. same as Brown 2836 Phenology: flowering & fruiting. 

Timothy Evans, 37.  6/14/1989. 		RM 784828	Barcode: RM0306693
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

294.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: 10.3 mi N of Willow Creek, 9.5 mi N of Natrona County.  Elev. 4990 ft.
T42N R82W S14.  
Sandy-clay flats below rim to the north. Common. Phenology: flowering. 

Gregory K. Brown, 2967.  6/6/1990. 		RM 784829	Barcode: RM0306692
     with Timothy Evans
_________________________________________________________________________

295.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: N of U.S. Hwy 20-26 across from Hells Half Acre.  Elev. 6000 ft.
T36N R86W S36.  
Badlands. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2748.  6/17/1987. 		RM 784830	Barcode: RM0306700
     with Timothy Evans
_________________________________________________________________________

296.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 13.5 mi SW of junction between County Road 212 (road to Gas Hills) and U.S. Hwy 20-26 along County Road 212.  Elev. 6300 ft.
T34N R88W S10.  
Roadside flat, heavy gray clay with widely scattered Atriplex and Artemisia tridentata. Phenology: flowering & fruiting. 

Gregory K. Brown, 2745.  6/17/1987. 		RM 784940	Barcode: RM0306687
     with Timothy Evans
_________________________________________________________________________

297.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: 4.7 mi W of Wyo Hwy 59 on County Road 34, just N of Betty Reservoir Dam.  Elev. 4750 ft.
T40N R72W S35.  
Roadside. same population as Brown 2687 Phenology: flowering & fruiting. 

Gregory K. Brown, 2754.  6/18/1987. 		RM 784943	Barcode: RM0306686
     with Timothy Evans
_________________________________________________________________________

298.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 10.5 mi SW of junction between County Road 212 (road to Gas Hills) and U.S. Hwy 20-26 along County Road 212.  Elev. 6220 ft.
T35N R88W S25.  
Small erosional outcrop next to west side of road, on outcrop only. Common on outcrop only; plants very robust at top. Phenology: flowering & fruiting. 

Gregory K. Brown, 2746.  6/17/1987. 		RM 784946	Barcode: RM0306685
     with Timothy Evans
_________________________________________________________________________

299.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Along east side of Wyo Hwy 116, ca 2.5 mi NE of Upton.  Elev. 4320 ft.
T48N R69W S24.  
Clay. Common in patches. same as Brown 2826 Phenology: flowering & fruiting. 

Timothy Evans, 33.  6/13/1989. 		RM 784947	Barcode: RM0306684
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

300.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: In Gas Hills Uranium District, along Ore Road, ca 22 mi N of Jeffrey City.  Elev. 6480 ft.
T32N R91W S1.  
Along roadside in disturbed clay. Small population. Phenology: buds. 

Timothy Evans, 55.  6/4/1990. 		RM 784952	Barcode: RM0306683
     with Gregory K. Brown
_________________________________________________________________________

301.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Along Wyo Hwy 77, 3.2 mi S of junction of Wyo Hwys 487 and 77.  Elev. 6850 ft.
T28N R80W S22.  
Common in patches. Phenology: flowering. 

Timothy Evans, 42.  6/14/1989. 		RM 784953	Barcode: RM0306691
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

302.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Along continuation (dirt road, North Lance Creek Road) of Wyo Hwy 272, ca 37 mi N of Lance Creek (town).  Elev. 4400 ft.
T41N R65W S7.  
Clay. Scattered. Phenology: flowering & fruiting. 

Timothy Evans, 30.  6/13/1989. 		RM 784919	Barcode: RM0306690
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

303.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: N of Betty Reservoir, 5 mi W of Wyo Hwy 59 on County Road 34.  Elev. 4750 ft.
T40N R72W S35.  
Plants common only in small patches; no sign of grazing in areas between road and fence where the plants occur; past flower, fruit dispersed. Phenology: fruiting. 

Gregory K. Brown, 2687.  8/9/1984. 		RM 785093	Barcode: RM0306682
_________________________________________________________________________

304.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: West of I-25, 3.2 mi N of junction of I-25 and U.S. Hwy 18/20.  Elev. 4890 ft.
T31N R70W S3.  
Lower portions of eroded "badlands", dry heavy clayey soil, light gray. Phenology: fruiting. 

Gregory K. Brown, 2688.  8/10/1984. 		RM 785094	Barcode: RM0306681
_________________________________________________________________________

305.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along continuation (dirt road, Lance Creek Road) of Wyo Hwy 272, ca 21.8 mi N of Lance Creek (town).  Elev. 4080 ft.
T38N R65W S2.  
In dry clay on west side of road. Phenology: flowering. 

