The wildlife at Grand Teton National Park is beautiful and diverse. There are a variety of amphibians, birds, fish, mammals, reptiles, and plants to explore. Check out all the incredible species this park has to offer!
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Grand Teton National Park Species List
| Amphibians | Birds | Fish | Mammals | Reptiles | Plants |
Amphibians
Northern Leopard Frog | Photo Credit: Bernell MacDonald 
Bullfrog | Photo Credit: Virginia Allain
| Amphibian Name | Scientific Name | Abundance | Nativeness |
| American Bullfrog | Lithobates catesbeianus | Common | Non-native |
| Blotched Tiger Salamander | Ambystoma mavortium melanostictum | Common | Native |
| Boreal Chorus Frog | Pseudacris maculata | Common | Native |
| Boreal Toad | Bufo boreas boreas | Uncommon | Native |
| Columbia Spotted Frog | Rana luteiventris | Common | Native |
| Northern Leopard Frog | Rana pipiens | Rare | Native |
| Amphibians | Birds | Fish | Mammals | Reptiles | Plants |
Birds
Great Horned Owl, Grand Teton National Park, Wyoming | Photo Credit: NPS 
Golden Eagle, Grand Teton National Park, Wyoming | Photo Credit: NPS
| Bird Name | Scientific Name | Abundance | Nativeness |
| American Avocet | Recurvirostra americana | Rare | Native |
| American Bittern | Botaurus lentiginosus | Uncommon | Native |
| American Cliff Swallow, Cliff Swallow | Petrochelidon pyrrhonota | Common | Native |
| American Coot | Fulica americana | Common | Native |
| American Crow | Corvus brachyrhynchos | Common | Native |
| American Dipper | Cinclus mexicanus | Common | Native |
| American Goldfinch | Carduelis tristis | Common | Native |
| American Kestrel | Falco sparverius | Common | Native |
| American magpie, black-billed magpie | Pica hudsonia | Common | Native |
| American Pipit, Buff-bellied Pipit | Anthus rubescens | Uncommon | Native |
| American Robin | Turdus migratorius | Abundant | Native |
| American Three-toed Woodpecker | Picoides dorsalis | Uncommon | Native |
| American White Pelican | Pelecanus erythrorhynchos | Common | Native |
| American Wigeon | Anas americana | Common | Native |
| American Yellow Warbler, Yellow Warbler | Dendroica petechia | Abundant | Native |
| Bald Eagle | Haliaeetus leucocephalus | Common | Native |
| Bank Swallow, Sand Martin | Riparia riparia | Common | Native |
| Barn Owl, Common Barn-Owl, Western Barn Owl | Tyto alba | Rare | Native |
| Barn Swallow | Hirundo rustica | Common | Native |
| Barrow’s Goldeneye | Bucephala islandica | Common | Native |
| Belted Kingfisher | Ceryle alcyon | Common | Native |
| Black Rosy-Finch | Leucosticte atrata | Common | Native |
| Black-backed Woodpecker | Picoides arcticus | Rare | Native |
| Black-capped Chickadee | Poecile atricapillus | Common | Native |
| Black-headed Grosbeak | Pheucticus melanocephalus | Common | Native |
| Black-necked Grebe, Eared Grebe | Podiceps nigricollis | Common | Native |
| Blue Goose, Snow Goose | Chen caerulescens | Rare | Native |
| Blue Grouse | Dendragapus obscurus | Common | Native |
| Blue-winged Teal | Anas discors | Uncommon | Native |
| Bobolink | Dolichonyx oryzivorus | Uncommon | Native |
| Boreal Owl | Aegolius funereus | Uncommon | Native |
| Brewer’s Blackbird | Euphagus cyanocephalus | Abundant | Native |
| Brewer’s Sparrow | Spizella breweri | Common | Native |
| Broad-tailed Hummingbird | Selasphorus platycercus | Common | Native |
| Brown creeper | Certhia americana | Common | Native |
| Brown-headed Cowbird | Molothrus ater | Common | Native |
| Bufflehead | Bucephala albeola | Common | Native |
| Burrowing Owl | Athene cunicularia | Rare | Native |
| California Gull | Larus californicus | Common | Native |
| Calliope Hummingbird | Stellula calliope | Common | Native |
| Canada Goose | Branta canadensis | Abundant | Native |
| Canvasback | Aythya valisineria | Uncommon | Native |
| Caspian Tern | Sterna caspia | Uncommon | Native |
| Cassin’s Finch | Carpodacus cassinii | Common | Native |
| Cedar Waxwing | Bombycilla cedrorum | Common | Native |
| Chipping Sparrow | Spizella passerina | Common | Native |
| Cinnamon Teal | Anas cyanoptera | Common | Native |
| Clark’s grebe | Aechmophorus clarkii | Uncommon | Native |
| Clark’s Nutcracker | Nucifraga columbiana | Common | Native |
| Common Goldeneye | Bucephala clangula | Common | Native |
| Common Grackle | Quiscalus quiscula | Uncommon | Native |
| Common Loon, Great Northern Diver, Great Northern Loon | Gavia immer | Uncommon | Native |
| Common Merganser | Mergus merganser | Common | Native |
| Common Nighthawk | Chordeiles minor | Common | Native |
| Common Pigeon, Rock Dove, Rock Pigeon | Columba livia | Occasional | Non-native |
| Common Raven, Northern Raven | Corvus corax | Abundant | Native |
| Common Snipe | Gallinago gallinago | Common | Native |
| Common Starling, European Starling | Sturnus vulgaris | Uncommon | Non-native |
| Common Tern | Sterna hirundo | Uncommon | Native |
| Common Yellowthroat | Geothlypis trichas | Common | Native |
| Cooper’s Hawk | Accipiter cooperii | Uncommon | Native |
| Cordilleran Flycatcher | Empidonax occidentalis | Uncommon | Native |
| Dark-eyed Junco | Junco hyemalis | Abundant | Native |
| Double-crested Cormorant | Phalacrocorax auritus | Common | Native |
| Downy Woodpecker | Picoides pubescens | Common | Native |
| Dusky Flycatcher | Empidonax oberholseri | Common | Native |
| Eastern Kingbird | Tyrannus tyrannus | Uncommon | Native |
| Eurasian Teal, Green-winged Teal | Anas crecca | Common | Native |
| Evening Grosbeak | Coccothraustes vespertinus | Common | Native |
