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Sensitive Species List
White-tailed ptarmigan, Denny Bohon
Under agency policy, Regional Foresters identify native plants and animals ("sensitive" species) that show evidence of decline and potential sensitivity to national forest and national grassland activities and management. The Forest Service provides special management attention to these species to conserve them on the lands and watersheds we manage and avoid contributing to their continued decline and eventual need for listing under the national Endangered Species Act.
On this page is the current list of Regional Forester sensitive species for the Rocky Mountain Region (Region 2) of the National Forest and Grassland System. A map of Region 2 is available for viewing. You may also download a copy of the Region 2 FSM 2670 Amendment (December 18, 2018) containing the current sensitive species list and the procedures and criteria used to identify them.
| Amphibians (n = 5) | ||
|---|---|---|
| Boreal toad Anaxyrus boreas boreas |
Evaluation | Rationale |
| Columbia spotted frog, Region-wide Rana luteiventris Bighorn pop. |
Evaluation | Rationale |
| Northern leopard frog Lithobates pipiens |
Evaluation | Rationale |
| Plains leopard frog Lithobates blairi |
Evaluation | Rationale |
| Wood frog, Region-wide Lithobates sylvaticus Bighorn pop. Southern Rockies pop. |
Evaluation | Rationale |
| Birds (n = 30) | ||
| American bittern Botaurus lentiginosus |
Evaluation | Rationale |
| Black swift Cypseloides niger |
Evaluation | Rationale |
| Black tern Chlidonias niger |
Evaluation | Rationale |
| Black-backed woodpecker Picoides arcticus |
Evaluation | Rationale |
| Boreal owl Aegolius funereus |
Evaluation | Rationale |
| Brewer's sparrow Spizella breweri |
Evaluation | Rationale |
| Burrowing owl Athene cunicularia |
Evaluation & Rationale | |
| Cassin's sparrow Peucaea cassinii |
Evaluation | Rationale |
| Chestnut-collared longspur Calcarius ornatus |
Evaluation | Rationale |
| Columbian sharp-tailed grouse Tympanuchus phasianellus columbianus |
Evaluation | Rationale |
| Ferruginous hawk Buteo regalis |
Evaluation | Rationale |
| Flammulated owl Psiloscops flammeolus |
Evaluation | Rationale |
| Grasshopper sparrow Ammodramus savannarum |
Evaluation | Rationale |
| Greater prairie-chicken Tympanuchus cupido |
Evaluation | Rationale |
| Greater sage-grouse Centrocercus urophasianus |
Evaluation | Rationale |
| Harlequin duck Histrionicus histrionicus |
Evaluation | Rationale |
| Lesser prairie-chicken Tympanuchus pallidicinctus |
Evaluation & Rationale | |
| Lewis's woodpecker Melanerpes lewis |
Evaluation | Rationale |
| Loggerhead shrike Lanius ludovicianus |
Evaluation | Rationale |
| Long-billed curlew Numenius americanus |
Evaluation | Rationale |
| McCown's longspur Rhynchophanes mccownii |
Evaluation | Rationale |
| Mountain plover Charadrius montanus |
No evaluation | Rationale |
| Northern goshawk Accipiter gentilis |
Evaluation | Rationale |
| Northern harrier Circus cyaneus |
Evaluation | Rationale |
| Olive-sided flycatcher Contopus cooperi |
Evaluation | Rationale |
| Purple martin Progne subis |
Evaluation | Rationale |
| Sagebrush sparrow Artemisiospiza nevadensis |
Evaluation | Rationale |
| Short-eared owl Asio flammeus |
Evaluation | Rationale |
| Trumpeter swan Cygnus buccinator |
Evaluation | Rationale |
