: 1.21 $2024-03-29T13:49:13-7:003.238.118.192searchRM Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5961Laura Welp199571182U.S.A.WyomingFremontGreat Divide Basin Area: Great Divide Basin: ca 8 air mi ENE of Continental Peak; ca 7 air mi SW of St. Marys Peak.-108.564242.314222562329Steep east facing slope of draw on rim with grasses and scattered sagebrush; fine sandy soil. Phenology: flowering.RMRM629178 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck51213Ronald L. Hartman1995625176U.S.A.WyomingSubletteGreen River Basin: ca 9 air mi SW of Ross Butte.-109.999342.469621642195Mesa rim and slopes. Phenology: flowering.RMUSFS850521 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck428Rob Massatti2005615166U.S.A.WyomingFremontEast Slope Wind River Range and Vicinity: 1.5 mi S of Weiser Knoll, ca 16 mi SSE of Lander.-108.619242.633919601975Juniper/pine woodland along Nugget sandstone cliff. Phenology: flowering.RMRM Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck14Rachel Newton2005610161U.S.A.WyomingFremontWetlands and Adjacent Areas: along the Sweetwater River, ca 5 air mi NE of Sweetwater Station; ca 38 air mi SE of Lander.-108.076542.58011992Up sandy, rocky slopes and ridgetop. Phenology: flowering.RMRM222680 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5671C. L. Porter R. C. Rollins1951628179U.S.A.WyomingSweetwaterHenry's Fork near McKinnon.-109.949241.0522134Sandy soil, in a cottonwood grove along the river. Flowers blue. *southwestern Sweetwater county* Phenology: flowering & fruiting.RMRM247895 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6657C. L. Porter1955620171U.S.A.WyomingFremontTop of Beaver Hill 32 mi SE of Lander on U.S. Hwy 287.-108.300442.58311951Chalky bluffs. Flowers blue. Phenology: flowering.RMRM740623 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck22720N. Duane Atwood1997618169U.S.A.WyomingSweetwaterFlats below N base of Pine Mtn.2256Rabbitbrush/Tetradymia/grass community. Sandy soil. Phenology: flowering & fruiting.RMRM740605 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck22757N. Duane Atwood1997619170U.S.A.WyomingSweetwaterRed Creek Badlands along rim above Red Creek Ranch.22862362Along rim. Clay-shale, gypsum hills; Pinyon/juniper/mountainbrush community. Phenology: flowering & fruiting.RMRM643049 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck7981Robert D. Dorn1999626177U.S.A.WyomingUintaCa 6 mi SW of Ft. Brider, south end of Bridger Butte.-110.478641.26482134Open Utah juniper with Eriogonum caespitosum and Cryptantha. Corolla dark blue. Phenology: flowering.RMRM643158 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck8014Robert D. Dorn199974185U.S.A.WyomingUintaSouthwest side of Cedar Mountain.-110.095641.09162439Barren clay slope with Hymenopappus and Cercocarpus. Corolla blue.RMRM718008 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck9108Robert D. Dorn200261152U.S.A.WyomingSweetwaterBlue Rim 0.4 mi N of junction of County roads 5 and 14.-109.57666741.7616672103Silty sand below light brown sandstone outcrop capped with gray-white siltstone with Stenotus armerioides, Eriogonum brevicaule. Broad-leaved form; flowers blue. Phenology: flowering.RMRM724334 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck16756Walter Fertig199674186U.S.A.WyomingLincolnOverthrust Belt: ridge at southwest tip of Sillem Ridge, ca 1.5 mi SW of Windy Point, on east side of Bridger Creek, ca 6 air mi S of Sage Junction.1981West-facing slopes of fine, white gypsum-like sandstone; surface dry, soil fine-textured with tiny gravel; cushion plant-low forb-bunchgrass community with scattered Artemisia nova, Tetradymia canescens, and Purshia tridentata. Phenology: flowering & fruiting.RMRM703461 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17473Walter Fertig199767158U.S.A.WyomingLincolnOverthrust Belt: ridge on south side of South Fork Slate Creek, ca 0.3 mi N of U.S. Hwy 189 and ca 0.6 mi NW of Round Mountian.