: 1.21 $2024-03-28T17:19:55-7:003.237.65.102searchRMRM791889 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Grays.n.Panayoti Kelaidis Gwen Kelaidis, Dean and Patty Swift, Josef Halda, Kurt Bluemel1990610161U.S.A.ColoradoCostillaBetween Jaroso and Antonito.On rocky knoll with Astragalus aretioides and Eriogonum sp. Phenology: vegetative only.RMRM211223 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray4425C. L. Porter194859130U.S.A.WyomingNatronaSatanka Formation: 4 mi W of Alcova on Wyo Hwy 220.-106.787842.55681646On reddish clayey soil of the Satanka formation, on the steep grade. Seeds collected 30 May 1949 Phenology: flowering & fruiting.RMRM215135 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray4855C. L. Porter1949423113U.S.A.WyomingNiobrara5 mi W of Lusk on U.S. Hwy 20.-104.544542.74771554Common, dry marly knolls and ridges, volcanic ash deposits of Miocene age. Phenology: flowering.RMRM247834 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray6653C. L. Porter1955527147U.S.A.WyomingNatrona3 mi W of Alcova.-106.785942.55761951Red sandy-clay soil, Satanka formation. Phenology: flowering & fruiting.RMRM253840 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7248C. L. Porter1957512132U.S.A.WyomingPlatteGuernsey Lake Reservoir on the North Platte River, east side.-104.775642.31911341Locally abundant on limestone and shale of the Guernsey formation. Phenology: flowering & fruiting.RMRM618432 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Grays.n.Robert C. Sivinski1997611162U.S.A.New MexicoMcKinleyCa 5 mi NE of Thoreau on Hwy 57: on remnant natural edges on S-side of Large quarry in Todilto Limestone.-108.1307935.440892225Flat 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.RMRM260137 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7990C. L. Porter Marjorie W. Porter195984216U.S.A.WyomingPlatte20 mi E of Wheatland.-104.675642.15131524Locally abundant, dry, sandy, limestone outcrops. Phenology: vegetative only.RMRM745682 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray2164Bonnie Heidel200254124U.S.A.WyomingPlatteEastern Foothills of the Laramie Range: N of Wyo Hwy 34, ca 19 mi SW of Wheatland.-10509441543515911655Gravelly 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.RMRM710114 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray11329Hollis Marriott1991527147U.S.A.WyomingGoshenSouthern 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.-104.604342.58541829Grasslands with some bare ground, rocky, limestone soil on ridgecrest. Phenology: flowering & fruiting.RMRM710114 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray11329Hollis Marriott1991527147U.S.A.WyomingGoshenSouthern 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.-104.604342.58541829Grasslands with some bare ground, rocky, limestone soil on ridgecrest. Phenology: flowering & fruiting.RMRM301523 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray2863Robert D. Dorn1977428118U.S.A.WyomingNatrona2 mi W of Alcova.-106.795342.53451737Gravelly slope with Phlox, Astragalus. Phenology: flowering.RMRM301518 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray2875Robert D. Dorn1977514134U.S.A.WyomingCarbonCa 2 mi S of Seminoe Dam.-106.920342.13061920Rocky calcareous ridge with Phlox, Astragalus. Phenology: flowering.RMRM329501 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray3417Robert D. Dorn198052123U.S.A.WyomingGoshenRound Top ca 12 mi NE of Guernsey.-104.565642.38321463Rocky calcareous slope with Erigeron ochroleucus and Phlox alyssifolia. Plants matted; corolla white. Phenology: flowering.RMRM600392 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray5860Robert D. Dorn1995510130U.S.A.WyomingGoshen3 mi WNW of Ft. Laramie.-104.572642.22261310Limey-sandstone ledges with Phlox hoodii. Phenology: flowering.RMRM600621 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray5878Robert D. Dorn1995521141U.S.A.WyomingPlatte15 mi SW of Wheatland.-105.186441.92261646Rocky ridge with Astragalus spatulatus and Hymenoxys. Phenology: flowering.RMRM642846 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7902Robert D. Dorn1999511131U.S.A.WyomingPlatte8 mi N of Wheatland.