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

Database Search Results

120 matching records found (of 120).
Search query: Genus begins with Parthenium, Species begins with alpinum, (search polygon not defined)
Sorted by: Scientific Name

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1.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Costilla County: Between Jaroso and Antonito.
On rocky knoll with Astragalus aretioides and Eriogonum sp. Phenology: vegetative only. 

Panayoti Kelaidis, s.n..  6/10/1990. 		RM 791889
     with Gwen Kelaidis, Dean & Patty Swift, Josef Halda, Kurt Bluemel
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2.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: Satanka Formation: 4 mi W of Alcova on Wyo Hwy 220.  Elev. 5400 ft.
TN R83W S21.  42.5568 N, 106.7878 W; NAD 83, uncertainty 1 mi., Digital Map.  
On reddish clayey soil of the Satanka formation, on the steep grade. Seeds collected 30 May 1949 Phenology: flowering & fruiting. 

C. L. Porter, 4425.  5/9/1948. 		RM 211223	Barcode: RM0307140
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3.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Niobrara County: 5 mi W of Lusk on U.S. Hwy 20.  Elev. 5100 ft.
T32N R64W S16.  42.7477 N, 104.5445 W; NAD 83, uncertainty 1 mi., Digital Map.  
Common, dry marly knolls and ridges, volcanic ash deposits of Miocene age. Phenology: flowering. 

C. L. Porter, 4855.  4/23/1949. 		RM 215135	Barcode: RM0307139
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4.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: 3 mi W of Alcova.  Elev. 6400 ft.
T30N R83W S21.  42.5576 N, 106.7859 W; NAD 83, uncertainty 1 mi., Digital Map.  
Red sandy-clay soil, Satanka formation. Phenology: flowering & fruiting. 

C. L. Porter, 6653.  5/27/1955. 		RM 247834	Barcode: RM0307137
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5.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Guernsey Lake Reservoir on the North Platte River, east side.  Elev. 4400 ft.
T27N R67W S16.  42.3191 N, 104.7756 W; NAD 83, uncertainty 1 mi., Digital Map.  
Locally abundant on limestone and shale of the Guernsey formation. Phenology: flowering & fruiting. 

C. L. Porter, 7248.  5/12/1957. 		RM 253840	Barcode: RM0307138
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6.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., New Mexico, McKinley County: Ca 5 mi NE of Thoreau on Hwy 57: on remnant natural edges on S-side of Large quarry in Todilto Limestone.  Elev. 7300 ft.
T14N R12W S17.  
Flat windy ridge; tan limy sands with limestone gravel; with Yucca angustissima, Eriogonum shockleyi, Lesquerella fendleri, Gilia rigidula ssp. acerosa, Hymenoxys argentea, and stunted Pinus edulis; locally abundant. Phenology: flowering & fruiting. 

Robert C. Sivinski, s.n..  6/11/1997. 		RM 618432
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7.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 20 mi E of Wheatland.  Elev. 5000 ft.
T25N R65W S8.  42.1513 N, 104.6756 W; NAD 83, uncertainty 1 mi., Digital Map.  
Locally abundant, dry, sandy, limestone outcrops. Phenology: vegetative only. 

C. L. Porter, 7990.  8/4/1959. 		RM 260137	Barcode: RM0307136
     with Marjorie W. Porter
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8.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Eastern Foothills of the Laramie Range: N of Wyo Hwy 34, ca 19 mi SW of Wheatland.  Elev. 5220-5430 ft.
T22N R69W S6 N1/2; SW1/4 and .  415435 N, 105094 W.  
Gravelly foothills terrace incised by drainages, on gravelly loam along rims and wind-exposed microhabitat; associated with Astragalus sericoleucus, Phlox muscoides, Musineon divaricatum, Bouteloua gracilis. Phenology: flowering. 

Bonnie Heidel, 2164.  5/4/2002. 		RM 745682	Barcode: RM0307115
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9.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Hartville Uplift: northern end of Hartville Hills, divide between Willow Creek and Muskrat Creek, ca 4 air mi E of Wyo Hwy 270, ca 13 air mi S of Manville.  Elev. 6000 ft.
T30N R65W S12 NE1/4 SW1/4.  42.5854 N, 104.6043 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Grasslands with some bare ground, rocky, limestone soil on ridgecrest. Phenology: flowering & fruiting. 

Hollis Marriott, 11329.  5/27/1991. 		RM 710114	Barcode: RM0307254
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10.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Hartville Uplift: northern end of Hartville Hills, divide between Willow Creek and Muskrat Creek, ca 4 air mi E of Wyo Hwy 270, ca 13 air mi S of Manville.  Elev. 6000 ft.
T30N R65W S12 NE1/4 SW1/4.  42.5854 N, 104.6043 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Grasslands with some bare ground, rocky, limestone soil on ridgecrest. Phenology: flowering & fruiting. 

Hollis Marriott, 11329.  5/27/1991. 		RM 710114
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11.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: 2 mi W of Alcova.  Elev. 5700 ft.
42.5345 N, 106.7953 W; NAD 83, uncertainty 2 mi., Nat. Geog. TOPO!.  
Gravelly slope with Phlox, Astragalus. Phenology: flowering. 

Robert D. Dorn, 2863.  4/28/1977. 		RM 301523	Barcode: RM0307258
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12.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Carbon County: Ca 2 mi S of Seminoe Dam.  Elev. 6300 ft.
42.1306 N, 106.9203 W; NAD 83, uncertainty 1 mi., Nat. Geog. TOPO!.  
Rocky calcareous ridge with Phlox, Astragalus. Phenology: flowering. 

Robert D. Dorn, 2875.  5/14/1977. 		RM 301518	Barcode: RM0307252
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13.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Goshen County: Round Top ca 12 mi NE of Guernsey.  Elev. 4800 ft.
T28N R64W S20 SE1/4.  42.3832 N, 104.5656 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Rocky calcareous slope with Erigeron ochroleucus and Phlox alyssifolia. Plants matted; corolla white. Phenology: flowering. 

Robert D. Dorn, 3417.  5/2/1980. 		RM 329501	Barcode: RM0307253
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14.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Goshen County: 3 mi WNW of Ft. Laramie.  Elev. 4300 ft.
T26N R64W S17 SW1/4.  42.2226 N, 104.5726 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Limey-sandstone ledges with Phlox hoodii. Phenology: flowering. 