-110.413741.897122072231Semi-bare chalky lower slopes of west-facing ridge in cushion plant community with Phlox muscoides, Arenaria hookeri, and Astragalus jejunus. Phenology: flowering & fruiting.RMRM682419 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17669Walter Fertig Laura Welp199779190U.S.A.WyomingFremontSweetwater River Plateau: Beaver Divide, southeast end of Dishpan Butte, 1 1/4 air mi W of junction of Dishpan Butte Road and Wyo Hwy 135.-108.218642.6320792097Sparsely vegetated cushion plant community of silty white sandstone within Artemisia tridentata/A. nova grassland; dominant cushion species include Ivesia gordonii, Astragalus kentrophyta, Eriogonum brevicaule, and Haplopappus nuttallii. Phenology: fruiting.RMRM682431 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17676Walter Fertig Laura Welp1997711192U.S.A.WyomingFremontSweetwater River Plateau: Beaver Rim, slopes above southwest end of Muskrat Basin, ca 2.5 air mi W of road leading from Jeffrey City to Lucky Mac Mine.-107.806842.671320882109North-facing slope of semi-bare whitish calcareous chalky soil with loose coarse gravel; forb community dominated by Ivesia gordonii and Eriogonum ovalifolium surrounded by shrub community of Purshia and Artemisia tridentata. Anthers lightly pubescent. Phenology: flowering & fruiting.RMRM682338 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17692Walter Fertig Laura Welp1997712193U.S.A.WyomingFremontSweetwater River Plateau: ridge system on northeast and north side of Big Diamond Spring Draw, ca 0.5-1 mi N of Diamond Springs Road; ca 2-2.3 mi W of Natrona County.-107.590642.729521492164West- and south-facing 10-30% slope on fine-textured, light, silty, chalky soil; cushion plant community with 10-20% vegetative cover; dominant spp. include: Haplopappus acaulis, Eriogonum flavum, Arenaria hookeri, and Elymus spicatus. Phenology: fruiting.RMRM724258 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck18246Walter Fertig1998618169U.S.A.WyomingSweetwaterGreen River Basin: south slope of White Mountain, ca 1.4 mi NW of Kanda siding on north side of I-80, ca 5 air mi NE the city of Green River.20422134Steep, east-facing gray clay-shale barren slope with whitish slate fragmatns on surface and "book-leaf" slate outcrops. Cushion plant/ Elymus salinus community with average vegetative cover of 5-10% (bare soil ca 75% and rock 2). With Arenaria Phenology: flowering & fruiting.RMRM683831 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck19159Walter Fertig2000713195U.S.A.WyomingFremontGreat Divide Basin: sand dunes on south side of Green Mountain, on south side of Crooks Creek opposite the confluence of Daniel Creek, ca 9 air mi WNW of Bairoil.-107.746342.282422622274Small blowout hollows of Psoralidium lanceolatum, Phacelia hastata, and Elymus lanceolatus; cover ca 15-20%. Phenology: flowering & fruiting.RMRM957257 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4361Amy J. Roderick199862153U.S.A.WyomingNatronaUpper North Platte and Laramie River Drainages: Rattlesnake Hills: McDougal Gulch N of Dry Creek or County Road 321, ca 14.8 air mi NW of junction with Wyo Hwy 220.-107.317542.70062103Chalky bluffs dominated by cushion plants. Phenology: flowering.RMRM792723 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck1357Beth Ward1996623175U.S.A.WyomingSweetwaterSouth-central Wyoming: Rock Springs Uplift: drainages from White Mountain to Killpecker Creek, ca 4 air mi E of The Wells; ca 20.5 air mi NNW of Rock Springs.21372225Badlands slopes. Phenology: flowering & fruiting.RMRM792724 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck2220Beth Ward1996710192U.S.A.WyomingSweetwater[location and coordinates withheld]19721996Hillsides adjacent to creek. Phenology: flowering & fruiting.RMRM792301 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4988Beth Ward1997611162U.S.A.WyomingSweetwater[location and coordinates withheld]21582277South-facing clay, sand slope. Phenology: flowering.RMRM792300 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5046aBeth Ward1997611162U.S.A.WyomingSweetwaterSouth-Central Wyoming: Green River Basin: draws and slopes from White Mountain draining to Bitter Creek, ca 2 air mi NW of Bitter Creek; ca 5.5 air mi WSW of Rock Springs.