: 1.21 $2024-03-29T02:18:47-7:0018.206.160.129searchRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5557Timothy W. Chumley199685218U.S.A.ColoradoDouglasEast-central Colorado: Mosquito Range to Plains: Rampart Range: off Forest Road 507 ca 0.2 rd mi E of intersection with Forest Road 300 or Rampart Range Road, ca 3 air mi SE of Shamballah-Ashramah; ca 8.4 air mi NE of Deckers.-105.082639.294523902576On granitic-gravelly slopes with rock outcrops in ponderosa pine-Douglas fir forest. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5753Timothy W. Chumley1996810223U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Morrison Creek: along the creek and slopes to S rising to Forest Road 550, ca 3 air mi SW of town of Buffalo Creek.-105.306239.352421822439In a grassy clearing in moderately burned ponderosa pine forest. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5792Timothy W. Chumley1996810223U.S.A.ColoradoTellerEast-central Colorado: Mosquito Range to Plains: Rampart Range: off Forest Road 360 or Cedar Mountain Road ca 0.7 air mi E of U.S.FS Big Turkey Campground, ca 3 air mi SW of Westcreek.-105.211839.121525362585Dry, granitic-gravelly soils with occasional rock outcrops in ponderosa pine-Douglas fir forest. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5932Timothy W. Chumley1996811224U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Tarryall Mountains: Platte Springs: off Forest Road 294 at intersection with Forest Road 210 to bluffs above the South Platte River, ca 5.2 air mi N of the town of Lake George.-105.3639.07825302756In ponderosa pine grassland with occasional aspen groves. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6000Timothy W. Chumley1996814227U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Thirtynine Mile Volcanic Range: along an unnamed tributary of Threemile Creek and surrounding uplands off Forest Road 108 ca 1.5 rd mi E of intersection with Colo Hwy 9, ca 9.2 air mi NW of Guffey.-105.652338.833728533073In Douglas fir forest on north-facing slope with gravelly volcanic soils. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6217Timothy W. Chumley1996818231U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: South Park: Trout Creek Pass: Antero State Wildlife Area: on slopes and ridges N of pass and W of old Colorado Midland railroad grade, ca 1 air mi SW of Antero Junction.-105.967538.920128233024In mixed ponderosa pine-Douglas fir forest. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6447Timothy W. Chumley1996824237U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Mosquito Range: Breakneck Pass: on ridgetop off Forest Road 175 and 426, ca 6.8 air mi SW of Fairplay.-106.079739.151732073356In an open, gravelly area on ridgetop. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7044Timothy W. Chumley Irene Thien1997712193U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Tarryall Mountains: off Forest Road 148 ca 2 air mi S of Observatory Rock; ca 16 air mi E of Fairplay.-105.706339.2396428532948In grassy, open Engelmann spruce stand. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2419Peter J. Ebertowski2002731212U.S.A.WyomingWestonThunder Basin National Grassland and Vicinity: West Plum Creek on Plum Creek Road, ca 6.5 air mi NW of Newcastle; ca 21 air mi SE of Upton.-104.28943.935913531365Grassy creek floodplain with willow and cottonwood. Phenology: flowering.RMRM912937 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton41485Erwin F. Evert200589221U.S.A.WyomingLincolnSalt River Range: Bridger-Teton National Forest: northeast ridge of Stewart Peak, ca 10 mi SSE of Alpine.28042987Sparsely vegetated limestone ridge-top with Valeriana acutiloba var. pubicarpa, Haplopappus suffruticosus, Castilleja applegatei var. viscida, Cymopterus longipes, and scattered Picea engelmannii, Abies lasiocarpa, and Pinus albicaulis. Phenology: flowering & fruiting.RMRM795613 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton58889B. E. Nelson Jeanette Flaig200378189U.S.A.ColoradoRio GrandeEastern San Juan Mountains: along Forest Road 345, E of Hogback Mesa, above Aspen Creek, ca 15 air mi SW of Del Norte.-106.539337.542231553201Aspen forest. Phenology: flowering & fruiting.RMRM795612 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton59234B. E. Nelson2003713194U.S.A.ColoradoMineralEastern San Juan Mountains: along Fern Creek Trail to Little Ruby Lake, ca 2.5-3 air mi N of Baldy Mountain, ca 13-13.5 air mi SW of Creede.-107.119337.726928963201Open aspen/spruce forest. Phenology: flowering.RMRM795596 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton59324B. E. Nelson2003715196U.S.A.ColoradoConejosEastern San Juan Mountains: in The Canyon and adjacent areas on Forest Road 255 at the forest boundary, ca 12 air mi NW of Capulin; ca 15 air mi SSE of Monte Vista.-106.2637.385425452606Drier areas in the bottom. Phenology: flowering.RMRM795595 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton59428B. E. Nelson2003715196U.S.A.ColoradoConejosEastern San Juan Mountains: from the Duck Lake Trailhead NE along the road, ca 1-1.5 air mi W of McIntyre Peak, ca 20 air mi W of Antonito.-106.373537.119826952756Meadow. Phenology: flowering.RMRM795616 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1796Jeanette Flaig2003726207U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Rio Grande National Forest: U.S. Hwy 160 E to County Road 17 N to Forest Road 610; ca 5 air mi N of South Fork. South-106.669137.72562750Ponderosa pine forest with scattered Douglas fir, pinyon and juniper with Ribes understory. Phenology: flowering.RMRM795626 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton190Jeanette Flaig200373184U.S.A.ColoradoMineralEastern San Juan Mountains: Rio Grande National Forest: Colo Hwy 149; ca 13 air mi SW of Creede.-107.0631537.74573329633582Spruce forest with scattered aspen in open xeric heavily grazed grassland, pond, spruce forest with scattered aspen, rocky outcrop, subalpine bristle cone forest, creek, roadside; open xeric grassland. Phenology: flowering.RMRM795615 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2604Jeanette Flaig2003814226U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Rio Grande National Forest: U.S. Hwy 160 W from Del Norte to County Road 19.-106.591437.67782500Along highway. Phenology: flowering & fruiting.RMRM795614 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2652Jeanette Flaig2003814226U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Rio Grande National Forest: South Fork Guard Station, ca 1.5 air mi SW of South Fork.-106.660437.63852545Ponderosa pine, spruce and aspen forest and xeric meadow. Phenology: flowering & fruiting.RMRM795618 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton738aJeanette Flaig2003713194U.S.A.ColoradoMineralEastern San Juan Mountains: Rio Grande National Forest: Colo Hwy 149 to Forest Road 600 then 4 road mi; ca 6 air mi SE from Creede.-106.812337.793229803084Spruce and Douglas fir forest with scattered aspen. Phenology: flowering & fruiting.RMRM795625 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton759Jeanette Flaig2003713194U.S.A.ColoradoMineralEastern San Juan Mountains: Rio Grande National Forest: Colo Hwy 149 to Forest Road 600 then 4 road mi; ca 6 air mi SE from Creede.-106.812337.793229803084Rocky outcrops. Phenology: flowering.RMRM795617 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton963Jeanette Flaig2003715196U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Beaver Creek Road across from South Fork Guard Station, ca 2 air mi SW of South Fork.-106.659337.637725592753Conifer and aspen forest with open meadows. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62252B. E. Nelson2004810223U.S.A.ColoradoConejosEastern San Juan Mountains: along Apache Creek just N of New Mexico, ca 1 air mi S of Rio de los Pinos, ca 24 air mi SSW of Antonito.-106.40736.996629723125Moist slopes with patches of spruce/fir/aspen. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62342B. E. Nelson2004811224U.S.A.ColoradoArchuletaEastern San Juan Mountains: Tierra Amarilla Grant: along Archuleta Creek and Archuleta or Trail 124, ca 2 air mi W of Rio Chama, ca 28 air mi SE of Pagosa Springs.-106.591937.052128652987Along trail in spruce/corkback fir/aspen woods. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62452B. E. Nelson2004813226U.S.A.ColoradoArchuletaEastern San Juan Mountains: along the Little Navajo River at Trail 577 crossing and vicinity, ca 2 air mi NW of Navajo Peak, ca 17 air mi SE of Pagosa Springs.-106.769537.107327282759Slopes and meadows with snowberry. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62478B. E. Nelson2004813226U.S.A.ColoradoArchuletaEastern San Juan Mountains: along the Little Navajo River at Trail 577 crossing and vicinity, ca 2 air mi NW of Navajo Peak, ca 17 air mi SE of Pagosa Springs.-106.769537.107327282759River bank and adjacent flats and slopes with scattered spruce. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton63023B. E. Nelson2004822235U.S.A.ColoradoConejosEastern San Juan Mountains: just N of New Mexico at the junction of Forest roads 103 and 129, ca 5.5 air mi SSW of Fox Creek; ca 14.5 air mi SW of Antonito.-106.231636.994828812911Open mixed conifer/aspen forest at edge of Chrysothamnus/Gutierrezia meadow. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4779Jeanette Flaig2004624176U.S.A.ColoradoConejosEastern San Juan Mountains: Rio Grande National Forest: Fox Creek Road, just S of Hicks Canyon, 17 air mi SW of Centro.-106.228637.07422629Roadside. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5224Jeanette Flaig200475187U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Limekiln Peak, Old Spanish Trail, Limekiln, SW of Sevenmile Plaza, 7.5 air mi SE of Del Norte.-106.322537.60332541Rock outcrops in pinyon/juniper woodland with scattered Douglas fir on west-facing slope. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5447Jeanette Flaig200476188U.S.A.ColoradoRio GrandeEastern San Juan Mountains: Rock Creek Park, Bishop Rock, Forest Road 28, 16 air mi SSE of Del Norte.-106.283337.4922620Open pinyon, juniper, ponderosa pine, and Douglas fir woodland in rock garden. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6710Jeanette Flaig2004726208U.S.A.ColoradoMineralEastern San Juan Mountains: Rio Grande National Forest: Deep Creek Trail, Trailhead 806 from Forest Road 528, ca 12 air mi S of Creede.-106.937337.765229482950Spruce forest with scattered Douglas fir in canyon with east and west-facing slopes. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6823Jeanette Flaig2004729211U.S.A.ColoradoSaguacheEastern San Juan Mountains: Rio Grande National Forest: South Fork Carnero Creek, Forest Road 676, Trailhead 796, ca 21 air mi ESE of Creede.-106.554137.96233275Aspen and spruce forest on east-facing slope. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6844Jeanette Flaig2004729211U.S.A.ColoradoSaguacheEastern San Juan Mountains: Rio Grande National Forest: Forest Road 675, South Fork Carnero Creek, ca 15 air mi WNW of La Garita.-106.482937.94052920West-facing slope and roadside. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7253Jeanette Flaig200485218U.S.A.ColoradoSaguacheEastern San Juan Mountains: Rio Grande National Forest: La Garita Wilderness: Trailhead 783-912, Forest Road 744, Saguache and Halfmoon creeks, ca 16 air mi NE of Creede.-106.750137.967830813132Open spruce forest in canyon by river on southeast-facing slope. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7337Jeanette Flaig200485218U.S.A.ColoradoSaguacheEastern San Juan Mountains: Rio Grande National Forest: La Garita Wilderness: Trailhead 783-912, Forest Road 744, Saguache and Halfmoon creeks, ca 16 air mi NE of Creede.-106.765637.960131323258Spruce forest on west-facing slope near mouth of canyon. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7347Jeanette Flaig200485218U.S.A.ColoradoSaguacheEastern San Juan Mountains: Rio Grande National Forest: Forest Road 787, Salt House, Forest Boundary, W of Saguache Park, ca 23 air mi NE of Creede.-106.704938.08013268Aspen forest. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7527Jeanette Flaig200488221U.S.A.ColoradoHinsdaleEastern San Juan Mountains: San Juan National Forest: Weminuche Wilderness: Pine Creek Trail, Los Pinos River.-107.450737.47424582517Mixed conifer forest with seeps. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7677Jeanette Flaig2004811224U.S.A.ColoradoHinsdaleEastern San Juan Mountains: Brown Lakes State Wildlife Area: Colo Hwy 149, Forest Road 515, ca 16 air mi W of Creede.-107.180637.83092993Open meadow by lake shore with spruce forest on west-facing slope. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7839Jeanette Flaig2004811224U.S.A.ColoradoHinsdaleEastern San Juan Mountains: Rio Grande National Forest: North Clear Creek, Colo Hwy 149, Forest Road 513.1B just E of Continental Reservoir, ca 17 air mi WNW of Creede.-107.189937.88983108Willow thicket by creek and south-facing slope. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton79319Ronald L. Hartman200478190U.S.A.ColoradoConejosEastern San Juan Mountains: Rio Grande National Forest: 3-3.5 air mi S of Fox Creek, mountain immediately to E of Bighorn Creek and Forest Road 28.-106.186437.019725812602Mixed conifer forest. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton79366Ronald L. Hartman200478190U.S.A.ColoradoConejosEastern San Juan Mountains: Rio Grande National Forest: Forest Road 103 on northeast rim of Toltec Creek Canyon, 6.5 air mi SW of Fox Creek.-106.293137.012730483109Rim of canyon and upper slopes in spruce and southwest white pine. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton79546Ronald L. Hartman2004713195U.S.A.ColoradoConejosEastern San Juan Mountains: Rio Grande National Forest: 1-1.2 air mi ENE of spillway on Terrace Reservoir; ridge from Forest Service road to top of first main rock outcrop on ridge leading to Chiquito Peak.-106.269537.369126322887Rocky slopes and outcrops and roadside; rocky slopes and outcrops. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton79690Ronald L. Hartman2004715197U.S.A.ColoradoArchuletaEastern San Juan Mountains: Rio Grande National Forest: campground on Rio Chama W ca 1 air mi along Archuleta Creek.-106.553637.03226762804Spruce/fir and aspen forest on slopes, alder and willow along streams; along the creek. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3161Erin Foley2003721202U.S.A.ColoradoGrandArapaho National Forest: Front Range: Monarch Lake, ca 10.5 air mi E of Granby; ca 12 air mi NE of Fraser.-105.741540.1082560Lakeside, spruce/lodgepole pine/fir forest, and streamside. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3755Erin Foley B. E. Nelson2003728209U.S.A.ColoradoClear CreekArapaho National Forest: Front Range: ca 0.5 mi NW of Empire on secondary Forest Road 261; ca 8.5 air mi SW of Winter Park.-105.688839.77092865Mixed coniferous forest and roadside. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3780Erin Foley B. E. Nelson2003728209U.S.A.ColoradoClear CreekArapaho National Forest: Front Range: ca 0.5 mi NW of Empire on secondary Forest Road 261; ca 8.5 air mi SW of Winter Park.-105.688839.77092865Mixed coniferous forest and roadside. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4469Erin Foley200387219U.S.A.ColoradoClear CreekArapaho National Forest: Front Range: ca 1 mi SW of Devils Canyon, ca 7.5 air mi SE of Empire; ca 5 air mi SW of Idaho Springs.-105.59639.68773170Wet meadows below Artemisia hills and adjacent spruce/lodgepole pine forest. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4575Erin Foley2003810222U.S.A.ColoradoClear CreekArapaho National Forest: Front Range, ca 4 air mi WNW of Central City; ca 6.5 air mi NE of Empire, between Sheridan Hill and Mount Pisgah.-105.588839.812228042926Dry, regenerating, Artemisia slope with scattered mixed conifers. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5015Erin Foley2003814226U.S.A.ColoradoGrandArapaho National Forest: Williams Fork Mountains: South Fork Road, ca 1 mi WSW of Old Baldy, ca 21.5 air mi SSE of Hot Sulphur Springs.-106.035339.752528042926Along steep mountain stream and roadside. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10331Erin Foley Ronald L. Hartman2004719201U.S.A.ColoradoGrandArapaho National Forest administered by Routt National Forest: Rabbit Ears Range: Black Mountain, ca 7.5 air mi NNW of Parshall and ca 11 air mi NE of Kremmling.-106.210940.14652804Open clear cut. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton11343Erin Foley2004810223U.S.A.ColoradoGrandRabbit Ears Range: Lindsey Creek to Grannys Nightcap, ca 18.5 air mi NNW of Kremmling and ca 23 air mi SE of Steamboat Springs.-106.443440.325226582871Along creek. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton11739Erin Foley2004816229U.S.A.ColoradoClear CreekArapaho National Forest: Front Range: along Colo Hwy 103, ca 2.5 air mi WSW of Idaho Springs and ca 7 air mi ENE of Georgetown.-105.562539.72372408Along road. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8644Erin Foley2004628180U.S.A.ColoradoGrandArapaho National Recreation Area: Lake Granby just N of Stillwater Campground, ca 7 air mi NE of Granby and ca 6 air mi SW of Grand Lake.-105.882640.18412524Abundant along receding lake edge. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8708Erin Foley2004628180U.S.A.ColoradoGrandRabbit Ears Range: tributary of Willow Creek, ca 9.5 air mi NW of Granby and ca 9.5 air mi SE of Willow Creek Pass.-106.034840.200125602634Moist disturbed area. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8885Erin Foley200471183U.S.A.ColoradoGrandMiddle Park: Kinney Creek, ca 3.5 air mi NE of Hot Sulphur Springs and ca 8 air mi WNW of Granby.-106.087240.117525602789Drainage through lodgepole pine and sagebrush; area heavily grazed by cattle. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9262Erin Foley200475187U.S.A.ColoradoGrandArapaho National Forest: Middle Park: just S of U.S. Hwy 40, ca 4 air mi WNW of Granby and ca 5.5 air mi NE of Hot Sulphur Springs.-105.993440.103123782463Sagebrush slope. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9343Erin Foley200476188U.S.A.ColoradoGrandGore Range: Dice Hill, ca 29 air mi NW of Silverthorne and 9 air mi SSW of Kremmling.-106.443739.945228652926Sagebrush slope with scattered aspen. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1357Amy J. Roderick1997628179U.S.A.WyomingCarbonUpper North Platte and Laramie River Drainages: Chokecherry Knob E of Wyo Hwy 71, ca 8.5 air mi S of Rawlins.-107.233241.678523472439Sagebrush draw leading into a dense thicket of chokecherry, serviceberry, willow, and other shrubs. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9669Erin Foley2004710192U.S.A.ColoradoGrandMiddle Park: Round Creek, ca 11.5 air mi NE of Kremmling and ca 13.8 air mi NW of Hot Sulphur Springs.-106.280140.199526462780Disturbed sagebrush meadow. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9825Erin Foley2004712194U.S.A.ColoradoGrandGore Range: Inspiration Point, ca 6.5 air mi SW of Kremmling and ca 5.5 air mi NE of Radium.-106.477439.996822432408Disturbed area through mixed coniferous woodland and sagebrush openings. Phenology: flowering.RMRM960954 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton63478Ronald L. Hartman1998816228U.S.A.New MexicoColfaxNM Hwy 72, 11 road mi E of I-25 (milepost 11).-104.278336.92192500Roadside through wooded area. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2009Emily A. Holt2000710192U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: Little Brown and Brown Creek area, off of Forst Service trails 1429 and 1427 or the Wagon Loop Trail, ca 9 air mi SW of Nathrop.-106.160638.671726822987Mixed forest (Pseudotsuga menziesii, Pinus edulis, P. ponderosa, P. contorta). Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3941Emily A. Holt2000813226U.S.A.ColoradoEagleCentral Colorado: Sawatch Range, West Slope Continental Divide: along Jeep Forest Service Road 759, ca 14 air mi S of Minturn.-106.468739.411828653231Mixed forest of spruce-fir with Pinus contorta. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4004Emily A. Holt2000814227U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: La Plata Gulch Trail, at treeline and below, ca 8 air mi SE of Independence Pass.-106.486639.049733533841Spruce-fir forest. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4051Emily A. Holt2000816229U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: Little Willis Gulch to Hope Pass, on the Colorado Trail, Trail 1776, ca 2 air mi W of Vicksburg.-106.393939.006530483414Pinus contorta and Populus tremuloides forest, south aspect. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4233Emily A. Holt Benjamin Madsen2000817230U.S.A.ColoradoLakeCentral Colorado: Sawatch Range, East Slope Continental Divide: along old paved road off Colo Hwy 91 by Arkansas River, ca 10 air mi NE of Leadville.-106.209439.35431703292Willow along roadside. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8140Emily A. Holt Sarah Bergemann2001824236U.S.A.ColoradoChaffeeCentral Colorado: Sawatch Range, East Slope Continental Divide: off south side of Forest Road 386 on Frenchmans Creek, at fork in road (at Forest Road 386 and Forest Road 387), ca 9 air mi NW of Buena Vista.-106.210938.934427432835Lodgepole forest. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8175Emily A. Holt Sarah Bergemann2001824236U.S.A.ColoradoLakeCentral Colorado: Sawatch Range, East Slope Continental Divide: at Twin Peaks Campground, ca 2.5 air mi SW of Twin Lakes.-106.414939.0642926Lodgepole forest with interspersed aspen. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8189Emily A. Holt Sarah Bergemann2001824236U.S.A.ColoradoLakeCentral Colorado: Sawatch Range, East Slope Continental Divide: on Leadville National Fish Hatchery, along trail W from picnic area off Colo Hwy 300, ca 7 air mi SW of Leadville.-106.395139.223729263048Lodgepole near small ponds and streams with Betula and Salix. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17368B. E. Nelson Steven Nelson1989731212U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: ca 2 air mi SSE of Lynx Pass on Morrison Creek Road, ca 13 air mi ESE of Yampa; ca 29 air mi SSE of Steamboat Springs.-106.667440.083326822804Edge of mixed conifer-aspen forest-silver sage-meadow.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17370B. E. Nelson Steven Nelson1989731212U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: ca 2 air mi SSE of Lynx Pass on Morrison Creek Road, ca 13 air mi ESE of Yampa; ca 29 air mi SSE of Steamboat Springs.-106.667440.083326822804Edge of mixed conifer-aspen forest-silver sage-meadow.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17390B. E. Nelson Steven Nelson1989731212U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: ca 2 air mi SSE of Lynx Pass on Morrison Creek Road, ca 13 air mi ESE of Yampa; ca 29 air mi SSE of Steamboat Springs.-106.667440.083326822804Among scattered lodgepole pine at upper edge of seep.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17542B. E. Nelson Steven Nelson198981213U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: N of head of Newcomer Creek, ca 7 air mi SE of Yampa, ca 27 air mi S of Steamboat Springs.-106.801440.0982743Aspen grove.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17544B. E. Nelson Steven Nelson198981213U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: N of head of Newcomer Creek, ca 7 air mi SE of Yampa, ca 27 air mi S of Steamboat Springs.-106.801440.0982743Aspen grove.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17819B. E. Nelson Michelle Nelson198987219U.S.A.ColoradoRoutt[location and coordinates withheld]24392560Aspen-sagebrush slope.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18108B. E. Nelson Michelle Nelson1989810222U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: Above Volcano Siding ca 2 air mi SW of Long Park, ca 13.5 air mi SE of Yampa, ca 33 air mi S of Steamboat Springs.-106.724840.009626212682Meadow.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18180B. E. Nelson Michelle Nelson1989811223U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: Along Morrison Creek just below Muddy Creek, ca 8.5 air mi ENE of Yampa, ca 21 air mi S of Steamboat Springs.-106.763140.18642469Slope.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18190B. E. Nelson Michelle Nelson1989813225U.S.A.ColoradoGrandSierra Madre\Park Range: Park Range: along Farnham Creek just below Gore Creek, ca 3 air mi NW of Gore Pass, ca 12 air mi WNW of Kremmling.-106.6140.0982804Meadow along stream.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18230B. E. Nelson Michelle Nelson1989813225U.S.A.ColoradoGrandSierra Madre\Park Range: Park Range: along Farnham Creek just below Gore Creek, ca 3 air mi NW of Gore Pass, ca 12 air mi WNW of Kremmling.-106.6140.0982804Lodgepole pine forest in southerly facing slope.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18250B. E. Nelson Michelle Nelson1989813225U.S.A.ColoradoGrandSierra Madre\Park Range: Park Range: above North Fork Pass Creek on Red Dirt Road, ca 9 air mi NW of Kremmling.-106.533540.142226212652Cut over aspen forest.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18268B. E. Nelson Michelle Nelson1989813225U.S.A.ColoradoGrandSierra Madre\Park Range: Park Range: above North Fork Pass Creek on Red Dirt Road, ca 9 air mi NW of Kremmling.-106.533540.142226212652Meadow on sagebrush slope.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18308B. E. Nelson Michelle Nelson1989813225U.S.A.ColoradoGrandSierra Madre\Park Range: Park Range: Red Dirt Reservoir, ca 13 air mi NW of Kremmling.-106.564940.18032759Open slope along reservoir.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5085Neil Snow198984216U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: along Forest Road 129 at junction of road leading around northwest part of Steamboat Lake.