Robert D. Dorn, 5860.  5/10/1995. 		RM 600392	Barcode: RM0307120
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15.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 15 mi SW of Wheatland.  Elev. 5400 ft.
T23N R70W S36 NE1/4.  41.9226 N, 105.1864 W.  
Rocky ridge with Astragalus spatulatus and Hymenoxys. Phenology: flowering. 

Robert D. Dorn, 5878.  5/21/1995. 		RM 600621	Barcode: RM0307119
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16.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi N of Wheatland.  Elev. 4600 ft.
T26N R67W S31 South1/2 of SW1/4.  42.1832 N, 104.94 W.  
Cobbley ridge with Arenaria hookeri and Cryptantha cana. Phenology: flowering. 

Robert D. Dorn, 7902.  5/11/1999. 		RM 642846	Barcode: RM0307241
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17.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi N of Wheatland.  Elev. 4600 ft.
T25N R67W S6 NE1/4 of NW1/4.  42.1689 N, 104.94 W.  
Cobbley ridge with Astragalus sericoleucus and A. gilviflorus. Phenology: flowering. 

Robert D. Dorn, 7903.  5/11/1999. 		RM 642849	Barcode: RM0307126
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18.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi NNE of Wheatland.  Elev. 4700 ft.
T25N R67W S7 NE1/4 of NE1/4.  42.1546 N, 104.94 W.  
Cobbley ridge with Astragalus sericoleucus and Cryptantha cana. Phenology: flowering. 

Robert D. Dorn, 7904.  5/11/1999. 		RM 642850	Barcode: RM0307123
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19.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi NNE of Wheatland.  Elev. 4700 ft.
T25N R67W S8 NE1/4 of SW1/4.  42.1546 N, 104.9205 W.  
Cobbley ridge with Astragalus sericoleucus and Cryptantha cana. Phenology: flowering. 

Robert D. Dorn, 7905.  5/11/1999. 		RM 642851	Barcode: RM0307134
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20.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 5 mi NE of Wheatland.  Elev. 4500 ft.
T25N R67W S28 NE1/4 of NE1/4.  42.1115 N, 104.9009 W.  
Cobbley knob with Paronychia and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7907.  5/11/1999. 		RM 642848	Barcode: RM0307147
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21.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 5 mi SW of Glendo.  Elev. 4900 ft.
T29N R69W S35 NE1/4 of SE1/4.  42.4421 N, 105.099 W.  
Chalky outcrop with Astragalus spatulatus and Senecio canus. Phenology: flowering. 

Robert D. Dorn, 7908.  5/12/1999. 		RM 642847	Barcode: RM0307244
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22.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 15 mi NNW of Wheatland.  Elev. 4900 ft.
T27N R68W S31 SW1/4 of NE1/4.  42.2693 N, 105.0575 W.  
Rocky slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7910.  5/12/1999. 		RM 642842	Barcode: RM0307125
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23.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 13 mi NNW of Whealtand.  Elev. 5000 ft.
T26N R68W S5 NE1/4 of SE1/4.  42.2549 N, 105.0379 W.  
Rocky slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7911.  5/12/1999. 		RM 642841	Barcode: RM0307124
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24.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 4 mi SE of Wheatland.  Elev. 4800 ft.
T24N R67W S27 SE1/4 of NW1/4.  42.0251 N, 104.8756 W.  
Gravelly slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7912.  5/12/1999. 		RM 642840	Barcode: RM0307127
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25.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 4.5 mi SE of Wheatland.  Elev. 4800 ft.
T24N R67W S34 SE1/4 NW1/4.  42.0095 N, 104.8769 W; NAD 83, uncertainty 700 ft., Nat. Geog. TOPO!.  
Limestone outcrop with Cryptantha cana and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7913.  5/12/1999. 		RM 642839	Barcode: RM0307262
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26.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 5 mi SE of Wheatland.  Elev. 4900 ft.
T23N R67W S3 NE1/4 of NW1/4.  41.9958 N, 104.8756 W.  
Sandstone-limestone outcrop with Arenaria hookeri and Eriogonum. Phenology: flowering. 

Robert D. Dorn, 7914.  5/12/1999. 		RM 642838	Barcode: RM0307118
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27.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 6 mi SE of Wheatland.  Elev. 4800 ft.
T23N R67W S10 NE1/4 of NW1/4.  41.9811 N, 104.8756 W.  
Gravelly ridge with Haplopappus nuttallii and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7915.  5/12/1999. 		RM 642837	Barcode: RM0307261
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28.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi SE of Wheatland.  Elev. 4900 ft.
T23N R67W S22 SW1/4 of NE1/4.  41.9518 N, 104.8756 W.  
Gravelly slope with Paronychia and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7916.  5/12/1999. 		RM 642836	Barcode: RM0307146
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29.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi NW of Chugwater.  Elev. 5400 ft.
T21N R68W S12 SW1/4 of NW1/4.  41.8052 N, 104.9531 W.  
Rocky ridge with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7918.  5/13/1999. 		RM 642834	Barcode: RM0307122
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30.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi NW of Chugwater.  Elev. 5500 ft.
T21N R68W S2 NE1/4 of SE1/4.  41.8199 N, 104.9725 W.  
Rocky ridge with Haplopappus nuttallii and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7920.  5/13/1999. 		RM 642832	Barcode: RM0307117
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31.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8.5 mi NW of Chugwater.  Elev. 5600 ft.
T22N R68W S35 W1/2 of SE1/4 of SE1/4.  41.8345 N, 104.9725 W.  
Mountain mahogany with Viola nuttallii and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7921.  5/13/1999. 		RM 642831	Barcode: RM0307116
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32.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 9 mi NW of Chugwater.  Elev. 5500 ft.
T22N R68W S26 N1/2 of SE1/4.  41.8492 N, 104.9725 W.  
Rocky slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7923.  5/13/1999. 		RM 642829	Barcode: RM0307263
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33.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 10 mi NW of Chugwater.  Elev. 5400 ft.
T22N R68W S24 SW1/4 of NE1/4 of S1/4.  41.8638 N, 104.9531 W.  
Gravelly grassland with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7924.  5/13/1999. 		RM 642843	Barcode: RM0307243
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34.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7.5 mi WNW of Chugwater.  Elev. 5600 ft.
T21N R68W S14 NE1/4 of NE1/4.  41.7905 N, 104.9725 W.  
Rocky ridge with Artemisia frigida and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7926.  5/13/1999. 		RM 642865	Barcode: RM0307242
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35.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi W of Chugwater.  Elev. 5700 ft.
T21N R68W S23 E1/2 of NE1/4.  41.7759 N, 104.9725 W.  
Rocky ridge with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7927.  5/13/1999. 		RM 642866	Barcode: RM0307135
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36.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi W of Chugwater.  Elev. 5700 ft.
T21N R68W S26 NE1/4 of NE1/4.  41.7612 N, 104.9725 W.  
Rocky ridge with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7928.  5/13/1999. 		RM 642867	Barcode: RM0307260
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37.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 15 mi NE of Wheatland.  Elev. 4800 ft.
T25N R65W S16 SW1/4.  42.1402 N, 104.666 W.  
Rocky limestone ridge with Cercocarpus and Arenaria hookeri. Phenology: flowering. 