Timothy Evans, 29.  6/13/1989. 		RM 785166	Barcode: RM0306680
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

306.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along continuation (dirt road, Lance Creek Road) of Wyo Hwy 272, ca 1.5 mi N of Cow Creek (town), ca 15.8 mi N of Lance Creek (town).  Elev. 4200 ft.
T38N R65W S14.  
In dry clay on west side of road. Phenology: flowering. 

Timothy Evans, 28.  6/13/1989. 		RM 785165	Barcode: RM0306679
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

307.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along Wyo Hwy 270, ca 9.1 mi E of Lance Creek (town), ca 92 air mi ENE of Casper.  Elev. 4350 ft.
T36N R64W S36.  
Undisturbed prairie, exposed clay soil. Common in widely scattered patches. Phenology: flowering & fruiting. 

Timothy Evans, 26.  6/13/1989. 		RM 785168	Barcode: RM0306678
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

308.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Southern part of Bates Hole, 3.8 mi S of northern junction of Wyo Hwys 487 and 77 on east side of highway.  Elev. 6800 ft.
T28N R80W S27.  
Small flats and gentle slopes, gray gumbo clay. Common in small patches. Phenology: vegetative only. 

Gregory K. Brown, 2943.  5/23/1990. 		RM 785174	Barcode: RM0306677
_________________________________________________________________________

309.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Bates Hole, 0.6 mi S of northern junction of Wyo Hwys 487 and 77.  Elev. 6470 ft.
T28N R80W S10.  
Clay soil. Common. same site as Brown 2692, 2734, 2735 Phenology: vegetative only. 

Gregory K. Brown, 2942.  5/23/1990. 		RM 785175	Barcode: RM0306676
_________________________________________________________________________

310.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 22.2 mi N of Lance Creek (town) on west side of extension of Wyo Hwy 272 to Clareton.  Elev. 4060 ft.
T38N R65W S2.  
Badlands formation. Common. Phenology: flowering. 

Gregory K. Brown, 2822.  6/13/1989. 		RM 785018	Barcode: RM0306675
     with Timothy Evans, Neil Snow
_________________________________________________________________________

311.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 8 mi S of South Fork Powder River on east side of County Road 112 (Lone Bear Road), ca 21 mi N of U.S. Hwy 20/26.  Elev. 5370 ft.
T38N R81W S30.  
On slight west-facing gray clay slope, above alkaline drainage and stock pond. Phenology: flowering. 

Gregory K. Brown, 2972.  6/6/1990. 		RM 785015	Barcode: RM0306674
     with Timothy Evans
_________________________________________________________________________

312.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Kendrick Irrigation Project W of Casper, vicinity of Rasmus Lee Lake, on slope above lake to the NW, just below irrigation canal.  Elev. 5460 ft.
T32N R82W S14.  
Single population. Phenology: flowering. 

Gregory K. Brown, 2770.  6/2/1988. 		RM 785014	Barcode: RM0306673
     with Ronald L. Hartman
_________________________________________________________________________

313.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: Along Wyo Hwy 270, ca 9.1 mi E of Lance Creek (town), ca 92 air mi ENE of Casper.  Elev. 4350 ft.
T36N R64W S36.  
Undisturbed prairie, exposed clay soil. Common in widely scattered patches. Phenology: flowering. 

Timothy Evans, 26.  6/13/1989. 		RM 784849	Barcode: RM0306672
     with Gregory K. Brown, Neil Snow
_________________________________________________________________________

314.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Kendrick Irrigation Project W of Casper, vicinity of Rasmus Lee Lake, on slope above lake to the NW, just below irrigation canal.  Elev. 5460 ft.
T32N R82W S14.  
Single population. Phenology: flowering. 

Gregory K. Brown, 2770.  6/2/1988. 		RM 784850	Barcode: RM0306671
     with Ronald L. Hartman
_________________________________________________________________________

315.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Kendrick Irrigation Project W of Casper, vicinity of Rasmus Lee Lake, top of small ridge just S of lake.  Elev. 5440 ft.
T32N R82W S13.  
Common in patches. Phenology: flowering. 