| Ferruginous Hawk | Buteo regalis | Rare | Native |
| Fox Sparrow, Red Fox Sparrow | Passerella iliaca | Common | Native |
| Franklin’s Gull | Larus pipixcan | Common | Native |
| Gadwall | Anas strepera | Common | Native |
| Golden Eagle | Aquila chrysaetos | Uncommon | Native |
| Golden-crowned Kinglet | Regulus satrapa | Uncommon | Native |
| Gray Catbird, Grey Catbird | Dumetella carolinensis | Uncommon | Native |
| Gray Jay, Grey Jay | Perisoreus canadensis | Common | Native |
| Gray-crowned Rosy-finch | Leucosticte tephrocotis | Uncommon | Native |
| Great Blue Heron | Ardea herodias | Common | Native |
| Great Gray Owl, Great Grey Owl | Strix nebulosa | Uncommon | Native |
| Great Grey Shrike, Northern Shrike | Lanius excubitor | Uncommon | Native |
| Great Horned Owl | Bubo virginianus | Common | Native |
| Greater Sage Grouse, Greater Sage-Grouse, Sage Grouse | Centrocercus urophasianus | Uncommon | Native |
| Green-tailed Towhee | Pipilo chlorurus | Common | Native |
| Hairy Woodpecker | Picoides villosus | Common | Native |
| Hammond’s flycatcher | Empidonax hammondi | Uncommon | Native |
| Harlequin Duck | Histrionicus histrionicus | Uncommon | Native |
| Hermit Thrush | Catharus guttatus | Common | Native |
| Hooded Merganser | Lophodytes cucullatus | Uncommon | Native |
| Horned Lark | Eremophila alpestris | Common | Native |
| House Finch | Carpodacus mexicanus | Common | Native |
| House Wren | Troglodytes aedon | Common | Native |
| Killdeer | Charadrius vociferus | Common | Native |
| Lazuli Bunting | Passerina amoena | Common | Native |
| Lesser Scaup | Aythya affinis | Uncommon | Native |
| Lincoln’s Sparrow | Melospiza lincolnii | Common | Native |
| Loggerhead Shrike | Lanius ludovicianus | Uncommon | Native |
| Long-billed Curlew | Numenius americanus | Uncommon | Native |
| Long-billed Dowitcher | Limnodromus scolopaceus | Uncommon | Native |
| Long-eared Owl | Asio otus | Uncommon | Native |
| MacGillivray’s Warbler | Oporornis tolmiei | Common | Native |
| Mallard | Anas platyrhynchos | Abundant | Native |
| Marsh Wren | Cistothorus palustris | Common | Native |
| Mountain Bluebird | Sialia currucoides | Common | Native |
| Mountain Chickadee | Poecile gambeli | Common | Native |
| Mountain Pygmy Owl, Northern Pygmy-Owl | Glaucidium gnoma | Uncommon | Native |
| Mourning Dove | Zenaida macroura | Common | Native |
| Northern Flicker | Colaptes auratus | Common | Native |
| Northern Goshawk | Accipiter gentilis | Uncommon | Native |
| Northern Harrier | Circus cyaneus | Common | Native |
| Northern Pintail | Anas acuta | Uncommon | Native |
| Northern Rough-winged Swallow | Stelgidopteryx serripennis | Common | Native |
| Northern Saw-whet Owl | Aegolius acadicus | Uncommon | Native |
| Northern Shoveler | Anas clypeata | Common | Native |
| Northern Waterthrush | Seiurus noveboracensis | Rare | Native |
| Olive-sided Flycatcher | Contopus cooperi | Common | Native |
| Orange-crowned Warbler | Vermivora celata | Uncommon | Native |
| Osprey, Western Osprey | Pandion haliaetus | Common | Native |
| Peregrine Falcon | Falco peregrinus | Uncommon | Native |
| Pied-billed Grebe | Podilymbus podiceps | Uncommon | Native |
| Pine Grosbeak | Pinicola enucleator | Uncommon | Native |
| Pine Siskin | Carduelis pinus | Common | Native |
| Plumbeous Vireo | Vireo plumbeus | Uncommon | Native |
| Prairie Falcon | Falco mexicanus | Uncommon | Native |
| Pygmy Nuthatch | Sitta pygmaea | Occasional | Native |
| Red Crossbill | Loxia curvirostra | Common | Native |
| Red-breasted Merganser | Mergus serrator | Uncommon | Native |
| Red-breasted Nuthatch | Sitta canadensis | Common | Native |
| Redhead | Aythya americana | Uncommon | Native |
| Red-naped Sapsucker | Sphyrapicus nuchalis | Common | Native |
| Red-tailed Hawk | Buteo jamaicensis | Common | Native |
| Red-winged Blackbird | Agelaius phoeniceus | Abundant | Native |
| Ring-billed Gull | Larus delawarensis | Uncommon | Native |
| Ring-necked Duck | Aythya collaris | Common | Native |
| Rock Wren | Salpinctes obsoletus | Common | Native |
| Roughleg, Rough-legged Buzzard, Rough-legged Hawk | Buteo lagopus | Uncommon | Native |
| Ruby-crowned Kinglet | Regulus calendula | Abundant | Native |
| Ruddy Duck | Oxyura jamaicensis | Uncommon | Native |
| Ruffed Grouse | Bonasa umbellus | Common | Native |
| Rufous Hummingbird | Selasphorus rufus | Common | Native |
| Sage Thrasher | Oreoscoptes montanus | Uncommon | Native |
| Sandhill Crane | Grus canadensis | Common | Native |
| Savannah Sparrow | Passerculus sandwichensis | Common | Native |
| Sharp-shinned Hawk | Accipiter striatus | Uncommon | Native |
| Short-eared Owl | Asio flammeus | Uncommon | Native |
| Snow Bunting | Plectrophenax nivalis | Uncommon | Native |
| Snowy Egret | Egretta thula | Uncommon | Native |
| Solitary Sandpiper | Tringa solitaria | Uncommon | Native |
| Song Sparrow | Melospiza melodia | Common | Native |
| Sora | Porzana carolina | Common | Native |
| Spotted Sandpiper | Actitis macularia | Uncommon | Native |
| Steller’s Jay | Cyanocitta stelleri | Common | Native |
| Swainson’s Hawk | Buteo swainsoni | Common | Native |
| Swainson’s Thrush | Catharus ustulatus | Common | Native |
| Townsend’s Solitaire | Myadestes townsendi | Common | Native |
| Townsend’s Warbler | Dendroica townsendi | Rare | Native |
| Tree Swallow | Tachycineta bicolor | Abundant | Native |
| Trumpeter Swan | Cygnus buccinator | Common | Native |
| Turkey Vulture | Cathartes aura | Common | Native |