Robert D. Dorn, 7929.  5/18/1999. 		RM 624868	Barcode: RM0307148
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38.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Goshen County: Fort Laramie National Historic Site.  Elev. 4400 ft.
T26N R64W S20 N1/2 N1/2 N1/2.  42 13.1' N, 104 31' W; unknown, , GPS reading.  
Rocky ridge with Paronychia and Cryptantha cana. Uncommon somewhat mat forming. Phenology: vegetative only. 

Robert D. Dorn, 9701.  6/5/2003. 		RM 741272	Barcode: RM0307245
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39.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southeast Plains: Hartville Uplift: summit of uplift ca 3/4 air mi N of Chicago Mine.  Elev. 5300 ft.
T28N R65W S32 SE1/4 NE1/4.  42.3553 N, 104.6855 W; uncertainty 0.25 mi..  
Cushion plant community on gravelly limestone plain on sumit ridge with scattered Juniperus scopulorum. Phenology: vegetative only. 

Walter Fertig, 15312.  8/5/1994. 		RM 645237	Barcode: RM0307143
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40.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Carbon County: West rim of Shirley Basin: south end of Chalk Mountain, ca 3 mi W of Wyo Hwy 77; ca 10.5 mi N of Shirley Mountains.  Elev. 7960-7980 ft.
T27N R80W S6 NW1/4 of NW1/4; aslo T28N R80W SW1/4 of SW1/4 S31.  42.3402 N, 106.4614 W; uncertainty 0.5 mi..  
East-facing rim of summit in 15-25 foot wide band of white chalky-limestone gravel; cushion plant community of Phlox muscoides, Arenaria hookeri, and Cryptantha caespitosa; vegetative cover ca 10-20%. Phenology: fruiting. 

Walter Fertig, 17572.  6/21/1997. 		RM 682369	Barcode: RM0307234
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41.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Carbon County: North Platte River Valley: northwest shore of Seminoe Reservoir, mouth of small inlet ca 0.8 mi SSE of South Red Hills Campground, ca 1.2 mi E of County Road 351 (Seminoe Road), ca 3 mi SSE of Seminoe Dam.  Elev. 6400 ft.
T25N R84W S21 NW1/4 of SE1/4.  42.1234 N, 106.8897 W; uncertainty 0.25 mi..  
North-facing slopes and summit of siltstone-sandy limestone ridge just S of inlet.  Community of cushion plants/Elymus spicatus and scattered Chrysothamnus nauseosus on caprock summit and on slopes in openings amid Artemisia nova. Phenology: flowering & fruiting. 

Walter Fertig, 18039.  8/21/1997. 		RM 703993	Barcode: RM0307246
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42.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southeast Plains: ridge ca 0.5 mi S of Horseshoe Creek and 1 mi W of the North Platte River on the east side of Wyo Hwy 319; 5 air mi SE of Glendo; ca 1.5 mi S of Glendo Reservoir.  Elev. 4760 ft.
T29N R68W S35 W1/4 of NW1/4 of NW1/4.  42.4421 N, 104.981 W; uncertainty 0.25 mi..  
Crest of west dipping flat bench of brown sandstone rock and gravel over fine-textured brown sandy-clay; cushion plant community dominated by Parthenium alpinum, Arenaria hookeri, Paronychia sessilfloria, and Artemisia frigida in openings amid Artemisia Phenology: vegetative only. 

Walter Fertig, 18065.  9/11/1997. 		RM 681050	Barcode: RM0307144
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43.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Carbon County: North Platte River Valley: northwest shore of Seminoe Reservoir, mouth of small inlet ca 0.8 mi SSE of South Red Hills Campground, ca 1.2 mi E of County Road 351 (Seminoe Road), ca 3 mi SSE of Seminoe Dam.  Elev. 6400 ft.
T25N R84W S21 NW1/4 of SE1/4.  42.1234 N, 106.8897 W; uncertainty 0.25 mi..  
North-facing slopes and summit of siltstone-sandy limestone ridge just S of inlet; community of cushion plants/Elymus spicatus and scattered Chrysothamnus nauseosus on caprock summit and on slopes in openings amid Artemisia nova. Phenology: vegetative only. 

Walter Fertig, 18039.  8/21/1997. 		RM 681049	Barcode: RM0307145
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44.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Fremont County: 4 air mi NE of Penrose: bluffs overlooking Beaver Creek from the southwest.  Elev. 5600 ft.
T18S R68W S21.  38.4701 N, 105.0048 W; uncertainty 1 mi..  
Flat gravelly benches in pinyon-juniper stand, and shale bluffs. Phenology: flowering & fruiting. 

Barry C. Johnston, 1628.  6/1/1978. 		RM 339949
     with P. Lucas
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45.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Fremont County: 2.5 mi NE of Penrose: Beaver Creek at CO Hwy 115.  Elev. 5600 ft.
Gypsum mesa. Phenology: flowering. 

Frederick J. Hermann, 23600.  6/1/1971. 		USFS 481224
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46.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Fremont County: 3 mi E of Portland.  Elev. 5200 ft.
Open shade. Phenology: flowering. 

Harold D. Harrington, 9856.  5/17/1965. 		RM 755026
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47.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Pueblo County: 3 mi NW of Pueblo.  Elev. 5000 ft.
Shale outcrop. Phenology: flowering & fruiting. 