| White-tailed ptarmigan Lagopus leucura |
Evaluation | Rationale |
| Fishes (n = 19) | ||
| Bluehead sucker Catostomus discobolus |
Evaluation | Rationale |
| Colorado River cutthroat trout Oncorhynchus clarkii pleuriticus |
Evaluation | Rationale |
| Finescale dace Chrosomus neogaeus |
Evaluation | Rationale |
| Flannelmouth sucker Catostomus latipinnis |
Evaluation | Rationale |
| Flathead chub Platygobio gracilis |
Evaluation | Rationale |
| Hornyhead chub Nocomis biguttatus |
Evaluation | Rationale |
| Lake chub Couesius plumbeus |
Evaluation #1 | #2 | Rationale #1 | #2 |
| Mountain sucker Catostomus platyrhynchus |
Evaluation | Rationale |
| Northern redbelly dace Chrosomus eos |
Evaluation | Rationale |
| Northern pearl dace Margariscus nachtriebi |
Evaluation | Rationale |
| Plains minnow Hybognathus placitus |
Evaluation | Rationale |
| Plains topminnow Fundulus sciadicus |
Evaluation | Rationale |
| Rio Grande chub Gila pandora |
Evaluation | Rationale |
| Rio Grande cutthroat trout Oncorhynchus clarkii virginalis |
Evaluation | Rationale |
| Rio Grande sucker Catostomus plebeius |
Evaluation | Rationale |
| Roundtail chub Gila robusta |
Evaluation | Rationale |
| Southern redbelly dace Chrosomus erythrogaster |
Evaluation | Rationale |
| Sturgeon chub Macrhybopsis gelida |
Evaluation | Rationale |
| Yellowstone cutthroat trout Oncorhynchus clarkii bouvieri |
Evaluation | Rationale |
| Insects (n = 9) | ||
| Arogos skipper Atrytone arogos |
Evaluation | Rationale |
| Arapahoe snowfly Capnia arapahoe |
ESA candidate | |
| Hudsonian emerald Somatochlora hudsonica |
Evaluation | Rationale |
| Monarch Danaus plexippus plexippus |
Evaluation | Rationale |
| Nokomis fritillary, or Great Basin silverspot Speyeria nokomis nokomis |
Evaluation | Rationale |
| Ottoe skipper Hesperia ottoe |
Evaluation#1 | #2 | Rationale |
| Regal fritillary Speyeria idalia |
Evaluation #1 | #2 | Rationale |
| Susan's purse-making caddisfly Ochrotrichia susanae |
Evaluation | Rationale |
| Western bumble bee Bombus occidentalis |
Evaluation | Rationale |
| Mammals (n = 17) | ||
| American marten Martes americana |
Evaluation | Rationale |
| Black-tailed prairie dog Cynomys ludovicianus |
Evaluation | Rationale |
| American hog-nosed skunk Conepatus leuconotus |
Evaluation | Rationale |
| Desert bighorn sheep Ovis canadensis nelsoni |
Evaluation | Rationale |
| Fringed myotis Myotis thysanodes |
Evaluation | Rationale |
| Gunnison's prairie dog Cynomys gunnisoni |
Evaluation | Rationale |
| Hoary bat Lasiurus cinereus |
Evaluation | Rationale |
| Kit fox Vulpes macrotis |
Evaluation | Rationale |
| Pygmy shrew (Rocky Mountain pop.) Sorex hoyi |
Evaluation | Rationale |
| River otter Lontra canadensis |
Evaluation | Rationale |
| Rocky Mountain bighorn sheep Ovis canadensis canadensis |
Evaluation | Rationale |
| Spotted bat Euderma maculatum |
Evaluation | Rationale |
| Swift fox Vulpes velox |
Evaluation | Rationale |
| Townsend's big-eared bat Conepatus leuconotus |
Evaluation #1 | #2 | Rationale |
| Water vole (Bighorn Mountain pop.) Microtus richardsoni |
Evaluation | Rationale |
| White-tailed prairie dog Cynomys leucurus |
Evaluation | Rationale |
| Wyoming pocket gopher Thomomys clusius |
Evaluation & Rationale | |
| Mollusks (n = 3) | ||
| Cooper's Rocky Mountain snail Oreohelix strigosa cooperi |
Evaluation#1 | #2 | Rationale |
| Pygmy Mountainsnail Oreohelix pygmaea |
