: 1.21 $2024-03-28T14:24:34-7:0054.81.33.119searchRMRM912023 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller40190Erwin F. Evert2003629180U.S.A.WyomingParkYellowstone Plateau: Yellowstone National Park: Artists Paint Pots thermal area, ca 4 mi SW of Norris Junction.-110.737944.69272256On sinter with Dichanthelium acuminatum, Pteridium aquilinum var. latiusculum, and Vaccinium cespitosum. Phenology: vegetative only.RMRM788552 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller32339Erwin F. Evert1996727209U.S.A.WyomingTetonTeton Range: Grand Teton National Park: along Trapper Lake inlet stream.-110.724343.83452115Spruce forest just north of lake with Calamagrostis canadensis, Platanthera dilatata, and Arnica mollis. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller59528B. E. Nelson2003717198U.S.A.ColoradoLa PlataEastern San Juan Mountains: N of Vallecito Reservoir on the west slope of Middle Mountain along Forest Road 724, N and S of Berri Creek, ca 16.5 air mi N of Bayfield.-107.537937.461925122609Along moist, rocky channel in aspen/white fir forest.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1520Jeanette Flaig2003724205U.S.A.ColoradoMineralEastern San Juan Mountains: San Juan National Forest: Fourmile Trail, ca 11 air mi N of Pagosa Springs.-107.05337.409127983410Spruce, fir, and aspen forest by stream. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2736Jeanette Flaig2003816228U.S.A.ColoradoArchuletaEastern San Juan Mountains: San Juan National Forest: U.S. Hwy 160 W to Forest Road 620 then ca 4 road mi NNW; ca 21 air mi W of Pagosa Springs. Central-107.379737.26842185Roadside and grazed opening in ponderosa pine forest. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2918Jeanette Flaig2003819231U.S.A.ColoradoArchuletaEastern San Juan Mountains: San Juan National Forest: Coal Creek Trailhead: U.S. Hwy 160 W to Fawn Gulch Road; ca 6 air mi E of Pagosa Springs.-106.87537.323426022661Douglas fir, ponderosa pine and aspen forest with Quercus understory. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller62344B. 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: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller62458B. 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: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller62562B. E. Nelson2004815228U.S.A.ColoradoArchuletaEastern San Juan Mountains: Opal Lake and vicinity, ca 1.5 air mi SW of Flattop Mountain, ca 15 air mi ESE of Pagosa Springs.-106.749737.195528042817In and at the edge of spruce/aspen forest. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller62667B. E. Nelson2004815228U.S.A.ColoradoArchuletaEastern San Juan Mountains: northeast end of Mesa Cortado, S of U.S. Hwy 84, ca 17.5-18 air mi SE of Pagosa Springs.-106.850537.072723782530Douglas fir/white fir/aspen on lower slopes. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller62865B. E. Nelson2004818231U.S.A.ColoradoArchuletaEastern San Juan Mountains: along Forest Road 537 at and just below junction with Forest Road 756 along a tributary of Spring Creek, ca 10 air mi NE of Ignacio; ca 7 air mi ESE of Bayfield.-107.477537.191225762637Brushy thickets. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller3775Jeanette Flaig200469161U.S.A.ColoradoArchuletaEastern San Juan Mountains: San Juan National Forest: along Forest Road 663, ca 2 air mi SW of V Rock, ca 15 air mi SE of Pagosa Springs.-106.820437.10682661Oak woodland. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller5051Jeanette Flaig2004628180U.S.A.ColoradoArchuletaEastern San Juan Mountains: San Juan National Forest: Forest Road 135, E of Rocky Canyon, ca 12 air mi NE of Bayfield.-107.450937.33142797Dense mixed conifer and aspen forest. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller7540Jeanette Flaig200488221U.S.A.ColoradoHinsdaleEastern San Juan Mountains: San Juan National Forest: Weminuche Wilderness: Pine Creek Trail, Los Pinos River.