H. D. Ripley, 8303.  3/23/1947. 		RM 207610
     with Rupert C. Barneby
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48.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Pueblo County: Turkey Creek, 3.5 mi NNE of Swallows.  Elev. 5140 ft.
T19S R67W S36 SE1/4 of SW1/4.  
Phenology: flowering. 

J. Scott Peterson, 83-436.  7/12/1983. 		RM 358493
     with S. Kennedy
_________________________________________________________________________

49.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Fremont County: 1.5 miles east of confluence of Beaver Creek and the Arkansas River, SW of junction of Highways 50 and 120.  Elev. 5200 ft.
T19S R68W S25 SE1/4 of NE1/4.  
Shale with Eriogonum and Juniperus. Phenology: vegetative only. 

J. Scott Peterson, 83-439.  7/13/1983. 		RM 358494
     with S. Kennedy
_________________________________________________________________________

50.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Fremont County: 0.8 mi N of junction of Arkansas River and Cocklebur Creek, near Florence.  Elev. 5200 ft.
T19S R69W S13; E1/4 of NW1/4.  38.398 N, 105.0601 W; uncertainty 1 mi..  
On shale soils of open slopes. Phenology: flowering. 

J. Scott Peterson, 83416.  7/11/1983. 		RM 358495
_________________________________________________________________________

51.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Pueblo County: Ca 1.5 mi E of confluence of Turkey Creek and the Arkansas River.  Elev. 4920 ft.
T20S R66N S20 SE1/4 of NW1/4.  
Shale of Niobrara Formation with Artemisia and Frankenia. Phenology: flowering & fruiting. 

W. Baker, 83-126.  //1983. 		RM 358519
     with S. Kennedy
_________________________________________________________________________

52.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Fremont County: 1 mi E of Chandler.  Elev. 5500-5600 ft.
T19S R70W S23.  38.38124 N, 105.18916 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Summit of gypsum hill with Eriogonum lachnogynum. Phenology: flowering. 

William A. Weber, 4680.  5/21/1949. 		RM 215593
_________________________________________________________________________

53.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: E of County Road 407, ca 3 air mi SE of Alcova.  Elev. 5700 ft.
T30N R82W S29 SW1/4.  42.5403 N, 106.6884 W.  
Barren, gravelly, calcareous slope with cushion plants and scattered forbs. Phenology: fruiting. 

Amy J. Roderick, 4505.  6/6/1998. 		RM 957254	Barcode: RM0209489
_________________________________________________________________________

54.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: South-Central Transverse Ranges: along Wyo Hwy 220, NW of Alcova Reservoir, ca 5.5 road mi W of Alcova; ca 26 air mi SW of Casper.  Elev. 6300 ft.
T30N R83W S19.  42.5542 N, 106.8269 W; uncertainty 1 mi..  
Calcareous badlands with scattered calcareous outcrops. Phenology: flowering. 

B. E. Nelson, 11429.  7/7/1984. 		RM 362880	Barcode: RM0307259
     with Robert S. Kirkpatrick
_________________________________________________________________________

55.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 10 air mi NE of Wheatland on county road at Little Cottonwood Draw, E of Missouri Basin Power Station.  Elev. 4750 ft.
T25N R66W S28 NE1/4.  42.1119 N, 104.7806 W; uncertainty 1 mi..  
Frequent in sandy soil on ridge top in rough breaks with Cercocarpus montanus, Haplopappus armerioides, and Musineon. Phenology: flowering. 

B. E. Nelson, 1499.  5/30/1978. 		RM 318000	Barcode: RM0307257
_________________________________________________________________________

56.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 8.5 air mi N of Guernsey, ca 5 air mi N of Hartville on Wyo Hwy 270, at the head of Webb Canyon.  Elev. 5200 ft.
T28N R65W S19 NW1/4.  42.3847 N, 104.7047 W; uncertainty 1 mi..  
Common in gravelly loam on a hilltop in upland grassland with Hymenoxys acaulis, Astragalus spatulatus, and Senecio canus, and in a roadcut. Phenology: flowering & fruiting. 

B. E. Nelson, 1519.  5/31/1978. 		RM 317999	Barcode: RM0307256
_________________________________________________________________________

57.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: Wind River Basin: ca 0.5 mi SE of Alcova Dam on the North Platte River; ca 30 air mi SW of Casper.  Elev. 5500 ft.
T30N R82W S30.  42.5397 N, 106.7086 W; uncertainty 1 mi..  
Sandy-gypsum ridge. Phenology: flowering. 

B. E. Nelson, 9362.  6/16/1983. 		RM 598314	Barcode: RM0307266
_________________________________________________________________________

58.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: Wyo Hwy 220: ca 6 air mi west of Alcova.  Elev. 6300 ft.
T30N R83W S19.  42.5542 N, 106.8269 W; uncertainty 1 mi..  
Limestone or gypseous outcrop and loose slopes. Phenology: fruiting. 

Ronald L. Hartman, 12543.  5/10/1981. 		RM 387537	Barcode: RM0307255
     with Gael Fonken
_________________________________________________________________________

59.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: : 4 road mi W of Alcova.  Elev. 6000 ft.
T30N R83W S20.  42.5542 N, 106.8072 W; uncertainty 1 mi..  
Red beds. 

Ronald L. Hartman, 15718.  6/24/1983. 		RM 
_________________________________________________________________________

60.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: : 2 road mi W of Alcova.  Elev. 5800 ft.
T30N R83W S15.  42.5686 N, 106.7678 W; uncertainty 1 mi..  
Red beds. 

Ronald L. Hartman, 15719.  6/24/1983. 		RM 
_________________________________________________________________________

61.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: at the Oregon Trail Historical Site on the Emigrant Trail, across the North Platte River from Guernsey.  Elev. 4320-4400 ft.
T26N R66W S2.  42.2558 N, 104.7428 W.  
Rough breaks with scattered juniper and ponderosa pine and interspersed sandy areas. Phenology: flowering. 

B. E. Nelson, 24860.  5/19/1993. 		RM 598327	Barcode: RM0307236
_________________________________________________________________________

62.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: ridge between Wyo Hwy 270 and upper Page Flat Draw, ca 8.3 air mi S of Manville; ca 10.7 air mi SW of Lusk.  Elev. 5700-6020 ft.
T31N R65W S13.  42.6586 N, 104.6097 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Cracks in limestone pavement on ridge top and adjacent stony slopes. Phenology: flowering. 