-109.339841.568320672295Open, clay slop Phenology: flowering.RMRM792302 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5129Beth Ward1997613164U.S.A.WyomingSweetwaterSouth-Central Wyoming: Green River Basin: draws and slopes from White Mountain draining to Killpecker Creek, ca 1 air mi S of Chicken Springs; ca 3 air mi W of the Boars Tusk; ca 25 air mi NNW of Rock Springs.-109.254641.971521002240Open clay slope. Phenology: flowering.RMRM792303 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5772Beth Ward1997620171U.S.A.WyomingSweetwaterSouth-Central Wyoming: west slopes and draws of Oregon Buttes at the southern end, ca 10 air mi SE of Wyo Hwy 28; ca 29 air mi ENE of Farson.-108.87642.228422862420Protected clay slope. Phenology: flowering.RMRM792304 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6159Beth Ward1997624175U.S.A.WyomingSweetwaterSouth-Central Wyoming: Green River Basin: east-facing draws and slopes and butte top of part the Blue Rim, ca 6 air mi NE of the Green River; ca 3 air mi NW of Alkali Creek; ca 19.5 air mi NW of Rock Springs.-109.570241.746320482091West-facing, rocky, steep slope. Phenology: flowering.RMRM389060 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4423June Haines1985621172U.S.A.WyomingFremontWind River Basin: Gas Hills Mining District; sandstone rocks E of Iron Springs Reservoir, ca 6.5 air mi ENE of the junction of Wyo Hwy 136 and Ore Road (main road through the Gas Hills Mining District).-107.532542.843820302054Sandy area below sandstone rocks. Phenology: flowering.RMRM389061 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6423June Haines Georgia Haines1986614165U.S.A.WyomingFremontGranite Mountain Uplift: top of Beaver Rim: Devils Gap, ca 7 air mi NNW of Sweetwater Station.-108.258342.629220732164South-facing slope. Phenology: flowering.RMRM389062 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6706June Haines1986620171U.S.A.WyomingFremontWind River Basin: Red Canyon Rim, ca 14 air mi SSE of Lander.-108.629842.643918591981Sagebrush-juniper grassland. Phenology: flowering.RMRM389063 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6919June Haines Georgia Haines1986720201U.S.A.WyomingFremontBeaver Rim, ca 6 air mi NW of Sweetwater Station.-108.277942.599920362109Limestone slopes. Phenology: flowering & fruiting.RMRM389064 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck13318Ronald L. Hartman1981628179U.S.A.WyomingFremontWind River Basin: Beaver Rim just S of Muskrat Basin.-107.805642.67362073Limestone and conglomerate outcrops at top of rim and slopes below. Phenology: flowering & fruiting.RMRM629177 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck10211Thomas Cramer Jane T. Kellett199582214U.S.A.WyomingSweetwaterGreen River Basin: East Buckhorn Draw at the confluence with West Buckhorn Draw in Eighteenmile Canyon, ca 20 air mi WNW of Farson.-109.8142.213120542103Shale and sandstone canyonside with sparse sagebrush. Phenology: flowering & fruiting.RMRM629277 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck320Thomas Cramer1994611162U.S.A.WyomingSubletteGreen River Basin: north side of Ross Butte overlooking New Fork River, ca 10 air mi E of Big Piney.-109.898942.574220732280Open slopes, intermittent sagebrush, and badlands. Phenology: flowering.RMRM629173 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6285Thomas Cramer Jane T. Kellett1995617168U.S.A.WyomingSweetwaterGreen River Basin: Buckhorn Canyon, ca 14 air mi NE of Fontenelle Dam.