-107.450737.47424582517Seep. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller79714Ronald 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: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller5327Erin Foley2003818230U.S.A.ColoradoClear CreekArapaho National Forest: Front Range: Mount Evans Wilderness Trail: Lost Creek, ca 9.5 air mi S of Idaho Springs.-105.521939.603326822768Rocky slopes. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller10290Erin Foley2004718200U.S.A.ColoradoGrandArapaho National Forest: Indian Peaks Wilderness: Front Range: Roaring Fork SW of Hiamovi Mountain, ca 9 air mi SE of Grand Lake and ca 13 air mi ENE of Granby.-105.728640.153831093628Along fork. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller12090Erin Foley2004825238U.S.A.ColoradoGrandArapaho National Forest: Indian Peaks Wilderness: Front Range: Buchanan Creek, ca 15 air mi ENE of Granby and ca 9 air mi WNW of Ward.-105.677540.122628653109Along Creek Phenology: vegetative only.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2154Emily A. Holt2000713195U.S.A.ColoradoEagleCentral Colorado: Gore Range, West Slope Continental Divide: Big Horn Creek area, on Forest Service Trail 2013, ca 4 air mi E of Vail.-106.296539.645626213231Aspen to spruce-fir to montane meadow/scree. Phenology: spores.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller3454Emily A. Holt Brian Elliott200086219U.S.A.ColoradoEagleCentral Colorado: Sawatch Range, West Slope Continental Divide: along East Lake Creek Trail 1880, ca 5 air mi S of Edwards.-106.561239.556325002865Aspen woodland. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller6944Emily A. Holt2001718199U.S.A.ColoradoEagleCentral Colorado: Sawatch Range, West Slope Continental Divide: along Reudi Trail at west end of reservoir, to second powerline crossing from trailhead, ca 11.5 air mi E of Basalt.-106.813339.372424392621Dense aspen woodland with interspersed lodgepole. Phenology: vegetative only.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller7896Emily A. Holt2001814226U.S.A.ColoradoEagleCentral Colorado: Gore Range, West Slope Continental Divide: along Gore Creek Trail 2015, from Wilderness sign E ca 2.5 mi, ca 7 air mi E of Vail.-106.258939.631227433048Mixed forest with aspen, lodgepole, spruce-fir and Douglas Fir. Phenology: vegetative only.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1737Nancy Kastning1989620171U.S.A.ColoradoJacksonSierra Madre/Park Ranges: Park Range: ca 23 air mi NW of Walden by Big Creek Falls.27742865In shady places.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2322Nancy Kastning Diane Fraser1989718199U.S.A.ColoradoRouttSierra Madre/Park Ranges: Park Range: ca 22 air mi NW of Kremmling by Service Creek.26212795Lodgepole pine forest.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller17611B. E. Nelson Steven Nelson198983215U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: along Service Creek ca 4 air mi above the Yampa River, ca 15.5 air mi SSE of Steamboat Springs.-106.743940.27482560Low wet area along stream.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller17786B. E. Nelson Michelle Nelson198986218U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: Routt National Forest: Dry Lake above Soda Creek, ca 4.5 air mi NE of Steamboat Springs.-106.778640.5362500Open aspen woods.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1737Nancy Kastning Heather and Joel Kastning1989620171U.S.A.ColoradoJacksonSierra Madre\Park Range: Park Range: ca 23 air mi NW of Walden by Big Creek Falls.-106.647940.908427742865In shady places.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2322Nancy Kastning Diane Fraser1989718199U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: ca 22 air mi NW of Kremmling by Service Creek.-106.686540.260126212795Lodgepole pine forest.RMRM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller4825Neil Snow198983215U.S.A.ColoradoRouttSierra Madre\Park Range: Park Range: vicinity of Mad Creek Trail, ca 7 air mi NNW of Steamboat Springs.