Evaluation | Rationale |
| Rocky Mountain capshell Acroloxus coloradensis |
Evaluation | Rationale |
| Reptiles (n = 2) | ||
| Black Hills redbelly snake Storeria occipitomaculata pahasapae |
Evaluation | Rationale |
| Massasauga Sistrurus tergeminus edwardsii |
Evaluation | Rationale |
| Angiosperms - Dicots (n = 60) | ||
|---|---|---|
| Absaroka Range beardtongue Penstemon absarokensis |
Evaluation | Rationale |
| American cranberrybush Viburnum opulus var americanum |
Evaluation #1 | #2 | Rationale |
| Arizona willow Salix arizonica |
Evaluation | Rationale |
| Aztec milkvetch Astragalus proximus |
Evaluation | Rationale |
| Autumn willow Salix serissima |
Evaluation #1 | #2 | Rationale |
| Barr's milkvetch Astragalus barrii |
Evaluation #1 | #2 | #3 | Rationale |
| Barratt's willow Salix barrattiana |
Evaluation | Rationale |
| Bill's neoparrya Neoparrya lithophila |
Evaluation | Rationale |
| Bloodroot Sanguinaria canadensis |
Evaluation | Rationale |
| Blueberry willow Salix myrtillifolia |
Evaluation #1 | #2 | Rationale |
| Brandegee's buckwheat Eriogonum brandegeei |
No evaluation | Rationale |
| Cary's beardtongue Penstemon caryi |
Evaluation #1 | #2 | Rationale |
| Cathedral Bluff meadow-rue Thalictrum heliophilum |
Evaluation | Rationale |
| Clawless draba Draba exunguiculata |
Evaluation | Rationale |
| Colorado tansyaster Xanthisma coloradoense |
Evaluation #1 | #2 | #3 | Rationale |
| Common twinpod Physaria didymocarpa ssp lanata |
Evaluation | Rationale |
| Cushion Townsend daisy Townsendia condensata |
Evaluation | Rationale |
| Cushion bladderpod Physaria pulvinata |
Evaluation | Rationale |
| Degener's beardtongue Penstemon degeneri |
Evaluation | Rationale |
| Dropleaf buckwheat Eriogonum exilifolium |
Evaluation #1 | #2 | Rationale |
| Dwarf raspberry Rubus arcticusacaulis |
Evaluation #1 | #2 | Rationale |
| English sundew Drosera anglica |
Evaluation | Rationale |
| Fremont's bladderpod Lesquerella fremontii |
Evaluation | Rationale |
| Gray's draba Draba grayana |
No evaluation | Rationale |
| Greenland primrose Primula egaliksensis |
Evaluation #1 | #2 | Rationale |
| Harrington's beardtongue Penstemon harringtonii |
Evaluation | Rationale |
| Ice cold buttercup Ranunculus grayi |
Evaluation | Rationale |
| Kotzebue's grass of Parnassus Parnassia kotzebuei |
Evaluation | Rationale |
| Laramie columbine Aquilegia laramiensis |
Evaluation | Rationale |
| Largeflower goldenweed Pyrrocoma carthamoides var subsquarrosa |
Evaluation | Rationale |
| Lesser bladderwort Utricularia minor |
Evaluation #1 | #2 | Rationale |
| Lone Mesa snakeweed Gutierrezia elegans |
Evaluation | Rationale |
| Mancos Shale packera Packera mancosana |
Evaluation | Rationale |
| Many-stemmed goldenweed Pyrrocoma integrifolia |
Evaluation | Rationale |
| Missouri milkvetch Astragalus missouriensis var. humistratus |
Evaluation | Rationale |
| Pagosa Springs bladderpod Lesquerella pruinosa |
Evaluation | Rationale |
| Park milkvetch Astragalus leptaleus |
Evaluation #1 | #2 | Rationale |
| Pike's Peak alpineparsley Oreoxis humilis |
Evaluation | Rationale |
| Prairie dodder Cuscuta plattensis |
Evaluation | Rationale |
| Ripley's milkvetch Astragalus ripleyi |
Evaluation #1 | #2 | Rationale |
| Rock cinquefoil Potentilla rupincola |
Evaluation | Rationale |
| Rocky Mountain monkeyflower Mimulus gemmiparus |
Evaluation | Rationale |