-104.9442.18321402Cobbley ridge with Arenaria hookeri and Cryptantha cana. Phenology: flowering.RMRM642849 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7903Robert D. Dorn1999511131U.S.A.WyomingPlatte8 mi N of Wheatland.-104.9442.16891402Cobbley ridge with Astragalus sericoleucus and A. gilviflorus. Phenology: flowering.RMRM642850 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7904Robert D. Dorn1999511131U.S.A.WyomingPlatte7 mi NNE of Wheatland.-104.9442.15461432Cobbley ridge with Astragalus sericoleucus and Cryptantha cana. Phenology: flowering.RMRM642851 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7905Robert D. Dorn1999511131U.S.A.WyomingPlatte7 mi NNE of Wheatland.-104.920542.15461432Cobbley ridge with Astragalus sericoleucus and Cryptantha cana. Phenology: flowering.RMRM642848 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7907Robert D. Dorn1999511131U.S.A.WyomingPlatte5 mi NE of Wheatland.-104.900942.11151371Cobbley knob with Paronychia and Arenaria hookeri. Phenology: flowering.RMRM642847 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7908Robert D. Dorn1999512132U.S.A.WyomingPlatte5 mi SW of Glendo.-105.09942.44211493Chalky outcrop with Astragalus spatulatus and Senecio canus. Phenology: flowering.RMRM642842 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7910Robert D. Dorn1999512132U.S.A.WyomingPlatte15 mi NNW of Wheatland.-105.057542.26931493Rocky slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM642841 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7911Robert D. Dorn1999512132U.S.A.WyomingPlatte13 mi NNW of Whealtand.-105.037942.25491524Rocky slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM642840 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7912Robert D. Dorn1999512132U.S.A.WyomingPlatte4 mi SE of Wheatland.-104.875642.02511463Gravelly slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM642839 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7913Robert D. Dorn1999512132U.S.A.WyomingPlatte4.5 mi SE of Wheatland.-104.876942.00951463Limestone outcrop with Cryptantha cana and Arenaria hookeri. Phenology: flowering.RMRM642838 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7914Robert D. Dorn1999512132U.S.A.WyomingPlatte5 mi SE of Wheatland.-104.875641.99581493Sandstone-limestone outcrop with Arenaria hookeri and Eriogonum. Phenology: flowering.RMRM642837 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7915Robert D. Dorn1999512132U.S.A.WyomingPlatte6 mi SE of Wheatland.-104.875641.98111463Gravelly ridge with Haplopappus nuttallii and Arenaria hookeri. Phenology: flowering.RMRM642836 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7916Robert D. Dorn1999512132U.S.A.WyomingPlatte7 mi SE of Wheatland.-104.875641.95181493Gravelly slope with Paronychia and Arenaria hookeri. Phenology: flowering.RMRM642834 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7918Robert D. Dorn1999513133U.S.A.WyomingPlatte8 mi NW of Chugwater.-104.953141.80521646Rocky ridge with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM642832 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7920Robert D. Dorn1999513133U.S.A.WyomingPlatte8 mi NW of Chugwater.-104.972541.81991676Rocky ridge with Haplopappus nuttallii and Arenaria hookeri. Phenology: flowering.RMRM642831 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7921Robert D. Dorn1999513133U.S.A.WyomingPlatte8.5 mi NW of Chugwater.-104.972541.83451707Mountain mahogany with Viola nuttallii and Arenaria hookeri. Phenology: flowering.RMRM642829 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7923Robert D. Dorn1999513133U.S.A.WyomingPlatte9 mi NW of Chugwater.-104.972541.84921676Rocky slope with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM642843 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7924Robert D. Dorn1999513133U.S.A.WyomingPlatte10 mi NW of Chugwater.-104.953141.86381646Gravelly grassland with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM642865 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7926Robert D. Dorn1999513133U.S.A.WyomingPlatte7.5 mi WNW of Chugwater.-104.972541.79051707Rocky ridge with Artemisia frigida and Arenaria hookeri. Phenology: flowering.RMRM642866 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7927Robert D. Dorn1999513133U.S.A.WyomingPlatte7 mi W of Chugwater.