B. E. Nelson, 25259.  5/26/1993. 		RM 598315	Barcode: RM0307237
_________________________________________________________________________

63.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Goshen County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: Wildcat Hills: between the heads of Willow and Muskrat creeks, ca 43 air mi NNW of Torrington.  Elev. 5680-5860 ft.
T30N R65W S12.  42.59 N, 104.6065 W; NAD 83, uncertainty 0.5 mi., Nat. Geog. TOPO!.  
Stony limestone slopes with scattered ponderosa pine. Phenology: flowering. 

B. E. Nelson, 25314.  5/26/1993. 		RM 598326	Barcode: RM0307131
_________________________________________________________________________

64.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: at the head of Webb Canyon on Wyo Hwy 270, ca 4.5 air mi N of Hartville; ca 8.5 air mi N of Guernsey.  Elev. 5200-5460 ft.
T28N R65W S19.  42.3847 N, 104.7047 W.  
Slopes below limestone cliffs. Phenology: flowering. 

B. E. Nelson, 25356.  5/27/1993. 		RM 598325	Barcode: RM0307130
_________________________________________________________________________

65.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: between Rocky Pass and Long Canyon, ca 1.3 air mi NW of Hartville; ca 4.7 air mi N of Guernsey.  Elev. 4780-4960 ft.
T27N R66W S2.  42.3428 N, 104.7436 W; uncertainty 1 mi..  
Flat area with extensive limestone pavement above canyons dominated by juniper and mountain mahogany. Phenology: flowering. 

B. E. Nelson, 25398.  5/27/1993. 		RM 598324	Barcode: RM0307235
_________________________________________________________________________

66.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: ca 0.3 mi E of Broom Creek on Patten Creek or County Road 208, ca 13.5 air mi ESE of Glendo; ca 12.8 air mi N of Guernsey.  Elev. 4960-5060 ft.
T29N R66W S27 SW1/4.  42.4569 N, 104.7803 W; uncertainty 1 mi..  
Open stony limestone slopes with scattered ponderosa pine. Phenology: vegetative only. 

B. E. Nelson, 27438.  7/26/1993. 		RM 598323	Barcode: RM0307129
_________________________________________________________________________

67.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Marble or County Road 167 ca 1 air mi E of the Marble Quarry N of Marble Quarry Creek, ca 13 air mi W of Wheatland.  Elev. 4960-5040 ft.
T24N R70W S2 NE1/4.  42.0839 N, 105.2057 W.  
Sagebrush-grassland slopes and benches with fine gravelly soils and cobblestones. Phenology: vegetative only. 

B. E. Nelson, 30521.  5/19/1994. 		RM 704439	Barcode: RM0307238
_________________________________________________________________________

68.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: along Diamond or County Road 104 ca 0.5 air mi E of Richeau Creek, ca 8.3 air mi W of Chugwater; ca 20 air mi S of Wheatland.  Elev. 5640-5750 ft.
T21N R68W S26 NE1/4.  41.7613 N, 104.9733 W; uncertainty 0.5 mi..  
Cobblestone slopes with grasslands in shallow swales and draws. Phenology: fruiting. 

B. E. Nelson, 30940.  5/26/1994. 		RM 704438	Barcode: RM0307239
_________________________________________________________________________

69.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Niobrara County: Southern Powder River Basin/Southeastern Plains: Hartville Uplift: along a triburtary of Silver Springs Creek on Silver Springs or County Road 54, ca 8.5 air mi SSW of Lusk.  Elev. 5340-5500 ft.
T31N R64W S22 NE1/4.  42.6506 N, 104.5218 W; NAD 83, uncertainty 700 ft., Nat. Geog. TOPO!.  
Fine grained black stone hill. Phenology: vegetative only. 

B. E. Nelson, 32714.  7/11/1994. 		RM 704437	Barcode: RM0307240
_________________________________________________________________________

70.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Goshen County: 3 mi WNW of Ft. Laramie.  Elev. 4300 ft.
T26N R64W S17 SW1/4.  42.2267 N, 104.5688 W; uncertainty 0.5 mi..  
Limey-sandstone ledges with Phlox hoodii. Phenology: flowering. 

Robert D. Dorn, 5860.  5/10/1995. 		RM 600620
_________________________________________________________________________

71.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 15 mi SW of Wheatland.  Elev. 5400 ft.
T23N R70W S36 NE1/4.  41.9226 N, 105.1864 W.  
Rocky ridge with Astragalus spatulatus and Hymenoxys. Phenology: flowering. 

Robert D. Dorn, 5878.  5/21/1995. 		RM 600621
_________________________________________________________________________

72.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi N of Wheatland.  Elev. 4600 ft.
T26N R67W S31 South1/2 of SW1/4.  42.1837 N, 104.9408 W.  
Cobbley ridge with Arenaria hookeri and Cryptantha cana. 

Robert D. Dorn, 7902.  5/11/1999. 		RM 
_________________________________________________________________________

73.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi N of Wheatland.  Elev. 4600 ft.
T25N R67W S6 NE1/4 of NW1/4.  42.1693 N, 104.9408 W.  
Cobbley ridge with Astragalus sericoleucus and A. gilviflorus. 

Robert D. Dorn, 7903.  5/11/1999. 		RM 
_________________________________________________________________________

74.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi NNE of Wheatland.  Elev. 4700 ft.
T25N R67W S7 NE1/4 of NE1/4.  42.155 N, 104.9408 W.  
Cobbley ridge with Astragalus sericoleucus and Cryptantha cana. 

Robert D. Dorn, 7904.  5/11/1999. 		RM 
_________________________________________________________________________

75.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi NNE of Wheatland.  Elev. 4700 ft.
T25N R67W S8 NE1/4 of SW1/4.  42.155 N, 104.9213 W.  
Cobbley ridge with Astragalus sericoleucus and Cryptantha cana. 

Robert D. Dorn, 7905.  5/11/1999. 		RM 
_________________________________________________________________________

76.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 5 mi NE of Wheatland.  Elev. 4500 ft.
T25N R67W S28 NE1/4 of NE1/4.  42.112 N, 104.9017 W.  
Cobbley knob with Paronychia and Arenaria hookeri. 