| Two-barred Crossbill, White-winged Crossbill | Loxia leucoptera | Rare | Native |
| Varied Thrush | Ixoreus naevius | Rare | Native |
| Vesper Sparrow | Pooecetes gramineus | Common | Native |
| Violet-green Swallow | Tachycineta thalassina | Common | Native |
| Virginia Rail | Rallus limicola | Uncommon | Native |
| Warbling Vireo | Vireo gilvus | Abundant | Native |
| Western Grebe | Aechmophorus occidentalis | Uncommon | Native |
| Western Meadowlark | Sturnella neglecta | Common | Native |
| Western Tanager | Piranga ludoviciana | Common | Native |
| Western Wood Pewee, Western Wood-Pewee | Contopus sordidulus | Common | Native |
| White-breasted Nuthatch | Sitta carolinensis | Uncommon | Native |
| White-crowned Sparrow | Zonotrichia leucophrys | Abundant | Native |
| White-faced ibis | Plegadis chihi | Uncommon | Native |
| Willet | Catoptrophorus semipalmatus | Uncommon | Native |
| Williamson’s Sapsucker | Sphyrapicus thyroideus | Uncommon | Native |
| Willow Flycatcher | Empidonax traillii | Common | Native |
| Wilson’s Phalarope | Phalaropus tricolor | Common | Native |
| Wilson’s Warbler | Wilsonia pusilla | Common | Native |
| Yellow Rail | Coturnicops noveboracensis | Rare | Native |
| Yellow-headed Blackbird | Xanthocephalus xanthocephalus | Common | Native |
| Yellow-rumped Warbler | Dendroica coronata | Abundant | Native |
| Amphibians | Birds | Fish | Mammals | Reptiles | Plants |
Fish
Mountain Whitefish | Photo Credit: Skeeze 
Rainbow Trout Swimming | Photo Credit: Davgood Kirshot
| Fish Name | Scientific Name | Abundance | Nativeness |
| [Common Name Unknown] | Oncorhynchus clarki behnkei | Unknown | Native |
| aurora trout, brook trout, charr, coaster brook trout, salter, sea trout | Salvelinus fontinalis | Common | Non-native |
| bluehead sucker | Catostomus discobolus | Common | Native |
| Bonneville redside shiner | Richardsonius balteatus | Common | Native |
| Brown trout | Salmo trutta | Common | Non-native |
| convict cichlid, zebra cichlid | Cichlasoma nigrofasciatum | Common | Non-native |
| green swordtail | Xiphophorus helleri | Common | Non-native |
| Guppy | Poecilia reticulata | Common | Non-native |
| lake trout | Salvelinus namaycush | Abundant | Non-native |
| leatherside chub | Snyderichthys copei | Uncommon | Native |
| Longnose dace | Rhinichthys cataractae | Common | Native |
| Mottled sculpin | Cottus bairdii | Abundant | Native |
| mountain sucker | Catostomus platyrhynchus | Common | Native |
| Mountain whitefish | Prosopium williamsoni | Abundant | Native |
| Paiute sculpin | Cottus beldingii | Abundant | Native |
| rainbow trout, redband trout, steelhead | Oncorhynchus mykiss | Uncommon | Non-native |
| Speckled dace | Rhinichthys osculus | Common | Native |
| Utah chub | Gila atraria | Abundant | Native |
| Utah sucker | Catostomus ardens | Abundant | Native |
| Yellowstone cutthroat trout | Oncorhynchus clarkii bouvieri | Abundant | Native |
| Amphibians | Birds | Fish | Mammals | Reptiles | Plants |
Mammals
Uinta Ground Squirrel, Grand Teton National Park, Wyoming | Photo Credit: NPS 
Pine Marten, Grand Teton National Park, Wyoming | Photo Credit: NPS
| Mammal Name | Scientific Name | Abundance | Nativeness |
| American Badger, badger | Taxidea taxus | Common | Native |
| American Beaver | Castor canadensis | Common | Native |
| American bison, bison | Bos bison | Common | Native |
| American Black Bear, black bear | Ursus americanus | Common | Native |
| American mink, mink | Mustela vison | Uncommon | Native |
| American Pika, pika | Ochotona princeps | Common | Native |
| American Water Shrew, northern water shrew, Water Shrew | Sorex palustris | Uncommon | Native |
| big brown bat, Big Brown Bat | Eptesicus fuscus | Common | Native |
| bighorn sheep, Bighorn Sheep | Ovis canadensis | Uncommon | Native |
| Brown Bear, Grizzly Bear | Ursus arctos | Common | Native |
| Bushy-tailed Woodrat | Neotoma cinerea | Common | Native |
| Canada lynx, Canadian Lynx, lynx | Lynx canadensis | Occasional | Native |
| Cinereus Shrew, common shrew, masked shrew | Sorex cinereus | Common | Native |
| Common Muskrat, Muskbeaver, Muskrat | Ondatra zibethicus | Common | Native |
| common otter, North American River Otter, northern river otter, river otter | Lontra canadensis | Uncommon | Native |
| common porcupine, porcupine | Erethizon dorsatum | Common | Native |
| common raccoon, northern raccoon, Raccoon | Procyon lotor | Uncommon | Unknown |
| Coronation Island vole, Long-tailed Vole | Microtus longicaudus | Abundant | Native |
| Coyote | Canis latrans | Abundant | Native |
| Deer Mouse, North American Deermouse | Peromyscus maniculatus | Abundant | Native |
| Dusky Shrew, Montane Shrew | Sorex monticolus | Unknown | Native |
| Elk | Cervus elaphus | Abundant | Native |
| Ermine | Mustela erminea | Common | Native |
| Eurasian Elk, moose | Alces alces | Common | Unknown |
| fringed myotis, Fringed Myotis | Myotis thysanodes | Rare | Native |
| Golden-mantled Ground Squirrel | Spermophilus lateralis | Common | Native |
| Gray Wolf, Wolf | Canis lupus | Uncommon | Native |
| Heather Vole, Western Heather Vole | Phenacomys intermedius | Unknown | Native |
| hoary bat, Hoary Bat | Lasiurus cinereus | Uncommon | Native |
| Least Chipmunk | Neotamias minimus | Common | Native |
| little brown bat, little brown myotis, Little Brown Myotis | Myotis lucifugus | Abundant | Native |
| long-eared myotis, Long-eared Myotis | Myotis evotis | Uncommon | Native |
| long-legged myotis, Long-legged Myotis | Myotis volans | Common | Native |