-104.972541.77591737Rocky ridge with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM642867 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7928Robert D. Dorn1999513133U.S.A.WyomingPlatte7 mi W of Chugwater.-104.972541.76121737Rocky ridge with Astragalus spatulatus and Arenaria hookeri. Phenology: flowering.RMRM624868 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7929Robert D. Dorn1999518138U.S.A.WyomingPlatte15 mi NE of Wheatland.-104.66642.14021463Rocky limestone ridge with Cercocarpus and Arenaria hookeri. Phenology: flowering.RMRM741272 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray9701Robert D. Dorn200365156U.S.A.WyomingGoshenFort Laramie National Historic Site.-104.51666742.2183331341Rocky ridge with Paronychia and Cryptantha cana. Uncommon somewhat mat forming. Phenology: vegetative only.RMRM645237 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray15312Walter Fertig199485217U.S.A.WyomingPlatteSoutheast Plains: Hartville Uplift: summit of uplift ca 3/4 air mi N of Chicago Mine.-104.685542.35531615Cushion plant community on gravelly limestone plain on sumit ridge with scattered Juniperus scopulorum. Phenology: vegetative only.RMRM682369 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray17572Walter Fertig1997621172U.S.A.WyomingCarbonWest 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.-106.461442.340224262432East-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.RMRM703993 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray18039Walter Fertig1997821233U.S.A.WyomingCarbonNorth 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.-106.889742.12341951North-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.RMRM681050 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray18065Walter Fertig1997911254U.S.A.WyomingPlatteSoutheast 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.-104.98142.44211451Crest 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.RMRM681049 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray18039Walter Fertig1997821233U.S.A.WyomingCarbonNorth 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.-106.889742.12341951North-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.RMRM339949 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray1628Barry C. Johnston P. Lucas197861152U.S.A.ColoradoFremont4 air mi NE of Penrose: bluffs overlooking Beaver Creek from the southwest.-105.004838.47011707Flat gravelly benches in pinyon-juniper stand, and shale bluffs. Phenology: flowering & fruiting.RMUSFS481224 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray23600Frederick J. Hermann197161152U.S.A.ColoradoFremont2.5 mi NE of Penrose: Beaver Creek at CO Hwy 115.1707Gypsum mesa. Phenology: flowering.RMRM755026 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray9856Harold D. Harrington1965517137U.S.A.ColoradoFremont3 mi E of Portland.1585Open shade. Phenology: flowering.RMRM207610 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray8303H. D. Ripley Rupert C. Barneby194732382U.S.A.ColoradoPueblo3 mi NW of Pueblo.1524Shale outcrop. Phenology: flowering & fruiting.RMRM358493 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray83-436J. Scott Peterson S. Kennedy1983712193U.S.A.ColoradoPuebloTurkey Creek, 3.5 mi NNE of Swallows.1567Phenology: flowering.RMRM358494 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray83-439J. Scott Peterson S. Kennedy1983713194U.S.A.ColoradoFremont1.5 miles east of confluence of Beaver Creek and the Arkansas River, SW of junction of Highways 50 and 120.1585Shale with Eriogonum and Juniperus. Phenology: vegetative only.RMRM358495 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray83416J. Scott Peterson1983711192U.S.A.ColoradoFremont0.8 mi N of junction of Arkansas River and Cocklebur Creek, near Florence.-105.060138.3981585On shale soils of open slopes. Phenology: flowering.RMRM358519 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray83-126W. Baker S. Kennedy1983U.S.A.ColoradoPuebloCa 1.5 mi E of confluence of Turkey Creek and the Arkansas River.1500Shale of Niobrara Formation with Artemisia and Frankenia. Phenology: flowering & fruiting.RMRM215593 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray4680William A. Weber1949521141U.S.A.ColoradoFremont1 mi E of Chandler.