-109.887942.18382103Sandy sagebrush draw down canyonside. Phenology: flowering.RMRM629174 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6898Thomas Cramer Jane T. Kellett1995623174U.S.A.WyomingSubletteGreen River Basin: ca 20 air mi NE of Farson.-109.187342.37412225Sagebrush hillside and draws. Phenology: flowering.RMRM629175 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6941Thomas Cramer Ronald L. Hartman1995625176U.S.A.WyomingSubletteGreen River Basin: North Alkali Draw, ca 15 air mi E of Big Piney.-109.822342.52662164Eroded clay hillsides with Atriplex. Phenology: flowering.RMRM629176 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck7466Thomas Cramer199578189U.S.A.WyomingSubletteGreen River Basin: ca 5 air mi ESE of Big Piney.-110.037942.513221032134Shale slope with sparse sagebrush. Phenology: flowering & fruiting.RMRM628875 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck944Thomas Cramer1994620171U.S.A.WyomingSubletteGreen River Basin: formation just NW of Squaw Teat, ca 4 air mi S of Elkhorn Junction.-109.207842.370321952297Sandstone/conglomerate cliff with open top and open sides with Cercocarpus patches. Phenology: flowering.RMRM627915 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck35099B. E. Nelson C. H. Refsdal1995618169U.S.A.WyomingSweetwaterBasins and Mountains of Southwest Wyoming: ca 0.5 to 1 air mi N of Henrys Fork W of County Road 1 on lower southeast slopes of Cedar Mountain, ca 40 air mi SW of Green River; ca 11 air mi NW of Manila, Utah.-109.951841.064221342164Along dry wash in sandy or gravelly soils. Phenology: flowering & fruiting.RMRM841780 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3065Bonnie Heidel200866158U.S.A.WyomingSubletteGreen River Basin: west side of Alkali Creek, ca 18 air mi NE of LaBarge.2140In broad valley on fine sand around small sandstone outcrops along incised drainageways, with Eriogonum cernuum, Achnatherum hymenoides, Euphorbia brachycera var. robusta. Occasional. Phenology: flowering.RMRM906762 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3419Bonnie Heidel201071182U.S.A.WyomingFremontSweetwater Valley: east side of Alkali Creek, ca 9 air mi SW of Sweetwater Station.2103On eroded valley outwash slope, fine sand, 5% slope, southwest aspect; occurs with Elymus spicatus, Eriogonum caespitosum, and Phlox muscoides. Occasional. Phenology: flowering.RMRM915151 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3813Bonnie Heidel Victoria Pennington2013612163U.S.A.WyomingFremontBeaver Rim: above Muskrat Basin, ca 14 air mi N of Jeffrey City.2091Gravelly limestone barrens at bend in rim; with Phlox muscoides. Phenology: flowering.RMRM690932 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck722C. H. Refsdal R. H. Lathrop1994611162U.S.A.WyomingUintaBasins and Mountains of Southwest Wyoming: Cedar Mountain, ca 3 air mi NE of Lonetree; ca 3.3 road mi E of Cedar Mountain Road from Wyo Hwy 414, west flank of the mountain.-110.132541.091423472378Badlands with gentle, white, sandy slopes. Phenology: flowering.RMRM627916 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck35099B. E. Nelson C. H. Refsdal1995618169U.S.A.WyomingSweetwaterBasins and Mountains of Southwest Wyoming: ca 0.5 to 1 air mi N of Henrys Fork W of County Road 1 on lower southeast slopes of Cedar Mountain, ca 40 air mi SW of Green River; ca 11 air mi NW of Manila, Utah.-109.951841.064221342164Along dry wash in sandy or gravelly soils. Phenology: flowering & fruiting.RMRM627913 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck35161B. E. Nelson C. H. Refsdal1995618169U.S.A.WyomingUintaBasins and Mountains of Southwest Wyoming: along Leavitt Creek below the south end of Cottonwood Bench, ca 7 air mi ESE of Mountain View; ca 39.5 air mi E of Evanston.