-106.873240.579121032530Near trail.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller6479Lynn Marie Moore199578189U.S.A.ColoradoMontezumaUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: Forest Trail 607, S of Colo. HWY 145, ca 16 air mi NE of Dolores on Morrison Trail, Bear Creek Drainage.-108.204737.566924392926Spruce, aspen, douglas fir, boxelder, and snowberry in a north facing canyon and drainage. Phenology: vegetative only.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller8275Lynn Marie Moore Sierra Smith199581213U.S.A.ColoradoDoloresUpper Dolores River Drainage and Adjacent Areas: San Juan National Forest: ca 5 air mi NW of Rico along Geyser Creek Trail, Forest Trail 648.-108.113937.757126212804Aspen, spruce, snowberry, larkspur, and riparian area along creek and natural geyser, northwest face. Phenology: vegetative only.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1737Nancy Kastning1989620171U.S.A.ColoradoJacksonSierra Madre/Park Ranges: Park Range: ca 23 air mi NW of Walden by Big Creek Falls.27742865In shady places.RMRM771842 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller3061Sarah Nunn2001720201U.S.A.ColoradoLarimerRoosevelt National Forest: Medicine Bow Mountains: Rawah Wilderness: from trailhead on Laramie River Road (County Road 103), ca 42 air mi NW of Fort Collins.-105.905240.736326822865Lodgepole pine forest with Vaccinium and Mahonia understory and intermittent streams; east facing slope. Phenology: spores.RMRM771841 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller5242Sarah Nunn2001915258U.S.A.ColoradoLarimerRoosevelt National Forest: Medicine Bow Mountains: Rawah Wilderness: Link Trail from MacIntyre/Link Trailhead off County Road 80C, ca 43 air mi NW of Fort Collins.-105.960840.794125912835Aspen groves in spruce-fir forest, and along creek. Phenology: vegetative only.RMRM138230 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1231C. L. Porter193284217U.S.A.WyomingTetonDouble Diamond Ranch.-110.737743.70642042Common in dense aspen woods. Phenology: spores.RMRM260287 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller7833C. L. Porter Marjorie W. Porter1959624175U.S.A.WyomingCrookBear Lodge Range: between Alva and Aladdin.-104.320544.65821463Brushy hillsides. Phenology: spores.RMRM52392 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1601Aven Nelson189586218U.S.A.WyomingAlbanyLaramie Peak.-105.489142.255423172408Phenology: vegetative only.RMRM5632 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1601Aven Nelson189586218U.S.A.WyomingAlbanyLaramie Peak.-105.489142.255423172408Phenology: vegetative only.RMRM8691 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2662Aven Nelson1896818231U.S.A.WyomingAlbanyCentennial Valley-106.137341.26842469Phenology: spores.RMRM20090 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller6733Aven Nelson Elias Nelson1899828240U.S.A.WyomingParkYellowstone National Park: Gibbon Canyon.-110.751544.688814322286Very abundant in shaded nooks in the canyon. Phenology: spores.RMRM29558 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller7518Aven Nelson1900710191U.S.A.WyomingAlbanyLaramie Peak.-105.489142.255423172408In the deep, damp woods. Phenology: spores.RMRM88650 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2275Edwin B. Payson Lois B. Payson1920811224U.S.A.WyomingTetonJacksons Hole between Jenny and Leighs lakes.-110.725843.79772042Creek bank. Phenology: spores.RMRM31963 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller923Elmer D. Merrill E. N. Wilcox1901724205U.S.A.WyomingTetonLeighs Lake.-110.72543.82012073Damp ground. Phenology: spores.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller8109Erwin F. Evert198578189U.S.A.WyomingSheridanBig Horn Mountains: just W of Story Fish Hatchery buildlings and ponds.