-105.1891638.3812416761707Summit of gypsum hill with Eriogonum lachnogynum. Phenology: flowering.RMRM957254 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray4505Amy J. Roderick199866157U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: E of County Road 407, ca 3 air mi SE of Alcova.-106.688442.54031737Barren, gravelly, calcareous slope with cushion plants and scattered forbs. Phenology: fruiting.RMRM362880 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray11429B. E. Nelson Robert S. Kirkpatrick198477189U.S.A.WyomingNatronaSouth-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.-106.826942.55421920Calcareous badlands with scattered calcareous outcrops. Phenology: flowering.RMRM318000 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray1499B. E. Nelson1978530150U.S.A.WyomingPlatteSouthern 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.-104.780642.11191448Frequent in sandy soil on ridge top in rough breaks with Cercocarpus montanus, Haplopappus armerioides, and Musineon. Phenology: flowering.RMRM317999 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray1519B. E. Nelson1978531151U.S.A.WyomingPlatteSouthern 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.-104.704742.38471585Common in gravelly loam on a hilltop in upland grassland with Hymenoxys acaulis, Astragalus spatulatus, and Senecio canus, and in a roadcut. Phenology: flowering & fruiting.RMRM598314 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray9362B. E. Nelson1983616167U.S.A.WyomingNatronaWind River Basin: ca 0.5 mi SE of Alcova Dam on the North Platte River; ca 30 air mi SW of Casper.-106.708642.53971676Sandy-gypsum ridge. Phenology: flowering.RMRM387537 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray12543Ronald L. Hartman Gael Fonken1981510130U.S.A.WyomingNatronaWyo Hwy 220: ca 6 air mi west of Alcova.-106.826942.55421920Limestone or gypseous outcrop and loose slopes. Phenology: fruiting.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray15718Ronald L. Hartman1983624175U.S.A.WyomingNatrona: 4 road mi W of Alcova.-106.807242.55421829Red beds.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray15719Ronald L. Hartman1983624175U.S.A.WyomingNatrona: 2 road mi W of Alcova.-106.767842.56861768Red beds.RMRM598327 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray24860B. E. Nelson1993519139U.S.A.WyomingPlatte[location and coordinates withheld]13171341Rough breaks with scattered juniper and ponderosa pine and interspersed sandy areas. Phenology: flowering.RMRM598315 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray25259B. E. Nelson1993526146U.S.A.WyomingNiobraraSouthern 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.-104.609742.658617371835Cracks in limestone pavement on ridge top and adjacent stony slopes. Phenology: flowering.RMRM598326 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray25314B. E. Nelson1993526146U.S.A.WyomingGoshenSouthern Powder River Basin/Southeastern Plains: Hartville Uplift: Wildcat Hills: between the heads of Willow and Muskrat creeks, ca 43 air mi NNW of Torrington.-104.606542.5917311786Stony limestone slopes with scattered ponderosa pine. Phenology: flowering.RMRM598325 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray25356B. E. Nelson1993527147U.S.A.WyomingPlatteSouthern 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.-104.704742.384715851664Slopes below limestone cliffs. Phenology: flowering.RMRM598324 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray25398B. E. Nelson1993527147U.S.A.WyomingPlatteSouthern 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.-104.743642.342814571512Flat area with extensive limestone pavement above canyons dominated by juniper and mountain mahogany. Phenology: flowering.RMRM598323 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray27438B. E. Nelson1993726207U.S.A.WyomingPlatte[location and coordinates withheld]15121542Open stony limestone slopes with scattered ponderosa pine. Phenology: vegetative only.RMRM704439 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray30521B. E. Nelson1994519139U.S.A.WyomingPlatteSouthern 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.-105.205742.083915121536Sagebrush-grassland slopes and benches with fine gravelly soils and cobblestones. Phenology: vegetative only.RMRM704438 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray30940B. E. Nelson1994526146U.S.A.WyomingPlatteSouthern 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.