Gregory K. Brown, 2769.  6/2/1988. 		RM 784851	Barcode: RM0306670
     with Ronald L. Hartman
_________________________________________________________________________

316.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1.7 mi S of South Fork Powder River on County Road 112 (Lone Bear Road), ca 27 mi N of U.S. Hwy20/26.  Elev. 5270 ft.
T39N R82W S34.  
On slopes of more or less barren gray clay hills. Common in small patches. Phenology: flowering. 

Gregory K. Brown, 2971.  6/6/1990. 		RM 784853	Barcode: RM0306669
     with Timothy Evans
_________________________________________________________________________

317.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 8 mi S of South Fork Powder River on east side of County Road 112 (Lone Bear Road), ca 21 mi N of U.S. Hwy 20/26.  Elev. 5370 ft.
T38N R81W S30.  
On slight west-facing gray clay slope, above alkaline drainage and stock pond. Very common. Phenology: flowering. 

Gregory K. Brown, 2972.  6/6/1990. 		RM 784852	Barcode: RM0306758
     with Timothy Evans
_________________________________________________________________________

318.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Niobrara County: 22.2 mi N of Lance Creek (town) on west side of extension of Wyo Hwy 272 to Clareton.  Elev. 4060 ft.
T38N R65W S2.  
Badlands formation. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2822.  6/13/1989. 		RM 784856	Barcode: RM0306757
     with Timothy Evans, Neil Snow
_________________________________________________________________________

319.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Butte County: 7.9 mi N of Belle Fourche on U.S. Hwy 85.
Rolling shortgrass prairie, roadsides, rocky-clay soil. Sporatic but widespread in patches. Phenology: flowering. 

Gregory K. Brown, 2827.  6/13/1989. 		RM 785104	Barcode: RM0306885
     with Timothy Evans, Neil Snow
_________________________________________________________________________

320.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1 mi NE of junction between County Road 201 (Poison Spider Road) and County Road 212, along County Road 212, 17 mi SW of County Road 212 junction with U.S. Hwy 20-26 at Waltman.  Elev. 6460 ft.
T34N R88W S28.  
Heavy clay-gray soil with widely scattered Atriplex, Xylorhiza, and Artemisia tridentata. Very common on flats. Phenology: flowering & fruiting. 

Gregory K. Brown, 2743.  6/17/1987. 		RM 785110	Barcode: RM0306746
     with Timothy Evans
_________________________________________________________________________

321.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 4.9 mi S of Johnson County on County Road 112 (Lone Bear Road), 7.9 mi N of South Fork Powder River.  Elev. 5060 ft.
T40N R82W S21.  
On roadside flats, gray clay. Common in small clusters. Phenology: flowering. 

Gregory K. Brown, 2768.  6/6/1990. 		RM 785112	Barcode: RM0306745
     with Timothy Evans
_________________________________________________________________________

322.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: 4 mi N of Lost Cabin on Lysite-Ten Sleep Road.  Elev. 5700 ft.
T39N R90W S23.  
On flanks and at base of gray-red, highly eroded small bluffs. Common. Phenology: flowering. 

Gregory K. Brown, 2960.  6/5/1990. 		RM 785111	Barcode: RM0306744
     with Timothy Evans
_________________________________________________________________________

323.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1.2 mi N of South Fork Powder River on County Road 112 (Lone Bear Road).  Elev. 5160 ft.
T39N R82W S21.  
Patchy gray clay barrens. Common. Phenology: flowering. 

Gregory K. Brown, 2970.  6/6/1990. 		RM 785113	Barcode: RM0306743
     with Timothy Evans
_________________________________________________________________________

324.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: Pine Ridge, 2.6 mi N of Linch on Wyo Hwy 192.  Elev. 4860 ft.
T42N R78W S2.  
Along roadside N of ridge. Common. same as Evans 40 Phenology: flowering & fruiting. 

Gregory K. Brown, 2838.  6/14/1989. 		RM 785114	Barcode: RM0306742
     with Timothy Evans, Neil Snow
_________________________________________________________________________

325.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Kendrick Irrigation Project W of Casper, vicinity of Rasmus Lee Lake, on slope above lake to the NW, just below irrigation canal.  Elev. 5460 ft.
T32N R82W S14.  
Single population. Phenology: flowering. 

Gregory K. Brown, 2770.  6/2/1988. 		RM 785116	Barcode: RM0306741
     with Ronald L. Hartman
_________________________________________________________________________

326.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 8 mi S of South Fork Powder River on east side of County Road 112 (Lone Bear Road), ca 21 mi N of U.S. Hwy 20/26.  Elev. 5370 ft.
T38N R81W S30.  
On slight west-facing gray clay slope, above alkaline drainage and stock pond. Very common. Phenology: flowering. 