-106.917544.570116521707Under Pinus ponderosa with understory of Acer glabrum and Crataegus columbiana on an east-facing slope with calcareous, clayey soil.RMRM135214 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1323Louis O. Williams1933722203U.S.A.WyomingTetonGrand Teton National Park: Bradley Creek.-110.744543.7142134Moist places in timber. Phenology: spores.RMRM124633 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller174Louis O. Williams Rua Pierson1931621172U.S.A.WyomingTetonAlong Bradley Creek.-110.742443.7142134Sheet contains one pond. Phenology: vegetative only.RMRM129920 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller887Louis O. Williams1932717199U.S.A.WyomingTetonGrand Teton National Park: Bradley Creek.-110.741143.714121343-4 ft tall. Phenology: spores.RMRM157528 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller887Louis O. Williams1932717199U.S.A.WyomingTetonGrand Teton National Park: Bradley Creek.-110.741143.714121343-4 ft tall. Phenology: spores.RMRM546195 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller5045Robert D. Dorn1989923266U.S.A.WyomingAlbany1 1/8 mi up Laramie Peak trail.-105.469542.26972378Moist lodgepole pine with Mahonia and Chimaphila. Phenology: vegetative only.RMRM601122 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller6069Robert D. Dorn1995625176U.S.A.WyomingNatrona5.5 mi SW of Esterbrook.-105.430342.35581981Moist slope with Pinus ponderosa and Populus tremuloides. Phenology: vegetative only.RMUSFS400016 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller162Webster B. Jones1970812224U.S.A.WyomingAlbanySheep Mountain: Hansen Gulch.-106.003641.2112591Collected from moist areas under large rocks. Phenology: spores.RMRM546195 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller5045Robert D. Dorn1989923266U.S.A.WyomingAlbany1 1/8 mi up Laramie Peak trail.-105.469542.26972378Moist lodgepole pine with Mahonia and Chimaphila. Phenology: vegetative only.RMRM759024 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller68090Ronald L. Hartman2000711193U.S.A.ColoradoRouttNorth-central Colorado: Elkhead Mountains: trail to Sand Mountain, ca 5-8 air mi NW of Clark.-106.987240.751625303048Aspen and conifer forests. Phenology: vegetative only.RMRM763956 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller56363B. E. Nelson2001828240U.S.A.ColoradoRouttNorth-central Colorado: Park Range: along Forest Spur Road 471.1 from Forest Road 471 to upper Long Draw, NE of Mount Candy, ca 2.5 air mi SE of Clark; ca 14 air mi N of Steamboat Springs.-106.873240.679625972670Aspen forest. Phenology: vegetative only.RMRM834492 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller68676B. E. Nelson2006610161U.S.A.WyomingTetonGrand Teton National Park and Vicinity: Teton Range: from the junction with the Valley Trail along Death Canyon Trail at the lower end and mouth of Death Canyon, ca 4-5 air mi W of Moose; ca 13 air mi N of Jackson.-110.819543.658120732195Brushy canyon bottom. Phenology: spores.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2359B. A. Packer J. Brondum and T. McGowan1997729210U.S.A.WyomingAlbanyLaramie Range: Baldy Knob, ca 25 air mi S of Douglas.-105.332442.284121642262Creekside Phenology: spores.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2399B. A. Packer J. Brondum and T. McGowan1997729210U.S.A.WyomingAlbanyLaramie Range: Soldier Creek, ca 20 air mi SW of Douglas.-105.332442.370118991920Along creek. Phenology: spores.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller42708B. E. Nelson1997814226U.S.A.WyomingConverseLaramie Range: School Section Mountain ca 1 mi W of Old Fort Fetterman or County Road 16, ca 18.5 air mi WNW of Esterbrook; ca 26 air mi SW of Douglas.