-110.209141.235720422091Steep soft clay slopes in the badlands. Phenology: flowering & fruiting.RMRM627914 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck36436B. E. Nelson C. H. Refsdal199577188U.S.A.WyomingUintaBasins and Mountains of Southwest Wyoming: Bridger Butte, ca 5.5 air mi WSW of Fort Bridger; ca 25.5 air mi E of Evanston.-110.477241.27922252286Sagebrush flats on top of the butte with fine gravel covered soft soils. Phenology: flowering & fruiting.RMRM627903 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3928C. H. Refsdal1995612163U.S.A.WyomingSweetwater[location and coordinates withheld]20182073Steep semi-barren badlands, clay soils. Phenology: flowering & fruiting.RMRM627912 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4020C. H. Refsdal1995614165U.S.A.WyomingUintaBasins and Mountains of Southwest Wyoming: ca 11 air mi SE of Lyman; 15.6 mi W on BLM Road 4315 (Burnt Fork Road).-110.059241.238320602079Dry drainage bottom, clay soils with sand, Atriplex. Phenology: flowering & fruiting.RMRM601799 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck14831Walter Fertig199468159U.S.A.WyomingFremontEast slope Wind River Range: Red Canyon Rim above Foster Draw, ca 15 air mi SSE of Lander.-108.629842.62921935Redbeds of Chugwater Formation with thin layer of grey shale slabs and pale pink sandstone; on dry, fine textured soil in open and at edge of sagebrush grassland. Phenology: flowering.RMRM601796 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck14839Walter Fertig1994613164U.S.A.WyomingFremontWest Wind River Basin: Beaver Rim Divide: south end of Cedar Rim.-108.180142.62922073White, fine-textured clay-sand of the Split Rock Formation on south-facing base of low rim; with Yermo, Cirsium aridum, Phlox muscoides, and Oryzopsis hymenoides. Phenology: flowering.RMRM615945 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17455Walter Fertig199765156U.S.A.WyomingSweetwaterRock Springs Uplift: east-west trending ridge system, ca 1 mi S of Bitter Creek; ca 1 3/4 mi E of the Green River on north slope of Mount 7057.-109.416641.50920122042West-facing slopes of loose gray clay-shale with surface of brownish-reddish sandstone with bluish slate fragments; community of Haplopappus armerioides, Phlox, Minuartia nuttallii, and Cymopterus terebinthinus in openings amid Artemisia tridentata-Oryzopsis hymenoides grassland. Phenology: flowering.RMRM632852 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck16767Walter Fertig199674186U.S.A.WyomingLincolnOverthrust Belt: northwest end of Bear River Divide, ca 2 mi SW of Elk Mountain; ca 7 air mi S of Orr (on ridge near the head of North Bridger Creek).-110.875941.701823322347Rim of white chalky sandstone with surface of sandstone gravel flakes; low forb-cushion plant community with scattered Kraschenninikovia lanata, Chrysothamnus viscidiflorus, and Poa secunda; mostly in low draws in sandstone slope.. Phenology: flowering.RMRM633129 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck18310Walter Fertig1998630181U.S.A.WyomingSubletteGreen River Basin: Little Colorado Desert: upper end of northeast branch of Figure Four Canyon along ridge system on north side of BLM Road, ca 5.2 mi E of "The Frog" and 8.5 mi NE of La Barge.-110.024142.330921342164South and west-facing slopes of chalky white shale ridge capped by brown shaley sandstone with or without cover of whitish slate flakes; semi-barren cushion plant community of Haplopappus armerioides, Poa secunda, and Phlox pungens. Phenology: flowering.RMRM615944 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17420Walter Fertig1997531151U.S.A.WyomingSubletteGreen River Basin: east end of Ross Ridge, ca 0.5-1 mi W of the Burma Road on North Alkali Draw Road, ca 4 3/4 mi S of Wyo Hwy 351.