-106.967840.80892439Meadows surrounding small pond.RMRM569680 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1126Nancy Kastning1988813226U.S.A.WyomingCarbonSierra Madre/Park Range: Sierra Madre: Singer Peak.-107.184441.22621Dry meadow in aspen forest. Phenology: flowering & fruiting.RMRM569681 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton506Nancy Kastning Lee Huston and Joel Kastning1988712194U.S.A.WyomingCarbonSierra Madre/Park Range: Sierra Madre: ca 3 air mi ENE of Battle Mountain, E of Battle Creek.-107.221341.0552179Sagebrush-grassland slopes E of creek. Phenology: flowering.RMRM569682 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton521Nancy Kastning Lee Huston and Joel Kastning1988712194U.S.A.WyomingCarbonSierra Madre/Park Range: Sierra Madre: ca 3 air mi ENE of Battle Mountain, E of Battle Creek.-107.221341.0552179Sagebrush-grassland slopes on east side of creek. Phenology: flowering.RMRM569683 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton569Nancy Kastning Lee Huston1988713195U.S.A.WyomingCarbonSierra Madre: ca 4.5 mi SE of Quartzite Peak.-107.126341.09852454Aspen forest intersperwed with open meadows. Phenology: flowering.RMRM569684 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton599Nancy Kastning Lee Huston1988713195U.S.A.WyomingCarbonSierra Madre: ca 4.5 mi SE of Quartzite Peak.-107.126341.09852454Aspen forest interspersed with open meadow. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4580Kevin J. Taylor1997815227U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 4 air mi NE of Pitkin.-106.478738.64830793155Lodgepole pine, Engelmann spruce forest; common juniper and Vaccinium.RM773025 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9102Kevin J. Taylor1998724205U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3 air mi S of Pitkin.-106.506838.56352957Aspen forest. Phenology: flowering & fruiting.RM773024 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9132aKevin J. Taylor1998724205U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3 air mi S of Pitkin.-106.506838.563528962957Open meadow along drainage; sagebrush, Salix, and Pentaphylloides. Phenology: flowering & fruiting.RM773023 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9174Kevin J. Taylor1998724205U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 3 air mi SSE of Pitkin.-106.506838.563529873018Aspen forest along drainage. Phenology: flowering & fruiting.RM773022 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9196Kevin J. Taylor1998724205U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 9.5 air mi ENE of Parlin.-106.556838.50692698Sagebrush meadow. Phenology: flowering & fruiting.RM773021 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9271Kevin J. Taylor1998724205U.S.A.ColoradoGunnisonNorthern Gunnison Basin: ca 9.5 air mi ENE of Parlin.-106.556838.521526982804Sagebrush hills and along top of box canyon. Phenology: flowering & fruiting.RMRM940669 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65659B. E. Nelson2005727208U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Rancho del Rio Grande Grant: along Rio Chiquito on Forest Road 437, ca 1.5 air mi W of Tombe; ca 4 air mi ESE of Ranchos de Taos.-105.539936.329722562286Canyon bottom. Phenology: flowering & fruiting.RMRM940668 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65775B. E. Nelson2005728209U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Rancho del Rio Grande Grant: along Rio Chiquito on Forest Road 437, ca 1 air mi S of Pinoreal Peak, ca 6.5 air mi SE of Ranchos de Taos.-105.506336.304624392560Open ponderosa pine forest. Phenology: flowering & fruiting.RMRM940667 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65878B. E. Nelson2005731212U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Rancho del Rio Grande Grant: between Rito de la Olla and Forest Road 438, ca 3/4 mi SW of Puertocito, ca 12.5 air mi SE of Ranchos de Taos.-105.413336.277528962987Dry meadow on steep slope. Phenology: flowering & fruiting.RMRM940666 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton66050B. E. Nelson200582214U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: below south end of Mogote Ridge between Laguna de las Ranas and Forest Road 137, ca 8.5 air mi SE of Canjilon; ca 25 air mi SE of Tierra Amarilla.-106.335136.387726702701Open meadow surrounded by Quercus/Ribes thickets. Phenology: flowering & fruiting.RMRM940665 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton66126B. E. Nelson200582214U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: vicinity of Upper Canjilon Lakes at the end of Forest Road 129, ca 8.5 air mi NE of Canjilon; ca 15.5 air mi SE of Tierra Amarilla.-106.326336.565330793103Dry forb meadow and rocky slope. Phenology: flowering & fruiting.RMRM940664 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton66235B. E. Nelson200583215U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: along Forest Road 129, ca 0.5 air mi S of Lower Canjilon Lakes, ca 7 air mi NE of Canjilon; ca 16 air mi SE of Tierra Amarilla.-106.344136.544429392951Meadows on rolling hills with occasional small patches of oak, willow, or aspen. Phenology: flowering & fruiting.RMRM940663 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton66336B. E. Nelson200585217U.S.A.New MexicoMoraCarson National Forest and Vicinity: Sangre de Cristo Range: Mora Grant: along Forest Road 76 above the head of Marias Canyon, ca 5.5 air mi SW of Black Lake; ca 18.5 air mi N of Mora.-105.326936.246132253262Meadow. Phenology: flowering & fruiting.RMRM940662 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton66481B. E. Nelson200588220U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: vicinity of Roadside Number 1 Tank and Forest Road Spur 87T, ca 5 air mi SW of San Miguel; ca 21.5 air mi NW of Tres Piedras.-106.203536.899628592908Aspen forest with mixed conifer understory. Phenology: flowering & fruiting.RMRM940680 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2098Jill E. Larson200577188U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Rio Nutritas on Forest Road 93, ca 16 air mi NW of Tres Piedras.-106.236636.815327132774River riparian area and mixed conifer/aspen forest. Phenology: flowering & fruiting.RMRM940679 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2213Jill E. Larson2005710191U.S.A.New MexicoTaosCarson National Forest and Vicinity: Forest Road 703, Amole Canyon and old sheep driveway, ca 4 air mi NE of Penasco.-105.604736.190925452865Mixed conifer forest and springs/drainages; old roadbed/sheep driveway. Phenology: flowering.RMRM940632 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2385Jill E. Larson2005713194U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Canjilon Mountain and Canjilon Lakes, ca 7 air mi NE of Canjilon.-106.335336.555830483323Moist areas at base of mountain, east aspect slope and summit with spruce forest and montane meadows. Phenology: flowering & fruiting.RMRM940631 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2475Jill E. Larson2005716197U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Pecos Wilderness: Trampas Lake Trail 31 from Forest Road 207, ca 5 air mi S of El Valle.-105.672136.044527893201Mixed conifer forest, streamside and lakeside. Phenology: flowering.RMRM940630 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2618Jill E. Larson2005719200U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: Shuree Ponds and Rock Wall, from Forest Road 1950, ca 11 air mi NE of Red River.-105.194336.776528582949West aspect slope with open meadows and mixed conifer/aspen forest, small burned area, rocky outcrop. Phenology: flowering.RMRM940629 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2831Jill E. Larson2005722203U.S.A.New MexicoTaosCarson National Forest and Vicinity: Devisidero Loop Trail from Taos Canyon to Devisidero Peak, ca 1 air mi E of Canyon.-105.546136.3823172530Pinyon/juniper woodland and south aspect slopes. Phenology: flowering & fruiting.RMRM940628 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2864Jill E. Larson2005722203U.S.A.New MexicoTaosCarson National Forest and Vicinity: Devisidero Loop Trail from Taos Canyon to Devisidero Peak, ca 1 air mi E of Canyon.-105.546136.3823172530Pinyon/juniper woodland and north aspect slopes. Phenology: flowering.RMRM940627 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2919Jill E. Larson Robert Peters2005723204U.S.A.New MexicoTaos[location and coordinates withheld]33903951Subalpine lakes, stream riparian and surrounding spruce forest. Phenology: flowering & fruiting.RMRM940626 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3083Jill E. Larson2005724205U.S.A.New MexicoTaos[location and coordinates withheld]2637Canyon slopes, side drainage with white fir and Douglas fir; creek riparian. Phenology: flowering & fruiting.RMRM940625 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3159Jill E. Larson2005726207U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Cruces Basin Wilderness: Osha Canyon trailhead from Forest Road 572.-106.284836.925428352996Sunny slopes and uplands; mixed conifer forest with aspen. Phenology: flowering & fruiting.RMRM940624 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3323Jill E. Larson2005729210U.S.A.New MexicoTaosCarson National Forest and Vicinity: Lama Canyon, Forest Road 132A, ca 2 air mi E of Lama and Forest Road 9.-105.589536.64662606Canyon bottom with Rubus in burned area. Phenology: flowering & fruiting.RMRM947327 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3343Jill E. Larson Robert Peters2005730211U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: ridgeline above corral from Forest Road 1950 toward Little Costilla Peak.-105.23336.784330483719Spruce and bristlecone pine forest with meadow openings; rocky ridgeline. Phenology: flowering & fruiting.RMRM940678 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3633Jill E. Larson200582214U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Hopewell Lake, camping area, S of U.S. Hwy 64, ca 17 air mi E of Tierra Amarilla.-106.23436.70362987Grassy uplands and camping area near lake. Phenology: flowering & fruiting.RMRM940677 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3813Jill E. Larson200588220U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: from Forest Road 76, Duran Canyon Campground to Valle de los Romeros via Trail 13, ca 3 air mi E of Tres Ritos.-105.477536.134126522957Small stream riparian area and surrounding spruce forest. Phenology: flowering & fruiting.RMRM940676 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3946Jill E. Larson200589221U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: north slope of San Antonio Mountain via Forest Road 118, ca 15 air mi N of Tres Piedras.-106.011636.884525833109Upland slopes with Arizona fescue, patches of mixed conifer and aspen forest. Phenology: flowering & fruiting.RMRM940675 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4158Jill E. Larson Robert Peters2005814226U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Manzanitos Canyon Trail 58 from NM Hwy 150 W to Lobo Peak summit, ca 6 air mi NE of Arroyo Seco.-105.507136.574625763693Mixed conifer forest and stream riparian to spruce forest. Phenology: flowering & fruiting.RMRM940674 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4261Jill E. Larson Robert Peters2005814226U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: ridgeline E of Lobo Peak towards Gold Hill via Lobo Peak Trail 57, ca 6 air mi NNE of Arroyo Seco.-105.541836.609733993658Rocky ridgeline with bristlecone pine and Engelmann spruce interspersed with montane meadows. Phenology: flowering & fruiting.RMRM940673 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4304Jill E. Larson Robert Peters2005814226U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Gavilan Canyon Trail 60.-105.541836.609728043399Canyon bottom with Poa pratensis, stream riparian and mixed conifer slopes. Phenology: flowering & fruiting.RMRM940672 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4337Jill E. Larson2005815227U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Placer Creek at waterfall via Forest Road 1893 N of U.S. Hwy 64, ca 18 air mi NW of Tres Piedras.-106.245536.718530033033Upland grassland and rock outcrop. Phenology: flowering & fruiting.RMRM940671 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4371Jill E. Larson2005815227U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: end of Forest Road 1893 north side of U.S. Hwy 64, N of Buckhorn Canyon, ca 14 air mi NW of Tres Piedras.-106.209436.73592957Logged mixed conifer forest. Phenology: flowering & fruiting.RMRM940670 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4429Jill E. Larson2005818230U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 103 near state line, 1/4 air mi N of Sublette, 8 air mi W of Los Pinos.-106.231336.992828352896Patchy mixed conifer forest and meadows with Chrysothamnus and Stipa. Phenology: flowering & fruiting.RMRM940661 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton81421Ronald L. Hartman2005725206U.S.A.New MexicoTaosCarson National Forest and Vicinity: NM Hwy 515 from NM Hwy 522 to Red River State Fish Hatchery, follow powerline ca 0.5 air mi down creek until intercept with Hatchery Road on back up the road.-105.639136.669821952286Pinyon/juniper. Phenology: flowering & fruiting.RMRM940660 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton81562Ronald L. Hartman2005728209U.S.A.New MexicoTaosCarson National Forest and Vicinity: north-northeast slope and summit of Cerro Montoso.-105.754636.702823172638Pinyon/juniper with some ponderosa pine. Phenology: flowering & fruiting.RMRM940659 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton81624Ronald L. Hartman2005729210U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Grant: north slope of Ute Mountain (Coyote Mountain by Native Americans previously).-105.677936.951327713077Phenology: flowering & fruiting.RMRM950104 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton69075B. E. Nelson200683215U.S.A.New MexicoMoraCarson National Forest and Vicinity: Sangre de Cristo Range: from Forest Road 76 to East Fork Luna Creek, 3/4-1 1/4 air mi SE of Cuchillo de Fernando, ca 6 air mi SW of Black Lake; ca 17 air mi SE of Taos.-105.341236.253930183292Old spruce clearcut on steep southerly-facing slope dominated by grasses. Phenology: flowering & fruiting.RMRM950103 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton69173B. E. Nelson200683215U.S.A.New MexicoMoraCarson National Forest and Vicinity: Sangre de Cristo Range: along Forest Road 76 at the head of a tributary of West Fork Luna Creek, ca 2 air mi NE of Cerro Vista, ca 7.5 air mi WSW of Black Lake.-105.376636.252532253256Steep clearcut slopes and knoll. Phenology: flowering & fruiting.RMRM950102 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton69206B. E. Nelson200686218U.S.A.New MexicoTaosCarson National Forest and Vicinity: Penabetoso Peaks and vicinity on the north peak and to the W, ca 16.5 air mi N of Tres Piedras.-105.940136.88962509Low area with tall rabbitbrush and western wheatgrass. Phenology: flowering & fruiting.RMRM950101 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton69354B. E. Nelson200688220U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: trailhead at end of Forest Road 161 and La Sierra Ditch, ca 3.5 air mi E of Jicarita Peak, ca 24.5 air mi S of Taos.-105.500536.057731583182Small clearing adjacent to the road in Engelmann spruce/corkbark fir forest. Phenology: flowering & fruiting.RMRM950100 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton69418B. E. Nelson200688220U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: along Forest Road 161 above Alamitos Creek, ca 4 air mi E of Jicarita Peak, ca 25 air mi S of Taos.-105.491836.051931093140Roadside and roadcut through sandstone. Phenology: flowering & fruiting.RMRM950108 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10105Jill E. Larson2006811223U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Cimarron Range: Colin Neblett State Wildlife Area: Tolby Creek ca 1.5 air mi S of Cimarron Canyon and U.S. Hwy 64, ca 3 air mi ESE of Eagle Nest, ca 1.5 air mi E of east shore of Eagle Nest Lake.-105.224736.536625912667Along creek with Alnus tenuifolia, Rosa, Rudbeckia laciniata var. ampla, and Rubus. Phenology: flowering & fruiting.RMRM950107 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10726Jill E. Larson2006820232U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: ridgeline and vicinity above San Cristobal Canyon ca 1 air mi E of Flag Mountain, ca 6 air mi NE of San Cristobal; ca 5 air mi SE of Lama.-105.545936.633534453597Alpine tundra with recent cattle grazing evident. Phenology: flowering & fruiting.RMRM950106 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10743Jill E. Larson2006820232U.S.A.New MexicoTaosCarson National Forest and Vicinity: southern border of 1996 Hondo Fire N of San Cristobal Canyon, just NE of San Cristobal Canyon Trailhead, ca 3 air mi NE of San Cristobal; ca 2 air mi SE of Lama.-105.607436.618125602591Along edge of burned area of pinyon/juniper woodland and north-facing slope with Quercus gambelii and Bromus carinatus. Phenology: flowering & fruiting.RMRM950105 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10929Jill E. Larson2006822234U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Canyon de los Alamos accessed from NM Hwy 519 and Forest Road 222 near Salt Lick Spring, ca 2 air mi NE of La Madera; ca 2.5 air mi SE of Anacones.-106.020236.410220572134Along bottom and sides of dry wash with Quercus gambelii and Juniperus scopulorum. Phenology: flowering & fruiting.RMUSFS478334 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton15Hermann W. Krauch193381213U.S.A.New MexicoOteroLincoln National Forest: Cloudcroft.-105.742932.955392743Douglas fir/white fir community in deep black loam and limestone on a 15 degree north slope. Phenology: flowering & fruiting.RMRM950142 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6834Jill E. Larson Robert Peters2006618169U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Cruces Basin Wilderness Area: south aspect slopes above canyon of Cruces Creek and areas along north basin rim, ca 15 air mi ENE of Chama, ca 4 air mi S of Colorado.-106.297936.949928353094Slopes above creek and mesa top with dry meadows, aspen stands, and groupings of spruce-subalpine fir forest. Phenology: flowering & fruiting.RMRM950141 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7353Jill E. Larson James Lucero2006629180U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Pueblo de Taos Indian Reservation: Lucero Canyon from footbridge to Martinez Canyon; trail along Rio Lucero, ca 6 air mi E of Arroyo Seco and ca 5 air mi S of Twining.-105.464936.511225302835Mixed conifer forest with Abies concolor, Pseudotsuga menziesii, and Populus tremuloides; understory includes Shepherdia and Symphoricarpos. Phenology: flowering & fruiting.RMRM950120 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7556Jill E. Larson200672183U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: West Fork Angostura Trail 9A to Forest Road 89, ca 0.5 air mi SW of The Knob, ca 3 air mi S of Tres Ritos, and ca 3 air mi W of Angostura.-105.530236.099828653109Forested ridgeline with Paxistima, Solidago, and Sheperdia; conifers include Pseudotsuga menziesii and Picea engelmannii. Phenology: flowering & fruiting.RMRM950119 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7853Jill E. Larson200676187U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Forest Road 134 on Cabresto Creek, ca 1 air mi SSE of Cabresto Lake, ca 1.5 air mi W of turn off to Forest Road 597 and Bonito Canyon, ca 5 air mi NW of Red River.-105.490236.73272591Camping areas in spruce forest and small meadow just beyond creek riparian area. Phenology: flowering & fruiting.RMRM950118 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8025Jill E. Larson2006712193U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Goose Creek Trail 65, ca 3.5 air mi S of Red River, ca 2 air mi SE of Black Mountain.-105.409836.667727432896Mixed conifer forest with Abies concolor and Pseudotsuga menziesii along trail with sunny openings. Phenology: flowering & fruiting.RMRM950117 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8294Jill E. Larson2006714195U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Valle Vidal Unit: along Comanche Creek to Clayton Camp, ca 7 air mi ESE of Red River, ca 10 air mi N of Elizabethtown historic town site.-105.276236.780828202896Rock outcrops along stream. Phenology: flowering & fruiting.RMRM950116 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8500Jill E. Larson2006717198U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Canada Tio Grande, Forest Road 87EE, ca 3 air mi SW of Stewart Meadows and ca 20 air mi NW of Tres Piedras.-106.172436.836627432850Open dry meadows with scattered ponderosa pine and Chrysothamnus nauseosus, Festuca arizonica, and Gutierrezia sarothrae. Phenology: flowering & fruiting.RMRM950115 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8632Jill E. Larson2006717198U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 78A to Chino Lake, ca 4 air mi S of San Miguel on Rio Los Pinos and ca 2 air mi S of Chino dry lake.-106.12636.90072728Dry meadow with low rocky basalt outcrops and Artemisia frigida, Hymenoxys richardsonii, and Artemisia nova. Phenology: flowering & fruiting.RMRM950114 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9088Jill E. Larson Robert Peters2006723204U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Latir Peak Wilderness: Lake Fork Trail 82 in vicinity of junction with Bull Creek Trail, ca 1 air mi NE of Cabresto Lake and ca 7 air mi NW of Red River.-105.467936.768629573307Mixed conifer forest with Picea engelmannii, Abies arizonica, Pseudotsuga menziesii, and Abies concolor; along trail and stream. Phenology: flowering & fruiting.RMRM950113 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9251Jill E. Larson2006726207U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 80, just N of Rio Tusas, ca 3 air mi NE of Hopewell Lake and ca 12 air mi NW of Tres Piedras.-106.186936.74492789Meadows with Festuca arizonica and groups of Populus tremuloides, Abies concolor, and Pseudotsuga menziesii with Juniperus communis underneath. Phenology: flowering & fruiting.RMRM950112 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9541Jill E. Larson2006730211U.S.A.New MexicoRio ArribaCarson National Forest and Vicinity: Forest Road 724, above north side of Blas Canyon, ca 2.5 air mi ENE of Canjilon.-106.395336.888925602591Burned ponderosa pine forest with Quercus gambelii and Elymus longifolius. Phenology: flowering & fruiting.RMRM950111 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9657Jill E. Larson2006728209U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Gallegos Canyon Trail 4, on north side of NM Hwy 518, ca 0.5 air mi NW of Sipapu, ca 3 air mi NW of Tres Ritos.-105.556336.159825302560Mixed conifer forest with Pinus ponderosa, Pseudotsuga menziesii and areas near trail head. Phenology: flowering & fruiting.RMRM950110 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9701Jill E. Larson200681213U.S.A.New MexicoTaosCarson National Forest and Vicinity: Sangre de Cristo Range: Columbine Canyon Trail 71 from NM Hwy 38 to Deer Creek Trail junction, ca 4 air mi ESE of Questa.-105.515636.677423902591Trail along stream in mixed conifer forest of Abies concolor, Pseudotsuga menziesii, and a few Pinus ponderosa. Phenology: flowering & fruiting.RMRM950109 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9971Jill E. Larson200689221U.S.A.New MexicoColfaxCarson National Forest and Vicinity: Cimarron Range: Colin Neblett State Wildlife Area: along Maverick Creek from U.S. Hwy 64, ca 0.5 air mi NE of Gravel Pit Lakes, ca 7 air mi E of Eagle Nest, ca 1.5 air mi W of Ute Park at area boundary.-105.130736.549823322378Pinyon/juniper woodland with mixed conifers in drainage areas; old roads with Melilotus officinalis. Phenology: flowering & fruiting.RMRM950099 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton83145Ronald L. Hartman2006813225U.S.A.New MexicoTaos[location and coordinates withheld]24262439Canyon slopes and bottom. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4277bLuanne Lum Michelle Wilson2002716197U.S.A.WyomingParkAbsaroka Mountains: along BLM Road 1207 on Rattlesnake Mountain, ca 12 air mi WNW of Cody.-109.290444.586224872524Mixed coniferous forest and sagebrush. Phenology: flowering.RMRM804342 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton517Cheryl Mayer2005720201U.S.A.South DakotaPenningtonBlack Hills: Mount Rushmore National Memorial: Starling Basin (drainage SW and S of The Heads), beaver pond near south park boundary (southwest corner of Monument).1567Near beaver pond; lush vegetation dominated by grasses, sedges; canopy open - willow, white spruce, ponderosa pine, bur oak.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1525Melanie Arnett1998714195U.S.A.ColoradoHinsdaleSouthern Gunnison Basin: San Juan Mountains: ca 0.2 road mi E of Cebolla Campground; ca 2.9 air mi W of Dry Lake; ca 11.8 air mi E of Lake City along Forest Road 788.-107.092338.058128413048Steep south-facing slopes and gullies of narrow canyon to an open aspen/mixed conifer forest to a rocky south-facing slope. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1786Melanie Arnett1998716197U.S.A.ColoradoGunnisonSouthern Gunnison Basin: Sawatch Range: along Agate Creek near the Agate Creek Campground, ca 3 air mi NE of Sargents; ca 7.2 air mi W of Chipeta Mountain.-106.389438.430426822804Mixed conifer/aspen riparian. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1988Melanie Arnett1998721202U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Hills: ca 2.2 air mi NNW of Cochetopa Pass; ca 5.5 air mi SE of Cochetopa Dome; ca 19 air mi SW of Sargents along Forest Road 805-1A.-106.627438.185230183079Open mixed conifer, south-draining ravine. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2051Melanie Arnett1998721202U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Hills: ca 1.5 air mi N of North Pass; ca 14.6 air mi SW of Sargents along Lujan Creek.-106.572938.229130123060South-facing hill of drainage; grassy to wooded. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2578Melanie Arnett199884216U.S.A.ColoradoHinsdaleSouthern Gunnison Basin: San Juan Mountains: along Brush Creek from trailhead to mouth of Canon Infierno, ca 6.9-8.4 air mi W to WNW of Lake City along Forest Trail 461.-107.165538.037330243292Spruce forest in open canyon. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3015Melanie Arnett1998811223U.S.A.ColoradoSaguacheSouthern Gunnison Basin: ca 4.8 air mi S of Sawtooth Mountain; ca 0.6-2.6 road mi from intersection with Forest Road 788 (mostly between the first and second gates); ca 17.8 air mi ENE of Lake City on Forest Road 806.-106.863438.199928292987Sagebrush-dominated openings in mixed conifer foothills. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3053Melanie Arnett1998814226U.S.A.ColoradoSaguacheSouthern Gunnison Basin: San Juan Mountains: ca 4 air mi N of Sawtooth Mountain; ca 9.2 air mi W of Razor Creek Dome; ca 15 air mi S of Gunnison in Soldiers Park.-106.881538.331629573018Aspen grove with occasional fir and pine. Phenology: flowering & fruiting.RMRM747908 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4937Melanie Arnett199976187U.S.A.ColoradoGunnisonSouthern Gunnison Basin: San Juan Mountains: west side of County Road 58 at Indian Peak (9757') to unnamed peak at 9505', ca 4.5 air mi SE of Gateview; ca 7.8 air mi NNE of Powderhorn Lakes.-107.158938.236928652951Open mixed conifer woodland with aspen and sagebrush. Phenology: flowering & fruiting.RMRM747907 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5105Melanie Arnett1999713194U.S.A.ColoradoGunnisonSouthern Gunnison Basin: west side of Wolf Creek, ca 2 air mi NW of summit of Nine Mile Hill; ca 4.2 air mi SSW of Blaine Rock; ca 11.5 air mi SE of Sapinero.-107.102638.382825732646Sagebrush shrubland with watering holes. Phenology: flowering & fruiting.RMRM747906 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5163Melanie Arnett1999715196U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Hills: Gunnison National Forest: Indian Creek, ca 2 air mi WSW of Pinnacle Mine; ca 4.5 air mi ESE of Sargents; ca 7 air mi S of Monarch Pass.-106.333838.389828173006Riparian. Phenology: flowering & fruiting.RMRM747905 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5430Melanie Arnett1999720201U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Hills: Gunnison National Forest: West Fork Long Branch, ca 1-4 air mi NNE of Baldy Lake; ca 6-10 air mi SSW of Sargents.-106.463638.348428653414Forest. Phenology: flowering & fruiting.RMRM747904 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5510Melanie Arnett1999723204U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Hills: Gunnison National Forest: ca 0.5 air mi NE of South Pass, ca 7.3 air mi SW of Cochetopa Pass; ca 9.5 air mi S of Cochetopa Dome.-106.689838.080131153237Grassy drainage and adjacent open forest. Phenology: flowering & fruiting.RMRM747903 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5689Melanie Arnett1999728209U.S.A.ColoradoSaguacheSouthern Gunnison Basin: San Juan Mountains: Gunnison National Forest: along and around Bead Creek, ca 2 air mi SE of Cooper Mountain; ca 6.2 air mi NNE of Sawtooth Mountain.-106.808938.346827802823Sagebrush mountain park with creek. Phenology: flowering & fruiting.RMRM747902 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5690Melanie Arnett1999728209U.S.A.ColoradoSaguacheSouthern Gunnison Basin: San Juan Mountains: Gunnison National Forest: along and around Bead Creek, ca 2 air mi SE of Cooper Mountain; ca 6.2 air mi NNE of Sawtooth Mountain.-106.808938.346827802823Sagebrush mountain park with creek. Phenology: flowering & fruiting.RMRM747901 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6423Melanie Arnett199985217U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Park: Gunnison National Forest: north side of Forest Road 804, ca 1.5 road mi from intersection with County Road NN-14; ca 2.2 air mi ESE of Cochetopa Dome.-106.681838.200428532884Ash beds in mountain parkland. Phenology: flowering & fruiting.RMRM747900 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6514Melanie Arnett199987219U.S.A.ColoradoSaguacheSouthern Gunnison Basin: Cochetopa Hills: Gunnison National Forest: northeast end of Razor Creek Park, ca 1.8 air mi NW of West Baldy; ca 3 air mi SSW of Needle Creek Reservoir.-106.572838.317529573024Mountain parkland. Phenology: flowering & fruiting.RMRM747891 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7449Melanie Arnett1999824236U.S.A.ColoradoGunnisonSouthern Gunnison Basin: Colo Hwy 149 along lower portion of Dutch Gulch, ca 1.3 air mi ESE of Gateview; ca 2.5 air mi WNW of Cap Mountain.-107.196538.28072560Roadside. Phenology: flowering & fruiting.RMRM747890 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7558Melanie Arnett1999826238U.S.A.ColoradoSaguacheSouthern Gunnison Basin: San Juan Mountains: Gunnison National Forest: La Garita Wilderness: W along Stewart Creek Trail from Forest Road 794 for ca 1 mi, ca 3.3-4.4 air mi ESE-E of Stewart Peak.-106.854538.022332013262Open canyon. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3254Lynn Marie Moore1994719200U.S.A.ColoradoDoloresUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Coal Creek drainage, ca 4 air mi N of Rico, northwest side of Colo Hwy 145.-107.994337.84292926East facing riparian area along creek and adjacent slopes; Engelmann spruce and Aspen. Phenology: flowering & fruiting.RMRM713073 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3580Lynn Marie Moore199483215U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: House Creek Area around McPhee Reservoir, ca 5.5 air mi N of Dolores.-108.476837.552321642225Ponderosa pine and oak woodland above and around cow pond and seepage. Phenology: flowering & fruiting.RMUSFS478336 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton139M. W. Talbot1915826238U.S.A.New MexicoCatronDatil National Forest: Seven Troughs.-108.7857934.03972355Pine community in damp soi; not abundant; distributed throughout pine community in damp situations. Phenology: flowering & fruiting.RMUSFS478337 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton98M. W. Talbot1915105278U.S.A.New MexicoSierraDatil National Forest: El Caso.2408Pine community; common but not abundant; distributed throughout pine community. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2551Rachel Newton2005727208U.S.A.WyomingAlbanyWetlands and Adjacent Areas: Laramie River, ca 26 air mi SW of Laramie.-106.016641.09962243Moist river banks and flood plains. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2761Rachel Newton2005729210U.S.A.WyomingCarbonWetlands and Adjacent Areas: North Fork Encampment River, ca 4 air mi SW of Encampment.-106.856441.17862367Moist banks and flood plains. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6516Rachel Newton2006729210U.S.A.WyomingWestonWetlands and Adjacent Areas: seeping spring, ca 7 air mi NE of Newcastle.-104.0788443.890991473Dry, sandy Pinus forest. Phenology: flowering & fruiting.RMRM764993 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3330Sarah Nunn2001724205U.S.A.ColoradoLarimerRoosevelt National Forest: Medicine Bow Mountains: where Forest Road 200 crosses Johnson Creek, ca 59 air mi NW of Fort Collins.-106.160840.936527742804Aspen stands. Phenology: flowering.RMRM764992 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4836Sarah Nunn2001816228U.S.A.ColoradoLarimerRoosevelt National Forest: Medicine Bow Mountains: Rawah Wilderness: West Branch Trail from Laramie River Road (County Road 103), ca 38 air mi W of Fort Collins.-105.88540.662327432865Lodgepole pine and aspen groves. Phenology: flowering.RMRM278235 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10046C. L. Porter Marjorie W. Porter196584216U.S.A.WyomingCrookBear Lodge Range: N of Sundance, on Warren Peak, in Reuters Canyon [above the campground].-104.431744.45331829Pinus ponderosa forest. Phenology: flowering & fruiting.RMRM278241 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10112C. L. Porter Marjorie W. Porter196591244U.S.A.WyomingAlbanyMedicine Bow Range: on the Sand Lake Road, along North Fork.-106.164641.3512560On gravelly banks, dry, rocky sagebrush slopes. Common. Phenology: flowering & fruiting.RMRM204059 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4073C. L. Porter194683215U.S.A.WyomingCarbonMedicine Bow National Forest: Hayden Division: near Haskins Creek.-107.044441.15482743Hillsides. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton330Brigitte Ranne1994810222U.S.A.ColoradoCusterSangre de Cristo Range: San Isabel National Forest: ca 7 air mi W of Westcliffe,slopes above Venable Creek Trail, 0.2 mi past Venable Falls.3262Common in coniferous forest dominated by Pinus aristata.RMRM806722 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1167Brian Reif2003623174U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Cochiti Canyon, 4.3 air mi SSE of Rabbit Mountain. From crossing of Trail 113 SE 1.3 mi in canyon.-106.43656735.779421952524Canyon bottom and riparian. Phenology: flowering.RMRM806738 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1777Brian Reif200276187U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Rito Caf‚ 12 air mi SW of Coyote. From Trail 32 at Forest Road 70 junction NW 1.5 air mi to crossing of Rito Caf‚ then 0.8 air mi SE down Rito Caf‚ before returning to start.-106.74518336.03823328653003Roadside. Phenology: flowering & fruiting.RMRM806697 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1953Brian Reif200278189U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 77, 4 air mi E of Gallina, W down road 1 mi from sharp bend crossing drainage.-106.76603336.23396724082487Roadside and roadcut sedimentary beds on a mixed conifer slope with pinyon/juniper. Phenology: flowering & fruiting.RMRM806696 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2152Brian Reif2002712193U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Paso del Norte Road, 1 air mi SW of Rabbit Mountain. From saddle E 0.5 mi on road to Forest Road 36/268 junction then W 0.2 mi into drainage and back to start.-106.47531735.826727252804Roadside. Phenology: flowering & fruiting.RMRM806679 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3562Brian Reif200289221U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness. Headwaters of Rito Gallina on Trail 150, 12 air mi SE of Chimayo. Agua Sarca Trail 228 junction at saddle SE 0.1 air mi to Agua Sarca.-105.811335.90946726702743Traversing steep-walled drainages along contour. Mixed conifer forest of ponderosa pine forest on more exposed slopes. Coarse granitic gravel substrate. Phenology: flowering.RMRM806678 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4101Brian Reif2002818230U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Panchuela Creek, 3 air mi NNW of Cowles. From Cave Creek junction N 0.1 air mi on Panchuela Creek.-105.67916735.84928326212682Trailside along riparian/meadows of narrow canyon bottom below slopes of mixed conifers and volcanic bluffs. Phenology: flowering & fruiting.RMRM806733 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4273Brian Reif2002820232U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Indian Creek off of NM Hwy 63, 9 air mi N of Pecos. SE on road along creek ca 0.8 air mi.-105.70196735.72228323532426Canyon bottom collections including roadside, granitic banks, and riparian. Granitic substrate. Phenology: flowering & fruiting.RMRM806732 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4360Brian Reif2002823235U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Santa Fe Municipal Watershed, 7 air mi ENE of Santa Fe, east side at end of road NE of McClure Reservoir, S 0.4 air mi along Santa Fe River.-105.8058535.70783325002536Forested meadow. Phenology: flowering & fruiting.RMRM806721 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton75559Ronald L. Hartman2002712193U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Las Conchas Campground on NM Hwy 4 upstream on East Fork Jemez River to 0.8 mi.-106.52401735.81452579Canyon and streamside. Phenology: flowering & fruiting.RMRM806720 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton75728Ronald L. Hartman2002712193U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: NM Hwy 4, ca 1.5 road mi from NM Hwy 126, Dark Canyon trailhead.-106.63178335.85222234Roadside. Phenology: flowering & fruiting.RMRM806719 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton75856Ronald L. Hartman Jim Fowler2002714195U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Sierra Nacemiento: Deer Creek, 5 air mi WNW of Gilman.-106.841435.7371672439Wooded area. Phenology: flowering & fruiting.RMRM806731 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5417Brian Reif2003616167U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Jemez Mountains: Dome Wilderness: Capulin Canyon below Los Utes Spring, 2 air mi W of Bandelier National Monument.-106.38635.77322432298Riparian and canyon bottom through burn and with thick deadfall; surrounding conifer forest of mostly Douglas fir/white fir; thick locust/Gambels oak stands below. Phenology: flowering & fruiting.RMRM806730 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5635Brian Reif2003619170U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Presa Spring and vicinity on southern edge of Chama River Canyon Wilderness, 8 air mi NE of Gallina. N 0.2 air mi to spring-106.7336.31125002536Mixed conifer forest slopes with thick needle beds and an understory of Oregon grape/kinnickinnick, traversed in places by an open, old roadbed. Phenology: flowering & fruiting.RMRM806729 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6410Brian Reif2003711192U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 100 at Temoline Canyon, 4 air mi SE of Youngsville. NW1/4 air mi on road.-106.51536.1422439Roadside and roadcut through wide, flat canyon bottom of pinyon/juniper; sagebrush, rabbitbrush, and saltbush below. Phenology: flowering.RMRM806695 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6709Brian Reif2003713194U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: East Fork Polvadera Creek, 1.5 air mi due W of Polvadera Peak. SE 0.3 air mi up steep, west-facing canyon slope.-106.43436.05226522835White fir down low merging into a dense Gambels oak woodland with rose and locust. Phenology: flowering.RMRM806694 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6734Brian Reif2003714195U.S.A.New MexicoRio ArribaSanta Fe National Forest and Vicinity: Jemez Mountains: Forest Road 100 near Mesa Lagunas, 7 air mi S of Coyote.-106.59236.0662774Roadside and adjacent slopes; pockets of grassy meadow in a ponderosa pine forest with some spruce, fir, and mature aspen; Gambels oak below. Phenology: flowering & fruiting.RMRM806693 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6943Brian Reif2003719200U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 375, 1.7 air mi E of Glorieta Baldy at prominent switchback.-105.7735.6562713Roadside; lower slopes and drainage in spruce/fir forest; limber pine, Jamesia, red maple, and aspen below; Rudebeckia dominant in drainage. Phenology: flowering.RMRM806677 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7053Brian Reif2003720201U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Pecos River W of Albright Creek, 2.5 air mi NE of Cowles; at granitic constricition of canyon.-105.63735.8382560Trailside through grassy canyon bottom below south-facing canyon slope of ponderosa pine and thick Gambels oak. Phenology: flowering & fruiting.RMRM806676 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7334Brian Reif2003725206U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 156 at prominent switchback 3 air mi due W of Elk Mountain summit, N 0.2 air mi along road.-105.635.7663250Roadside along spruce slope with bristlecone pine and corkbark fir; also, pockets of open meadow. Phenology: flowering & fruiting.RMRM806675 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7792Brian Reif200382214U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Juan de Gabaldon Grant: Trail 254, 6.5 air mi due E of Tesuque; from Forest Road 102 SE 0.2 air mi on trail to drainage.-105.82235.7762835South-facing slope, with granitic gravel, of mixed conifers including southwestern white pine; Gambels oak understory. Phenology: flowering & fruiting.RMRM806674 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7955Brian Reif200383215U.S.A.New MexicoSanta FeSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Rio Nambe Trail 160 E from Trail 403 junction, 2 3/4 air mi WSW of Santa Fe Baldy. N35.824 W105.800 from junction ESE 0.5 air mi to N35.821 W105.793.-105.835.82427312865Canyon bottom of mixed conifers and mature aspen. Phenology: flowering & fruiting.RMRM806673 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8285Brian Reif200389221U.S.A.New MexicoMoraSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Rio Medio Trail 155, 10 air mi NNW of Cowles; WNW 0.3 air mi on trail.-105.71235.94382743South-facing slope of eroded granite with mixed conifers including mature southwestern white pine. Phenology: flowering & fruiting.RMRM806672 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8555Brian Reif2003817229U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Forest Road 223 roadside at Valle Largo Trail 248 Trailhead, 2 air mi NE of Cowles.-105.637935.82792743Meadow slope with mature aspen and scattered mixed conifers. Phenology: flowering & fruiting.RMRM806671 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8875Brian Reif2003819231U.S.A.New MexicoSan MiguelSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Lone Pine Mesa to Beaver Creek on Trail 214, 3.5 air mi SW of Rociada; N35.8001 W105.4687 on mesa W 0.8 air mi to canyon bottom at N35.8001 W105.4821.-105.482135.800127562939White fir/Douglas fir forest with southwestern white pine; mature aspen toward bottom. Phenology: flowering & fruiting.RMRM804824 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62004B. E. Nelson2004720202U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Sierra Nacimiento: Joaquin Canyon on the north side of Mesa Venado, ca 3/4 air mi W of Rio Guadalupe, ca 6.5 air mi W of Jemez Springs; ca 19.5 air mi SSE of Cuba.-106.804635.77892164Dryer meadows along the creek. Phenology: flowering.RMRM804823 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62101B. E. Nelson2004720202U.S.A.New MexicoSandovalSanta Fe National Forest and Vicinity: Sierra Nacimiento: Joaquin Canyon, ca 2 3/4 - 3 1/4 air mi W of Rio Guadalupe, ca 8.5 air mi N of Jemez Springs; ca 17.5 air mi SSE of Cuba.-106.830735.793723932454Along creek and adjacent meadows. Phenology: flowering.RMRM804825 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10319Brian Reif2004810223U.S.A.New MexicoMoraSanta Fe National Forest and Vicinity: Sangre de Cristo Mountains: Pecos Wilderness: Pecos Falls, 11 air mi NNE of Cowles.-105.556835.93773201East-facing open meadow slope with Potentilla fruticosa, Linum, Hymenoxys, and Danthonia in Picea pungens forest. Phenology: flowering.RMRM344959 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6416Almut G. Jones1983812224U.S.A.WyomingSheridanBig Horn Mountains: Big Game Winter Feeding Range: 13 mi above Dayton.-107.36344.80512500Associated with Aster mollis. Voucher for living plant 83-91. Phenology: flowering & fruiting.RMRM41174 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.T. D. A. CockerellU.S.A.New MexicoOteroCloudcroft.-105.742932.95542652Phenology: flowering & fruiting.RMRM600716 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6306Robert D. Dorn1995725206U.S.A.WyomingPlatte18 mi NW of Wheatland.-105.254142.21241829Grassy slope, with Campanula, and Geranium. Rays lavender. Phenology: flowering & fruiting.RMRM711904 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton72399Ronald L. Hartman2001721202U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: saddle 1.8 air mi SW of La Jara Creek and road from main (S) gate, SE 0.7 air mi to peak "9795".-106.535635.842727882986Logging road and forest with grassland on top. Phenology: flowering.RMRM737269 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8669Thomas W. Nelson Jane P. Nelson1987720201U.S.A.WyomingNatronaOn Muddy Mountain.2286Open pine woodland. Phenology: flowering & fruiting.RMRM737246 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8817Thomas W. Nelson Jane P. Nelson1990723204U.S.A.WyomingConverseAround Esterbrook.1859In meadow. Phenology: flowering & fruiting.RMRM737222 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8837Thomas W. Nelson Jane P. Nelson1990723204U.S.A.WyomingConverseAlong County Road 94 to Esterbrook 3.4 mi N of Forest Service Station.1676Wet roadside meadow. Phenology: flowering & fruiting.RMRM711903 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton72747Ronald L. Hartman2001725206U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: near northeast end of Redondo Border.-106.56444435.90497229572987Mixed conifer forest, meadows, and logging roads. Phenology: flowering.RMRM615818 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16183Walter Fertig199581213U.S.A.WyomingAlbanyNorthern Laramie Range: Sunset Hill, 1.5 air mi E of Esterbrook on north side of Forest Road 683; ca 4 mi NE of Rock Mountain.-105.332442.42752012East-facing base of granite cliff in shady Ponderosa pine forest with Rocky Mountain juniper understory; soil moist, needle-rich. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16993aWalter Fertig George Jones199687220U.S.A.WyomingSheridanBig Horn Mountains: Boyd Ridge W of Hidden Spring on Boyd Ridge Road, ca 2 mi N of Leaky Mountain on ridge on east side of Dark Canyon.-107.713244.93282439Meadow of Stipa nelsonii, Elymus trachycaulus and Poa secunda with scattered Potentilla fruticosa at edge of Picea engelmannii/Pinus flexilis forest on limey humus soil with scattered limey gravel.RMRM613362 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16993bWalter Fertig George Jones199687220U.S.A.WyomingSheridanBig Horn Mountains: Boyd Ridge W of Hidden Spring on Boyd Ridge Road, ca 2 mi N of Leaky Mountain on ridge on east side of Dark Canyon.-107.713244.93282439Meadow of Stipa nelsonii, Elymus trachycaulus and Poa secunda with scattered Potentilla fruticosa at edge of Picea engelmannii/Pinus flexilis forest on limey humus soil with scattered limey gravel. Phenology: flowering & fruiting.RMRM615933 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17020Walter Fertig199688221U.S.A.WyomingSheridanBig Horn Range: tributary of Mann Creek on east side of Dark Canyon below rim of Boyd Ridge, ca 1 mi N of Leaky Mountain.-107.733644.91872195Rocky, open limestone boulder slope in burn area being recolonized by Pseudotsuga, Bromus inermis and Dactylis. Phenology: flowering & fruiting.RMRM615859 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17103Walter Fertig George Jones1996811224U.S.A.WyomingSheridanBig Horn Range: ridge on north side of Pumpkin Creek Canyon, ca 1.1 mi S of Marble Quarry Road; ca 0.2 mi WNW of confluence of Pumpkin and Cub creeks; ca 2.5 mi S of Montana.-107.75444.961220732134Artemisia tridentata var. vaseyana/Festuca idahoensis grassland on gently southeast dipping ridge on dry deep loamy soils derived from limestone with little surface rock. Phenology: flowering & fruiting.RMRM683841 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18834Walter Fertig1999720201U.S.A.WyomingSheridanBig Horn Range: south side of Steamboat Rock on north side of U.S. Hwy 14, 1.5 air mi W of Sand Turn; ca 19 air mi W of Sheridan.-107.384844.79082317Forb-rich meadow of Phleum pratense, Poa pratensis, Festuca idahoensis, and Stipa nelsonii on south-facing steep slope of rocky, lime-rich brown loamy-clay with scattered dolomite boulders; vegetative cover ca 75% and over 14 inches high. Some gopher ac Phenology: flowering & fruiting.RMRM711906 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton73160Ronald L. Hartman2001730211U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Jemez Falls Road to turn south; two track and bushwack to southwest corner of Ranch.-106.61735.82769424392489Ponderosa pine forest with rock outcrops and swales. Phenology: flowering.RMRM711905 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton73214Ronald L. Hartman2001730211U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Sulphur Springs gate NE ca 1 road mi to and beyond Sulphur Springs.-106.62088935.90358325002560Roadside, stream bottoms, and sulphur springs. Phenology: flowering.RMRMRS Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton724Charles P. Pase1956725207U.S.A.WyomingCrookBlack Hills National Forest; "D" Ranch.1829Phenology: flowering & fruiting.RMRMRS Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton867Charles P. Pase1957813225U.S.A.South DakotaPenningtonBlack Hills National Forest; Hay Draw.1951Phenology: flowering & fruiting.RMRM711900 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton74239Ronald L. Hartman2001917260U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: general route - west gate (Sulphur Springs Road) N along west side fence to Sulphur Point and San Antonio Mountain E on road to 9200 ft and bushwack to Sulphur Springs Road; San Antionio Mountain.