-104.973341.761317191753Cobblestone slopes with grasslands in shallow swales and draws. Phenology: fruiting.RMRM704437 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray32714B. E. Nelson1994711192U.S.A.WyomingNiobraraSouthern 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.-104.521842.650616281676Fine grained black stone hill. Phenology: vegetative only.RMRM600620 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray5860Robert D. Dorn1995510130U.S.A.WyomingGoshen3 mi WNW of Ft. Laramie.-104.568842.22671310Limey-sandstone ledges with Phlox hoodii. Phenology: flowering.RMRM600621 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray5878Robert D. Dorn1995521141U.S.A.WyomingPlatte15 mi SW of Wheatland.-105.186441.92261646Rocky ridge with Astragalus spatulatus and Hymenoxys. Phenology: flowering.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7902Robert D. Dorn1999511131U.S.A.WyomingPlatte8 mi N of Wheatland.-104.940842.18371402Cobbley ridge with Arenaria hookeri and Cryptantha cana.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7903Robert D. Dorn1999511131U.S.A.WyomingPlatte8 mi N of Wheatland.-104.940842.16931402Cobbley ridge with Astragalus sericoleucus and A. gilviflorus.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7904Robert D. Dorn1999511131U.S.A.WyomingPlatte7 mi NNE of Wheatland.-104.940842.1551432Cobbley ridge with Astragalus sericoleucus and Cryptantha cana.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7905Robert D. Dorn1999511131U.S.A.WyomingPlatte7 mi NNE of Wheatland.-104.921342.1551432Cobbley ridge with Astragalus sericoleucus and Cryptantha cana.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7907Robert D. Dorn1999511131U.S.A.WyomingPlatte5 mi NE of Wheatland.-104.901742.1121371Cobbley knob with Paronychia and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7908Robert D. Dorn1999512132U.S.A.WyomingPlatte5 mi SW of Glendo.-105.098242.44261493Chalky outcrop with Astragalus spatulatus and Senecio canus.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7910Robert D. Dorn1999512132U.S.A.WyomingPlatte15 mi NNW of Wheatland.-105.058342.26971493Rocky slope with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7911Robert D. Dorn1999512132U.S.A.WyomingPlatte13 mi NNW of Whealtand.-105.038742.25541524Rocky slope with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7912Robert D. Dorn1999512132U.S.A.WyomingPlatte4 mi SE of Wheatland.-104.876442.02521463Gravelly slope with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7913Robert D. Dorn1999512132U.S.A.WyomingPlatte4.5 mi SE of Wheatland.-104.891643.57161463Limestone outcrop with Cryptantha cana and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7914Robert D. Dorn1999512132U.S.A.WyomingPlatte5 mi SE of Wheatland.-104.876441.99591493Sandstone-limestone outcrop with Arenaria hookeri and Eriogonum.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7915Robert D. Dorn1999512132U.S.A.WyomingPlatte6 mi SE of Wheatland.-104.876441.98121463Gravelly ridge with Haplopappus nuttalii and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7916Robert D. Dorn1999512132U.S.A.WyomingPlatte7 mi SE of Wheatland.-104.876441.95191493Gravelly slope with Paryonychia and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7918Robert D. Dorn1999513133U.S.A.WyomingPlatte8 mi NW of Chugwater.-104.953941.80531646Rocky ridge with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7920Robert D. Dorn1999513133U.S.A.WyomingPlatte8 mi NW of Chugwater.-104.973341.821676Rocky ridge with Haplopappus nuttalli and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7921Robert D. Dorn1999513133U.S.A.WyomingPlatte8.5 mi NW of Chugwater.-104.973341.83461707Mountain mahogany with Viola nuttallii and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7923Robert D. Dorn1999513133U.S.A.WyomingPlatte9 mi NW of Chugwater.-104.973341.84931676Rocky slope with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7924Robert D. Dorn1999513133U.S.A.WyomingPlatte10 mi NW of Chugwater.-104.953941.8641646Gravelly grassland with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7926Robert D. Dorn1999513133U.S.A.WyomingPlatte7.5 mi WNW of Chugwater.