Gregory K. Brown, 2972.  6/6/1990. 		RM 785118	Barcode: RM0306740
     with Timothy Evans
_________________________________________________________________________

327.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Kendrick Irrigation Project W of Casper, vicinity of Rasmus Lee Lake, top of small ridge just S of lake.  Elev. 5440 ft.
T32N R82W S13.  
Common in patches. Phenology: flowering. 

Gregory K. Brown, 2769.  6/2/1988. 		RM 785117	Barcode: RM0306739
     with Ronald L. Hartman
_________________________________________________________________________

328.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Bates Hole, 23 mi S of junction of Wyo Hwys 220 and 487, ca 2.3 mi N of Carbon County.  Elev. 6280 ft.
T29N R80W S28.  
Roadside slopes of dry gray clayey soil. Phenology: fruiting. 

Gregory K. Brown, 2692.  8/10/1984. 		RM 785119	Barcode: RM0306738
_________________________________________________________________________

329.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 6.1 mi W of Powder River on north side of U.S. 20/26 just opposite of Hells Half Acre.  Elev. 6080 ft.
T36N R86W S36.  
Steep, bare, highly eroded badlands; soil color ranging from white-gray-red; very dry; lower slopes and spines of small ridges. Common. Phenology: fruiting. 

Gregory K. Brown, 2691.  8/10/1984. 		RM 785078	Barcode: RM0306737
_________________________________________________________________________

330.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: 2.5 mi NE of Upton on Wyo Hwy 116.  Elev. 4320 ft.
T48N R65W S24.  
Clay soil. Common in patches. same as Evans 33 Phenology: flowering & fruiting. 

Gregory K. Brown, 2826.  6/13/1989. 		RM 785080	Barcode: RM0306747
     with Timothy Evans, Neil Snow
_________________________________________________________________________

331.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Thunder Basin National Grassland: 6.2 mi SW of Upton on Wyo Hwy 116.  Elev. 4370 ft.
T47N R66W S13.  
Disturbed roadsides, clay soil. Scattered. same as Evans 32 Phenology: flowering & fruiting. 

Gregory K. Brown, 2825.  6/13/1989. 		RM 785079	Barcode: RM0306748
     with Timothy Evans, Neil Snow
_________________________________________________________________________

332.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 1 mi NE of junction between County Road 201 (Poison Spider Road) and County Road 212, along County Road 212, 17 mi SW of County Road 212 junction with U.S. Hwy 20-26 at Waltman.  Elev. 6460 ft.
T34N R88W S28.  
Heavy clay-gray soil with widely scattered Atriplex, Xylorhiza, and Artemisia tridentata. Very common on flats. Phenology: flowering & fruiting. 

Gregory K. Brown, 2743.  6/17/1987. 		RM 785180	Barcode: RM0306765
     with Timothy Evans
_________________________________________________________________________

333.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 11.2 mi S of U.S. Hwy 20-26 on County Road 209 (S of "town" of Powder River), 2 mi from junction of County Roads 211 (Powder River Road) and 209.
Gray clay, roadside. Small population. Phenology: flowering & fruiting. 

Gregory K. Brown, 2750.  6/18/1987. 		RM 785139	Barcode: RM0306764
     with Timothy Evans
_________________________________________________________________________

334.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: 9.4 mi S of U.S. Hwy 20-26 on County Road 209 (S of "town" of Powder River); 0.2 mi from junction of County Roads 211 (Powder River Road) and 209.
Gray clay flats and crests of eroded hills. Locally common. Phenology: flowering & fruiting. 

Gregory K. Brown, 2749.  6/18/1987. 		RM 785140	Barcode: RM0306763
     with Timothy Evans
_________________________________________________________________________

335.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Johnson County: 19.8 mi S of Kaycee on I-25, just N of I-25 at exit 235.  Elev. 4820 ft.
T41N R80W S22.  
In flat depressions, clay, Artemisia and Atriplex. Common. same as Evans 41 Phenology: flowering. 

Gregory K. Brown, 2841.  6/14/1989. 		RM 785144	Barcode: RM0306762
     with Timothy Evans, Neil Snow
_________________________________________________________________________

336.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: Along Wyo Hwy 487, 1.5 mi SE of northern junction of Wyo Hwys 487 and 77.  Elev. 6530 ft.
T28N R80W S12.  
On gray clay banks. Common in patches; plants sterile. Phenology: vegetative only. 