-106.61708335.9341673042Coniferous forest, clearings, roadside. Phenology: flowering & fruiting.RMRMRS Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton15Hermann W. Krauch193381213U.S.A.New MexicoOteroLincoln National Forest: Cloudcroft.-105.742932.955392743Phenology: flowering & fruiting.RMRM758803 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton49933B. E. Nelson2000627179U.S.A.ColoradoJacksonNorth-central Colorado: Rabbit Ears Range: along Willow Creek and Forest Road 106, ca 4.5 air mi N of Haystack Mountain, ca 4 air mi S of Rand; ca 24 air mi SSE of Walden.-106.18840.387227252756Stony mountain sagebrush slopes. Phenology: flowering.RMRM758304 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton51492B. E. Nelson200087220U.S.A.ColoradoRouttNorth-central Colorado: Park Range: along a tributary of Tennessee Creek E and below Shield Mountain, ca 6.5-7 air mi NW of Columbine; ca 32.5-33 air mi NNW of Steamboat Springs.-107.04440.924124392530Meadows, along small drainage channnels, and edge of aspen. Phenology: flowering.RMRM758802 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton52104B. E. Nelson200096250U.S.A.ColoradoJacksonNorth-central Colorado: Rabbit Ears Range: along Middle Fork Arapaho Creek on Forest Road 700, ca 1.5 air mi W of Arapaho Ridge, ca 10.5 air mi SW of Rand; ca 24 air mi S of Walden.-106.358540.387228902902Open mixed conifer forest. Phenology: flowering & fruiting.RMRM758801 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton67900Ronald L. Hartman2000710192U.S.A.ColoradoRouttNorth-central Colorado: Elkhead Mountains: First Creek, ca 4 air mi S of California Park Guard Station.-107.157540.737323782408Meadows and streamside. Phenology: flowering.RMRM758800 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton68852Ronald L. Hartman Sarah Nunn2000727209U.S.A.ColoradoJacksonNorth-central Colorado: Park Range: N-S trail just off Fryingpan Trail, 4-5 air mi S of Big Creek Lakes, ca 18 air mi NW of Walden.-106.574140.85022652Forested edge. Phenology: flowering.RMRM758799 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton69369Ronald L. Hartman2000731213U.S.A.ColoradoJacksonNorth-central Colorado: Medicine Bow Mountains: Jack Creek and vicinity, 0.5 air mi SW of Calamity Pass, ca 6 air mi S of Gould.-106.017640.43062774Spruce-fir forest. Phenology: flowering.RMRM735093 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton76767Ronald L. Hartman2002820232U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: road at pass by South Mountain, N 1 mi on Redondo Peak.-106.5414535.84876730123036Rocky slopes with patchy grassy areas and conifers. Phenology: flowering.RMRM762686 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton53291B. E. Nelson2001627178U.S.A.ColoradoRouttNorth-central Colorado: Park Range: at the junction of Bedrock and Tennessee creeks, along Beeler Gulch and vicinity, ca 35.5 air mi NNW of Steamboat Springs.-107.024540.96722312262Mountain shrub slope. Phenology: flowering & fruiting.RMRM762681 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton53494B. E. Nelson2001628179U.S.A.ColoradoRouttNorth-central Colorado: Elkhead Mountains: along Salt Creek and County Road 46, ca 1.5 air mi N of Rattlesnake Butte, ca 9 air mi SW of Clark; ca 12 air mi NW of Steamboat Springs.-107.005640.593421342146Roadside and fencerows in grassland/sagebrush-grassland. Phenology: flowering & fruiting.RMRM762680 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton54115B. E. Nelson2001716197U.S.A.ColoradoJacksonNorth-central Colorado: Rabbit Ears Range: along Grassy Run or Trail 1135 on the east side of Arapaho Ridge, ca 7.5-8 air mi SW of Rand; ca 23.5 air mi S of Walden.-106.284640.387330943475Open stony ridge in spruce-fir forest. Phenology: flowering & fruiting.RMRM762682 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton54216B. E. Nelson2001717198U.S.A.ColoradoJacksonNorth-central Colorado: Rabbit Ears Range: ca 1 1/4 air mi S of Slack-Weiss Reservoir and ca 2 air mi WNW of the north end of Arapaho Ridge, ca 21.5 air mi S of Walden.-106.360440.416327802810Sagebrush meadows. Phenology: flowering & fruiting.RMRM762683 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton54263B. E. Nelson2001717198U.S.A.ColoradoJacksonNorth-central Colorado: North Park: along County Road 5, ca 1/2 - 1 1/4 mi N of Chedsey Creek, ca 7.5-8.5 air mi S of Delaney Butte, ca 17 air mi SW of Walden.-106.549940.590125602591Rolling Artemisia - Eriogonum ridgetop. Phenology: flowering & fruiting.RMRM762684 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55014B. E. Nelson2001731212U.S.A.ColoradoRouttNorth-central Colorado: Park Range: north end of Crane Park just above Middle Fork Little Snake River, ca 6.5 air mi NNE of Columbine; ca 31.5 air mi N of Steamboat Springs.-106.929940.938225122548Silver-mountain sagebrush slope and meadow. Phenology: flowering & fruiting.RMRM762677 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55035B. E. Nelson200181213U.S.A.ColoradoRouttNorth-central Colorado: Park Range: along Trail 1204 along Middle Fork Little Snake River between Big Red Park and the Continental Divide, ca 29.5 air mi N of Steamboat Springs.-106.854340.909526822780Aspen forest. Phenology: flowering & fruiting.RMRM762678 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55307B. E. Nelson200187219U.S.A.ColoradoRouttNorth-central Colorado: Park Range: on Green Ridge along upper Lawson Creek and Forest Road 285, ca 5 air mi ENE of Yampa; ca 8 air mi SE of Phippsburg.-106.820540.171729753012Open slope above the creek. Phenology: flowering & fruiting.RMRM762679 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55385B. E. Nelson200188220U.S.A.ColoradoRouttNorth-central Colorado: Park Range: along old logging road S and E above Rock Creek, ca 1.5-2.5 air mi ENE of Long Park, ca 15-16 air mi SE of Yampa.-106.648340.053826822713Roadside and adjacent lodgpole pine forest. Phenology: flowering & fruiting.RMRM762685 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55488B. E. Nelson200188220U.S.A.ColoradoGrandNorth-central Colorado: Park Range: along old logging road between Jolley and Horse creeks, ca 4 air mi WSW of Gore Pass, ca 12.5 air mi W of Kremmling.-106.629140.053826822759Dry to wet meadow with scattered willow thickets. Phenology: flowering & fruiting.RMRM762676 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55502B. E. Nelson200188220U.S.A.ColoradoGrandNorth-central Colorado: Park Range: along old logging road between Jolley and Horse creeks, ca 4 air mi WSW of Gore Pass, ca 12.5 air mi W of Kremmling.-106.629140.053826822759Open aspen forest. Phenology: flowering & fruiting.RMRM762651 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55579B. E. Nelson2001813225U.S.A.ColoradoRouttNorth-central Colorado: Elkhead Mountains: along South Fork Slater Creek, ca 1 1/4-1 3/4 air mi N of Lost Park, ca 22-22.5 air mi N of Hayden.-107.289440.808925122652Stream bank and adjacent open slopes. Phenology: flowering & fruiting.RMRM762650 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55650B. E. Nelson2001813225U.S.A.ColoradoMoffatNorth-central Colorado: Elkhead Mountains: at the end of Forest Road 133, ca 3 air mi NE of Black Mountain, ca 2.5 air mi SE of Buck Point, ca 23.5 air mi NNE of Craig.-107.327240.808928172951Small clearing in aspen-spruce-fir forest. Phenology: flowering & fruiting.RMRM762649 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton55985B. E. Nelson2001820232U.S.A.ColoradoJacksonNorth-central Colorado: Rabbit Ears Range: along the Continental Divide ca 0.5-1 air mi NW of Chimney Rock, ca 8 air mi ESE of Muddy Pass; ca 27.5 air mi SSW of Walden.-106.436240.358328902987Open area in aspen forest. Phenology: flowering & fruiting.RMRM735101 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton76983Ronald L. Hartman2002822234U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Redondo Creek, 1.5 mi upstream of Union Building; Union Oil Geothermal Network of drilling pads, 7-8 tiers of platforms.-106.57531735.89548327532865Grassy disturbed areas and roadsides. Phenology: flowering.RMRM762648 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton72271Ronald L. Hartman2001717198U.S.A.ColoradoJacksonNorth-central Colorado: Rabbit Ears Range: Arapaho Creek Trail from rock slide (ca 1 air mi from ridge top) to base of Sheep Mountain.-106.265740.35833018Meadow and slope to ridge. Phenology: flowering & fruiting.RMRM762647 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton73495Ronald L. Hartman200184216U.S.A.ColoradoJacksonNorth-central Colorado: Medicine Bow Mountains: Colorado State Forest State Park: along County Road 8A, 3.1 road mi from County Road 8.-106.171740.85032621Streamside and adjacent redbeds. Phenology: flowering & fruiting.RMRM768803 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton59952B. E. Nelson200387219U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: on the ridge W of Valle Grande, ca 1 1/4-1 3/4 air mi N of Ranch Headquarters, ca 12.5 air mi W of Los Alamos.-106.51835.880627132926Open mixed conifer forest. Phenology: flowering.RMRM768802 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton59976B. E. Nelson200387219U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: ridge between Valle Grande and Valle Jaramillo, ca 1 3/4-2 1/2 air mi NE of Redondo Peak, ca 12 air mi W of Los Alamos.-106.528735.889929263045Logged areas. Phenology: flowering & fruiting.RMRM768801 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton60078B. E. Nelson2003811223U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: along K Road at the northeast base of San Antonio Mountain from N35.9449 W106.5925 to N35.9437 W106.5989, ca 17 air mi W of Los Alamos.-106.592535.944927132774Roadside and adjacent open mixed conifer/aspen forest. Phenology: flowering & fruiting.RMRM768800 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton60302B. E. Nelson2003813225U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: on the east slope of Cerros del Abrigo above the Abrigo Trail for 0.3 mi on either side of N35.9301 W106.4726, ca 10-11 air mi WNW of Los Alamos.-106.472635.930128963109Along old logging road, slopes in open mixed conifer/aspen forest, and open areas. Phenology: flowering.RMRM768799 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton60425B. E. Nelson2003815227U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: along H Road for ca 1/4 mi, ca 1.5 air mi WSW of Cerro de la Garita, ca 16 air mi NW of Los Alamos.-106.554435.99443012Old logging road and adjacent white fir/Engelmann spruce/corkbark fir/aspen forest. Phenology: flowering.RMRM768798 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton78074Ronald L. Hartman Jonathan Coop2003719200U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Short Canyon, lower 0.5 air mi.-106.60318335.9170525882637Grassy slopes with scattered patches of pine and oak. Phenology: flowering.RMRM768797 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton78232Ronald L. Hartman2003724205U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Puerta de Trasquilar NW up end of Trasquilar.-106.49603335.93976727212853South exposure with oak and aspen. Phenology: flowering.RMRM768796 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton78440Ronald L. Hartman2003811223U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: East Fork Jemez River, short segment in Preserve ca 1 air mi SW of El Cajete (center of caldera).-106.5750535.8276524142435Along river with blue spruce and white fir on slopes, willow and birch scattered on bank. Phenology: flowering.RMRM768795 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton78609Ronald L. Hartman2003814226U.S.A.New MexicoSandovalValles Caldera National Preserve: from west base of Cerro Grande to summit, then NNE to saddle with Pajarito Mountain, then SE in Canyon de Valle to border with Santa Fe NF; head of Canyon de Valle to forest boundary btw Cerro Grande and Pajarito Mtn.-106.40653335.88018327742896Grassy areas with patches of aspen and dried stream adjacent to spruce forest. Phenology: flowering.RMRM99212 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton518Arthur C. McIntosh1927726207U.S.A.South DakotaPenningtonRapid City: Rapid Creek Canyon (Dark Canyon).-103.361644.051110481432In shade. Phenology: flowering.RMRM768763 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton78857Ronald L. Hartman2003821233U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Pajarito Mountain, east side of summit to Los Alamos county line; Pajarito Canyon drainage.-106.40181735.88863331093170Grassy areas. Phenology: fruiting.RMUSFS478324 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton867Charles P. Pase1957813225U.S.A.South DakotaPenningtonBlack Hills National Forest: Hay Draw.-103.804143.93152073On flat slope; deep fertile loam soil; dry meadow vegetation type with Stipa columbiana, Stipa richardsoni, Carex spp., and Poa pratensis. Lat/Long on NE cor S31 (USGS 7.5) G. Bryson Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton130Cheryl Mayer200087220U.S.A.South DakotaCusterBlack Hills: Black Elk Wilderness: Trail # 7 along tributary to Grizzly Bear Creek, ca 7.8 air mi NE of Custer.-103.482943.84911597Ponderosa pine; near streamside. Phenology: flowering.RMRM709853 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton130Cheryl Mayer200087220U.S.A.South DakotaCusterBlack Hills: Black Elk Wilderness: Trail # 7 along tributary to Grizzly Bear Creek, ca 7.8 air mi NE of Custer.-103.482943.84911597Ponderosa pine; near streamside. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton97Cheryl Mayer200076188U.S.A.South DakotaPenningtonBlack Hills: Black Elk Wilderness: along Grizzly Bear Creek ca 7.2 air mi SE of Hill City.-103.4643.86531487Near trail. Phenology: flowering.RMRM709881 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton97Cheryl Mayer200076188U.S.A.South DakotaPenningtonBlack Hills: Black Elk Wilderness: along Grizzly Bear Creek, ca 7.2 air mi SE of Hill City.-103.4643.86531487Near trail. Phenology: flowering.RMRM724425 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton90-99D. J. Ode1990824236U.S.A.South DakotaLawrenceUpper Polo Gulch, 2.5 air mi NW of Deadwood.-103.76344.40311493Growing on steep talus slope 10 ft above stream with Bromus ciliatus, Aster laevis, and Campanula. Several stems from caudex. Phenology: flowering.RMUSFS478322 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton28E. Chester Garrett1969717198U.S.A.South DakotaLawrenceBlack Hills National Forest: plateau above Savoy.-103.965544.352817831829woody shrubs mesic habitat. Abundant; flower purple. Phenology: flowering.RMRM770718 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton61471B. E. Nelson200479191U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: along East Fork Jemez River, ca 3/4 - 1 air mi E of NM Hwy 4, ca 8 air mi NE of Jemez Springs; ca 15 air mi WSW of Los Alamos.-106.576835.82892423Open, south-facing slope with large ponderosa pines. Phenology: flowering.RMRM531187 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6391Erwin F. Evert198392245U.S.A.South DakotaLawrenceBlack Hills: Icebox Gulch along U.S. Hwy 85.-103.853844.29141707Phenology: flowering.RMRM568122 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10564Gary E. Larson James R. Johnson1991717198U.S.A.South DakotaPenningtonNewton Lake picinic area; along Newton Fork Spring Creek.-103.610343.96431609Open meadow along creek. Common. Phenology: flowering.RMRM770717 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton61760B. E. Nelson2004715197U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Banco Bonito: from N35.8478 W106.5650 on C Road WSW ca 0.5 air mi to N35.8462 W106.5735, ca 14.5 - 15 air mi WSW of Los Alamos.-106.573535.846227072719Mixed conifer/aspen forest with occasional volcanic rock outcrop and small clearings. Phenology: flowering.RMUSFS478323 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9H. A. Gould192784216U.S.A.South DakotaPenningtonHarney National Forest: Antelope Draw.-104.004643.985719811996On southwest slope; black loam soil; meadow type. Plentiful. Phenology: flowering.RMRM118270 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.H. E. Lee192581213U.S.A.South DakotaPenningtonHead of Prairie Creek.-103.531944.03671692Hillside. Phenology: flowering.RMRM106125 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton466Henry Lee1925726207U.S.A.South DakotaPenningtonBear Gulch near Pactola. [possibly inundated]-103.524344.060513961646Open parks. Phenology: flowering.RMRM770716 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton61817B. E. Nelson2004715197U.S.A.New MexicoSandovalValles Caldera National Preserve: Jemez Mountains: Banco Bonito: from N35.8462 W106.5735 WSW ca 1 air mi to N35.8407 W106.5889 at the powerline, ca 16 air mi WSW of Los Alamos.-106.583835.845126522667Mixed conifer/aspen forest with occasional volcanic rock outcrop and small clearings. Phenology: flowering.RMRM111165 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2587Herman E. Hayward192783215U.S.A.South DakotaLawrenceWhitewood.-103.662544.416710971524Canyon; north-facing slope; oak, willow, and elm association. Phenology: flowering.RMRM111166 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2737Herman E. Hayward192785217U.S.A.South DakotaLawrenceLimestone District: Crooks Tower.-103.934344.15142146Meadow and open woods; grass and yellow pine association; mesophytic. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton12096Hollis Marriott Patches2000726208U.S.A.South DakotaPenningtonBlack Hills: Willow Creek just downstream from Black Elk Wilderness boundary, ca 4.0 air mi SSE of Hill City.-103.529343.88841585W of creek in drainage bottom under Picea glauca.RMRM698636 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton12096Hollis Marriott Patches2000726208U.S.A.South DakotaPenningtonBlack Hills: Black Elk Wilderness: Willow Creek just upstream from Wilderness boundary, ca 4.0 air mi SSE of Hill City.-103.530143.88721585West of creek in drainage bottom under Picea glauca. Phenology: flowering.RMRM365394 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9797Hollis Marriott198577188U.S.A.South DakotaCusterJewel Cave National Monument: U.S. Hwy 16 just W of Hell Canyon.-103.84543.72841646Roadside. Phenology: flowering.RMRM365395 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9820Hollis Marriott1985712193U.S.A.South DakotaCusterJewel Cave National Monument: Hell Canyon near old area.-103.844643.73371600On dirt road in ponderosa pine forest; canyon bottom. Phenology: flowering.RMRM365396 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9852Hollis Marriott1985725206U.S.A.South DakotaCusterJewel Cave National Monument: S of road near east end of Visitors Center parking lot.-103.825843.731116641676Disturbed area. Phenology: flowering.RMRM365397 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9925Hollis Marriott1985819231U.S.A.South DakotaCusterJewel Cave National Monument: S of Jewel Cave Road, just E of Visitors Center parking lot near rim of Lithograph Canyon.-103.825843.73111646Grassy opening. Phenology: flowering.RMRM616238 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton358Jeb Schenk1991716197U.S.A.South DakotaCusterBlack Hills: Jewel Cave area.-103.847943.73051646Phenology: flowering.RMUSFS478316 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton238Keith Severson Chester Garrett1971713194U.S.A.South DakotaPenningtonBlack Hills National Forest: Taylor Springs Aspen Plot.-103.828944.10771951Limestone soil; with Ru[mex] st[enophyllus], Symphoriocarpus occidentalis, Splu, Poa pratensis, Agropyron, Trifolium, Lappula occidentalis, Monarda fistulosa, Ci[rsium] ar[vense], and Frov. Frequent; flowers purple. Phenology: flowering.RMUSFS478315 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton130Paul L. Ginter192887220U.S.A.South DakotaPenningtonHarney National Forest: Bacon school yard.-104.008343.91551920On 2% south slope; deep limestone loam soil; weed type. Common. Phenology: flowering.RMRM681361 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8559Robert D. Dorn200093247U.S.A.South DakotaLawrenceNear head of Little Spearfish Creek.-104.023344.256719932042Meadow with Galium boreale and Anaphalis. 44 deg 15.4'N; 104 deg 01.4'W Phenology: flowering.RMRM702693 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9047Robert D. Dorn200193246U.S.A.South DakotaPenningtonDitch Creek Road, ca 2 mi N of Sixmile Road.-103.84166743.9451951Moist hillside with Aster and Viola. Rays lavender. Phenology: flowering.RMRM92461 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton13788W. H. Over192185217U.S.A.South DakotaLawrenceWhitewood.-103.644644.46191158Hillsides. Phenology: flowering.RMRM92534 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton97W. P. Carr1913713194U.S.A.South DakotaLawrenceDeadwood.-103.728744.377513171737Rocky hillside. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1549B. A. Packer J. Brondum and T. McGowan1997710191U.S.A.WyomingAlbanyLaramie Range: ca 30 air mi NE of Rock River.-105.438242.025223012399Granite outcrop. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1857B. A. Packer J. Brondum and T. McGowan1997718199U.S.A.WyomingAlbanyLaramie Range: Tie City, ca 8.5 air mi SE of Laramie.-105.430641.25424542530Pine understory. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2160B. A. Packer J. Brondum and T. McGowan1997724205U.S.A.WyomingAlbanyLaramie Range: Castle Rock, ca 20.5 air mi SE of Douglas.-105.35242.38442216Granite soil, east facing mountain slope. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2242B. A. Packer J. Brondum, T. McGowan, and Kelly Hughes1997726207U.S.A.WyomingAlbanyLaramie Range: Kloer Creek, ca 30 air mi SW of Douglas.-105.449942.24121792201Creekside and adjacent granite outcrops. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2328B. A. Packer J. Brondum and T. McGowan1997729210U.S.A.WyomingAlbanyLaramie Range: Baldy Knob, ca 25 air mi S of Douglas.-105.332442.284121642262Granite outcrops. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2480B. A. Packer J. Brondum and T. McGowan1997730211U.S.A.WyomingConverse[location and coordinates withheld]17981899Granite outcrop. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2552B. A. Packer J. Brondum and T. McGowan1997730211U.S.A.WyomingConverseLaramie Range: along Trail Creek, ca 3 air mi SW of Esterbrook; ca 21 air mi SW of Douglas.-105.449942.35581960Granite outcrop. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2586B. A. Packer J. Brondum and T. McGowan1997731212U.S.A.WyomingAlbanyLaramie Range: unnamed branch of Roaring Fork, ca 19 air mi SW of Douglas.-105.508742.298422012219Cow pasture in aspen forest. Phenology: flowering & fruiting.RMRM525747 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2271Alan A. Beetle1937813225U.S.A.ColoradoTeller3 mi W of Divide.2439Loam under poplars. Phenology: flowering & fruiting.RMRM131606 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton11642Aven Nelson1931820232U.S.A.New MexicoSandovalLa Cueva Park: Jemez Springs.-106.636335.862992332In margins of woods. Phenology: flowering & fruiting.RMRM131607 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton11732Aven Nelson1931822234U.S.A.New MexicoSandovalSan Ysidro.-106.772335.56211676Canyon roadside. Phenology: flowering & fruiting.RMRM132021 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton140Aven Nelson Ruth A. Nelson1932729211U.S.A.ColoradoLakeFremont Pass.Roadside. Lake/Summit counties. Phenology: flowering.RMRM209657 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5772Aven Nelson Ruth A. Nelson1947821233U.S.A.ColoradoLarimerRocky Mountain National Park: along the old Fall River road.30483353Subalpine zone. Phenology: flowering & fruiting.RMRM329355 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4020B. E. Nelson1979718199U.S.A.ColoradoRouttMiddle Fork Little Snake River: ca 36 air mi NNW of Steamboat Springs; ca 35.5 air mi NNE of Hayden.-107.049140.98932141Stony, brushy slopes along the river. Phenology: flowering.RMRM329306 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4021B. E. Nelson1979718199U.S.A.ColoradoRouttMiddle Fork Little Snake River: ca 36 air mi NNW of Steamboat Springs; ca 35.5 air mi NNE of Hayden.-107.049140.98932141Stony, brushy slopes along the river. Phenology: flowering & fruiting.RMRM526942 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3709Betsy E. Neely198683215U.S.A.ColoradoLas AnimasNW of Stonewall and Hwy 12 near BM 9367: Whiskey Pass jeep road.South exposure, on rocky soils derived from sandstone with Quercus and Cercocarpus. Phenology: flowering.RMRM532436 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4513Betsy E. Neely1987812224U.S.A.ColoradoLas AnimasCulebra Range: Bar NI Ranch, Duling Park, ca 3.5 mi WNW of Stonewall Gap and Colo Hwy 12.-105.104137.16782972Danthonia parryi-Muhlenbergia montana grassland, with Poa pratensis and Juncus. Phenology: flowering.RMRM532542 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4610Betsy E. Neely1987814226U.S.A.ColoradoLas AnimasBar NI Ranch: Cherry Creek, ca 1 mi W of S end of Monument Lake.2865With Quercus, Cercocarpus, Holodiscus, Arctostaphos, Koelaria, Poa and Muhlenbergia. Phenology: flowering.RMRM540859 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5225Betsy E. Neely1988711193U.S.A.ColoradoEl PasoAiken Canyon.