Robert D. Dorn, 7907.  5/11/1999. 		RM 
_________________________________________________________________________

77.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 5 mi SW of Glendo.  Elev. 4900 ft.
T29N R69W S35 NE1/4 of SE1/4.  42.4426 N, 105.0982 W.  
Chalky outcrop with Astragalus spatulatus and Senecio canus. 

Robert D. Dorn, 7908.  5/12/1999. 		RM 
_________________________________________________________________________

78.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 15 mi NNW of Wheatland.  Elev. 4900 ft.
T27N R68W S31 SW1/4 of NE1/4.  42.2697 N, 105.0583 W.  
Rocky slope with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7910.  5/12/1999. 		RM 
_________________________________________________________________________

79.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 13 mi NNW of Whealtand.  Elev. 5000 ft.
T26N R68W S5 NE1/4 of SE1/4.  42.2554 N, 105.0387 W.  
Rocky slope with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7911.  5/12/1999. 		RM 
_________________________________________________________________________

80.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 4 mi SE of Wheatland.  Elev. 4800 ft.
T24N R67W S27 SE1/4 of NW1/4.  42.0252 N, 104.8764 W.  
Gravelly slope with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7912.  5/12/1999. 		RM 
_________________________________________________________________________

81.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 4.5 mi SE of Wheatland.  Elev. 4800 ft.
T42N R67W S34 SE1/4 of NW1/4.  43.5716 N, 104.8916 W.  
Limestone outcrop with Cryptantha cana and Arenaria hookeri. 

Robert D. Dorn, 7913.  5/12/1999. 		RM 
_________________________________________________________________________

82.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 5 mi SE of Wheatland.  Elev. 4900 ft.
T23N R67W S3 NE1/4 of NW1/4.  41.9959 N, 104.8764 W.  
Sandstone-limestone outcrop with Arenaria hookeri and Eriogonum. 

Robert D. Dorn, 7914.  5/12/1999. 		RM 
_________________________________________________________________________

83.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 6 mi SE of Wheatland.  Elev. 4800 ft.
T23N R67W S10 NE1/4 of NW1/4.  41.9812 N, 104.8764 W.  
Gravelly ridge with Haplopappus nuttalii and Arenaria hookeri. 

Robert D. Dorn, 7915.  5/12/1999. 		RM 
_________________________________________________________________________

84.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi SE of Wheatland.  Elev. 4900 ft.
T23N R67W S22 SW1/4 of NE1/4.  41.9519 N, 104.8764 W.  
Gravelly slope with Paryonychia and Arenaria hookeri. 

Robert D. Dorn, 7916.  5/12/1999. 		RM 
_________________________________________________________________________

85.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi NW of Chugwater.  Elev. 5400 ft.
T21N R68W S12 SW1/4 of NW1/4.  41.8053 N, 104.9539 W.  
Rocky ridge with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7918.  5/13/1999. 		RM 
_________________________________________________________________________

86.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8 mi NW of Chugwater.  Elev. 5500 ft.
T21N R68W S2 NE1/4 of SE1/4.  41.82 N, 104.9733 W.  
Rocky ridge with Haplopappus nuttalli and Arenaria hookeri. 

Robert D. Dorn, 7920.  5/13/1999. 		RM 
_________________________________________________________________________

87.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 8.5 mi NW of Chugwater.  Elev. 5600 ft.
T22N R68W S35 W1/2 of SE1/4 of SE1/4.  41.8346 N, 104.9733 W.  
Mountain mahogany with Viola nuttallii and Arenaria hookeri. 

Robert D. Dorn, 7921.  5/13/1999. 		RM 
_________________________________________________________________________

88.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 9 mi NW of Chugwater.  Elev. 5500 ft.
T22N R68W S26 N1/2 of SE1/4.  41.8493 N, 104.9733 W.  
Rocky slope with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7923.  5/13/1999. 		RM 
_________________________________________________________________________

89.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 10 mi NW of Chugwater.  Elev. 5400 ft.
T22N R68W S24 SW1/4 of NE1/4 of S1/4.  41.864 N, 104.9539 W.  
Gravelly grassland with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7924.  5/13/1999. 		RM 
_________________________________________________________________________

90.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7.5 mi WNW of Chugwater.  Elev. 5600 ft.
T21N R68W S14 NE1/4 of NE1/4.  41.7907 N, 104.9733 W.  
Rocky ridge with Artemisia frigida and Arenaria hookeri. 

Robert D. Dorn, 7926.  5/13/1999. 		RM 
_________________________________________________________________________

91.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi W of Chugwater.  Elev. 5700 ft.
T21N R68W S23 E1/2 of NE1/4.  41.776 N, 104.9733 W.  
Rocky ridge with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7927.  5/13/1999. 		RM 
_________________________________________________________________________

92.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 7 mi W of Chugwater.  Elev. 5700 ft.
T21N R68W S26 NE1/4 of NE1/4.  41.7613 N, 104.9733 W.  
Rocky ridge with Astragalus spatulatus and Arenaria hookeri. 

Robert D. Dorn, 7928.  5/13/1999. 		RM 
_________________________________________________________________________

93.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 15 mi NE of Wheatland.  Elev. 4800 ft.
T25N R65W S16 SW1/4.  42.1407 N, 104.6667 W.  
Rocky limestone ridge with Cercocarpus and Arenaria hookeri. 

Robert D. Dorn, 7929.  5/18/1999. 		RM 
_________________________________________________________________________

94.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 5 air mi NNW of Glendo.  Elev. 4900-5000 ft.
T30N R68W S19 N1/2.  42.5567 N, 105.0564 W.  
Limestone outcrops and calcareous grasslands with juniper. Phenology: vegetative only. 

Ronald L. Hartman, 39471.  7/1/1993. 		RM 598322	Barcode: RM0307133
_________________________________________________________________________

95.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34, ca 4 air mi E of Albany County.  Elev. 5260 ft.
T22N R70W S11 E1/2.  41.895 N, 105.2133 W; uncertainty 1 mi..  
Sandy plains with short-grass prairie. Phenology: vegetative only. 

Ronald L. Hartman, 39801.  7/4/1993. 		RM 598321	Barcode: RM0307250
_________________________________________________________________________

96.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 7 air mi E of Albany County.  Elev. 5250 ft.
T22N R69W S4 NW1/4; and also NE1/4 S5.  41.9094 N, 105.1361 W.  
Sandy slopes. Phenology: vegetative only. 