-104.973341.79071707Rocky ridge with Artemisia frigida and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7927Robert D. Dorn1999513133U.S.A.WyomingPlatte7 mi W of Chugwater.-104.973341.7761737Rocky ridge with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7928Robert D. Dorn1999513133U.S.A.WyomingPlatte7 mi W of Chugwater.-104.973341.76131737Rocky ridge with Astragalus spatulatus and Arenaria hookeri.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7929Robert D. Dorn1999518138U.S.A.WyomingPlatte15 mi NE of Wheatland.-104.666742.14071463Rocky limestone ridge with Cercocarpus and Arenaria hookeri.RMRM598322 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray39471Ronald L. Hartman199371182U.S.A.WyomingPlatte[location and coordinates withheld]14931524Limestone outcrops and calcareous grasslands with juniper. Phenology: vegetative only.RMRM598321 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray39801Ronald L. Hartman199374185U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34, ca 4 air mi E of Albany County.-105.213341.8951603Sandy plains with short-grass prairie. Phenology: vegetative only.RMRM598320 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray39843Ronald L. Hartman199374185U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: ca 7 air mi E of Albany County.-105.136141.90941600Sandy slopes. Phenology: vegetative only.RMRM598319 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray39931Ronald L. Hartman199374185U.S.A.WyomingPlatte[location and coordinates withheld]1493Calcareous slopes and sandy flats. Phenology: vegetative only.RMRM598318 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray40023Ronald L. Hartman199374185U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Johnson Reservoir 3, ca 6 air mi NNW of Wheatland.-104.99542.12561371Sandy slopes and lake margin. Phenology: vegetative only.RMRM598317 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray40041Ronald L. Hartman199374185U.S.A.WyomingPlatte[location and coordinates withheld]1432Sandy slopes. Phenology: vegetative only.RMRM598316 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray40848Ronald L. Hartman1993711192U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Wyo Hwy 34 and I-25 interchange, ca 7 mi S of Wheatland.-104.951741.96751493Sandy slopes and stream bottom. Phenology: vegetative only.RMRM364810 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Grays.n.Robert E. Pfadt1984514135U.S.A.WyomingPlatteHartville Uplift: ca 7 air mi NNE of Hartville and Sunrise; ca 11.5 air mi NNE of Guernsey, West Hill.1615Phenology: flowering.RMRM329192 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray2575Robert W. Lichvar198052123U.S.A.WyomingPlatteLimestone Mountain.1463Common on limestone soils; with Carex, Cercocarpus. Phenology: flowering & fruiting.RMRM601811 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray13806Walter Fertig199365156U.S.A.WyomingNatronaNorth 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.1945Cushion plant community on siltstone and fragmented limestone gravel deposits on windy rim above gypsum deposits. Phenology: flowering.RMRM601882 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray13532Walter Fertig1993521141U.S.A.WyomingNatronaNorth 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.-106.8269442.554171932Bluffs of pale sandy soil along dirt road; cushion plant community with Phlox muscoides, Artemisia nova, and Parthenium. Phenology: flowering.RMRM601812 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray13797Walter Fertig199365156U.S.A.WyomingNatronaNorth 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.