| Long-tailed Weasel | Mustela frenata | Common | Native |
| Meadow Vole | Microtus pennsylvanicus | Abundant | Native |
| Montane Vole | Microtus montanus | Abundant | Native |
| mule deer, Mule Deer | Odocoileus hemionus | Common | Native |
| mule-eared bat, Pacific Townsend’s big-eared bat, Townsend’s big-eared bat, Townsend’s Big-eared Bat, western big-eared bat, western long-eared bat, western lump-nosed bat | Corynorhinus townsendii | Rare | Native |
| North American Water Vole, Water Vole | Microtus richardsoni | Uncommon | Native |
| Northern Flying Squirrel | Glaucomys sabrinus | Unknown | Native |
| Northern Pocket Gopher | Thomomys talpoides | Common | Native |
| Pine marten | Martes americana | Uncommon | Native |
| pronghorn, Pronghorn | Antilocapra americana | Common | Native |
| Red Fox | Vulpes vulpes | Uncommon | Unknown |
| Red Squirrel | Tamiasciurus hudsonicus | Common | Native |
| silver-haired bat, Silver-haired Bat | Lasionycteris noctivagans | Common | Native |
| Snowshoe Hare | Lepus americanus | Common | Native |
| Southern Red-backed Vole | Clethrionomys gapperi | Common | Native |
| Striped Skunk | Mephitis mephitis | Common | Native |
| Uinta Ground Squirrel | Spermophilus armatus | Abundant | Native |
| Vagrant Shrew, wandering shrew | Sorex vagrans | Uncommon | Native |
| Western Jumping Mouse | Zapus princeps | Uncommon | Native |
| white-tailed deer, White-tailed Deer | Odocoileus virginianus | Uncommon | Unknown |
| Wolverine | Gulo gulo | Rare | Native |
| Yellow pine chipmunk | Neotamias amoenus | Common | Native |
| Yellow-bellied Marmot | Marmota flaviventris | Common | Native |
| Amphibians | Birds | Fish | Mammals | Reptiles | Plants |
Reptiles
| Reptile Name | Scientific Name | Abundance | Nativeness |
| intermountain wandering gartersnake | Thamnophis elegans vagrans | Common | Native |
| Northern Sagebrush Lizard | Sceloporus graciosus graciosus | Rare | Native |
| Rubber Boa | Charina bottae | Rare | Native |
| Valley Garter Snake | Thamnophis sirtalis fitchi | Uncommon | Native |
| Amphibians | Birds | Fish | Mammals | Reptiles | Plants |
Plants
Sticky Geranium, Grand Teton National Park, Wyoming | Photo Credit: NPS 
Sky Pilot, Grand Teton National Park, Wyoming | Photo Credit: NPS
| Plant Name | Scientific Name | Abundance | Nativeness |
| [Common Name Unknown] | Agropyron cristatum | Common | Non-native |
| [Common Name Unknown] | Agropyron cristatum var. desertorum | Uncommon | Non-native |
| [Common Name Unknown] | Alnus viridis var. sinuata | Uncommon | Native |
| [Common Name Unknown] | Alopecurus alpinus | Uncommon | Native |
| [Common Name Unknown] | Antennaria umbrinella | Uncommon | Native |
| [Common Name Unknown] | Arabis hirsuta | Uncommon | Native |
| [Common Name Unknown] | Artemisia arbuscula var. arbuscula | Common | Native |
| [Common Name Unknown] | Artemisia arbuscula var. longiloba | Uncommon | Native |
| [Common Name Unknown] | Artemisia cana var. viscidula | Uncommon | Native |
| [Common Name Unknown] | Artemisia ludoviciana var. ludoviciana | Common | Native |
| [Common Name Unknown] | Artemisia norvegica var. saxatilis | Common | Native |
| [Common Name Unknown] | Astragalus aboriginorum | Uncommon | Native |
| [Common Name Unknown] | Astragalus eucosmus | Uncommon | Native |
| [Common Name Unknown] | Astragalus shultziorum | Rare | Native |
| [Common Name Unknown] | Camassia quamash var. utahensis | Unknown | Unknown |
| [Common Name Unknown] | Carex aquatilis ssp. aquatilis | Unknown | Native |
| [Common Name Unknown] | Carex atrata | Uncommon | Native |
| [Common Name Unknown] | Carex breweri var. paddoensis | Rare | Native |
| [Common Name Unknown] | Carex deweyana var. bolanderi | Rare | Native |
| [Common Name Unknown] | Carex lenticularis var. pallida | Unknown | Unknown |
| [Common Name Unknown] | Carex microptera var. limnophila | Common | Native |
| [Common Name Unknown] | Carex nesophila | Uncommon | Native |
| [Common Name Unknown] | Carex nova var. pelocarpa | Unknown | Native |
| [Common Name Unknown] | Carex oederi var. recterostrata | Uncommon | Native |
| [Common Name Unknown] | Chaenactis alpina | Common | Native |
| [Common Name Unknown] | Chaenactis douglasii var. montana | Uncommon | Native |
| [Common Name Unknown] | Chenopodium berlandieri var. zschackii | Rare | Native |
| [Common Name Unknown] | Chenopodium rubrum var. glomeratum | Uncommon | Native |
| [Common Name Unknown] | Chrysanthemum balsamita | Occasional | Non-native |
| [Common Name Unknown] | Chrysothamnus nauseosus var. oreophilus | Uncommon | Native |
| [Common Name Unknown] | Cirsium arvense var. horridum | Common | Non-native |
| [Common Name Unknown] | Cirsium tweedyi | Uncommon | Native |
| [Common Name Unknown] | Cymopterus terebinthinus var. albiflorus | Rare | Native |
| [Common Name Unknown] | Cyperus aristatus | Rare | Native |
| [Common Name Unknown] | Cyperus rivularis | Rare | Native |
| [Common Name Unknown] | Cystopteris fragilis var. fragilis | Common | Native |
| [Common Name Unknown] | Deschampsia atropurpurea | Uncommon | Native |
| [Common Name Unknown] | Descurainia pinnata var. nelsonii | Rare | Native |
| [Common Name Unknown] | Dianthus armerioides | Rare | Non-native |
| [Common Name Unknown] | Distichlis stricta | Uncommon | Native |
| [Common Name Unknown] | Draba apiculata | Rare | Native |
| [Common Name Unknown] | Elodea longivaginata | Uncommon | Native |
| [Common Name Unknown] | Elymus elymoides var. brevifolius | Unknown | Unknown |
| [Common Name Unknown] | Elymus hispidus | Uncommon | Non-native |