-104.894138.64322134Gentle east facing slopes, Fountain Formation. Phenology: flowering.RMRM616729 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton502Blaine H. M. Mooers1984820233U.S.A.ColoradoRio GrandeRio Grande National Forest: Del Norte Ranger District: above Middle Fork San Francisco Creek.2987Silt loam, 35% slope, east-southeast slope, open stand of Douglas-fir with an understory of Muhlenbergia montana. Phenology: flowering & fruiting.RMRM616665 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton685Blaine H. M. Mooers1984727209U.S.A.ColoradoSaguacheWest side of La Garita Creek.975Cobbly silt loam, 40% slope, northeast aspect, 65% bare ground, Festuca thurberi dominated area, old burn. Phenology: flowering.RMRM87169 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4346C. B. Clokey Ira W. Clokey192188220U.S.A.ColoradoGrandCamp Wheeler.2760Dry soil. Phenology: flowering & fruiting.RMRM47244 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2856C. S. Crandall189787219U.S.A.ColoradoDouglasVicinity of Pine Grove.Phenology: flowering & fruiting.RMRM22982 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton677Carl F. Baker189999252U.S.A.New MexicoRio ArribaChama-106.5789936.90372408Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton41499B. E. Nelson1997716197U.S.A.WyomingConverseLaramie Range: N of North Fork Little Medicine Bow River, ca 5 air mi W of Warbonnet Peak, ca 29-30 air mi S of Glenrock; ca 5-5.5 air mi NE of Little Medicine.-105.90242.438325212662Gravelly, rocky sagebrush slopes with rock outcrops, scattered limber pine, and occasional Douglas fir. Phenology: flowering & fruiting.RMUSFS478302 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3378ACharles Feddema1965811223U.S.A.ColoradoLarimerRoosevelt National Forest: above Cache la Poudre River, near Sleeping Elephant Campground, ca 40 mi W of Fort Collins.2530Pine slopes. Phenology: flowering.RMUSFS478320 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton495Clarence E. Taylor1922820232U.S.A.ColoradoSaguacheCochetopa National Forest: Taylor Canyon.2835Level grassland, gravelly loam. Phenology: flowering.RMRM393877 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton14675Dieter H. Wilken1986725206U.S.A.ColoradoLarimerPoudre Canyon: meadows E of State Fish Hatchery, ca 4 mi S of North Bald Mountain.2347Dry sites in meadow with Zigadenus, Festuca and Galium. Phenology: flowering.RMRM133173 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1648Earl F. Castetter1932723205U.S.A.New MexicoMoraUpper Pecos.-105.542435.95273292Phenology: flowering.RMRM128044 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton554Earl F. Castetter193186218U.S.A.New MexicoSandovalJemez Biological Camp.-106.6445935.827892134Phenology: flowering & fruiting.RMRM123144 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1323Earl L. Johnston1929826238U.S.A.ColoradoClear CreekEmpire.Phenology: flowering.RMUSFS478333 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton397Earl W. Loveridge1915720201U.S.A.New MexicoSanta FeSanta Fe National Forest: Aspen Park.-105.8299935.80192591South slope, damp humus, under aspen. Phenology: flowering & fruiting.RMUSFS478335 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton404Earl W. Loveridge1915720201U.S.A.New MexicoSanta FeSanta Fe National Forest: Aspen Park.-105.8299935.80192591South slope, damp humus, under aspen. Phenology: flowering & fruiting.RMRM70236 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10Ed C. Schneider1910U.S.A.ColoradoEl PasoPikes Peak Region.Phenology: flowering & fruiting.RMUSFS478318 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2KEverard S. Keithley1915825237U.S.A.Coloradono countyPike National Forest.2682Gravelly to sandy loam. Phenology: flowering & fruiting.RMRM34076 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton191F. E. Clements E. S. Clements190185217U.S.A.ColoradoEl PasoDark Canyon.2900Phenology: flowering.RMRM177216 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.F. E. Clements E. S. ClementsU.S.A.ColoradoEl PasoRuxton Dell.2950Photograph. Phenology: flowering.RMUSFS478332 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton137Frederic G. Renner1923720201U.S.A.New MexicoSanta FeSanta Fe National Forest: Dalton Canyon.-105.733835.67132286Gravelly loam. Phenology: flowering & fruiting.RMRM160655 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton644F. K. Vreeland1900721202U.S.A.ColoradoHuerfanoCucharas Valley: near La Veta; Echo Creek.2286Phenology: flowering & fruiting.RMRM132887 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton12442Francis Ramaley193089221U.S.A.ColoradoChaffeePoncha Pass.Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton42061B. E. Nelson1997724205U.S.A.WyomingAlbanyLaramie Range: along Esterbrook or County Road 710 between Hay Draw and Antelope Creek, ca 2 air mi NW of Sugarloaf Mountain, ca 64 air mi N of Laramie; ca 39 air mi SSW of Douglas.-105.624642.224124322530Rocky slopes and rock summit with small patches of meadow and scattered limber pine. Phenology: flowering & fruiting.RMRM47951 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5805Frank Tweedy1903715196U.S.A.ColoradoClear CreekEmpire.2591Jul 15-25 1903 Phenology: flowering & fruiting.RMUSFS478317 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton134George T. Turner1952718200U.S.A.ColoradoGunnisonGunnison National Forest: Black Mesa.2896Mountain grassland. Phenology: flowering.RMRM160654 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton233George E. Osterhout18948213U.S.A.ColoradoJacksonNorth Park.Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton42360B. E. Nelson199787219U.S.A.WyomingConverseLaramie Range: above the head of Sleepy Jack and Beaver (Aspen) creeks, ca 2.5 air mi SE of Breakneck Hill, ca 6 air mi NNE of Little Medicine; ca 27.5 air mi S of Glenrock.-105.941342.467526092695Rocky slopes, cliffs and outcrops, and summits with Douglas fir/limber pine woodland, and sagebrush draws and slopes. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton42613B. E. Nelson1997812224U.S.A.WyomingAlbanyLaramie Range: along Three Cripples Creek ca 1-1.5 air mi W of Harris Park or Forest Road 633, ca 1.5-2 air mi ESE of Esterbrook; ca 25 air mi S of Douglas.-105.332442.413116951798Open ponderosa pine forest on northerly facing slopes. Phenology: flowering & fruiting.RMRM160652 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2881Ira W. Clokey191788220U.S.A.ColoradoSummitKeystone.2743Meadow. Phenology: flowering & fruiting.RMRM92962 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2881Ira W. Clokey191788220U.S.A.ColoradoSummitKeystone.2743Meadow. Phenology: flowering & fruiting.RMRM160659 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2987Ira W. Clokey1917912255U.S.A.ColoradoGunnisonPitkin.-106.517138.60962804Aspen woods. Phenology: flowering & fruiting.RMRM93096 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2987Ira W. Clokey1917912255U.S.A.ColoradoGunnisonPitkin.-106.517138.60962804Aspen woods. Phenology: flowering & fruiting.RMRM87342 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3486Ira W. Clokey1919816228U.S.A.ColoradoEagleTennessee Pass.3048Dry hillside. Phenology: flowering & fruiting.RMRM87259 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3919Ira W. Clokey1920810223U.S.A.ColoradoClear CreekGraymont.911Dry rocky hillside. Phenology: flowering.RMRM87417 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3919Ira W. Clokey1920810223U.S.A.ColoradoClear CreekGraymont.2987Dry rocky hillside. Phenology: flowering.RMRM87415 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3920Ira W. Clokey1920811224U.S.A.ColoradoClear CreekAbove Empire.Dry soil Phenology: flowering & fruiting.RMRM87416 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3921Ira W. Clokey1920722204U.S.A.ColoradoJeffersonMorrison.1768Dry hills. Phenology: flowering.RMRM87260 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3922Ira W. Clokey1920725207U.S.A.ColoradoJeffersonEvergreen-Conifer.743Dry hillside. Phenology: flowering & fruiting.RMRM87414 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3922Ira W. Clokey1920725207U.S.A.ColoradoJeffersonEvergreen-Conifer.2439Phenology: flowering & fruiting.RMRM542404 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7744John C. Semple S. Heard198597250U.S.A.ColoradoChaffeeUS Hwy 50 W of Poncha Springs: 4.4 km E of Monarch Pass summit and 1 mi E of Monarch ski area.Rocky slope with spruce and limber mine. Phenology: flowering & fruiting.RMRM542406 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7764John C. Semple S. Heard198598251U.S.A.ColoradoGunnisonW of Crested Butte: summit of Kebler Pass.3050Open meadow. Phenology: flowering & fruiting.RMRM23318 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonA217Jennie M. Archibald1900U.S.A.ColoradoLas AnimasBerwind.-104.619537.3014Phenology: flowering.RMRM30611 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton56Kenneth K. Mackenzie19018213U.S.A.ColoradoSummitNear Breckenridge.2957Phenology: flowering & fruiting.RMRM30606 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton57Kenneth K. Mackenzie19018213U.S.A.ColoradoSummitNear Breckenridge.2957Phenology: flowering & fruiting.RMUSFS467486 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton110L. L. Feight1925726207U.S.A.New MexicoRio ArribaCarson National Forest: Canjilon District, ranger station pasture.-106.3376936.519792439Northwest slope, black sandy loam. Phenology: flowering & fruiting.RMRM97688 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton538L. M. Schedin N. T. SchedinU.S.A.ColoradoLakeNear Leadville.-106.2915539.244783079Phenology: flowering.RMRM97693 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton542L. M. Schedin N. T. SchedinU.S.A.ColoradoLakeNear Leadville.-106.2915539.244783079Phenology: flowering & fruiting.RMUSFS478327 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton125Leon C. Snyder193785217U.S.A.ColoradoFremontOff forest lands.1829Rocky soil, conifer. Phenology: flowering & fruiting.RMRM175159 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton944Marion Ownbey1935811223U.S.A.ColoradoEl PasoAspen covered northwest slope of Pikes Peak.2743Moist draw. Phenology: flowering & fruiting.RMRM131038 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4824Milo S. BakerU.S.A.ColoradoGrandNear junction of Grand and Monarch Lake.Grand/Jackson counties. Phenology: flowering & fruiting.RMRM47467 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2885no collector189988220U.S.A.ColoradoJacksonNorth Park: along the Michigan.Phenology: flowering.RMRM193997 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16887Otto Degener Leroy Peiler1942811223U.S.A.ColoradoClear CreekIdaho Springs.Open forest. Phenology: flowering & fruiting.RMUSFS477868 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton63Paul B. Lister192479191U.S.A.ColoradoConejosRio Grande National Forest: 600 feet above Alamosa Ranger Station.292615 degree south slope, sandy loam, with paintbrush. Phenology: flowering & fruiting.RMUSFS478312 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonW-28Philip V. Woodhead1928715197U.S.A.ColoradoRouttRoutt National Forest: Bears Ears District, Grazing Experiment Plot #3.2286Slight north slope, clayey loam, parks and aspen. Routt/Moffat counties. Coll. No W-28(14BE) Phenology: flowering & fruiting.RMUSFS478314 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton85-GRichard T. Guthrie1916729211U.S.A.ColoradoEl PasoPike National Forest: Bald Mountain.-105.025438.99122530West slope, moist soil, edge of timber. Phenology: flowering.RMUSFS47319 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1146Ralph K. Gierisch1939812224U.S.A.ColoradoSaguacheCochetopa National Forest: Cave Creek.10% south slope, loam, aspen. Phenology: flowering.RMUSFS478325 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1474Ralph K. Gierisch1943731212U.S.A.ColoradoSaguacheSan Isabel National Forest: North Crestone Creek.304810% south slope, sandy soil, aspen, old burn. Phenology: flowering & fruiting.RMUSFS478311 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1950Ralph K. Gierisch195781213U.S.A.ColoradoRouttRoutt National Forest: California Park.-107.119140.837723785% west slope, deep clay loam. Phenology: flowering.RMUSFS478310 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2971Ralph K. Gierisch1964815228U.S.A.ColoradoRio BlancoWhite River National Forest: Hiner Spring.-107.569239.8478304810% southeast slope, grassland. Phenology: flowering.RMUSFS478309 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2976Ralph K. Gierisch1964815228U.S.A.ColoradoGarfieldWhite River National Forest: vicinity of Triangle Park.29875-10% northwest slope, loam, grassland. Phenology: flowering.RMUSFS478338 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3156Ralph K. Gierisch1967726207U.S.A.New MexicoRio ArribaCarson National Forest: Lagunitas.-106.316536.8793317015% southeast slope, loam, grassland. Phenology: flowering.RMUSFS478318 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1421Reed C. Rollins1936722204U.S.A.ColoradoGunnisonGunnison National Forest: near Ceballa Creek, 8 mi S of Slantey's, 16 mi E of Lake City.2743Dry hillside. Phenology: flowering & fruiting.RMUSFS478339 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton148Robert F. Copple1923830242U.S.A.New MexicoTaosCarson National Forest: near mouth of Sawmill Park.-105.3722936.59443201Burn. Phenology: flowering.RMRM717909 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton11062Robert Merril King Robert M. Garvey199985217U.S.A.ColoradoEl PasoCa 5 mi W of Colorado Springs on Gold Camp Road.-104.89472238.8272222045Phenology: flowering.RMRM298284 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2235Ronald L. Hartman196872184U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: Cimarron Canyon, 2 mi NW of junction with Turkey Creek Canyon.-105.0084936.532692073Roadside. Phenology: flowering & fruiting.RMRM298282 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2331Ronald L. Hartman196878190U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: road 1 mi NE of Clarks Fork Camp.-105.0384936.477892231Meadow. Phenology: flowering.RMRM298285 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2465aRonald L. Hartman1968725207U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: North Fork Urraca Creek, 2 mi SE of Black Mountain Camp.-105.069136.430192682Along stream. Phenology: flowering.RMRM298283 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2678Ronald L. Hartman1968815228U.S.A.New MexicoColfaxPhilmont Scout Ranch, near Cimarron: Cyphers Mine.-105.1149936.484792835Partly wooded slope. Phenology: flowering & fruiting.RMRM395332 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2604Steve L. O'Kane1986818230U.S.A.ColoradoConejosCa 0.3 mi N of Terrace Reservoir.2670With Bouteloua and Muhlenbergia. Phenology: flowering & fruiting.RMUSFS478321 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton506Tibo Gallegos1922810222U.S.A.ColoradoSaguacheCochetopa National Forest: Cave Creek.3201Gentle east slope, shallow loam, grassland. Phenology: flowering.RMRM736234 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2903Tim Hogan Loraine Yeatts1995811223U.S.A.ColoradoParkMosquito Range: San Isabel National Forest: headwaters of Lynch Creek below saddle W of West Buffalo Peak.-106.118139.00643384Lower Mississipian Ordvician calcareous rocks including limestone, sandstone and dolomite, below timberline on broad open, gentle slope in fine, loose soil filling spaces in limestone talus, with Lupinus cf. caudatus, Adenolinum lewisii, Agoseris glauca. Phenology: flowering & fruiting.RMRM729894 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3391Tim Hogan1998713194U.S.A.ColoradoAlamosaSangre de Cristo Range: S Zapata Creek drainage.-105.548337.60922896Pinyon-juniper woodland, with Cercocarpus, Holodiscus and Ribes spp. Phenology: flowering.RMRM729801 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3546Tim Hogan1998821233U.S.A.ColoradoHuerfanoSan Isabel National Forest: Sangre de Cristo Range: Zapata Trail, 2 mi N of California Peak.3582East facing slopes with Festuca thurberi, Poa alpina, Luzula spicata and Sibbaldia procumbens. Phenology: flowering.RMRM734883 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3595Tim Hogan1999728209U.S.A.ColoradoSaguacheSangre de Cristo Range: Luis Maria Baca Number 4 Grant: South Spanish Creek drainage, ca 4 mi S of Crestone.2743Pinyon/juniper with scattered aspen. Phenology: flowering & fruiting.RMRM2646 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.Vasey1899U.S.A.ColoradoClear CreekEmpire.Phenology: flowering & fruiting.RMRM340206 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2195W. Baker W. Kelley and S. Siegstedt1982U.S.A.ColoradoRio BlancoCa 13 mi W of Junction of Piceance and Thirteen Mile Creeks.2195Sandy loam, with Pinus, Juniperus, Artemisia and Symphoricarpos. Phenology: flowering.RMRM346081 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton96William H. Moir1973721202U.S.A.New MexicoTaosCarson National Forest: Cabresto Creek Canyon.-105.436336.75582850Open mixed conifer forest, south facing slopes. Phenology: flowering.RMUSFS487326 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton70Walter Byron McDougall19258213U.S.A.ColoradoGrandArapaho National Forest: Gilsonite Ranger Station.3048Phenology: flowering.RMRM734266 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18791William A. Weber1993823235U.S.A.ColoradoLakeBase of east side of Independence Pass, Lake Creek Valley.Level ground along highway. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4293B. A. Packer T. McGowan1998715196U.S.A.WyomingConverseLaramie Range: along Blue Nose Creek, ca 18 air mi SW of Douglas.-105.725142.569521952225On west facing slope of grassland. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4447B. A. Packer T. McGowan1998715196U.S.A.WyomingConverseLaramie Range: along Roaring Fork, ca 25 air mi SW of Douglas.-105.84342.48225002591Along creek and adjacent boulder outcrops. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4576B. A. Packer T. McGowan and J. Brondum1998720201U.S.A.WyomingConverseLaramie Range: along Ford Creek, ca 35 air mi SW of Douglas.-105.666142.452922562286In granite outcroppings. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4633B. A. Packer T. McGowan and J. Brondum1998721202U.S.A.WyomingAlbanyLaramie Range: along Soldier Creek, ca 37 air mi S of Douglas.-105.325942.383418902012In granite outcroppings. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1169James P. Vanderhorst1990716197U.S.A.ColoradoRio Blanco[location and coordinates withheld]21952378South-exposed slopes and draw, with oak, sagebrush, rabbitbrush, and snowberry.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1775James P. Vanderhorst1990816228U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: Flat Tops Wilderness: East Marvine Creek, ca 32 air mi E of Meeker.-107.343439.97882926Spruce-fir forest with whortleberry understory and small clearings.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3060James P. Vanderhorst199173184U.S.A.ColoradoRouttFlat Tops/White River Plateau: Bear River, ca 8 air mi SW of Yampa.-107.011840.06862743Mixed forest and meadow, lodgepole pine, spruce, fir, aspen.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3273James P. Vanderhorst Carlos Palaci1991712193U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Flat Tops Wilderness: Little Trappers Lake, ca 20 air mi SW of Yampa.-107.211739.99332987South-facing meadows above lake, open lodgepole pine forest.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3288James P. Vanderhorst Carlos Palaci1991715196U.S.A.ColoradoRouttFlat Tops/White River Plateau: creek N of Colorado River NW of and near McCoy, ca 18 air mi SSE of Yampa.-106.750839.92662103Wet arroyo bottom, with cottonwood, willows, sedges, and grasses.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3362James P. Vanderhorst Carlos Palaci1991715196U.S.A.ColoradoRoutt[location and coordinates withheld]2621Cow pasture about 1/4 mi from old homestead, meadows, and aspen woods.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3410James P. Vanderhorst1991721202U.S.A.ColoradoEagleFlat Tops/White River Plateau: Deer Park, ca 7 air mi W of Burns.-107.020939.88252804Flat meadow below hill, with grasses and shrubby cinquefoil.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3480James P. Vanderhorst1991723204U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Lower Short Creek, ca 14 air mi NE of Glenwood Springs.-107.211739.7463048Meadows on hills above creek, with Festuca thurberi, snowberry, and sagebrush.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3504James P. Vanderhorst1991723204U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: north rim of Deep Creek Canyon around Balixburg Spring, ca 14 air mi NE of Glenwood Springs.-107.192939.71692865Meadows above rimrock.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3604James P. Vanderhorst1991725206U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Butler Creek, ca 18 air mi NW of Glenwood Springs.-107.757339.76052652Meadows and aspen woods with snowberry.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3727James P. Vanderhorst199184216U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: Cyclone Creek, ca 19 air mi WSW of Oak Creek.-107.298940.18642621Meadow above creek, with Veratrum, Dugaldia, and Rudbeckias.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3810James P. Vanderhorst199186218U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: South Fork White River, "Budges Resort", ca 20 air mi N of Glenwood Springs.-107.343439.83332743Meadows with grasses and forbs.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3830James P. Vanderhorst199186218U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Indian Camp Pass, ca 18 air mi N of Glenwood Springs.-107.305739.818729873048Limestone ridge above pass, rock with scattered shrubs (cinquefoil, juniper) and herbs.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton760James P. Vanderhorst199076187U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: beaver ponds on Rifle Creek, ca 18 air mi NNE of Rifle.-107.663239.77512530Meadow above ponds.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton776James P. Vanderhorst199077188U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: Lost Creek, ca 25 air mi E of Meeker.-107.455840.055223172560Meadows and sparse woods above creek, with Picea pungens, Pinus contorta, Populus tremuloides, Symphoricarpos, and Amelanchier.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton26260Ronald L. Hartman1990628179U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: New Castle-Buford Road, headwaters of Sawmill Gulch, ca 17 air mi NE of Rifle.-107.644439.731427132743Aspen groves with sagebrush meadows and disturbed areas.RMRM793205 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton38448B. E. Nelson1996711193U.S.A.WyomingCarbonSouth-central Wyoming: Muddy Mountain, ca 8.5 air mi NE of Baggs; ca 47 air mi SSW of Rawlins.22562408Mountain shrub thickets on the lee side of the butte. Phenology: flowering.RMRM793206 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton38765B. E. Nelson Beth Ward1996715197U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: Hell Canyon off Green Ridge, ca 1 air mi E of Savery Creek, ca 41 air mi S of Rawlins; ca 20 air mi NE of Baggs; ca 3.5 air mi SW of Tullis.22862347Aspen woods. Phenology: flowering.RMRM793207 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton38782B. E. Nelson Beth Ward1996715197U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: Hell Canyon off Green Ridge, ca 1 air mi E of Savery Creek, ca 41 air mi S of Rawlins; ca 20 air mi NE of Baggs; ca 3.5 air mi SW of Tullis.22862347Mountain shrub community adjacent to aspen woods. Phenology: flowering.RMRM793208 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton38816B. E. Nelson1996715197U.S.A.WyomingCarbon[location and coordinates withheld]23652390Aspen woods with scattered lodgepole pine, with orchard grass and white clover very common in the understory. Phenology: flowering.RMRM793209 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton38904B. E. Nelson1996715197U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: along a small drainage on the south side of Browns Hill or County Road 602, ca 3/4 mi E of Tullis, ca 37.5 air mi S of Rawlins; ca 23 air mi NE of Baggs.23532378Sagebrush-bitterbrush-grassland slopes and ridgetop. Phenology: flowering.RMRM793210 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton38915B. E. Nelson1996715197U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: along a small drainage on the south side of Browns Hill or County Road 602, ca 3/4 mi E of Tullis, ca 37.5 air mi S of Rawlins; ca 23 air mi NE of Baggs.23532378Sagebrush-bitterbrush-grassland slopes and ridgetop. Phenology: flowering.RMRM793211 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton39255B. E. Nelson1996721203U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: on the divide between Wild Cow and Little Savery drainages, ca 2.5-3 air mi N of Ketchum Buttes, ca 32 air mi SSW of Rawlins; ca 22.5 air mi NE of Baggs.22922353Sagebrush slopes with serviceberry thickets on the lee side of the ridge. Phenology: flowering.RMRM793244 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1026Beth Ward1996620172U.S.A.WyomingCarbonSouth-central Wyoming: draws leading from the southwest into Loco Creek drainage at the confluence of West Fork Loco and Loco creeks, ca 13 air mi ENE of Baggs.