Gregory K. Brown, 2940.  5/23/1990. 		RM 785143	Barcode: RM0306761
_________________________________________________________________________

337.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Vicinity of Beaver Rim, 16 mi N of Jeffrey City on Ore Road (Jeffrey City to Moneta Road).  Elev. 6520 ft.
T32N R91W S32.  
Gray-white gumbo clay. Small population. Phenology: buds. 

Gregory K. Brown, 2951.  6/4/1990. 		RM 785152	Barcode: RM0306760
     with Timothy Evans
_________________________________________________________________________

338.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Converse County: N of Betty Reservoir, 5 mi W of Wyo Hwy 59 on County Road 34.  Elev. 4750 ft.
T40N R72W S35.  
Small flats. Plants common only in small patches; no sign of grazing in areas between road and fence where the plants occur; past flower, fruit dispersed. Phenology: fruiting. 

Gregory K. Brown, 2687.  8/10/1984. 		RM 785109	Barcode: RM0306759
_________________________________________________________________________

339.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County:   Elev. 5900 ft.
T31N R96W S34 NW1/4 NW1/4.  
Silty soil of roadside (dirt road). Phenology: flowering & fruiting. 

George P. Jones, s.n..  6/22/1989. 		RM 785145	Barcode: RM0306756
_________________________________________________________________________

340.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: N of Beaver Rim.  Elev. 6500 ft.
T31N R95W S18 SW1/4.  
West-facing rocky slope. Common and widespread in hills. Phenology: flowering. 

George P. Jones, s.n..  6/13/1989. 		RM 785147	Barcode: RM0306755
_________________________________________________________________________

341.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Beaver Creek Road.  Elev. 5650 ft.
T32N R96W S29 NW1/4 NW1/4.  
Shale hillside. Phenology: flowering & fruiting. 

George P. Jones, s.n..  6/22/1989. 		RM 785146	Barcode: RM0306754
_________________________________________________________________________

342.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Beaver Creek Oil Field Road, ca 0.5 mi S of Wyo Hwy 135.  Elev. 5450 ft.
T34N R96W S35.  
Phenology: flowering. 

George P. Jones, s.n..  6/22/1989. 		RM 785148	Barcode: RM0306753
_________________________________________________________________________

343.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Fremont County: Wind River Basin: east side of Ocean Lake, ca 3 air mi SW of Midvale.  Elev. 5260-5270 ft.
T2N R3E S31.  43.196 N, 108.866 W; uncertainty 1 mi..  
Sagebrush grassland. Phenology: flowering & fruiting. 

June Haines, 7169.  6/21/1987. 		RM 785177	Barcode: RM0306750
     with Georgia Haines
_________________________________________________________________________

344.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Weston County: Ca 2.5 mi NE of Osage.  Elev. 4600 ft.
44 0.6' N, 104 23' W; unknown, , Specimen Label.  
Clay slope, with Xanthisma, Atriplex. Flower yellow. Phenology: flowering & fruiting. 

Robert D. Dorn, 11902.  6/22/2017. 		RM 940069	Barcode: RM0112378
_________________________________________________________________________

345.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., South Dakota, Fall River County: Buffalo Gap National Grassland and Vicinity: ca 11 air mi WSW of Edgemont and 2-2.5 mi S of U.S. Hwy 18.  Elev. 3200 ft.
T9S R1E S18 N1/2.  43 16.29' N, 104 3.34' W; GPS Reading.  
Shale slopes and draw bottom. Phenology: flowering. 

Grace M. Kostel, 1942.  6/11/2004. 		RM 957401	Barcode: RM0209940
_________________________________________________________________________

346.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Natrona County: Ca 2.1 mi S of junction U.S. Hwy 20/26 and County Road 210 (Oil Camp Road) on 210.  Elev. 1790 m.
42 59.879' N, 106 58.026' W; unknown, , Specimen Label.  
Barren clay flats west of road. Common. Phenology: flowering & fruiting. 

Gregory K. Brown, 4189.  7/22/2013. 		RM 921882	Barcode: RM0306689
_________________________________________________________________________

347.  Oönopsis multicaulis (Nutt.) Greene 				Asteraceae

U.S.A., Wyoming, Carbon County: 3.6 mi S of the north junction of Wyo Hwy 487 and Wyo Hwy 77, along 77.
Roadside near cattle loading corral. Small population. Phenology: flowering & fruiting. 

Gregory K. Brown, 5052.  7/17/2014. 		RM 921877	Barcode: RM0306688
_________________________________________________________________________