| [Common Name Unknown] | Elymus hispidus var. ruthenicus | Uncommon | Non-native |
| [Common Name Unknown] | Elymus smithii | Uncommon | Native |
| [Common Name Unknown] | Epilobium alpinum | Uncommon | Native |
| [Common Name Unknown] | Epilobium angustifolium var. canescens | Common | Native |
| [Common Name Unknown] | Epilobium ciliatum var. glandulosum | Uncommon | Native |
| [Common Name Unknown] | Erigeron acris | Uncommon | Native |
| [Common Name Unknown] | Erigeron acris var. asteroides | Uncommon | Native |
| [Common Name Unknown] | Erigeron campestris | Uncommon | Native |
| [Common Name Unknown] | Erigeron compositus var. discoideus | Unknown | Unknown |
| [Common Name Unknown] | Erigeron pumilus var. concinnus | Unknown | Unknown |
| [Common Name Unknown] | Erysimum cheiranthoides ssp. altum | Unknown | Unknown |
| [Common Name Unknown] | Erysimum cheiranthoides var. altum | Rare | Non-native |
| [Common Name Unknown] | Festuca idahoensis ssp. idahoensis | Unknown | Native |
| [Common Name Unknown] | Festuca rubra var. rubra | Uncommon | Non-native |
| [Common Name Unknown] | Gentianella amarella var. amarella | Uncommon | Native |
| [Common Name Unknown] | Glycyrrhiza lepidota var. glutinosa | Uncommon | Native |
| [Common Name Unknown] | Gnaphalium microcephalum | Rare | Native |
| [Common Name Unknown] | Habenaria hyperborea | Uncommon | Native |
| [Common Name Unknown] | Habenaria saccata | Uncommon | Native |
| [Common Name Unknown] | Haplopappus macronema | Uncommon | Native |
| [Common Name Unknown] | Heterotheca depressa | Common | Native |
| [Common Name Unknown] | Hierochloe odorata | Uncommon | Native |
| [Common Name Unknown] | Hordeum brachycarpum | Common | Native |
| [Common Name Unknown] | Hordeum vulgare var. trifurcatum | Occasional | Non-native |
| [Common Name Unknown] | Hypericum formosum var. scouleri | Uncommon | Native |
| [Common Name Unknown] | Ipomopsis aggregata var. attenuata | Uncommon | Native |
| [Common Name Unknown] | Isoetes bolanderi X echinospora | Rare | Native |
| [Common Name Unknown] | Kobresia bellardii | Rare | Native |
| [Common Name Unknown] | Linum lewisii | Common | Native |
| [Common Name Unknown] | Lomatium triternatum ssp. platycarpum | Common | Native |
| [Common Name Unknown] | Lupinus argenteus var. argophyllus | Uncommon | Native |
| [Common Name Unknown] | Lupinus lepidus ssp. caespitosus | Common | Native |
| [Common Name Unknown] | Lupinus lepidus var. utahensis | Rare | Native |
| [Common Name Unknown] | Machaeranthera canescens var. monticola | Common | Native |
| [Common Name Unknown] | Mentha arvensis var. canadensis | Common | Native |
| [Common Name Unknown] | Menziesia ferruginea var. glabella | Abundant | Native |
| [Common Name Unknown] | Microsteris gracilis var. gracilis | Common | Native |
| [Common Name Unknown] | Myosotis alpestris | Uncommon | Native |
| [Common Name Unknown] | Myosurus minimus | Common | Native |
| [Common Name Unknown] | Orobanche ludoviciana var. arenosa | Rare | Native |
| [Common Name Unknown] | Orobanche uniflora var. occidentalis | Uncommon | Native |
| [Common Name Unknown] | Pedicularis parryi var. purpurea | Rare | Native |
| [Common Name Unknown] | Penstemon attenuatus var. pseudorupestris | Common | Native |
| [Common Name Unknown] | Phacelia heterophylla var. virgata | Uncommon | Native |
| [Common Name Unknown] | Phacelia sericea var. ciliosa | Common | Native |
| [Common Name Unknown] | Phacelia sericea var. sericea | Uncommon | Native |
| [Common Name Unknown] | Poa arctica var. grayana | Uncommon | Native |
| [Common Name Unknown] | Poa cusickii var. cusickii | Uncommon | Native |
| [Common Name Unknown] | Poa juncifolia | Uncommon | Native |
| [Common Name Unknown] | Poa juncifolia var. ampla | Uncommon | Native |
| [Common Name Unknown] | Poa rupicola | Uncommon | Native |
| [Common Name Unknown] | Polygonum douglasii var. austiniae | Uncommon | Native |
| [Common Name Unknown] | Polygonum kelloggii var. confertiflorum | Uncommon | Native |
| [Common Name Unknown] | Polygonum kelloggii var. kelloggii | Common | Native |
| [Common Name Unknown] | Polygonum watsonii | Uncommon | Native |
| [Common Name Unknown] | Populus acuminata | Common | Native |
| [Common Name Unknown] | Potentilla glandulosa var. pseudorupestris | Common | Native |
| [Common Name Unknown] | Potentilla palustris | Uncommon | Native |
| [Common Name Unknown] | Prunella vulgaris var. lanceolata | Uncommon | Native |
| [Common Name Unknown] | Pyrola picta var. dentata | Rare | Native |
| [Common Name Unknown] | Pyrus malus | Rare | Non-native |
| [Common Name Unknown] | Ranunculus aquatilis var. capillaceus | Abundant | Native |
| [Common Name Unknown] | Ranunculus circinatus var. subrigidus | Rare | Native |
| [Common Name Unknown] | Ranunculus cymbalaria var. alpinus | Uncommon | Native |
| [Common Name Unknown] | Ranunculus eschscholtziorum var. eschscholtziorum | Uncommon | Native |
| [Common Name Unknown] | Ranunculus natans var. intertextus | Uncommon | Native |
| [Common Name Unknown] | Ranunculus orthorhynchus ssp. platyphyllus | Rare | Native |
| [Common Name Unknown] | Rhamnus alnifolia var. alnifolia | Uncommon | Native |
| [Common Name Unknown] | Ribes oxyacanthoides var. saxosum | Uncommon | Native |
| [Common Name Unknown] | Rorippa curvipes var. alpina | Rare | Native |
| [Common Name Unknown] | Rorippa curvipes var. integra | Uncommon | Native |
| [Common Name Unknown] | Rorippa palustris var. elongata | Uncommon | Native |