Ronald L. Hartman, 39843.  7/4/1993. 		RM 598320	Barcode: RM0307249
_________________________________________________________________________

97.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Wheatland Reservoir 1, 6 air mi SW of Wheatland.  Elev. 4900 ft.
T23N R68W S6 SE1/4.  41.9364 N, 105.0489 W; uncertainty 1 mi..  
Calcareous slopes and sandy flats. Phenology: vegetative only. 

Ronald L. Hartman, 39931.  7/4/1993. 		RM 598319	Barcode: RM0307248
_________________________________________________________________________

98.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Johnson Reservoir 3, ca 6 air mi NNW of Wheatland.  Elev. 4500 ft.
T25N R68W S22 N1/2.  42.1256 N, 104.995 W.  
Sandy slopes and lake margin. Phenology: vegetative only. 

Ronald L. Hartman, 40023.  7/4/1993. 		RM 598318	Barcode: RM0307132
_________________________________________________________________________

99.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: I-25 and U.S. Hwy 26 interchange, ca 4 air mi NNW of Wheatland.  Elev. 4700 ft.
T26N R68W S15 NW1/4.  42.2267 N, 104.9961 W.  
Sandy slopes. Phenology: vegetative only. 

Ronald L. Hartman, 40041.  7/4/1993. 		RM 598317	Barcode: RM0307251
_________________________________________________________________________

100.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34 and I-25 interchange, ca 7 mi S of Wheatland.  Elev. 4900 ft.
T23N R68W S13 E1/2.  41.9675 N, 104.9517 W.  
Sandy slopes and stream bottom. Phenology: vegetative only. 

Ronald L. Hartman, 40848.  7/11/1993. 		RM 598316	Barcode: RM0307247
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101.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Hartville Uplift: ca 7 air mi NNE of Hartville and Sunrise; ca 11.5 air mi NNE of Guernsey, West Hill.  Elev. 5300 ft.
T28N R65W S4.  
Phenology: flowering. 

Robert E. Pfadt, s.n..  5/14/1984. 		RM 364810	Barcode: RM0307141
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102.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Limestone Mountain.  Elev. 4800 ft.
T27N R65W S17 NW1/4.  
Common on limestone soils; with Carex, Cercocarpus. Phenology: flowering & fruiting. 

Robert W. Lichvar, 2575.  5/2/1980. 		RM 329192	Barcode: RM0307142
_________________________________________________________________________

103.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: North Platte River Basin: rim of Benton Basin, 0.5-1 air mi S of Wyo Hwy 220, ca 2 air mi W of Alcova Reservoir.  Elev. 6380 ft.
T30N R83W S30 E1/2; also NW1/4 of NW1/4 S32.  
Cushion plant community on siltstone and fragmented limestone gravel deposits on windy rim above gypsum deposits. Phenology: flowering. 

Walter Fertig, 13806.  6/5/1993. 		RM 601811	Barcode: RM0307229
_________________________________________________________________________

104.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: North Platte River Valley: northwest rim of Benton Basin, ca 1/4 mi N of Wyo Hwy 220; ca 5.5 air mi W of Alcova.  Elev. 6340 ft.
T30N R83W S19 NW1/4.  42.55417 N, 106.82694 W; uncertainty 0.5 mi..  
Bluffs of pale sandy soil along dirt road; cushion plant community with Phlox muscoides, Artemisia nova, and Parthenium. Phenology: flowering. 

Walter Fertig, 13532.  5/21/1993. 		RM 601882	Barcode: RM0307228
_________________________________________________________________________

105.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: North Platte River Basin: slopes on north side of [North] Platte River, 0.5 mi S of Wyo Hwy 220, ca 1 1/4 air mi NE of Gray Reef Dam.  Elev. 5500 ft.
T30N R82W S8 NE1/4 SW1/4 & SE1/4 NW1/4.  42.584 N, 106.6884 W; uncertainty 0.5 mi..  
Cushion plant community on gravelly wind-swept ridge top. Local on ridgetop. Phenology: fruiting. 

Walter Fertig, 13797.  6/5/1993. 		RM 601812
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106.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: Northern Platte River Valley: slopes on southwest side of Alcova Reservoir and W of Fremont Canyon, ca 33 air mi SW of Casper.  Elev. 5600-5900 ft.
T29N R83W S4 NE1/4; also NE1/4 of SW1/4 S4.  
Sandy soil pockets and gravelly limestone-sandstone outcrops on northeast-facing slopes in open ponderosa pine/Utah juniper woodland. Phenology: flowering. 

Walter Fertig, 13556.  5/22/1993. 		RM 601883	Barcode: RM0307230
_________________________________________________________________________

107.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Southeast Plains: Hartville Uplift; ridge S of Good Fortune Mine, ca 3/4 air mi SE of Sunrise Mine.  Elev. 5060 ft.
T27N R65W S7; also NE4 SE4 SE4.  
Reddisf-grey sandstone-limestone outcrops on N-facing upper slope and summit in cushion plant community surrounded by ponderosa pine-juniper savanna. Also on adjacent roadcuts. Phenology: vegetative only. 

Walter Fertig, 15303.  8/4/1994. 		RM 602522	Barcode: RM0307231
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108.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: North Platte River Basin: east-west trending ridge on north side of Eagle Creek, ca 1 mi N of Alcova Dam.  Elev. 5500-5700 ft.
T30N R83W S13 N1/2 of SW1/4; also SE1/4 of NE1/4 S14.  
Utah juniper-Wyoming big sagebrush-threadleaf sedge grassland on north-facing slope of Alcova limestone and redbeds. Phenology: flowering & fruiting. 

Walter Fertig, 15617.  5/2/1995. 		RM 602611	Barcode: RM0307232
_________________________________________________________________________

109.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Hartville Uplift: ca 0.5 mi W of Graves Ranch site; ca 1 mi S of Sunrise.  Elev. 4800 ft.
T27N R65W S18 NE1/4 of SW1/4 of NW1/4.  42.3127 N, 104.7059 W; uncertainty 0.25 mi..  
South facing gravelly sandstone-limestone slope in Cercocarpus montanus-Bouteloua curtipendula community; locally common in openings among shrubs. Locally common. Phenology: vegetative only. 