-105.725142.48223172408Subalpine fir-aspen forest. Phenology: vegetative only.RMRM157527 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller128Carl F. Baker1899825237U.S.A.ColoradoMineralNear Pagosa Peak.2743Phenology: vegetative only.RMRM22678 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller128Carl F. Baker1899825237U.S.A.ColoradoMineralNear Pagosa Peak.2743Phenology: vegetative only.RMRM31208 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller663Francis Ramaley1901520140U.S.A.ColoradoBoulderNear Boulder.Phenology: spores.RMRM157526 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1676George E. Osterhout1897710191U.S.A.ColoradoLarimerMoraine Park.Phenology: vegetative only.RMRM157520 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1876BGeorge E. Osterhout1897710191U.S.A.ColoradoLarimerMoraine Park.Phenology: vegetative only.RMRM97495 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller298L. M. Schedin N. T. SchedinU.S.A.ColoradoLa PlataDurango.Phenology: vegetative only.RMRM51789 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1595Leslie N. Goodding1903718199U.S.A.ColoradoRouttRabbit Ears Pass.Aspen groves. Phenology: vegetative only.RMRM532461 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1896P. P. Douglas1988621173U.S.A.ColoradoConejos2.5 mi S of Dipping Lakes; 4 mi WSW of Red Lake.2900On disturbed sites of southwest exposure with Populus tremuloides and Pseudotsuga. Phenology: vegetative only.RMRM393780 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2255Steve L. O'Kane Jr.1985816228U.S.A.ColoradoDouglasMill Gulch: Roxborough State Park.2057Scattered in shady sites beneath Pseudotsuga. Phenology: vegetative only.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller21522B. E. Nelson Michelle Nelson1991627178U.S.A.IdahoMadisonTarghee National Forest: Big Hole Mountains: S of Windy Ridge above Wolverine Creek, ca 16.5 air mi SE of Rexburg.-111.555343.65851981Aspen woods.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller18858B. E. Nelson1990621172U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: above East Beaver Creek S of Ellison Mountain, ca 2.5 air mi NNE of Buford; ca 16.5 air mi E of Meeker.-107.606240.026225002560Aspen forest on easterly facing slope.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller18943B. E. Nelson1990622173U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: along Jeep Trail 250 to Long Park N of the North Fork White River, ca 13 air mi NE of Buford; ca 28 air mi E of Meeker.-107.399440.069824082469Aspen woods.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1700James P. Vanderhorst1990814226U.S.A.ColoradoRio BlancoFlat Tops/White River Plateau: ridge between Big Beaver and Fawn creeks, ca 17 air mi E of Meeker.-107.568640.09882774Dry meadows with clumps of aspen, spruce, and fir.RM Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1892James P. Vanderhorst1990824236U.S.A.ColoradoGarfieldFlat Tops/White River Plateau: Grizzly Creek, ca 4 air mi E of Glenwood Springs.-107.249339.571418291890Canyon bottom, with cottonwood, Douglas fir, spruce, and dogwood.RMRM329418 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller4178B. E. Nelson William Blunt1979720201U.S.A.WyomingCarbonSierra Madre/Park Ranges: Sierra Madre: ca 15 air mi SW of Encampment, ca 28.5 air mi E of Dixon.-106.992241.03832652Moist aspen slopes. Phenology: spores.RMRM601122 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller6069Robert D. Dorn1995625176U.S.A.WyomingNatrona5.5 mi SW of Esterbrook.-105.430342.35581981Moist slope with Pinus ponderosa and Populus tremuloides. Phenology: vegetative only.RMRM370864 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller11869aB. E. Nelson1984913257U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: summit of the Bear Lodge Mountain, ca 1.3 air mi SE of Cook Lake, ca 12.5 air mi N of Sundance.-104.386944.58141524Paper birch-aspen forest with dense understory of (witch hazel)? Phenology: spores.RMRM370865 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller11934B. E. Nelson1984916260U.S.A.WyomingCrookBlack Hills: on the divide between Sand Creek and Shepherds Gulch; ca 10.3 air mi S of Beulah; ca 15.8 air mi E of Sundance.