| [Common Name Unknown] | Rorippa palustris var. fernaldiana | Uncommon | Native |
| [Common Name Unknown] | Rorippa palustris var. hispida | Uncommon | Native |
| [Common Name Unknown] | Rosa sayi | Uncommon | Native |
| [Common Name Unknown] | Salix planifolia var. planifolia | Uncommon | Native |
| [Common Name Unknown] | Salix wolfii X boothii | Uncommon | Native |
| [Common Name Unknown] | Salix wolfii X eastwoodii | Uncommon | Native |
| [Common Name Unknown] | Sambucus racemosa ssp. pubens | Common | Native |
| [Common Name Unknown] | Saxifraga adscendens var. oregonensis | Uncommon | Native |
| [Common Name Unknown] | Saxifraga flagellaris var. crandallii | Rare | Native |
| [Common Name Unknown] | Scirpus pungens var. polyphyllus | Uncommon | Native |
| [Common Name Unknown] | Sedum debile var. debile | Rare | Native |
| [Common Name Unknown] | Senecio werneriifolius var. alpinus | Rare | Native |
| [Common Name Unknown] | Solidago glutinosa | Uncommon | Native |
| [Common Name Unknown] | Solidago missouriensis var. extraria | Uncommon | Native |
| [Common Name Unknown] | Solidago simplex ssp. simplex var. spathulata | Uncommon | Native |
| [Common Name Unknown] | Sonchus uliginosus | Uncommon | Non-native |
| [Common Name Unknown] | Sparganium minimum | Rare | Native |
| [Common Name Unknown] | Spraguea umbellata var. caudicifera | Uncommon | Native |
| [Common Name Unknown] | Symphyotrichum lanceolatum ssp. hesperium var. hesperium | Common | Native |
| [Common Name Unknown] | Tragopogon lamottei | Unknown | Non-native |
| [Common Name Unknown] | Triglochin maritimum var. elatum | Uncommon | Native |
| [Common Name Unknown] | Urtica dioica var. occidentalis | Uncommon | Native |
| [Common Name Unknown] | Vicia americana var. americana | Uncommon | Native |
| [Common Name Unknown] | Viola macloskeyi var. pallens | Rare | Native |
| [Common Name Unknown] | Viola praemorsa var. altior | Unknown | Native |
| [Common Name Unknown] | Viola renifolia var. brainerdii | Common | Native |
| a holboell rock-cress, second rockcress | Arabis holboellii var. retrofracta | Unknown | Native |
| absinth sagewort, absinth wormwood, absinthium, common sagewort | Artemisia absinthium | Uncommon | Non-native |
| Alaska bog orchid | Piperia unalascensis | Uncommon | Native |
| Alaska oniongrass | Melica subulata | Uncommon | Native |
| alaska oniongrass, purple oniongrass | Melica spectabilis | Abundant | Native |
| Alaskan wheatgrass | Elymus alaskanus ssp. latiglumis | Unknown | Native |
| alder | Alnus incana var. occidentalis | Common | Native |
| alder buckthorn | Rhamnus alnifolia | Uncommon | Native |
| alfalfa dodder, smallseed alfalfa dodder, smoothseed alfalfa dodder | Cuscuta approximata | Uncommon | Non-native |
| alkalai grass | Torreyochloa pallida var. fernaldii | Rare | Native |
| alkali buttercup, shore buttercup | Ranunculus cymbalaria | Unknown | Native |
| alkali muhly, scratchgrass | Muhlenbergia asperifolia | Uncommon | Native |
| alpine aster, tundra aster | Oreostemma alpigenum | Common | Native |
| alpine avens | Geum rossii var. turbinatum | Uncommon | Native |
| alpine bentgrass, mountain bent grass | Agrostis humilis | Uncommon | Native |
| alpine bentgrass, Thurber bentgrass | Agrostis thurberiana | Rare | Native |
| alpine besseya | Besseya alpina | Uncommon | Native |
| alpine bistort | Polygonum viviparum | Uncommon | Native |
| alpine bitterroot, alpine lewisia, pigmy bitterroot | Lewisia pygmaea | Uncommon | Native |
| alpine bladderpod | Lesquerella alpina var. alpina | Uncommon | Native |
| alpine bluebells, mountain bluebell, sagebrush bluebell | Mertensia viridis | Uncommon | Native |
| alpine bluegrass | Poa alpina | Common | Native |
| alpine bluegrass, annual bluegrass | Poa annua | Uncommon | Non-native |
| alpine bog laurel, alpine laurel | Kalmia microphylla | Uncommon | Native |
| alpine brook saxifrage, pygmy saxifrage, weak saxifrage | Saxifraga rivularis | Rare | Native |
| alpine circaea, small enchanter’s nightshade, small enchanter’s-nightshade | Circaea alpina | Uncommon | Native |
| alpine dandelion, harp dandelion, rock dandelion | Taraxacum lyratum | Unknown | Native |
| alpine dustymaiden, alpine pincushion | Chaenactis douglasii var. alpina | Unknown | Native |
| alpine fescue | Festuca brachyphylla | Common | Native |
| alpine forget-me not, alpine forget-me-not | Eritrichium nanum var. elongatum | Uncommon | Native |
| alpine forget-me-not, Asian forget-me-not | Myosotis asiatica | Occasional | Unknown |
| alpine groundsel, showy alpine groundsel, showy alpine ragwort | Senecio amplectens | Rare | Native |
| alpine ladyfern | Athyrium americanum | Uncommon | Native |
| alpine laurel | Kalmia microphylla var. microphylla | Unknown | Unknown |
| alpine leafy bract aster, oregon fleabane | Erigeron speciosus | Common | Native |
| alpine leafybract aster | Symphyotrichum foliaceum | Abundant | Native |
| alpine leafybract aster | Symphyotrichum foliaceum var. apricum | Unknown | Native |
| alpine lily, alplily, common alplily | Lloydia serotina | Uncommon | Native |
| alpine milkvetch | Astragalus alpinus | Uncommon | Native |
| alpine milkvetch | Astragalus alpinus var. alpinus | Unknown | Native |
| alpine milkvetch, nodding locoweed | Oxytropis deflexa var. foliolosa | Uncommon | Native |
| alpine nerve sedge, alpine nerved sedge, alpinenerved sedge | Carex neurophora | Common | Native |
| alpine pennycress | Noccaea montana var. montana | Unknown | Native |
| alpine pennycress, alpine pennygrass | Thlaspi montanum | Uncommon | Native |