-109.821642.54192164Southeast-facing slopes of low butte on fine whitish-tan to purplish silty clay below siltstone caprock rim; community of Chrysothamnus nauseosus and Artemisia tridentata var. wyomingensis. Phenology: flowering.RMRM615963 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17445Walter Fertig199764155U.S.A.WyomingSweetwaterRock Springs Uplift: east-west trending ridge immediately N of Wilkins Peak Ridge, ca 1 mi W of radio tower on Wilkins Peak; ca 5.5 air mi SE of the city of Green River.-109.35941.49422073South-facing slopes of bleached gray slate scree over fine textured gray clay-shale soil; sparsely vegetated cushion plant community of Arenaria hookeri, Haplopappus armerioides, Elymus in openings in Juniperus osteosperma community. Corolla light blue; anthers pubescent. Phenology: flowering.RMRM602920 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck15908Walter Fertig199579190U.S.A.WyomingSubletteGreen River Basin: north end of Ross Butte, ca 0.5 mi S of New Fork River, ca 20 air mi S of Pinedale.21642274Sandy or clay-shale bare slopes of badlands on north side of butte. Phenology: flowering.RMRM579626 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck13999Walter Fertig1993623174U.S.A.WyomingSubletteGreen River Basin: Yellow Point Ridge area, ca 31.5 air mi S of Pinedale.-109.723942.439221702195Limestone-gravel ridge on east-facing slope; cushion plant community with Phlox muscoides, Astragalus kentrophyta, and A. spatulatus. Phenology: flowering.RMRM551611 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5082Robert D. Dorn1990626177U.S.A.WyomingUintaCa 10 mi S of Evanston.2195Barren clay slope with Artemisia arbuscula var. longiloba, Astragalus. Corolla blue-purple. Phenology: flowering.RMRM551612 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5081Robert D. Dorn1990625176U.S.A.WyomingUintaCa 7 mi SSE of Evanston.2195Barren clay slope with Haplopappus, Astragalus spatulatus. Corolla blue-purple. Phenology: flowering.RMRM399107 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4593Robert D. Dorn198767158U.S.A.WyomingSubletteAbove Little Sandy Creek.2134Clay slopes with Eriogonum, Arenaria. Corolla blue-purple. Phenology: flowering.RMRM306676 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck2970Robert D. Dorn197773184U.S.A.WyomingSweetwater-108.965142.13232195Calcareous shale slope, with Sphaeromeria and Eriogonum. Corolla blue. Phenology: flowering.RMRM594656 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5594Robert D. Dorn1994528148U.S.A.WyomingSweetwater17 mi NNW of Green River.2073Barren, sandy-clay hills with Haplopappus, Ipomopsis, Tetradymia. Corolla blue-purple. Phenology: flowering.RMRM399073 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4595Robert D. Dorn198767158U.S.A.WyomingSublette2378Sandy-calcareous-clay slope with Ipomopsis crebrifolia, Arenaria. Corolla blue-purple. Phenology: flowering.RMRM330281 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3505Robert D. Dorn198072184U.S.A.WyomingSweetwater-109.0497641.079582469Shaley slope with Astragalus and Senecio. Corolla blue. Phenology: flowering.RMRM531776 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5307Erwin F. Evert198373184U.S.A.WyomingFremontAlong Red Canyon Rim, ca 14 air mi SSE of Lander.-108.610242.62921951Sandstone crevices in the sagebrush-juniper zone. Phenology: flowering.RMRM370769 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4355Robert D. Dorn1986630181U.S.A.WyomingNatrona-106.767242.64152012Steep barren slope in loose soil, with Phacelia hastata, Astragalus. Flower blue-purple. Phenology: flowering.RMRM353691 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5039Robert W. Lichvar1982617168U.S.A.WyomingLincolnNE of Kemmerer.2225Clay slopes with Cymopterus and Physaria. Phenology: flowering.RMRM362305 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck1295Betsy E. Neely1983625176U.S.A.WyomingLincolnBear River Divide: slopes between Clear Creek and South Fork Twin Creek, 7.5 air mi SW of Kemmerer.