-104.062244.39421768Brushy paper birch forest in a draw. Phenology: spores.RMRM370856 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller1363Hollis Marriott B. E. Nelson1982714195U.S.A.WyomingCrookBlack Hills: Cement Ridge, southeast end, ca 7.5 air mi NE of Moskee; ca 15 air mi ESE of Sundance.-104.061744.351981Hazelnut thickets in birch woods. Phenology: vegetative only.RMRM370857 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2040Hollis Marriott1982811223U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: Bear Lodge Pass (Wyo Hwy 24), ca 6 air mi SE of Alva.-104.3252844.655561432Birch-aspen woods. Phenology: spores.RMRM370858 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller2918Hollis Marriott1983610161U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountain, Fawn Creek, ca 5.6 air mi SE of Alva.-104.366944.62561402Birch woods along creek. Phenology: vegetative only.RMRM370859 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller3007Hollis Marriott1983614165U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountain, headwaters of Oak Creek, Mitchell Spring; ca 4 air mi NE of Alva.-104.368944.72721371Birch woods. Phenology: vegetative only.RMRM370860 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller3792Hollis Marriott1983629180U.S.A.WyomingCrookBlack Hills: headwaters of Corral Creek, ca 9 air mi S of Beulah.-104.1027844.408891585Birch-aspen-pine forest. Phenology: spores.RMRM370862 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller5017Hollis Marriott1983726207U.S.A.WyomingCrookBlack Hills: Bear Lodge Mountains: between Whitelaw Creek and Ladogar Flats, ca 8 air mi NNW of Sundance.-104.4494444.50831798Aspen forest. intermediate Phenology: vegetative only.RMRM370863 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller7514Hollis Marriott198472184U.S.A.WyomingCrookBlack Hills: near headwaters of Deer Creek; ca 5 air mi SE of Moskee.-104.101444.232221859Aspen woods. Phenology: spores.RMRM370866 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller16108Ronald L. Hartman1983713194U.S.A.WyomingCrookBlack Hills: Geis Springs and vicinity, ca 5 air mi E of Alva.-104.346444.684441432Ponds and pond margins and adjacent oak woodlands and prairies; shaded slopes. Phenology: spores.RMRM370867 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller17813Ronald L. Hartman1984711193U.S.A.WyomingCrookBlack Hills: West Fork Boundary Gulch, ca 7 air mi S of Beulah.-104.062244.45171432Hill top covered with Pinus ponderosa forest with sandstone outcrop and sandy soil; sandy woodland. Phenology: spores.RMRM683794 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller18657Walter Fertig199963154U.S.A.WyomingCrookNorthwest Black Hills: Bear Lodge Moutains, Bear Lodge Campground just E of Wyo Hwy 34; ca 6 mi SE of Alva.-104.322544.65361426Shady Pinus ponderosa-Betula papyrifera forest with dense understory of Oryzopsis asperifolia, Spiraea, and Maianthemum canadense on moist, loamy soil. Phenology: vegetative only.RMRM829102 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller7093Brian Elliott Elizabeth Mark1999614165U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: San Isabel National Forest: ca 4 mi up trail 1316 from Cuerna Verde Park Trailhead; western edge of Rye.-104.962537.91842591Mixed forest with Picea engelmannii and Pseudotsuga menziesii. Phenology: spores.RMRM829101 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller7551Brian Elliott1999621172U.S.A.ColoradoPuebloWet Mountains, Wet Mountain Valley, Sangre de Cristo Range, and Vicinity: Wet Mountains: Colo Hwy 165, ca 4 air mi NW of Rye, at the YMCA Camp.-104.999137.94762652On a 1 year old burn in Pinus ponderosa. Phenology: vegetative only.RMRM921286 Pteridium aquilinum var. latiusculumphysical specimenDennstaedtiaceaePteridiumaquilinumvar. latiusculum(Desv.) Underw. ex A. Heller11313Robert D. Dorn201471182U.S.A.WyomingCrookCa 8 mi S of Beulah.-104.07166744.4251585Oak-pine, with Achillea and Rosa. Phenology: vegetative only.36003,1,0true