| alpine pussytoes | Antennaria alpina | Common | Native |
| alpine pussytoes, Rocky Mountain pussytoes | Antennaria media | Uncommon | Native |
| alpine sagebrush, sagebrush | Artemisia scopulorum | Uncommon | Native |
| alpine sorrel | Rumex paucifolius | Common | Native |
| alpine speedwell, thyme-leaf speedwell, water speedwell | Veronica wormskjoldii | Uncommon | Native |
| alpine springbeauty | Claytonia megarhiza | Rare | Native |
| alpine springbeauty | Claytonia megarhiza var. megarhiza | Unknown | Native |
| alpine timothy | Phleum alpinum | Common | Native |
| alpine willow | Salix petrophila | Common | Native |
| alpine willow-herb | Epilobium clavatum | Uncommon | Native |
| alpine wintergreen | Gaultheria humifusa | Uncommon | Native |
| alpine yellowcress | Rorippa alpina | Unknown | Native |
| alpinebog swertia, felwort, star gentian | Swertia perennis | Uncommon | Native |
| alsike clover, white clover | Trifolium hybridum | Uncommon | Non-native |
| alsike clover, white clover | Trifolium repens | Uncommon | Non-native |
| altramuz perenne, bigleaf lupine, garden lupine, marsh lupine, Washington lupine | Lupinus polyphyllus | Uncommon | Native |
| alumroot brookfoam | Telesonix heucheriformis | Uncommon | Native |
| American alpine sweetvetch | Hedysarum alpinum var. americanum | Common | Native |
| American awlwort, waterawlwort | Subularia aquatica | Uncommon | Native |
| American bistort | Polygonum bistortoides | Common | Native |
| American brooklime, American brookline | Veronica americana | Common | Native |
| American deervetch, American purple vetch, American vetch | Vicia americana | Common | Native |
| American false candytuft | Smelowskia calycina var. americana | Uncommon | Native |
| American globeflower | Trollius laxus ssp. albiflorus | Uncommon | Native |
| American licorice | Glycyrrhiza lepidota var. lepidota | Uncommon | Native |
| American licorice, licorice, wild licorice | Glycyrrhiza lepidota | Common | Native |
| American mannagrass, manna grass | Glyceria grandis | Uncommon | Native |
| American milfoil, water milfoil | Myriophyllum sibiricum | Uncommon | Native |
| American red raspberry, common red raspberry, western red raspberry | Rubus idaeus | Common | Native |
| American sloughgrass | Beckmannia syzigachne | Uncommon | Native |
| American Thoroughwax, none | Bupleurum americanum | Uncommon | Native |
| American vetch | Vicia americana var. minor | Uncommon | Native |
| analogue sedge, shortbeak sedge | Carex simulata | Uncommon | Native |
| anemone, globeflower, Teton anemone | Anemone multifida var. multifida | Uncommon | Native |
| anemone, Teton anemone | Anemone tetonensis | Uncommon | Native |
| Angelica, licorice-flavored sw. cicely, Sweet Cicely | Osmorhiza occidentalis | Common | Native |
| Angelica, pinnate angelica | Angelica pinnata | Uncommon | Native |
| Angelica, sharptooth angelica | Angelica arguta | Common | Native |
| annual gentian, autumn dwarf gentian, autumn dwarfgentian, autumn dwarf-gentian | Gentianella amarella | Common | Native |
| annual hairgrass | Deschampsia danthonioides | Uncommon | Native |
| annual ragweed, common ragweed, low ragweed, ragweed, Roman wormwood, short ragweed, small ragweed | Ambrosia artemisiifolia | Common | Non-native |
| annual sowthistle, common sowthistle, common sow-thistle, pualele, sow thistle, sow-thistle | Sonchus oleraceus | Uncommon | Non-native |
| annual sunflower, common sunflower, sunflower, wild sunflower | Helianthus annuus | Common | Native |
| antelope bitterbrush | Purshia tridentata | Common | Native |
| arctic bentgrass, northern bentgrass | Agrostis mertensii | Unknown | Native |
| arctic bluegrass | Poa arctica | Common | Native |
| arctic draba, Austrian draba | Draba fladnizensis | Uncommon | Native |
| arctic pearlwort | Sagina saginoides | Uncommon | Native |
| arctic pearlwort, arctic sandwort, Nuttall sandwort | Minuartia obtusiloba | Uncommon | Native |
| arctic willow | Salix glauca var. villosa | Uncommon | Native |
| arctic willow, willow | Salix arctica var. petraea | Uncommon | Native |
| arnica | Arnica sororia | Common | Native |
| arrow-grass, seaside arrowgrass | Triglochin maritima | Unknown | Native |
| arrowhead | Sagittaria cuneata | Uncommon | Native |
| arrowleaf balsamroot, Balsamroot | Balsamorhiza sagittata | Common | Native |
| arrowleaf groundsel, Groundsel | Senecio triangularis | Common | Native |
| ashy goldenrod, soft goldenrod, velvety goldenrod, woolly goldenrod | Solidago mollis | Uncommon | Native |
| aster | Aster foliaceus var. parryi | Abundant | Native |
| autumn waterstarwort, autumn water-starwort, northern waterstarwort, northern water-starwort, scarlet waterstarwort | Callitriche hermaphroditica | Unknown | Native |
| awlleaf mudwort, awl-leaf mudwort, northern mudwort, water mudwort | Limosella aquatica | Uncommon | Native |
| awned flat sedge, bearded flatsedge, bearded nutgrass | Cyperus squarrosus | Unknown | Native |
| awnless brome, smooth brome | Bromus inermis | Abundant | Non-native |
| baby pondweed, small pondweed | Potamogeton pusillus | Uncommon | Native |
| Back’s sedge, rocky mountain sedge | Carex backii | Uncommon | Native |
| Baffin fescue | Festuca baffinensis | Rare | Native |
| bald brome | Bromus racemosus | Unknown | Non-native |
| ballhead ragwort, marsh groundsel | Senecio sphaerocephalus | Uncommon | Native |
| ballhead waterleaf | Hydrophyllum capitatum | Abundant | Native |
| ballhead waterleaf | Hydrophyllum capitatum var. capitatum | Common | Native |