-110.705541.76272164Wasatch formation, dry clay soils with Atriplex gardneri. Phenology: flowering.RMRM342240 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17144Sherel Goodrich N. Duane Atwood1982630181U.S.A.WyomingUinta21.6 mi on I-80, [from] Utah.2103Raw ground of a steep roadcut. Phenology: flowering.RMRM267808 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck245V. June Wetherell196068160U.S.A.WyomingFremontBeaver Hill, 32 mi SE of Lander along U.S. Hwy 287.-108.3050242.5855419202012Dry, chalky hillside. Phenology: flowering.RMRM264962 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck8578C. L. Porter Marjorie W. Porter1961613164U.S.A.WyomingFremontBeaver Hill, ca 35 mi E of Lander.-108.298642.59491951Light, clayey slopes. Locally abundant, flowers lavendar-blue. Phenology: flowering.RMRM316498 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck1845Robert W. Lichvar1979622173U.S.A.WyomingFremontBeaver Rim.2057Shaley areas along the rim edge with Astragalus, Senecio. Frequent. Phenology: flowering.RMRM155394 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck6245George E. Osterhout1922628179U.S.A.WyomingUintaE of Evanston.-110.860241.264621032134Phenology: flowering.RMRM319058 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck299Ray A. Christensen1979629180U.S.A.WyomingUintaCa 61 air mi SW of Pilot Butte; ca 50 air mi SW of Green River.-110.229641.06282603Associated with Artemisia tridentata, Eriogonum ssp., Penstemon caespitosus on shallow loamy soil. Phenology: flowering.RMRM329554 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3003Robert W. Lichvar198072184U.S.A.WyomingUintaN of Carter.2073Clay slope with Astragalus, Phlox. Frequent. Phenology: flowering.RMRM342257 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck17174Sherel Goodrich N. Duane Atwood1982630181U.S.A.WyomingUintaEast side of Hickey Mountain, ca 5 mi N, 25 deg W of Lonetree.-110.1941.09142378Raw soil of eroding nearly barren, scatter juniper and desert shrubs, sagebrush community. Phenology: flowering.RMRM316519 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck1841Robert W. Lichvar1979622173U.S.A.WyomingFremontBeaver Rim.2057In shaley soil along edge of rim, with Senecio, Astragalus. Phenology: flowering.RMRM306710 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck2920Robert D. Dorn1977612163U.S.A.WyomingSweetwaterOregon Buttes, southeast side.-108.836742.23732317Calcareous clay slope, with Castilleja, Haplopappus. Corolla blue. Phenology: flowering.RMRM329195 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck2722Robert W. Lichvar198064156U.S.A.WyomingUintaI-80 exit ramp at Ft. Bridger.2134South-facing slope, clayey soil; with Stanleya, Phacelia. Phenology: flowering & fruiting.RMRM329555 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck2865Robert W. Lichvar1980612164U.S.A.WyomingUintaCa 5 mi SSW of Carter.-110.458141.36562012On clay slopes with Physaria and Artemisia. Rare. Phenology: flowering.RMRM329544 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3514Robert D. Dorn198073185U.S.A.WyomingSweetwater2225Barren shale hills with Phlox, Ipomopsis. Blue corolla. Phenology: flowering & fruiting.RMRM353690 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5027Robert W. Lichvar1982615166U.S.A.WyomingUintaBridger Butte.-110.477241.2792225Clay slope with Artemisia and Poa. Phenology: flowering.RMRM329483 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck3443Robert D. Dorn198064156U.S.A.WyomingUintaI-80 exit at Ft. Bridger.-110.3866441.316772103Barren bank with Stanleya and Penstemon arenicola. Corolla purple. Phenology: flowering & fruiting.RMRM306711 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck2934Robert D. Dorn1977620171U.S.A.WyomingLincoln-110.597841.79742134Shallow gully, with Artemisia and Iva. Corolla blue. Phenology: flowering & fruiting.RMRM260428 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck26V. June Wetherell Jean Finzel195968159U.S.A.WyomingFremontBeaver Hill: ca 32 mi SE of Lander on U.S. Hwy 287.