Walter Fertig, 15289.  8/3/1994. 		RM 602336	Barcode: RM0307233
_________________________________________________________________________

110.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Albany County: Shirley Basin: above Cameron Creek, ca 9 air mi SW of Shirley Basin (town site), ca 2.3 mi S of Wyo Hwy 77.  Elev. 7100 ft.
T26N R79W S31 NW1/4 NE1/4.  
On low line jutting limestone outcrops, south aspect, shallow silt loam, with Cercocarpus montanus, Elymus spicatus, Phlox muscoides, Paronychia depressa. Occasional. Phenology: flowering. 

Bonnie Heidel, 3304.  6/15/2009. 		RM 841651	Barcode: RM0047692
_________________________________________________________________________

111.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Carbon County: Shirley Mountains: ridge W of Cave Creek, ca 24 mi S of Alcova.  Elev. 8000 ft.
T26N R82W S10 SE1/4.  
On extensive limestone outcrop with bedding planes at different angles and aspects, with Elymus spicatus, Cymopterus longipes, Stenotus acaulis, scattered Pinus flexilis. Uncommon. Phenology: flowering. 

Bonnie Heidel, 3316.  6/22/2009. 		RM 841666	Barcode: RM0047693
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112.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Carbon County: Shirley Basin: north side of Canyon Creek, both east and west sides of Kortes Road, ca 11 air mi NE of Leo.  Elev. 6600-6660 ft.
T28N R83W S16 SE1/4 NW1/4.  
Upper slopes and ridgetop of limestone outcrops, 0-10% slope, with Elymus spicatus, Sphaeromeria capitata, Paronychia depressa, Stenotus acaulis. 4 SE1/4; NW1/4 Phenology: flowering. 

Bonnie Heidel, 3307.  6/15/2009. 		RM 841670	Barcode: RM0047691
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113.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Moffat County: Across Bull Canyon from the southeast end of Cold Spring Mountain; County Road 10, 2.2 road mi NE of Colo Hwy 318, then 0.8 road mi NW on dirt road.  Elev. 6100 ft.
T9N R101W S5.  40.7695 N, 108.7717 W; NAD 83, uncertainty 0.25 mi., Nat. Geog. TOPO!.  
Calcareous rim. Phenology: flowering. 

Ronald L. Hartman, 8847.  6/4/1979. 		RM 1009499	Barcode: RM0286090
     with B. E. Nelson
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114.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: Alcova, ca 1.2 mi W on Wyo Hwy 220 on north side of highway.
T30N R83W S14 SW1/4 of SW1/4.  42.5683 N, 106.7481 W.  
Badlands. No elevation given. Phenology: vegetative only. 

C. H. Refsdal, 89.  6/22/1993. 		RM 
_________________________________________________________________________

115.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Camp Guernsey: ca 1.9 km WSW of Register Cliff Historical Monument, ca 1.6 km S of North Platte River.  Elev. 1372 m.
521450E, 4676500N.  
Cliffs and ravines; grassland to intermittent stream: limestone cap and loam; growing on north-facing hillside; with Juniperus scopulorum, Oenothera albicaulis, Koeleria macrantha, Penstemon erianthus var. erianthus, Bromus, Poa spp. Scattered; prostrate, perennial herb from woody caudex; 2-4 cm tall. Phenology: vegetative only. 

Patricia P. Douglas, 261.  6/15/1995. 		RM 957850	Barcode: RM0214060
     with Carlos A. Popolizio, Rosalie M. Smith
_________________________________________________________________________

116.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: Camp Guernsey: Walsh Ranch parcel; west end of transect ca 5.9 km NE of Guernsey Reservoir, ca 3.2 km SW of Range Guard 4.  Elev. 1506 m.
520575E, 4690521N to 520740E, 4690486N; unknown, GPS reading.  
South to north-facing slopes; juniper/mountain mahogany shrubland; silty loam with cobbles; with Hesperostipa comata, Harbouria trachypleura, Aristrida purpurea, Bouteloua gracilis, Cercocarpus montanus, Zigadenus venenosus, Bouteloua curtipendula, Parthenium alpinum.. Local; perennial herb; less than 10 cm tall. Phenology: flowering. 

Nancy E. Hastings, 113.  5/22/2007. 		RM 961488	Barcode: RM0219427
     with P. Block
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117.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Natrona County: Upper North Platte and Laramie River Drainages: Pathfinder Reservoir and Mountain: Bishop Point Recreation Area, ca 3.4 air mi W of County Road 409; ca 10.5 air mi SW of Alcova townsite.  Elev. 5980 ft.
T29N R84W S15.  42.482 N, 106.885 W.  
Barren gravelly knoll. Phenology: fruiting. 

Amy J. Roderick, 7968.  8/8/1998. 		RM 957255	Barcode: RM0209490
_________________________________________________________________________

118.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Wyoming, Platte County: 15 mi SW of Wheatland.  Elev. 5400 ft.
T23N R70W S36 NE1/4.  41.9226 N, 105.1864 W.  
Rocky ridge with Astragalus spatulatus and Hymenoxys. Flowers white. Phenology: flowering. 

Robert D. Dorn, 5878.  5/21/1995. 		RM 600393	Barcode: RM0307128
_________________________________________________________________________

119.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Pueblo County: East-central Colorado: Mosquito Range to Plains: ca 12 air mi NW of center of Pueblo at Turkey Creek on U.S. Hwy 50.  Elev. 5200 ft.
T19S R66W S31; also T19S R67W SE1/4 S25; also NE1/4 S36.  38.3543 N, 104.9298 W; uncertainty 1 mi..  
Shale rimrock with pinyon-juniper, stream bottom, and grasslands. Phenology: fruiting. 

Ronald L. Hartman, 50315.  5/21/1995. 		 
     with Timothy W. Chumley
_________________________________________________________________________

120.  Parthenium alpinum (Nutt.) Torr. & A. Gray 				Asteraceae

U.S.A., Colorado, Pueblo County: East-central Colorado: Mosquito Range to Plains: ca 14 air mi SE of center of Canon City along Colo Hwy 120.  Elev. 5200 ft.
T19S R68W S15 South1/4; also N1/4 S22.  38.3976 N, 104.9851 W; uncertainty 1 mi..  
Limy area with caprock; pinyon-juniper. Phenology: fruiting. 

Ronald L. Hartman, 50335.  5/21/1995. 		 
     with Timothy W. Chumley
_________________________________________________________________________