| Roundleaf sundew Drosera rotundifolia |
Evaluation | Rationale |
| Rydberg's golden columbine Aquilegia chrysantha |
Evaluation | Rationale |
| Sageleaf willow Salix candida |
Evaluation #1 | #2 | Rationale |
| Sandhill goosefoot Chenopodium cycloides |
Evaluation | Rationale |
| Scarlet gilia Ipomopsis aggregata ssp. weberi |
Evaluation #1 | #2 | Rationale |
| Selkirk's violet Viola selkirkii |
Evaluation | Rationale |
| Shoshone carrot Shoshonea pulvinata |
Evaluation | Rationale |
| Siberian sea thrift Armeria maritima ssp sibirica |
Evaluation | Rationale |
| Smith's draba Draba smithii |
Evaluation | Rationale |
| Smooth northern-rockcress Braya glabella |
Evaluation #1 | #2 | Rationale |
| Stonecrop gilia Aliciella sedifolia |
No evaluation | Rationale |
| Tranquil goldenweed Pyrrocoma clementis var. villosa |
Evaluation #1 | #2 | Rationale |
| Violet milkvetch Astragalus iodopetalus |
Evaluation | Rationale |
| Visher's buckwheat Eriogonum visheri |
Evaluation #1 | #2 | Rationale |
| Weber's draba Draba weberi |
Evaluation #1 | #2 | Rationale |
| West Silver bladderpod Physaria scrotiformis |
Evaluation | Rationale |
| Wheel milkweed Asclepias uncialis |
Evaluation #1 | #2 | Rationale |
| Wind River / Mountain tansymustard Descurainia torulosa |
Evaluation | Rationale |
| Angiosperms - Monocots (n = 19) | ||
| Chamisso's cottongrass Eriophorum chamissonis |
Evaluation | Rationale |
| Elliptic spikerush Eleocharis elliptica |
Evaluation | Rationale |
| Foxtail sedge Carex alopecoidea |
Evaluation #1 | #2 | Rationale |
| Hall's bulrush Schoenoplectus hallii |
Evaluation | Rationale |
| Largeflower tritelia Triteleia grandiflora |
Evaluation #1 | #2 | Rationale |
| Lesser panicled sedge Carex diandra |
Evaluation | Rationale |
| Lesser roundleaved orchid Platanthera orbiculata |
Evaluation #1 | #2 | Rationale |
| Lividsedge Carex livida |
Evaluation #1 | #2 | Rationale |
| Mountain lady's slipper Cypripedium montanum |
Evaluation | Rationale |
| Plains rough fescue Festuca hallii |
Evaluation | Rationale |
| Porter's false needlegrass Ptilagrostis porteri |
Evaluation | Rationale |
| Roundleaf orchid Galearis rotundifolia |
Evaluation | Rationale |
| Simple bog sedge Kobresia simpliciuscula |
Evaluation #1 | #2 | Rationale |
| Slender cottongrass Eriophorum gracile |
Evaluation #1 | #2 | Rationale |
| Stream orchid Epipactis gigantea |
Evaluation #1 | #2 | #3 | Rationale |
| White adder's-mouth orchid Malaxis monophyllos var. brachypoda |
Evaluation | Rationale |
| Winding mariposa lily Calochortus flexuosus |
Evaluation | Rationale |
| Lesser yellow lady's slipper Cypripedium parviflorum |
Evaluation #1 | #2| #3 #4 | #5 | Rationale |
| Yellow widelip orchid Liparis loeselii |
Evaluation #1 | #2 | #3 | Rationale |
| Gymnosperms (n = 1) | ||
| Whitebark pine Pinus albicaulis |
Evaluation | Rationale |
| Ferns and Fern Allies (n = 5) | ||
| Club spikemoss Selaginella selaginoides |
Evaluation #1 | #2 | Rationale |
| Groundcedar Lycopodium complanatum |
Evaluation | Rationale |
| Iowa moonwort Botrychium campestre |
Evaluation #1 | #2 | Rationale |
| Peculiar moonwort Botrychium paradoxum |
Evaluation | Rationale |
| Trianglelobe moonwort Botrychium ascendens |
Evaluation | Rationale |
| Non-vascular (n = 2) | ||
| Baltic sphagnum Sphagnum balticum |
Evaluation | Rationale |
| Sphagnum Sphagnum angustifolium |
Evaluation | Rationale |