-107.437741.1357422072390Moist draw. Phenology: flowering.RMRM793245 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1176Beth Ward1996622174U.S.A.WyomingSweetwater[location and coordinates withheld]22012289Moist draw. Phenology: flowering.RMRM793246 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2484Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: southwestern lower slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.21032250Moist draw. Phenology: flowering.RMRM793247 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2485Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: southwestern lower slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.21032250Moist draw. Phenology: flowering.RMRM793248 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2538Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: southwestern lower slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.21822621Close proximity to spring. Phenology: flowering.RMRM793249 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2555Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: southwestern lower slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.21822621Close proximity to spring. Phenology: flowering.RMRM793250 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2556Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: southwestern lower slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.21822621Close proximity to spring. Phenology: flowering.RMRM793251 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2591Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: southwestern lower slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.21822621Rocky slope. Phenology: flowering.RMRM793252 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2611Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: upper slopes on west side of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.26212737Rocky slope. Phenology: flowering.RMRM793253 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2612Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: upper slopes on west side of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.26212737Rocky slope. Phenology: flowering.RMRM793254 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2681Beth Ward1996714196U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: top and south slopes of Battle Mountain, ca 8 air mi E of confluence of Savery Creek and Little Snake River; ca 18.5 air mi E of Baggs.21032774Top of mountain. Phenology: flowering.RMRM793255 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3038bBeth Ward1996721203U.S.A.WyomingCarbon[location and coordinates withheld]21792475Moist draw. Phenology: flowering.RMRM793198 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3161aBeth Ward1996724206U.S.A.WyomingCarbonSouth-central Wyoming: top and north slopes of Cow Creek Butte, ca 1 mi NW of Deep Gulch; ca 32 air mi SSW of Rawlins.23682417Aspen thicket. Phenology: flowering.RMRM793199 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3953aBeth Ward1996820233U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: northwest slopes of Battle Mountain, ca 3 air mi N of Colorado; ca 18 air mi E of Baggs.21952524Shaded aspen grove. Phenology: flowering & fruiting.RMRM793200 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4045Beth Ward1996820233U.S.A.WyomingCarbonSouth-central Wyoming: Sierra Madre: top and northeast slopes of Battle Mountain, ca 19 air mi E of Baggs.22922698Shaded draw. Phenology: flowering.RMRM960562 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1070Roger L. Williams199381213U.S.A.WyomingCarbonSierra Madre: Green Mountain, ca 7.3 air mi SW of Encampment.-106.899241.13852713Dry north slope. Very local. Phenology: flowering & fruiting.RMRM960563 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton917Roger L. Williams199083215U.S.A.WyomingCarbonMedicine Bow Mountains: North Platte River in North Gate Canyon, ca 21.7 air mi ESE of Encampment.-106.410641.08182347Open dry slope above river. Abundant. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2763Jean Wood199584216U.S.A.WashingtonStevensWestern Colville National Forest and Vicinity: Calispell Peak, ca 18 air mi ESE of Colville above Forest Road 290.-117.508448.431417072089High sagebrush balds on east and south aspects; lodgepole pine, larch, and subalpine fir. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3239Jean Wood1995810222U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: Kettle Crest Trail and Old Stage Road, ca 6 air mi N of Sherman Pass; from trailhead on Albion Hill Road.-118.471348.735916461977South aspect sagebrush balds with scattered large Douglas fir; subalpine fir/lodgepole pine forest with large 1 year-old burn areas. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3259Jean Wood1995810222U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: Kettle Crest Trail and Old Stage Road, ca 6 air mi N of Sherman Pass; from trailhead on Albion Hill Road.-118.471348.735916461977South aspect sagebrush balds with scattered large Douglas fir; subalpine fir/lodgepole pine forest with large 1 year-old burn areas. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3534Jean Wood1995816228U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: Kettle Range: Trailhead and parking area to Hall Ponds, ca 12 air mi SE of Republic; Forest Road 600 from Hall Creek on west side of Sherman Pass.-118.553448.53231402Mixed forest of ponderosa pine to subalpine fir. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6889Jean Wood Diane Pavek199683216U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: White Mountain on Kettle Crest Trail, ca 7 air mi S of Sherman Pass.-118.422748.503215542103Trail through burn (1988) and upland meadows and slopes with fellfields and talus; scattered Douglas fir and subalpine fir. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6935Jean Wood Diane Pavek199683216U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: White Mountain on Kettle Crest Trail, ca 7 air mi S of Sherman Pass.-118.422748.503215542103Trail through burn (1988) and upland meadows and slopes with fellfields and talus; scattered Douglas fir and subalpine fir. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6963Jean Wood Diane Pavek199683216U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: White Mountain on Kettle Crest Trail, ca 7 air mi S of Sherman Pass.-118.422748.503215542103Trail through burn (1988) and upland meadows and slopes with fellfields and talus; scattered Douglas fir and subalpine fir. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7177Jean Wood199685218U.S.A.WashingtonFerryWestern Colville National Forest and Vicinity: Graves Mountain, ca 16 air mi WNW of Kettle Falls.-118.379248.634212191798Mixed forest, rock outcrops, and east and south slopes of mountaintop. Phenology: flowering.RMRM296292 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1025B. E. Nelson Linda Nelson1973826238U.S.A.WyomingAlbanyMedicine Bow Mountains: 1.4 mi NW of Wyo Hwy 230 along Lake Owen Creek on the road to Albany, south end of Sheep Mountain.-106.032141.13172317In loam on a steep alope under Douglas fir with Berberis. Common. Phenology: flowering & fruiting.RMRM598952 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17116B. E. Nelson Jan Pollet1989718199U.S.A.WyomingPlatteLaramie Mountains: Cottonwood Creek above the falls, ca 23 air mi NW of Wheatland; ca 11 air mi ENE of Laramie Peak.-105.253942.31281676Stream bank and bench. Phenology: flowering.RMRM598951 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17196B. E. Nelson Jan Pollet1989718199U.S.A.WyomingPlatteLaramie Mountains: Cottonwood Creek above the falls, ca 23 air mi NW of Wheatland; ca 11 air mi ENE of Laramie Peak.-105.253942.31281676Cobblestone sandbar. Phenology: flowering.RMRM333289 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3854B. E. Nelson1979716197U.S.A.WyomingSheridanPowder River Basin: ca 6.5 air mi WNW of Parkman, ca 12 air mi NW of Dayton.-107.4705644.97581524Brushy slope. Phenology: flowering & fruiting.RMRM348584 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4291B. E. Nelson197981213U.S.A.WyomingWashakieBig Horn Mountains: ca 7.5-8 air mi ESE of Big Trails, ca 24.5-25 air mi SE of Ten Sleep, on Big Trails Stock Drive Road.-107.162243.73812195Rocky sagebrush slope. Phenology: flowering.RMRM348657 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4356B. E. Nelson197983215U.S.A.WyomingSheridanBig Horn Mountains: ca 5 air mi SE of Burgess Junction, ca 24 air mi WNW of Big Horn on Woodrock Road.-107.467844.71332560Around rock outcrops. Phenology: flowering.RMRM348583 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4569bB. E. Nelson197985217U.S.A.WyomingBig HornBig Horn Mountains: along Trout Creek in Cookstove Basin, ca 24.5 air mi NE of Lovell, ca 25 air mi NW of Burgess Junction.-107.933944.97942195Grassy slopes. Phenology: flowering & fruiting.RMRM348582 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4909B. E. Nelson197989221U.S.A.WyomingBig HornBig Horn Mountains: S of Paint Rock Lakes, ca 34 air mi ESE of Greybull, ca 12.5 air mi NE of Hyattville.-107.393144.34892713Grassy slopes. Phenology: flowering & fruiting.RMRM348656 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6526B. E. Nelson1980717199U.S.A.WyomingBig HornBig Horn Mountains: Salt Creek just off U.S. Hwy 14, ca 13 air mi ENE of Shell; ca 27.5 air mi ENE of Greybull.-107.5413944.58582408Grassy slope with scattered aspen. Phenology: flowering.RMRM348581 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6604B. E. Nelson1980717199U.S.A.WyomingBig HornBig Horn Mountains: ca 1.8 air mi SSW of Snowshoe Pass on Black Mountain Road, ca 13 air mi ESE of Shell, ca 26.5 air mi E of Greybull.-107.532244.49942682Meadows below ledges. Phenology: flowering.RMRM348580 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6686B. E. Nelson1980720202U.S.A.WyomingJohnsonBig Horn Mountains: along Clear Creek just off U.S. Hwy 16, ca 5.3 air mi WSW of Buffalo.-106.8113944.33141676Stony, dry canyon bottom. Phenology: flowering.RMRM348579 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6845B. E. Nelson198086219U.S.A.WyomingJohnsonBig Horn Mountains: in the canyon along the North Fork Crazy Woman Creek, ca 13.5 air mi SW of Buffalo.-106.871744.18642134Along the creek. Phenology: flowering & fruiting.RMRM348578 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7096B. E. Nelson Gael Fonken1980814227U.S.A.WyomingWashakieBig Horn Mountains: at the head of Tensleep Canyon on an old section of U.S. Hwy 16, ca 12.5 air mi NE of Ten Sleep.-107.2411144.14562271Sagebrush-grassland. Phenology: flowering & fruiting.RMRM296285 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton809B. E. Nelson Linda Nelson1973731212U.S.A.WyomingAlbanyMedicine Bow Mountains: 0.2 mi W of Albany on the Albany-Keystone Road.-106.138241.18182530In clay in an open meadow with Trifolium and Taraxacum. Abundant. Phenology: flowering & fruiting.RMRM348577 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8207B. E. Nelson1981715196U.S.A.WyomingWashakieBig Horn Mountains: along the Middle Fork Powder River, ca 17 air mi SE of Big Trails, ca 28 air mi SE of Tensleep.-107.142543.58032225Along the river. Phenology: flowering.RMRM296311 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton885B. E. Nelson197388220U.S.A.WyomingCarbonMedicine Bow Moountains: North Brush Creek Road, 0.2 mi from Wyo Hwy 130.-106.520241.35412347In gravelly clay along the edge of the road and in humus-loam in open lodgepole pine-aspen forest. Common. Phenology: flowering & fruiting.RMRM348576 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton779Gael Fonken B. E. Nelson1980819232U.S.A.WyomingBig HornBig Horn Mountains: head waters of Brokenback Creek, ca 14 air mi NE of Ten Sleep.-107.293144.204722591Rocky sagebrush-aspen-conifer slope. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1765Hollis Marriott Dennis Horning198282214U.S.A.WyomingWeston[location and coordinates withheld]1890Moist meadow with grazed willow thickets.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4118Hollis Marriott198377188U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: headwaters of Oak Creek, Cliff Spring, ca 3.4 air mi E of Alva.-104.366944.69861402Pine-oak-aspen forest near spring.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4236Hollis Marriott1983711192U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: summit Sheep Nose (Sheep Mountain), ca 6.5 air mi N of Sundance.-104.3697244.49391768Summit-- grassland on rocky soil with cliffs and outcrops of whitewood dolomiticlimestone.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4355Hollis Marriott1983712193U.S.A.WyomingCrook[location and coordinates withheld]1219Deciduous woods along creek.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4616Hollis Marriott1983714195U.S.A.WyomingCrookBlack Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.-104.632844.4763913411402Pine ridge with grassland understory.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4680Hollis Marriott1983718199U.S.A.WyomingWestonBlack Hills: upper Soldier Creek drainage, ca 5.2 air mi NE of Four Corners.-104.0627844.12671951Moist meadow with willows and aspen.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4769Hollis Marriott1983721202U.S.A.WyomingCrook[location and coordinates withheld]1310Deciduous thickets in north-trending draw.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4860Hollis Marriott1983721202U.S.A.WyomingCrookBlack Hills: Keyhole Reservoir, south side W of Coulter Bay, ca 10 air mi NE of Moorcroft.-104.8144.36221250Disturbed sandy soil along lake margin.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6086Hollis Marriott Dennis Horning198393246U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains, Taylor Divide near head of Lytle Creek; ca 7.2 air mi NW of Sundance.-104.46944.49361890Grassland on rocky soil, south-facing slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6089Hollis Marriott Dennis Horning198393246U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains, Taylor Divide near head of Lytle Creek; ca 7.2 air mi NW of Sundance.-104.46944.49361890Grassland on rocky soil, south-facing slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8316Hollis Marriott1984730212U.S.A.WyomingWeston[location and coordinates withheld]1493Ponderosa pine forest.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8422Hollis Marriott198482215U.S.A.WyomingWeston[location and coordinates withheld]1432Aspen stand.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8537Hollis Marriott Dennis Horning198484217U.S.A.WyomingWestonBlack Hills: Wet Parmlee Canyon near state line, ca 4.5 air mi SE of Four Corners.-104.0466744.03921798With ponderosa pine on south-facing slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8685Hollis Marriott198485218U.S.A.WyomingCrookBlack Hills: Grand Canyon near state line, ca 23 air mi SE of Sundance.-104.081144.21781859Meadow (grazed) edged with pine and aspen.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8830Hollis Marriott Dennis Horning198488221U.S.A.WyomingWestonBlack Hills: Elk Mountain area, east side near USFS Rd 818; ca 14 air mi SE of Newcastle.-104.050343.69111524Pine forest on north-west facing slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8846Hollis Marriott1984810223U.S.A.WyomingWeston[location and coordinates withheld]1783Sparse grassland on rocky soil with slabby outcrops (Minnekahta limestone).RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8949Hollis Marriott1984810223U.S.A.WyomingWeston[location and coordinates withheld]1783Aspen woods on north facing slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9091Hollis Marriott1984814227U.S.A.WyomingWeston[location and coordinates withheld]1432Canyon bottom, ponderosa pine forest.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9183Hollis Marriott1984818231U.S.A.WyomingCrookBlack Hills: Inyan Kara Mountain (east half); ca 13.5 air mi S of Sundance.-104.344744.201391615In draw east of mountain with chokecherry, hawthorne, and snowberry.RMRM333274 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8947Keith H. Dueholm1979811223U.S.A.WyomingSheridanPowder River Basin: East Twin Creek, ca 2 air mi W of Parkman.-107.368644.95891371Creek, meadows along creek, cherry thickets, sagebrush plains, hill with roadcut along side, disturbed area along drainage; hillside. Phenology: fruiting.RMRM333275 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8968Keith H. Dueholm1979811223U.S.A.WyomingSheridanPowder River Basin: ca 3.5 air mi NW of Parkman.-107.38944.99191280Hillside along road. Phenology: fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9160Keith H. Dueholm1979814226U.S.A.WyomingJohnsonBig Horn Mountains: Clear Creek and Hunter Creek, at base of Hunter Ridge, ca 0.5 mi W of Hunter Ranger Station.-106.951944.31692256Outcrops at base of ridge; along creek.RMRM348660 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10258Ronald L. Hartman1979715196U.S.A.WyomingSheridanBig Horn Mountains; Bighorn National Forest: Freeze Out Point.-107.4308344.85782530Limestone outcrops and slopes below. Phenology: flowering.RMRM334304 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10593Ronald L. Hartman197983215U.S.A.WyomingSheridanBig Horn Mountains: ca 3 air mi SSW of Dayton.-107.292844.82891341Ridge with sandy lower slopes and stream bottom, Gypsum Springs and Chugwater formations. Phenology: flowering & fruiting.RMRM348659 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10669Ronald L. Hartman197984216U.S.A.WyomingSheridanBig Horn Mountains: Red Grade Road, ca 5.2 air mi SW of Big Horn.-107.084444.624441981Slopes and ridge; Chugwater red beds and limestone (gypseous?) outcrops. Phenology: flowering & fruiting.RMRM348658 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10744Ronald L. Hartman197984216U.S.A.WyomingSheridanBig Horn Mountains: Red Grade Road: ca 7 air mi SW of Big Horn.-107.104744.624442164Limestone outcrop in meadow and adjacent forest. Phenology: flowering.RMRM330149 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10837Ronald L. Hartman197986218U.S.A.WyomingSheridanCa 4.5 air mi W of Dayton.-107.347844.87251402Sandy soil with scattered Pinus ponderosa. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16512Ronald L. Hartman1983718199U.S.A.WyomingCrookBlack Hills: Beaver Creek; ca 6.5 air mi NNW of Alva.-104.4883344.78471158Wooded creek bottoms, prairie, sandy slopes below rock outcrop, and roadside; wooded area.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17781Ronald L. Hartman1984711193U.S.A.WyomingCrookBlack Hills: Boundary Gulch, ca 6 air mi S of Beulah.-104.062244.46611310Moist stream bottom with Pinus ponderosa dominated sandy slopes; partly open snady slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17871Ronald L. Hartman1984711193U.S.A.WyomingCrookBlack Hills: Green Mountain, ca 3 air mi E of Sundance.-104.3261144.42191463Plains with outcrops of Chugwater red beds, Pinus ponderosa covered mountain slopes and summit, and moist shaded limestone canyon; partly wooded slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18136Ronald L. Hartman1984713195U.S.A.WyomingCrookBlack Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance.-104.222544.304721615Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; sandy slope.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18435Ronald L. Hartman1984717199U.S.A.WyomingCrookBlack Hills: lower slopes of Hooker Peak and plains to the NW, 7-8 air mi SSE of Sundance.-104.304444.31971554Plains, Pinus ponderosa wooded slopes, moist open drainages and stock pond; moist drainage.RMRM357701 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton19828Ronald L. Hartman198492246U.S.A.WyomingCarbonMedicine Bow Mountains: Kennaday Peak, ca 15 air mi E of Saratoga.-106.51841.452331703292Grassy and rocky slopes and ridges above treeline. Phenology: fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6306Robert D. Dorn1995725206U.S.A.WyomingPlatte18 mi NW of Wheatland.-105.254142.21241829Grassy slope, some evidence of seepage with Gaillardia, Campanula, and Geranium.RMRM598950 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton39249Ronald L. Hartman1993629180U.S.A.WyomingPlatteSouthern Powder River Basin/Southeastern Plains: Southeastern Plains: Cottonwoood Creek, ca 9 air mi SE of Esterbrook.-105.253942.312816461676Shaded ravine with narrow-leaved cottonwood and ponderosa pine. Phenology: flowering.RMRM624559 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton47763Ronald L. Hartman1994710191U.S.A.WyomingTetonGros Ventre Area: road to Goodwin Lake, ca 7 air mi E of Jackson.-110.616343.504425002621Mostly lodgepole pine cuts. Phenology: flowering.RMRM624560 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton48330Ronald L. Hartman1994727208U.S.A.WyomingTetonGros Ventre Area: Granite Creek; ca 0.3 stream mi N of Bunker Creek, then E up to summit of ridge extending S from Packsaddle Pass and Pyramid Peak.-110.449843.428223172621Steep rocky (dolomite) slope. Phenology: flowering & fruiting.RMRM624588 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton49428Ronald L. Hartman Tom Cramer1994816228U.S.A.WyomingTetonGros Ventre Area: northeast lower slope of Darwin Peak.-110.293143.399627432926Coniferous forest and streamside. Phenology: fruiting.RMRM624589 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton49884Ronald L. Hartman1994820232U.S.A.WyomingSubletteGros Ventre Area: 0.5-1 air mi N to NE of Cream Puff Peak.-110.586943.313825602865Open grassy and rocky slopes. Phenology: fruiting.RMRM372301 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1765Hollis Marriott Dennis Horning198282214U.S.A.WyomingWeston[location and coordinates withheld]1890Moist meadow with grazed willow thickets. Phenology: flowering & fruiting.RMRM372300 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1953Hollis Marriott198285217U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: Warren Peaks near old radar station; ca 6 air mi NNW of Sundance.-104.4494444.478892012Open slope with a few ponderosa pines, rocky soil. Phenology: flowering & fruiting.RMRM372299 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4118Hollis Marriott198377188U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: headwaters of Oak Creek: Cliff Spring; ca 3.5 air mi E of Alva.-104.366944.69861402Ponderosa pine-bur oak-aspen forest near spring. Phenology: flowering & fruiting.RMRM372298 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4236Hollis Marriott1983711192U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: Sheep Nose (Sheep Mountain); ca 6.5 air mi N of Sundance.-104.3697244.49391768Summit grassland on rocky soil with cliffs and outcrops of whitewood dolomitic limestone. Phenology: flowering & fruiting.RMRM372297 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4355Hollis Marriott1983712193U.S.A.WyomingCrook[location and coordinates withheld]1219Deciduous woods along creek. Phenology: flowering & fruiting.RMRM372296 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4616Hollis Marriott1983714195U.S.A.WyomingCrookBlack Hills: Miller Creek, Garman Ranch; ca 9.3 air mi SSE of Devils Tower.-104.632844.4763913411402Ponderosa pine ridge with grassland understory. ( ) From field notes. Phenology: flowering & fruiting.RMRM372295 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4680Hollis Marriott1983718199U.S.A.WyomingWestonBlack Hills: upper Soldier Creek drainage, ca 5.2 air mi NE of Four Corners.-104.0627844.12671951Moist meadow with willows and aspen. Phenology: flowering & fruiting.RMRM372294 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4769Hollis Marriott1983721202U.S.A.WyomingCrook[location and coordinates withheld]1310Deciduous thickets in north-trending draw. Phenology: flowering & fruiting.RMRM372293 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4860Hollis Marriott1983721202U.S.A.WyomingCrookBlack Hills: Keyhole Reservoir, south side W of Coulter Bay, ca 10 air mi NE of Moorcroft.-104.8144.36221250Disturbed sandy soil along lake margin. Phenology: flowering & fruiting.RMRM372292 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5053Hollis Marriott1983726207U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: Taylor Divide, ca 8.5 air mi S of Alva.-104.444344.5841615Grassland. Phenology: flowering & fruiting.RMRM372291 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5239Hollis Marriott198382214U.S.A.WyomingCrookBlack Hills: Goldie Divide near junction of Goldie and New Haven roads, ca 5 air mi NW of Hulett.-104.670344.72331371Ponderosa pine-bur oak forest, roadside. Phenology: flowering.RMRM372290 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5491Hollis Marriott198384216U.S.A.WyomingCrookBlack Hills, Coal Divide just N of I-90 (near parking area), ca 9 air mi SW of Sundance.-104.512344.32091463Ponderosa pine-bur oak forest, draw with small spring. Phenology: flowering & fruiting.RMRM372289 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5607Hollis Marriott1983822234U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: headwaters of Lame Jones Creek, ca 7 air mi S of Alva.-104.444344.59811554Ponderosa pine-bur oak forest. Phenology: flowering & fruiting.RMRM372288 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5709Hollis Marriott1983824236U.S.A.WyomingCrookBlack Hills: Houston Creek where it turns south (near Harvey Divide), ca 10 air mi W of Sundance.-104.588744.40421402Grassland, in plum-hawthorne-chokecherry thickets in draw. Phenology: flowering & fruiting.RMRM372287 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5836Hollis Marriott1983824236U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: head of Rocky Ford Creek, Government Valley Road, ca 3 air mi NNE of Sundance.-104.345744.44951554Open ponderosa pine forest with grassy understory, Minnekahta limestone; Phenology: flowering & fruiting.RMRM372286 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6086Hollis Marriott Dennis Horning198393246U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains, Taylor Divide near head of Lytle Creek; ca 7.2 air mi NW of Sundance.-104.46944.49361890Grassland on rocky soil, south-facing slope. Phenology: fruiting.RMRM372285 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6089Hollis Marriott Dennis Horning198393246U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains, Taylor Divide near head of Lytle Creek; ca 7.2 air mi NW of Sundance.