-106.688442.5841676Cushion plant community on gravelly wind-swept ridge top. Local on ridgetop. Phenology: fruiting.RMRM601883 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray13556Walter Fertig1993522142U.S.A.WyomingNatronaNorthern Platte River Valley: slopes on southwest side of Alcova Reservoir and W of Fremont Canyon, ca 33 air mi SW of Casper.17071798Sandy soil pockets and gravelly limestone-sandstone outcrops on northeast-facing slopes in open ponderosa pine/Utah juniper woodland. Phenology: flowering.RMRM602522 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray15303Walter Fertig199484216U.S.A.WyomingPlatteSoutheast Plains: Hartville Uplift; ridge S of Good Fortune Mine, ca 3/4 air mi SE of Sunrise Mine.1542Reddisf-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.RMRM602611 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray15617Walter Fertig199552122U.S.A.WyomingNatronaNorth Platte River Basin: east-west trending ridge on north side of Eagle Creek, ca 1 mi N of Alcova Dam.16761737Utah juniper-Wyoming big sagebrush-threadleaf sedge grassland on north-facing slope of Alcova limestone and redbeds. Phenology: flowering & fruiting.RMRM602336 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray15289Walter Fertig199483215U.S.A.WyomingPlatteHartville Uplift: ca 0.5 mi W of Graves Ranch site; ca 1 mi S of Sunrise.-104.705942.31271463South facing gravelly sandstone-limestone slope in Cercocarpus montanus-Bouteloua curtipendula community; locally common in openings among shrubs. Locally common. Phenology: vegetative only.RMRM841651 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray3304Bonnie Heidel2009615166U.S.A.WyomingAlbanyShirley Basin: above Cameron Creek, ca 9 air mi SW of Shirley Basin (town site), ca 2.3 mi S of Wyo Hwy 77.2164On low line jutting limestone outcrops, south aspect, shallow silt loam, with Cercocarpus montanus, Elymus spicatus, Phlox muscoides, Paronychia depressa. Occasional. Phenology: flowering.RMRM841666 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray3316Bonnie Heidel2009622173U.S.A.WyomingCarbonShirley Mountains: ridge W of Cave Creek, ca 24 mi S of Alcova.2439On extensive limestone outcrop with bedding planes at different angles and aspects, with Elymus spicatus, Cymopterus longipes, Stenotus acaulis, scattered Pinus flexilis. Uncommon. Phenology: flowering.RMRM841670 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray3307Bonnie Heidel2009615166U.S.A.WyomingCarbonShirley Basin: north side of Canyon Creek, both east and west sides of Kortes Road, ca 11 air mi NE of Leo.20122030Upper 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.RMRM1009499 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray8847Ronald L. Hartman B. E. Nelson197964155U.S.A.ColoradoMoffatAcross 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.-108.771740.76951859Calcareous rim. Phenology: flowering.RMRM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray89C. H. Refsdal1993622173U.S.A.WyomingNatronaAlcova, ca 1.2 mi W on Wyo Hwy 220 on north side of highway.-106.748142.5683Badlands. No elevation given. Phenology: vegetative only.RMRM957850 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray261Patricia P. Douglas Carlos A. Popolizio, Rosalie M. Smith1995615166U.S.A.WyomingPlatteCamp Guernsey: ca 1.9 km WSW of Register Cliff Historical Monument, ca 1.6 km S of North Platte River.1372Cliffs 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.RMRM961488 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray113Nancy E. Hastings P. Block2007522142U.S.A.WyomingPlatteCamp Guernsey: Walsh Ranch parcel; west end of transect ca 5.9 km NE of Guernsey Reservoir, ca 3.2 km SW of Range Guard 4.1506South 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.RMRM957255 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray7968Amy J. Roderick199888220U.S.A.WyomingNatronaUpper 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.-106.88542.4821823Barren gravelly knoll. Phenology: fruiting.RMRM600393 Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray5878Robert D. Dorn1995521141U.S.A.WyomingPlatte15 mi SW of Wheatland.-105.186441.92261646Rocky ridge with Astragalus spatulatus and Hymenoxys. Flowers white. Phenology: flowering.RM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray50315Ronald L. Hartman Timothy W. Chumley1995521141U.S.A.ColoradoPuebloEast-central Colorado: Mosquito Range to Plains: ca 12 air mi NW of center of Pueblo at Turkey Creek on U.S. Hwy 50.-104.929838.35431585Shale rimrock with pinyon-juniper, stream bottom, and grasslands. Phenology: fruiting.RM Parthenium alpinumphysical specimenAsteraceaePartheniumalpinum(Nutt.) Torr. and A. Gray50335Ronald L. Hartman Timothy W. Chumley1995521141U.S.A.ColoradoPueblo[location and coordinates withheld]1585Limy area with caprock; pinyon-juniper. Phenology: fruiting.36003,1,0true