-108.296842.58591951Dry chalky hillside. Phenology: flowering.RMRM354514 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck1110June Haines1980624176U.S.A.WyomingFremontBeaver Rim.2237Phenology: flowering.RMRM688322 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4596C. H. Refsdal1995630181U.S.A.WyomingLincolnBasins and Mountains of Southwest Wyoming: ca 12 air mi SE of Opal; 18.3 mi E of junction U.S. Hwy 30/Wyo Hwy 240.-110.064741.684719511981Semi-barren desert slopes, shale ridgetops and slopes, some vegetated sand dunes. Phenology: flowering & fruiting.RMRM688323 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4728C. H. Refsdal Larry Refsdal199571182U.S.A.WyomingLincolnBasins and Mountains of Southwest Wyoming: ca 4.5 air mi SW of Opal; 4.7 mi S on Wagon Wheel Road off of U.S. Hwy 30.-110.374741.714420362048Gray green clay soils, west aspect, ridgetop and semi-barren sagebrush slopes. Phenology: flowering & fruiting.RMRM688324 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck5292C. H. Refsdal1995713194U.S.A.WyomingUintaBasins and Mountains of Southwest Wyoming: lower east flank of Hickey Mountain, ca 3 air mi NNW of Lonetree.-110.1941.091423172384Rolling semi-barren badlands with clay soils, scattered junipers. Phenology: flowering & fruiting.RMRM981929 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck4713Bonnie Heidel2018629180U.S.A.WyomingFremontGreat Divide Basin Area: Whitehorse Creek Wilderness Study Area: ca 2.5 air mi SW of Oregon Butte summit, ca 14 air mi SW of South Pass City.-108.875542.28132408Barren finger fidge, platy silt, west aspect; with Chaenactis douglasii, Elymus elymoides. Phenology: flowering.RMRM1000144 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck15Margaret R. Hackl Shannen M. Cashman and Emma E. Freeland2019625176U.S.A.WyomingFremontFoothills of Wind River Range: Red Canyon, located 2 air mi S of Weiser Knoll and 15.5 air mi SE of Lander.-108.62027842.62751960Gravelly ridge; soil sandy loam; slope 25 deg, aspect S, SW; with Penstemon laricifolius ssp. laricifolius, P. humilis ssp. humilis, Balsamorhiza incana. Seeds of Success WY050-214 Phenology: flowering.RMRM627904 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. Keck7755C. H. Refsdal199591244U.S.A.WyomingLincolnBasins and Mountains of Southwest Wyoming: ca 7.3 air mi SW of Kemmerer, 4.6 mi S on County Road 328, then 1.5 mi SW on two track.-110.701141.728121462158Bright alkaline semi-barren gentle slopes, Gutierrezia. Phenology: flowering & fruiting.RMTRM28474 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. KeckParatype for <i>Penstemon</i> <i>paysoniorum</i> D. D. Keck. Leafl. W. Bot. 5: 57. 1947.4585Aven Nelson189867158U.S.A.WyomingUintaLeroy.Abundant. Phenology: buds. Type Specimen.RMTRM89978 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. KeckParatype for <i>Penstemon</i> <i>paysoniorum</i> D. D. Keck. Leafl. Western Bot. 5: 57. 1947.2572Edwin B. Payson Lois B. Payson192276187U.S.A.WyomingSubletteBetween Eden and Big Piney.Dry slopes. "P. loisae Payson was not published" C. L. Porter '47. Phenology: flowering & fruiting. Type Specimen.RMTRM97994 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. KeckHolotype for <i>Penstemon</i> <i>paysoniorum</i> D. D. Keck. Leafl. W. Bot. 5: 57. 1947.3221Edwin B. Payson George M. Armstrong1923619170U.S.A.WyomingLincolnBetween Opal and Kemmerer.Dry hillsides. Phenology: flowering. Type Specimen.RMTRM184839 Penstemon paysoniorumphysical specimenPlantaginaceaePenstemonpaysoniorumD. D. KeckParatype for <i>Penstemon</i> <i>paysoniorum</i> D. D. Keck. Leafl. W. Bot. 5: 57. 1947.2799Reed C. Rollins193867158U.S.A.WyomingUinta10 mi N of Lonetree, Cottonwood creek.2134Sandy bottom of creek. Stems several from the base. Phenology: flowering. Type Specimen.36003,1,0true