-104.46944.49361890Grassland on rocky soil, south-facing slope. Phenology: fruiting.RMRM372284 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7990Hollis Marriott1984711193U.S.A.WyomingCrook[location and coordinates withheld]1676Lush meadow near creek. Phenology: flowering & fruiting.RMRM372283 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8048Hollis Marriott1984714196U.S.A.WyomingWestonBlack Hills: Summit Ridge near lookout (W of Boles Canyon), ca 7.5 air mi E of Newcastle.-104.045343.850281829Grassy opening in ponderosa pine forest on ridgetop, rocky soil (limestone). Phenology: flowering & fruiting.RMRM372282 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8316Hollis Marriott1984730212U.S.A.WyomingWeston[location and coordinates withheld]1493Ponderosa pine forest. Phenology: flowering & fruiting.RMRM372281 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8422Hollis Marriott198482215U.S.A.WyomingWeston[location and coordinates withheld]1432Aspen stand. Phenology: flowering & fruiting.RMRM372280 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8537Hollis Marriott Dennis Horning198484217U.S.A.WyomingWestonBlack Hills: Wet Parmlee Canyon near state line, ca 4.5 air mi SE of Four Corners.-104.0466744.03921798Ponderosa pine on south-facing slope. Phenology: flowering & fruiting.RMRM372279 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8685Hollis Marriott198485218U.S.A.WyomingCrookBlack Hills: Grand Canyon near state line, ca 23 air mi SE of Sundance.-104.081144.21781859Meadow (grazed) edged with ponderosa pine and aspen. Phenology: flowering & fruiting.RMRM372278 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8830Hollis Marriott Dennis Horning198488221U.S.A.WyomingWestonBlack Hills: Elk Mountain area, east side near USFS Rd 818; ca 14 air mi SE of Newcastle.-104.050343.69111524Ponderosa pine forest on northwest-facing slope. Phenology: flowering & fruiting.RMRM372277 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8846Hollis Marriott1984810223U.S.A.WyomingWeston[location and coordinates withheld]1783Sparse grassland on rocky soil with slabby outcrops (Minnekahta limestone). Phenology: fruiting.RMRM372276 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8949Hollis Marriott1984810223U.S.A.WyomingWeston[location and coordinates withheld]1783Aspen woods on north-facing slope. Phenology: flowering.RMRM372275 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9091Hollis Marriott1984814227U.S.A.WyomingWeston[location and coordinates withheld]1432Canyon bottom, ponderosa pine forest on northeast-facing slope. Phenology: flowering & fruiting.RMRM372274 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9183Hollis Marriott1984818231U.S.A.WyomingCrookBlack Hills: Inyan Kara Mountain (east half); ca 13.5 air mi S of Sundance.-104.344744.201391615In draw east of mountain with chokecherry, hawthorne, and snowberry. ( ) From field notes. Phenology: flowering & fruiting.RMRM372273 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton15915Ronald L. Hartman1983712193U.S.A.WyomingCrookBlack Hills: ca 7 air mi N of Hulett.-104.610344.784441004200Oak woodlands, sandstone rimrock and sandy lower slopes, prairies, and shaded ravines; woodland margin. Phenology: flowering.RMRM372272 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16019Ronald L. Hartman1983713194U.S.A.WyomingCrookBlack Hills: East Creek, ca 4 air mi SSW of Mona.-104.4086144.756111219Wooded drainage with ash, hawthorn, and box elder. Phenology: flowering & fruiting.RMRM372271 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16512Ronald L. Hartman1983718199U.S.A.WyomingCrookBlack Hills: Beaver Creek; ca 6.5 air mi NNW of Alva.-104.4883344.78471158Wooded creek bottoms, prairie, sandy slopes below rock outcrop, and roadside; wooded area. Phenology: flowering & fruiting.RMRM372270 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17781Ronald L. Hartman1984711193U.S.A.WyomingCrookBlack Hills: Boundary Gulch, ca 6 air mi S of Beulah.-104.062244.46611310Moist stream bottom with Pinus ponderosa dominated sandy slopes; partly open snady slope. Phenology: flowering & fruiting.RMRM372269 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17871Ronald L. Hartman1984711193U.S.A.WyomingCrookBlack Hills: Green Mountain, ca 3 air mi E of Sundance.-104.3261144.42191463Plains with outcrops of Chugwater red beds, Pinus ponderosa covered mountain slopes and summit, and moist shaded limestone canyon; partly wooded slope. Phenology: flowering & fruiting.RMRM372268 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18136Ronald L. Hartman1984713195U.S.A.WyomingCrookBlack Hills: Buckley Canyon, ca 10.5 air mi SE of Sundance.-104.222544.304721615Wooded ridge (Pinus ponderosa) with sandstone outcrops, sandy slopes, and meadow; sandy slope. Phenology: flowering & fruiting.RMRM372267 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18435Ronald L. Hartman1984717199U.S.A.WyomingCrookBlack Hills: lower slopes of Hooker Peak and plains to the NW, 7-8 air mi SSE of Sundance.-104.304444.31971554Plains, Pinus ponderosa wooded slopes, moist open drainages and stock pond; moist drainage. Phenology: flowering & fruiting.RMRM123965 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9431Aven Nelson1910719200U.S.A.WyomingWestonBoyd.-104.190144.10071722Prairies and open woods. Phenology: flowering & fruiting.RMRM7280 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.Aven Nelson1896730212U.S.A.WyomingWestonNewcastle.Phenology: flowering.RMUSFS402421 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton724Charles P. Pase1956725207U.S.A.WyomingCrookBlack Hills National Forest: "D" Ranch.1829Slope 2% north; soil silty clay; park, with Poa pratensis, Phleum pratense. Common. Phenology: flowering.RMRM257688 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2372Gerald B. Ownbey1957726207U.S.A.WyomingCrook7.5 mi NW of Hulett.Dry soil, open pine woodlands. Common. Phenology: flowering.RMRM68006 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.T. A. Williams1897726207U.S.A.WyomingCrookWelcome.Phenology: flowering & fruiting.RMRM5091 Erigeron subtrinervis Erigeron glabellusphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1502Aven Nelson1895731212U.S.A.WyomingAlbanyCummins.-106.013141.05772310Phenology: flowering.RMRM5093 Erigeron subtrinervis Erigeron glabellusphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1574Aven Nelson1895731212U.S.A.WyomingAlbanyCummins.-106.013141.05772310Phenology: flowering & fruiting.RMRM5089 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1692Aven Nelson1895817229U.S.A.WyomingAlbanyCentennial Valley.Phenology: flowering.RMRM10652 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4174Aven Nelson1897817229U.S.A.WyomingCarbonBattle Lake.-107.013341.15642804Phenology: flowering & fruiting.RMRM37293 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4239Aven Nelson1901817229U.S.A.WyomingCarbonBattle Lake Mountain.Moist slopes. Phenology: flowering & fruiting.RMRM441 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.Aven Nelson199182214U.S.A.WyomingAlbanyLaramie.Phenology: flowering & fruiting.RMRM29176 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7546Aven Nelson1900710191U.S.A.WyomingAlbanyLaramie Peak.Moist canyons. Phenology: flowering & fruiting.RMRM29083 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7653Aven Nelson1900720201U.S.A.WyomingAlbanyTie City.Sagebrush slopes. Phenology: flowering & fruiting.RMRM29084 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7653Aven Nelson1900720201U.S.A.WyomingAlbanyTie City.Sagebrush slopes. Phenology: flowering & fruiting.RMRM65355 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8808Aven Nelson190287219U.S.A.WyomingAlbanyCentennial.Moist copses. Phenology: flowering & fruiting.RMRM42056 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8809Aven Nelson190287219U.S.A.WyomingAlbanyCentennial.Dry slopes. Phenology: flowering & fruiting.RMRM79442 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9657Aven Nelson19128214U.S.A.WyomingCarbonBeaver Creek.2286Creek bottom. Phenology: flowering & fruiting.RMRM123975 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.Aven Nelson19117182U.S.A.WyomingAlbanyLaramie Hills.Phenology: flowering & fruiting.RMRM52192 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.Aven Nelson1903U.S.A.WyomingAlbanyPhenology: flowering & fruiting.RMRM311721 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.B. C. Buffum1891822234U.S.A.WyomingAlbanyEagle Rock Canyon.Phenology: flowering & fruiting.RMUSFS402423 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3191Charles Feddema196585217U.S.A.WyomingAlbanyMedicine Bow National Forest: Middle Crow Creek, ca 12 mi S[E] of Laramie.-105.41241.213225002560Along creek and adjacent slopes; in meadow with grasses partial shade. Common; rays purple lavender, disc yellow. Phenology: flowering.RMUSFS402422 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonF-15aEvan J. Williams1926730211U.S.A.WyomingCarbonMedicine Bow National Forest: Lost Park.2804Flat slope; loam; wet park. Common. Phenology: flowering.RMRM335710 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton656Francis B. Current1979813225U.S.A.WyomingCarbonBattle Mountain: top plateau, North Meadow; 8.5 air mi E Savery.2439Artemisia tridentata overstory. Phenology: flowering & fruiting.RMRM160657 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton939George E. Osterhout189675187U.S.A.WyomingCarbonNorth Park- Hilton's.Phenology: flowering & fruiting.RMUSFS408671 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonH-14H. R. Hughes1927716197U.S.A.WyomingCarbonMedicine Bow National Forest.2134Level slope; light loam; park, with everlasting, yarrow, fern, cinquefoil. Phenology: flowering.RMRM52206 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1711Leslie N. Goodding1903729210U.S.A.WyomingCarbonLittle Snake River, near Colorado.-107.298141.005220122042Phleum meadow. Phenology: flowering & fruiting.RMRM566342 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4578Neil Snow1989720201U.S.A.WyomingAlbanyDirt road leading N along east side of Sheep Mountain, ca 3 mi NNE of Woods Landing.2286Roadside in gravelly soil. Phenology: flowering.RMRM566317 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4611Neil Snow1989723204U.S.A.WyomingAlbanyCa 1 3/4 air mi W of Laramie Peak.2439Dry gravelly meadow. Phenology: flowering & fruiting.RMRM568847 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4611Neil Snow1989723204U.S.A.WyomingAlbanyCa 1 3/4 air mi W of Laramie Peak.2439Dry gravelly meadow. Phenology: flowering & fruiting.RMRM566320 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4629Neil Snow1989723204U.S.A.WyomingConverseCa 3.0 air mi WSW of Laramie Peak.2179Mixed forest of aspen and ponderosa pine. Phenology: flowering.RMRM311189 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton105Robert E. Pfadt1940730212U.S.A.WyomingConverseEsterbrook.-105.370842.41261981Mountain meadow. Phenology: flowering & fruiting.RMRM364866 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton120Roger L. Williams198577188U.S.A.WyomingCarbonSierra Madre: North Fork Willow Creek, ca 6.5 air mi SW of Encampment.-106.896341.1532591Dry sagebrush slopes. Frequent. Phenology: flowering.RMRM394714 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton330Roger L. Williams1986720201U.S.A.WyomingCarbonSierra Madre: 1 air mi SW of Encampment.-106.803741.1982225Dry gulch near creek. Frequent. Phenology: flowering.RMUSFS402418 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton19Webster B. Jones1964731213U.S.A.WyomingAlbanySheep Mountain: Fox Creek Canyon.2378Southern exposed slope. Phenology: flowering.RMRM830374 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3103Brian Elliott199873184U.S.A.ColoradoSaguache[location and coordinates withheld]2682Pinyon-juniper and riparian. Phenology: flowering.RMRM823321 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10539Robert D. Dorn2008729211U.S.A.WyomingCrookCa 9 mi SSE of Devils Tower.-104.64833344.4733331341Ponderosa pine-bur oak with Lupinus and Monarda. Flower rays lavender. Phenology: flowering.RMRMRS Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton15Hermann W. Krauch193381213U.S.A.New MexicoOteroLincoln National Forest: Cloudcroft.-105.742932.955392743Phenology: flowering & fruiting.RMRM830373 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3460Brian Elliott199876187U.S.A.ColoradoCostilla[location and coordinates withheld]3048On exposed knob above creek with Douglas fir and spruce. Phenology: flowering.RMRM830372 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3548Brian Elliott1998710191U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: W of Colo Hwy 69 on Forest Road 559, S of Westcliffe.-105.408337.84172835Mixed conifer. Phenology: flowering.RMRM830371 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4078Brian Elliott1998724205U.S.A.ColoradoCusterWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: along Forest Road 198 from Luthern Camp to Balman Reservoir, NW of Westcliffe.-105.66638.265425602865Mixed conifer and Quercus gambellii. Phenology: flowering.RMRM830370 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4471Brian Elliott1998729210U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Park Plateau: below North Lake Dam, S of Cuchara Pass on Colo Hwy 12.-105.037837.24372591Riparian and Quercus gambellii. Phenology: flowering.RMRM830369 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4525bBrian Elliott1998731212U.S.A.ColoradoFremontWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: on the Rainbow Trail from the end of Forest Road 6 to junction of Bushnell Lakes Trail, SW of Coaldale.-105.832938.320723782865Mixed conifer. Phenology: flowering.RMRM830368 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5182Brian Elliott1998810222U.S.A.ColoradoAlamosaWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: from ca 1.5 mi W of Lake Como along Holbrook Creek up to the lake, NNW of Fort Garland.-105.52537.568131703597Mixed conifer. Phenology: flowering.RMRM830367 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5218Brian Elliott1998810222U.S.A.ColoradoAlamosaWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: from ca 1.5 mi W of Lake Como along Holbrook Creek up to the lake, NNW of Fort Garland.-105.52537.568131703597Mixed conifer. Phenology: flowering.RMRM830366 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5246Brian Elliott1998810222U.S.A.ColoradoAlamosaWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: from Lake Como up to the Blue Lakes, NNW of Fort Garland.-105.504237.569435973719Picea engelmannii and alpine. Phenology: flowering.RMRM840148 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5526Ben Legler200774185U.S.A.ColoradoLas AnimasVermejo Park Ranch: ridgeline on east side of Rita Canyon in upper part of canyon, 15 air mi SW of Trinidad.-104.752611137.078111112316Rocky open ridgeline dominated by shrubby Quercus gambellii, Quercus ×undulata, and scattered Pinus ponderosa; southwest aspect. Rays light purple; stems scattered singly or in pairs; frequent. Photographed. Phenology: flowering.RMRM840147 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6052Ben Legler2007714195U.S.A.New MexicoColfaxVermejo Park Ranch: on north end of an unnamed ridge S of Gold Creek, 3.5 air km E of Underwood Lakes.-105.172361136.964388892859Mixed conifer forest of Pseudotsuga menziesii, Abies concolor, and Pinus aristata, with grassy and rocky understory. Rays light purple; occasional. Photographed. Phenology: flowering.RMRM840146 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6118BBen Legler2007717198U.S.A.New MexicoColfaxVermejo Park Ranch: meadows 1.5 air mi NNE of northernmost summit of Ash Mountain.-105.163111136.885222222787Large, gently sloping, rocky meadow with moist soil; dominated by Poa pratensis, Phleum pratense, Danthonia parryi, Iris missouriensis, scattered Pinus ponderosa and P. aristata. Rays purple; uncommon. Phenology: flowering.RMRM840145 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6377Ben Legler2007721202U.S.A.New MexicoTaosVermejo Park Ranch: Culebra Range: along road leading to Casias Lakes trailhead 1.9 air mi SE of Big Costilla Peak, on north side of an unnamed stream.-105.301583336.900722223377Sandy road bank with large boulders; under spruce-aspen forest, with Packera fendleri, Achillea millefolium, Poa spp., Arctostaphylos uva-ursi. Rays purple; frequent. Phenology: flowering.RMRM840144 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6916Ben Legler200781213U.S.A.New MexicoColfaxVermejo Park Ranch: along Rock Creek 1.8 air mi W of west end of Mary's Lake; east base of Ash Mountain.-105.136611136.847083332669Rocky road cut and road shoulder with loose sandy soil, surrounded by open forest of Pseudotsuga menziesii, Pinus flexilis, Abies concolor, shrubby Quercus gambelii. Rays pink or lavender; stems in small clumps; frequent on road cut. Phenology: flowering.RMRM830365 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5588Brian Elliott1998819231U.S.A.ColoradoCuster[location and coordinates withheld]2682Roadside. Phenology: flowering & fruiting.RMRM840143 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9618Ben Legler2008711193U.S.A.New MexicoColfaxVermejo Park Ranch: on east side of Little Vermejo Creek 0.2 air mi S of Colorado.-105.1350436.9919472629Gallery forest of Populus angustifolia; with understory of Thermopsis, Symphoricarpos, and grasses; moist soil. Ray flowers light purple, disk flowers yellow; uncommon under cottonwood. Specimen GPS: 36.991795, -105.134377. Phenology: flowering.RMRM840142 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10413Ben Legler200887220U.S.A.New MexicoColfaxVermejo Park Ranch: along east side of an unnamed ridge 2 air mi NNE of Underwood Lakes and 1/2 air mi S of Colorado.-105.19726636.9880143327East facing volcanic cliff running along ridgetop, with Picea engelmannii, Populus tremuloides, Juniperus communis, and Jamesia americana. Ray flowers light purple, disk flowers yellow; frequent on rocky slope. Specimen GPS: 36.987419, -105.197067. Phenology: flowering.RMRM917026 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton72855B. E. Nelson2007710191U.S.A.WyomingAlbanyMedicine Bow Mountains: ridge between Eagle and Beaver creeks above the Laramie River, ca 6 air mi SSW of Woods Landing; ca 31 air mi SW of Laramie.-106.059141.033524752597Shallow, narrow drainage valley with aspen, subalpine fir, and lodgepole pine. Phenology: flowering.RMRM917037 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton73016B. E. Nelson2007717198U.S.A.WyomingAlbanyMedicine Bow Mountains: ca 0.4-0.9 mi N of Colorado and 1-2 air mi E of the North Platte River on Forest Road 534, ca 40 air mi SE of Saratoga.-106.320241.011525182621Dry lodgepole forest to moist lodgepole pine/aspen forest. Phenology: flowering.RMRM917036 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton73096B. E. Nelson2007717198U.S.A.WyomingAlbanyMedicine Bow Mountains: at the head of Tepee Creek just N of Colorado, ca 43 air mi SW of Laramie.-106.289341.002326402670Open lodgepole pine forest. Phenology: flowering.RMRM917015 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1385Laura E. Lukas2007627178U.S.A.WyomingCarbonMedicine Bow Mountains: Platte River Wilderness: along Trail 506 and Douglas Creek, 1 air mi E of Pike Pole Campground, ca 44 air mi SW of Laramie; ca 29 air mi SE of Saratoga.-106.420341.13412273Rocky meadow on south-facing slope; sagebrush dominant. Phenology: flowering.RMRM917016 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3560Laura E. Lukas2007730211U.S.A.WyomingCarbonMedicine Bow Mountains: Mullen Creek, ca 1 air mi E of intersection of Forest Road 500 (French Creek Road) and Forest Road 225 (South French Creek Road), ca 26 air mi SE of Saratoga.-106.401141.23052668Dry slope between road and forest. Phenology: flowering.RMRM917010 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3917Laura E. Lukas200783215U.S.A.WyomingAlbanyMedicine Bow Mountains: Platte River Wilderness: Douglas Creek Trail, ca 39 air mi SE of Saratoga; ca 8 air mi W of Foxpark.-106.30941.07825202523Sagebrush steppe, uphill from creek. Phenology: flowering.RMRM917011 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4217Laura E. Lukas200788220U.S.A.WyomingCarbonMedicine Bow Mountains: South French Creek, just S of Forest Road 236, ca 2 air mi NE of intersection of Forest Road 225 (South French Creek Road) and Forest Road 236, ca 25 air mi SE of Saratoga and 12 air mi W of Centennial.-106.382141.27112655Open conifer forest adjacent to ponds. Phenology: flowering.RMRM917017 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4598Laura E. Lukas2007815227U.S.A.WyomingAlbanyMedicine Bow Mountains: Dry Park at intersection of Forest Road 513 (Muddy Mountain Cutoff) and Forest Road 517 (Dry Park Road), ca 1.5 air mi S of Albany and 9 air mi S of Centennial.-106.140241.16422758Park. Phenology: flowering.RMRM929381 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton76046B. E. Nelson200885218U.S.A.WyomingCarbonSierra Madre: Miner Creek and canyons and ridge to the NW, ca 1/4 below confluence of North and South forks, ca 4 air mi SSW of Encampment.-106.821541.15323322487Brushy bottom along runoff from springs. Phenology: flowering & fruiting.RMRM929380 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton76058B. E. Nelson200885218U.S.A.WyomingCarbonSierra Madre: Miner Creek and canyons and ridge to the NW, ca 1/4 below confluence of North and South forks, ca 4 air mi SSW of Encampment.-106.821541.15323322487Easterly-facing sagebrush slope. Phenology: flowering & fruiting.RMRM929379 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton76097B. E. Nelson200885218U.S.A.WyomingCarbonSierra Madre: along Copper Creek ca 1/4 air mi above North Fork Miner Creek, ca 4.5 air mi SSW of Encampment.-106.836441.152124202451Wooded northerly-facing slope above the stream. Phenology: flowering.RMRM929378 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton76120B. E. Nelson200885218U.S.A.WyomingCarbonSierra Madre: along Copper Creek ca 1/4 air mi above North Fork Miner Creek, ca 4.5 air mi SSW of Encampment.-106.836441.152124202451Wooded northerly-facing slope above the stream. Phenology: flowering & fruiting.RMRM916990 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5969Laura E. Lukas Patricia E. Lukas200879191U.S.A.WyomingCarbonMedicine Bow Mountains: Platte River Wilderness: surrounding confluence of Devils Gate Creek and Douglas Creek, ca 4 air mi SE of Trail 506 Trailhead and Pike Pole Campground, ca 17 air mi SSW of Centennial.-106.368241.11424442446Sandy meadow along creek, sagebrush and Salix common. Phenology: flowering.RMRM917035 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton6592Laura E. Lukas2008723205U.S.A.WyomingCarbonMedicine Bow Mountains: area surrounding Lincoln Park Campground, ca 4 air mi N of Ryan Park; ca 16 air mi SE of Saratoga.-106.513341.37552448Sagebrush steppe along road. Phenology: flowering.RMRM917009 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7090Laura E. Lukas2008730212U.S.A.WyomingCarbonMedicine Bow Mountains: Lime Kiln Park, SW of Forest Road 261 (Cedar Pass Road), ca 14 air mi E of Saratoga; ca 7 air mi N of Ryan Park.-106.535441.42772687Moist open conifer-aspen forest. Phenology: flowering.RMRM917008 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7119Laura E. Lukas2008730212U.S.A.WyomingCarbonMedicine Bow Mountains: Lime Kiln Park, SW of Forest Road 261 (Cedar Pass Road), ca 14 air mi E of Saratoga; ca 7 air mi N of Ryan Park.-106.535441.42772687Dry park. Phenology: flowering.RMRM917007 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7120Laura E. Lukas2008730212U.S.A.WyomingCarbonMedicine Bow Mountains: Lime Kiln Park, SW of Forest Road 261 (Cedar Pass Road), ca 14 air mi E of Saratoga; ca 7 air mi N of Ryan Park.-106.535441.42772687Dry park. Phenology: flowering.RMRM916994 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7235Laura E. Lukas2008730212U.S.A.WyomingCarbonMedicine Bow Mountains: vicinity of Pass Creek, S of intersection of Forest Road 261 (Cedar Pass Road) and Forest Road 134, ca 18 air mi E of Saratoga; ca 15 air mi SW of Arlington.-106.453341.48372550Dry west-facing hillside and road. Phenology: flowering.RMRM830358 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2083Charity Hall Brian Jacobs and Alex Morgan1998710191U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: North Fork State Wildlife Area: off of Forest Road 34 from Colo Hwy 12.-105.05637.243726522675Forest and open meadow; fine-grained soil; dominant species: aspen, oak, and ponderosa. Phenology: flowering.RMRM916993 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8031Laura E. Lukas2008813226U.S.A.WyomingAlbanyMedicine Bow Mountains: south end of Sheep Mountain, near Forest Road 311 (Fox Creek Road), ca 26 air mi SW of Laramie; ca 1 air mi N of Woods Landing.-106.031641.13092267Area between wooded creek and sagebrush hills, Populus overstory. Phenology: flowering.RMRM929386 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10022Laura E. Lukas2009713194U.S.A.WyomingCarbonMedicine Bow Mountains: W of the Platte River Wilderness, just W and SW of Elkhorn Point, ca 20 air mi SE of Encampment and ca 4 air mi N of Colorado.-106.4241.0592352Aspen grove in sagebrush hills, near rock outcrops. Phenology: flowering.RMRM929385 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10231Laura E. Lukas2009715196U.S.A.WyomingCarbonMedicine Bow Mountains: 3-3.5 mi ESE of Bennett Peak between North and South forks Corral Creek, ca 13 air mi ENE of Encampment and ca 19 air mi SE of Saratoga.-106.53941.251123492396Aspen wooded creek in sagebrush hills, many granite outcrops. Phenology: flowering & fruiting.RMRM929384 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10807Laura E. Lukas200984216U.S.A.WyomingAlbanyMedicine Bow Mountains: Jelm Mountain N of Pollock Creek, ca 16 air mi SE of Centennial and ca 25 air mi SW of Laramie.-105.980241.098527492901Sagebrush meadow with scattered pines on edge of woodland, granite soil, south aspect. Phenology: flowering.RMRM929383 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10808Laura E. Lukas200984216U.S.A.WyomingAlbanyMedicine Bow Mountains: Jelm Mountain N of Pollock Creek, ca 16 air mi SE of Centennial and ca 25 air mi SW of Laramie.-105.980241.098527492901Sagebrush meadow with scattered pines on edge of woodland, granite soil, south aspect. Phenology: flowering.RMRM929382 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton11118Laura E. Lukas2009824236U.S.A.WyomingCarbonMedicine Bow Mountains: area between Bitter and Cedar creeks, along BLM Road 3417, ca 11 air mi E of Saratoga and ca 10 air mi NW of Ryan Park.-106.584441.44942526Aspen forest in drainage surrounded by sagebrush hills. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2817Rick McNeill2008728210U.S.A.MontanaLewis and ClarkLewis and Clark National Forest: Front Range: on ridge across valley S of Deadman Hill, part of the "Nineteen Ridge", sandstone ridge on north side of main ridge, ca 4 air mi NW of South Fork Sun River Trail head-112.962747.5252076Along sandstone ridge, running NNE to SSW, southwest side burned; ridge very rocky, Pinus flexilis with scattered Juniperus communis; burned on south side, 40-60% slope. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3077Rick McNeill200885218U.S.A.MontanaMeagherLewis and Clark National Forest: Castle Mountains: along Forest Road 211, between East Fork and West Fork Checkerboard Creek, ca 5 air mi N of Castle Town.-110.668746.51292058Riparian zone and ridge in old clear cut; southeast aspect, 10-30% slope; limestone bedrock. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton88424Ronald L. Hartman2008813226U.S.A.MontanaMeagherLewis and Clark National Forest: Crazy Mountains: Trail 641, ca 1.5-3 air mi from Forest Road 66.-110.398246.21722352489Trail through coniferous forest (lodgepole pine and Picea engelmannii) with openings. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8425Rick McNeill200985217U.S.A.MontanaMeagherLewis and Clark National Forest: Little Belt Mountains: where Forest Road 119 crosses Pole Creek, ca 2.7 air mi S of Williams Mountain.-110.977546.87241916Narrow stream valley, flowing southwest, steep hill slopes, Pinus contorta, Abies lasiocarpa, and Populus tremuloides. Phenology: flowering.RMRM828762 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62477Ronald L. Hartman1998722203U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Colo Hwy 12 at Romain Canyon, ca 2.3 road mi S of Monument Lake.-105.045837.181925602591Roadside. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62479Ronald L. Hartman1998722203U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Colo Hwy 12 at Romain Canyon, ca 2.3 road mi S of Monument Lake.-105.045837.181925602591Roadside. Phenology: flowering.RMRM830363 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62747Ronald L. Hartman Jim Fowler and Jason Fowler1998724205U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Indian Creek from Indian Creek trailhead, ca 0.8 air mi NW.-105.130137.463626522682Mesic canyon with dry, sandy, volcanic outcrops to north. Phenology: flowering.RMRM830362 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62811Ronald L. Hartman1998725206U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: Bartlett Trail from base up ca 2.5 trail mi.-104.944237.874623172835Oak woodland and ponderosa pine with white fir. Phenology: flowering.RMRM830361 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton62974Ronald L. Hartman Craig Freeman1998811223U.S.A.ColoradoHuerfanoWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Culebra Range: Chaparral Trail.-105.05637.360229873109Coniferous forest and meadows. Phenology: flowering.RMRM830359 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton63925Ronald L. Hartman1998820232U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: North Rock Creek, ca 2.5 road mi E of Alder.-105.999938.362226822743Oak woodlands intermixed with grassy slopes. Phenology: flowering & fruiting.RMRM830360 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton63951Ronald L. Hartman1998820232U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Hayden Pass Creek, Forest Service boundary NE to roadside mine, toward Hayden Pass.-105.8738.279327432926Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3019Michael K. Kirkpatrick2010719200U.S.A.ColoradoEagleGore Range: White River National Forest: Fowler-Hilliard Hut, on the northeast slope of Resolution Mountain, ca 4 air mi SW of Vail Pass.-106.286539.49443506Subalpine meadow and roadside and forest edges. Phenology: flowering.RMRM218623 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17818C. Leo Hitchcock1948629181U.S.A.MontanaPowell3 mi E of Ovando.Dry open ground. Phenology: flowering.RMUSFS478308 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton122H. M. Crane1915813225U.S.A.MontanaAbsaroka National Forest.1890Bottom; rich loam soil. Phenology: flowering.RMUSFS478307 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton43E. F. Schlatterer1962810222U.S.A.MontanaMadisonBeaverhead National Forest: Gravelly Range - Call Road.-111.812245.13852225Slope 4%, southwest exposure; silt loam soil; associated with Festuca idahoensis, Geum triflorum, Danthonia intermedia. Phenology: flowering.RMUSFS478306 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton28Barry C. Park192781213U.S.A.MontanaJefferson National Forest: Sourdough.1707Southwest slope; sandy soil. Common. Phenology: flowering.RMRM68422 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Brittons.n.Tom A. Williams1897810222U.S.A.MontanaBear Lodge Mountains.Phenology: flowering & fruiting.RMRM205906 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton14420C. Leo Hitchcock C. V. Muhlick194676187U.S.A.MontanaGraniteRock Creek Canyon: Eagle Creek.-113.741246.4349Phenology: flowering.RMRM202777 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton13630C. Leo Hitchcock1945815227U.S.A.MontanaMeagherLittle Belt Mountains: 3 mi S of Kings Hill.Meadowland. Phenology: flowering & fruiting.RMUSFS478305 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonR-11H. R. Richards1921729210U.S.A.MontanaMissoula National Forest.1981Clay rock loam. Phenology: flowering.RMRM830920 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8764aBrian Elliott Elizabeth Mark and Pete Schneider1999710191U.S.A.ColoradoCostilla[location and coordinates withheld]2682Artemisia tridentata with stands of Populus tremuloides and Pinus ponderosa. Phenology: flowering.RMRM830384 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9054Brian Elliott Elizabeth Mark and Kenneth Elliott1999718199U.S.A.ColoradoChaffeeWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: San Isabel National Forest: north face of Methodist Mountain on Forest Road 108.-105.997838.47422835Pinus ponderosa and Pinus edulis. Phenology: flowering.RMRM830383 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9255Brian Elliott Elizabeth Mark1999722203U.S.A.ColoradoCusterWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: San Isabel National Forest: from Alvarado Campground up the Rainbow Trail to the Venable Peak Trail, ca 6 air mi SW of Westcliffe.-105.566438.07892804Abies concolor and Pinus ponderosa with Quercus gambellii. Phenology: flowering.RMRM830382 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9534Brian Elliott Elizabeth Mark1999725206U.S.A.ColoradoAlamosaWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Rio Grande National Forest: Zapata Falls to ca 1 mi E, ca 9 air mi S of the entrance to Great Sand Dunes National Monument.-105.531437.60932865Pseudotsuga menziesii and Pinus edulis. Phenology: flowering.RMRM830381 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9706Brian Elliott Elizabeth Mark1999726207U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: Rio Grande National Forest: ca 1.5 mi along Willow Lake Trail, ca 2 air mi E of Crestone.-105.663437.98972804Abies concolor, Pseudotsuga menziesii. Phenology: flowering.RMRM831017 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9996Brian Elliott Elizabeth Mark and Pete Schneider1999728209U.S.A.ColoradoLas Animas[location and coordinates withheld]2682Pinus ponderosa, Quercus gambellii. Phenology: flowering.RMRM816018 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton380Cynthia Villa2001727208U.S.A.ColoradoGrandBlue Valley Ranch: E of Carpenter Homestead.2533Adjacent to old fields in aspen riparian area with northwest aspect. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton474Cynthia Villa200184216U.S.A.ColoradoGrandBlue Valley Ranch: south of Lone Pine Junction.8707Sagebrush steppe in loam with east aspect. Phenology: flowering.RMRM816019 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton380Cynthia Villa2001727208U.S.A.ColoradoGrandBlue Valley Ranch: E of Carpenter Homestead.2533Adjacent to old fields in aspen riparian area with northwest aspect. Phenology: flowering.RMRM816020 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton380Cynthia Villa2001727208U.S.A.ColoradoGrandBlue Valley Ranch: E of Carpenter Homestead.2533Adjacent to old fields in aspen riparian area with northwest aspect. Phenology: flowering.RMRM830380 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65308Ronald L. Hartman1999729210U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Little Fishers Peak Mesa, 0.7 air mi NE of Lake Maloya.-104.366737.010723172621Steep slope of mesa with tall vegetation. Phenology: flowering.RMRM830379 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65600Ronald L. Hartman1999731212U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Cochetopa Hills: Rio Grande National Forest: Soda Spring Gulch, County Road LL56, ca 7 air mi WSW of Villa Grove.-106.074138.22426212865Igneous outcrops and adjacent grassland. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9533Lori E. Brummer201277189U.S.A.ColoradoMesaUncompahgre Plateau: Uncompahgre National Forest: Dominguez Ridge, just off of Brushy Ridge Trail or Forest Road 409, ca 30 air mi WSW of Delta.-108.609438.624627642768Gambel oak mixed mountain shrub community. Phenology: flowering.RMRM830378 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65788Ronald L. Hartman199983215U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Cochetopa Hills: Rio Grande National Forest: County Road NN56, 5.5 air mi NW of Villa Grove.-106.03738.279326522743Rocky open and eroded slopes. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton10095Lori E. Brummer2012719201U.S.A.ColoradoMesaGrand Mesa: Grand Mesa National Forest: Crag Crest Trail, high point of trail, ca 3.5 trail mi from west trailhead, to ca 1.5 trail mi ENE of trailhead, ca 11 air mi NNW of Cedaredge.-107.94639.060433173399Rocky subalpine slope. Mesa and Delta county. Phenology: flowering.RMRM830377 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65885Ronald L. Hartman199984216U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Cochetopa Hills: Colo Hwy 114, 1 road mi NW of Buffalo Pass Campground.-106.536538.200429873048Igneous outcrop and ponderosa pine forest. Phenology: flowering.RMRM830376 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton65918Ronald L. Hartman199984216U.S.A.ColoradoSaguacheWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Cochetopa Hills: Colo Hwy 114, 1 road mi NW of Buffalo Pass Campground.-106.536538.200429873048Igneous outcrop and ponderosa pine forest. Phenology: flowering.RMRM830921 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton66151Ronald L. Hartman1999818230U.S.A.ColoradoChaffeeWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Sangre de Cristo Range: San Isabel National Forest: Forest Road 104, 4 air mi S of Salida on jeep trail to top of Methodist Mountain.-105.997838.474226522804Grassy slope with Neoparrya lithophila fairly common for the previous 400-500 vertical ft, often greening abundantly in understory of Pinus ponderosa. Phenology: fruiting.RMRM830375 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton66320Ronald L. Hartman1999820232U.S.A.ColoradoLas AnimasWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Spanish Peaks: Apishapa Arch and N along dike, back via road.-105.001637.345630793164Coniferous forest. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2428Joshua J. Irwin Craig Scott2010719200U.S.A.IdahoCusterChallis National Forest: Salmon River Mountains: along the Yankee Fork Salmon River 0.2 mi S of Flat Rock Campground, 11.9 air mi ENE of Stanley.-114.7203744.289011850Well developed soil in mesic lodgepole pine vegetation; 0° slope; granodiorite geology. 1-25 individuals apparent. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton7401Joshua J. Irwin Ben Legler201185217U.S.AIdahoCusterChallis National Forest: Eastern Boulder Mountains: valley of the North Fork Big Lost River, between Slide and Corral canyons, 16.5 air mi NNE of Sun Valley.-114.2728443.929632274<25 plants estimated in mesic soil within woody riparian vegetation, no slope, shale geology. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton90290Ronald L. Hartman2010725206U.S.A.IdahoLemhiSalmon National Forest: Beaverhead Mountains: Forest Road 187, Lewis and Clark Backcountry Byway, at Agency Creek, 1.5 air mi W of Lemhi Pass.-113.481844.97317981981Streamside with disturbed areas and adjacent Douglas fir forest and meadow. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton90500Ronald L. Hartman2010727208U.S.A.IdahoLemhiSalmon National Forest: Lemhi Range: Hayden Creek Road to Mill Creek (Forest Road 010), between Apple and Little Sawmill creeks, ca 16 air mi W of Leadore.-113.660744.76772378Dry ridge and rock outcrop. Phenology: flowering.RMRM960113 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1692Roger L. Williams201375186U.S.A.WyomingCarbonSierra Madre: Bottle Creek Ski Trail, ca 6.3 air mi WSW of Encampment.-106.90641.1762682Mixed dry forest. Few plants. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton91825Ronald L. Hartman2011812224U.S.A.IdahoCusterChallis National Forest: Southern Salmon River Mountains: Yankee Fork Road at Tenmile Creek then NW ca 0.5-1 air mi, ca 5-5.5 air mi W of Mill Creek Summmit.-114.60048344.47596723932396Lake margins and bottoms, slide lake ca 1 mi long.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8118Emma E. Freeland2013810222U.S.A.MontanaMadisonHorn Mountains: Cliff Lake, the inlet at Horn Creek, NE of Antelope Prong, ca 5 air mi SW of junction of Mont Hwy 87 and U.S. Hwy 287.-111.536344.76191975Sagebrush grasslands. Phenology: flowering.RMRM537900 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton12974bB. E. Nelson1985819231U.S.A.WyomingParkNorthern Absarokas: red ridge between Paint and Blaine creeks on County Road 7RO, ca 5 air mi N of Pat O'Hara Mountain, ca 18.5 air mi NW of Cody.-109.2902844.730561920Thickets of Physocarpus on redbeds topped with gypsum. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1654Lori E. Brummer201086218U.S.A.ColoradoMesaGrand Mesa: Grand Mesa National Forest: Lands End near Bolen Reservoir, ca 20 air mi ESE of Grand Junction.-108.212439.016329873037Upland area under spruce next to small creek. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1663Lori E. Brummer201086218U.S.A.ColoradoMesaGrand Mesa: Grand Mesa National Forest: Lands End near Bolen Reservoir, ca 20 air mi ESE of Grand Junction.-108.212439.016329873037Rocky mesa top with basalt boulders. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4983Lori E. Brummer2011710191U.S.A.ColoradoMesaGrand Mesa National Forest: Ruth Mountain Area: along Owens Creek and Forest Road 268, ca 5.7 road mi ENE of County Road 265, ca 25 air mi SSE of Rifle.-107.610139.2462530Montane meadow with sagebrush and snowberry. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5556Lori E. Brummer Kim Hansen, Linda Deeds2011718199U.S.A.ColoradoMesaUncompahgre Plateau: Long Point, S and W of Long Point Mountain, off Forest Road 421, just off of Divide Road (Forest Road 402), ca 32 air mi SSW of Delta.-108.6053338.5449427622804Moist aspen woodland. Phenology: flowering.RMRM799902 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton18742Henk van der Werff2004727209U.S.A.New MexicoTaosHidden Valley, 20 miles E of Taos.2439Open forest with aspens and pine trees. Erect perennial herb. Ray flowers lavender.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2323Crista L. O'Conner2016713195U.S.A.IdahoClearwaterBitterroot Mountains: North Fork Clearwater River: North Fork Headwater Trail 373, spanning ca 6-9 air mi W of Montana. Collection extent includes from Trail Head to confluence of Meadow Creek, ca 3.5-4 mi.-115.074346.874611281280Predominately southwesterly-facing slopes and draws with heterogeneous communities of Abies lasiocarpa, Picea engelmannii, Pinus contorta, Pseudotsuga menziesii and, to a lesser degree, Thuja plicata. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3031Crista L. O'Conner2016726208U.S.A.IdahoClearwaterClearwater Mountains: Cayuse Creek, nearby Cayuse landing strip, along Forest Trail 534, ca 3.5 air mi SE of Scurvy Mountain.-115.066646.667310821114Mesic-moist riparian bench with abundant Thuja plicata. Phenology: flowering.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton1463bCrista L. O'Conner2016623175U.S.A.IdahoClearwaterClearwater Mountains: North Fork Clearwater River at Canyon Work Center, along rocky riparian confluence of Grasshopper Creek and river, ca 3 air mi SW of Black Mountain and ca 26 air mi NNE of Pierce.-115.583446.8365536Confluence highly influenced by seasonal high-water line, as evidenced by a series of pools near the mouth of the creek. Phenology: flowering & fruiting.RMRM613361 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton16993Walter Fertig George Jones199687220U.S.A.WyomingSheridanBig Horn Mountains: Boyd Ridge W of Hidden Spring on Boyd Ridge Road, ca 2 mi N of Leaky Mountain on ridge on east side of Dark Canyon.-107.713244.93282439Meadow of Stipa nelsonii, Elymus trachycaulus and Poa secunda with scattered Potentilla fruticosa at edge of Picea engelmannii/Pinus flexilis forest on limey humus soil with scattered limey gravel. Phenology: flowering & fruiting.RMRM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonRMUSFS402420 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton256Richard M. Hurd1951830242U.S.A.WyomingSheridanBighorn National Forest: Tongue District: Shreve Pasture.2500East 5% slope; clay loam (limestone); park, with Agropyron spp. Hesperochloa kingii, Festuca idahoensis. Sporadic Phenology: flowering & fruiting.RMUSFS402419 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonEP2-18Philip V. Woodhead192489222U.S.A.WyomingSheridanBighorn National Forest: Experimental plot no. 2.Phenology: flowering.RMRM37325 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton8538Aven Nelson1901729210U.S.A.WyomingSheridanDome Lake Grade.Phenology: flowering.RMRM37138 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton316Leslie N. Goodding1901719200U.S.A.WyomingWashakieHead of Middle Fork Powder River.-107.235443.5181North slopes. Phenology: flowering.RMRM227286 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton256Richard M. Hurd1951830242U.S.A.WyomingSheridanBighorn National Forest: Tongue District: Shreve Pasture.2500East 5% slope; clay loam (limestone); park, with Agropyron spp. Hesperochloa kingii, Festuca idahoensis. Phenology: flowering & fruiting.RMRM348575 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton9160Keith H. Dueholm1979814226U.S.A.WyomingJohnsonBig Horn Mountains: Clear Creek and Hunter Creek, at base of Hunter Ridge, ca 0.5 mi W of Hunter Ranger Station.-106.951944.31692256Outcrops at base of ridge; along creek. Phenology: flowering & fruiting.RMRM295501 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3142Ronald L. Hartman197172183U.S.A.WyomingConverseCa 5 mi W of Esterbrook.-105.430342.38441951Along stream. Common. Phenology: buds.RMRM632884 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17764Walter Fertig Laura Welp1997724205U.S.A.WyomingWashakieWest Slope Big Horn Range: Tensleep Creek, ca 1.3 mi NE of the Tensleep Fish Hatchery; ca 7 mi NE to Ten Sleep on the south side of U.S. Hwy 16.-107.279544.09841780Moist meadow along side stream of creek dominated by Agrostis stolonifera, Carex aquatilis, Elymus glaucus, and scattered Populus tremuloides. Phenology: flowering & fruiting.RMRM632880 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton17723Walter Fertig Laura Welp1997721202U.S.A.WyomingJohnsonBig Horn Range: North Fork Crazy Woman Creek, canyon at southeast end of Crazy Woman Mountain in vicinity of bridge crossing Crazy Woman Creek, ca 2 3/4 mi E of U.S. Hwy 16.-106.851444.18761951Edge of sand-gravel roadside dominated by Bromus inermis and Melilotus officinalis bordering south-facing granitic talus or streamside conifer woods. Phenology: flowering & fruiting.RMRM603131 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton14480Walter Fertig Ann Humphrey and Phil Shephard1993824236U.S.A.WyomingWashakieFoothills of West Slope Big Horn Mountains: Margarite Mesa on south side of Tolman Road, ca 1 mi N of Canyon Creek (TNC Ten Sleep Preserve).-107.2644.02542097Shady Douglas fir/aspen forest on sandstone/gravel substrate adjacent to road. Phenology: fruiting.RMRM603133 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton14498Walter Fertig Ann Humphrey and Phil Shephard1993825237U.S.A.WyomingWashakieWest Slope Big Horn Mountains: plateau on east side of Canyon Creek Canyon, due E of Canyon Creek Sinks and 3/4 mi N of confluence of Onion Gulch and Canyon Creek. (TNC Ten Sleep Preserve).2301Artemisia tridentata var. vaseyana grassland at edge of woods of Populus tremuloides and Pinus contorta on deep, limey soils. Phenology: fruiting.RMRM38417 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and BrittonFrank Tweedy1900720201U.S.A.WyomingJohnsonEastern Slope Big Horn Mountains: headwaters of Clear Creek and Crazy Woman River.-106.95244.217221342743Phenology: flowering.RMRM69448 Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton342Vie Willits1909724205U.S.A.WyomingSheridanWest Hurlburt Creek.-107.060844.643914631707Brushy gulches in foothills. Phenology: flowering & fruiting.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2124Timothy W. Chumley1995721202U.S.A.ColoradoTellerEast-central Colorado: Mosquito Range to Plains: Rampart Range: USFS Woodland Park Work Center, 1400 Rampart Range Road or County Road 22, ca 2 road mi N of intersection with U.S. Hwy 24, ca 2 air mi N of Woodland Park.-105.045139.020225672609In a sandy-gravelly wash in ponderosa pine forest. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2313Timothy W. Chumley1995723204U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: off Forest Road 101 or Crow Gulch Road along a ridge above the road, and along a drainage of Deer Creek, ca 1.2 air mi S of Highland Park; ca 5.6 air mi NW of Bailey. C1/2-105.542639.484127682926On and around granite outcrops in lodgepole pine and aspen. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2502Timothy W. Chumley1995731212U.S.A.ColoradoTellerEast-central Colorado: Mosquito Range to Plains: Front Range: off Gold Camp or County Road 8 or Forest Road 370, ca 5 road mi E of intersection with County Road 81, at forest boundary, ca 7.1 air mi ESE of Cripple Creek.-105.045138.730828653292On open, grassy south-facing slopes. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton2845Timothy W. Chumley199588220U.S.A.ColoradoDouglasEast-central Colorado: Mosquito Range to Plains: Rampart Range: along Fern Creek and surrounding uplands, approx 0.2 road mi from intersection with Forest Road 351 or Fern Creek Road, ca 12 air mi N of Woodland Park. EC1/4-105.082639.164224392743Open grassy flats along the stream. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton3228Timothy W. Chumley1995818230U.S.A.ColoradoParkEast-central Colorado: Mosquito Range to Plains: Platte River Mountains: Hall Valley along the North Fork of the South Platte River and adjacent slopes, ca 4.7 air mi NW of Webster.-105.820439.484128043390Roadside. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4523Timothy W. Chumley1996714196U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: East Gulch: along East Gulch and surrounding slopes and ridges, at end of County Road 27, ca 5.2 air mi N of town of Texas Creek. C1/2-105.578538.468921952560Along a small, shaded running strean in pinyon-juniper with occasional ponderosa pine and Douglas fir. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton4759Timothy W. Chumley1996719201U.S.A.ColoradoDouglasEast-central Colorado: Mosquito Range to Plains: Rampart Range: Stevens Gulch: at head of gulch and ridges to E off Forest Road 512, ca 1 air mi N of U.S.FS Indian Creek Work Center, ca 4.3 air mi ESE of town of South Platte.-105.101239.395922432457In Douglas fir forest with fine soils on north and east-facing slopes. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5180Timothy W. Chumley Irene Thien1996728210U.S.A.ColoradoFremontEast-central Colorado: Mosquito Range to Plains: Arkansas River Drainage: Cable Gulch: off Forest Road 174, ca 12.4 air mi NE of Salida.-105.654138.685828042896In ponderosa pine forest on gently rolling hills with fine volcanic soils. Phenology: flowering.RM Erigeron subtrinervisphysical specimenAsteraceaeErigeronsubtrinervisRydb. ex Porter and Britton5345Timothy W. Chumley1996730212U.S.A.ColoradoTellerEast-central Colorado: Mosquito Range to Plains: Rampart Range: off Forest Road 341A ca 0.2 air mi N of intersection with Forest Road 341 or County Road 782, ca 7.3 air mi NW of Woodland Park.-105.137739.07824632585Along a moist drainage in grassy ponderosa pine forest with granitic-gravelly soils. Phenology: flowering.36003,1,0true