| balsam groundsel | Packera paupercula | Common | Native |
| balsam groundsel, groundsel | Senecio streptanthifolius var. streptanthifolius | Uncommon | Native |
| balsam poplar | Populus balsamifera | Abundant | Native |
| balsam poplar | Populus balsamifera ssp. balsamifera | Unknown | Native |
| balsam poplar, black cottonwood | Populus balsamifera ssp. trichocarpa | Unknown | Native |
| Barbey larkspur, subalpine larkspur, tall larkspur | Delphinium barbeyi | Uncommon | Native |
| Barclay’s willow | Salix barclayi | Uncommon | Native |
| barrenground willow, shortfruit willow | Salix brachycarpa | Common | Native |
| basin cryptantha, Wickes cryptantha, Wilkes cryptantha | Cryptantha ambigua | Uncommon | Native |
| bastard toadflax, Sandalwood, toadflax | Comandra umbellata var. pallida | Unknown | Unknown |
| beaked spikerush | Eleocharis rostellata | Unknown | Unknown |
| Bear River fleabane, fleabane | Erigeron ursinus | Uncommon | Native |
| bearberry, bearberry manzanita, kinnikinnick, mealberry | Arctostaphylos uva-ursi | Common | Native |
| bearberry; kinnikinnick | Arctostaphylos uva-ursi var. stipitata | Uncommon | Native |
| bearded fescue, nodding fescue | Festuca subulata | Uncommon | Native |
| bearded wheatgrass | Elymus trachycaulus var. andinus | Uncommon | Native |
| bearded wheatgrass, rye grass, slender wheatgrass, wheatgrass | Elymus trachycaulus var. trachycaulus | Common | Native |
| beardless trisetum | Trisetum wolfii | Uncommon | Native |
| Beardless Trisetum, cliff reedgrass, pinegrass, reedgrass, Scribner reedgrass | Calamagrostis rubescens | Abundant | Native |
| beargrass | Xerophyllum tenax | Occasional | Native |
| beautiful cinquefoil, soft cinquefoil, whiteleaf cinquefoil | Potentilla pulcherrima | Common | Native |
| beautiful paintbrush | Castilleja pulchella | Uncommon | Native |
| beautiful sandwort, boreal stitchwort | Minuartia rubella | Uncommon | Native |
| beautiful spikerush | Eleocharis bella | Rare | Native |
| Bebb sedge, Bebb’s sedge | Carex bebbii | Rare | Native |
| Bebb willow | Salix bebbiana var. bebbiana | Common | Native |
| Bebb’s willow, gray willow | Salix bebbiana | Common | Native |
| bedstraw, catchweed bedstraw | Galium aparine var. echinospermum | Unknown | Unknown |
| bedstraw, catchweed bedstraw, cleavers, cleaverwort, goose grass, scarthgrass, stickywilly, sticky-willy, white hedge | Galium aparine | Common | Native |
| bella honeysuckle, Bell’s honeysuckle, showy fly honeysuckle, whitebell honeysuckle | Lonicera X bella | Unknown | Non-native |
| Bering chickweed | Cerastium beeringianum ssp. earlei | Unknown | Native |
| besseya, Wyoming kittentails | Besseya wyomingensis | Uncommon | Native |
| Bicknell’s cranesbill, northern crane’s-bill | Geranium bicknellii | Unknown | Unknown |
| biennial forget-me-not, forget-me-not, meadow forget-me-not, stickseed | Hackelia micrantha | Uncommon | Native |
| biennial forget-me-not, hawkweed, houndstongue hawkweed | Hieracium cynoglossoides | Abundant | Native |
| biennial forget-me-not, stickseed | Hackelia floribunda | Uncommon | Native |
| biennial sagewort, biennial wormwood | Artemisia biennis | Uncommon | Native |
| biennial wormwood | Artemisia biennis var. biennis | Uncommon | Native |
| big bluegrass, Sandberg bluegrass, Sandberg’s bluegrass | Poa secunda | Abundant | Native |
| big reedgrass, bluejoint | Calamagrostis canadensis var. canadensis | Common | Native |
| big sagebrush, low sagebrush | Artemisia tridentata var. vaseyana | Abundant | Native |
| big sagebrush, subalpine big sagebrush | Artemisia tridentata ssp. spiciformis | Common | Native |
| bigflower cinquefoil | Potentilla fissa | Uncommon | Native |
| bigflower groundsmoke, spreading groundsmoke | Gayophytum diffusum | Common | Native |
| bigseed pepperweed | Lepidium densiflorum var. macrocarpum | Uncommon | Native |
| bilobed speedwell, twolobe speedwell, twolobed speedwell | Veronica biloba | Uncommon | Non-native |
| birch, glandular birch | Betula glandulosa | Uncommon | Native |
| birch, water birch | Betula occidentalis | Common | Native |
| birdfoot deervetch, birdsfoot trefoil, bird’s-foot trefoil, bloomfell, cat’s clover, crowtoes, garden birdsfoot trefoil, garden bird’s-foot-trefoil, ground honeysuckle | Lotus corniculatus | Rare | Non-native |
| biscuitroot, lacy lomatium | Lomatium ambiguum | Common | Native |
| Biscuitroot, Yampah | Perideridia montana | Abundant | Native |
| bitter fleabane | Erigeron acris var. debilis | Rare | Native |
| Bittercress, water cress, Watercress | Cardamine breweri var. breweri | Unknown | Unknown |
| black alpine sedge | Carex nigricans | Uncommon | Native |
| black alpine sedge, sedge | Carex disperma | Rare | Native |
| black currant, northern black currant | Ribes hudsonianum | Common | Native |
| black elderberry, red elderberry, Rocky Mountain elder | Sambucus racemosa var. melanocarpa | Common | Native |
| black greasewood, greasewood | Sarcobatus vermiculatus | Uncommon | Native |
| black hawthorn, river hawthorn | Crataegus douglasii | Common | Native |
| black henbane | Hyoscyamus niger | Rare | Non-native |
| black medic | Medicago lupulina | Common | Non-native |
| black medic, common alfalfa | Medicago sativa | Common | Non-native |
| black sagebrush | Artemisia nova | Unknown | Unknown |
| black sedge, new sedge | Carex nova | Common | Native |
| blackandwhite sedge, black-and-white sedge | Carex albonigra | Uncommon | Native |
| blackcreeper sedge, capitate sedge, Hood sedge, sedge, Slender-beaked Sedge | Carex hoodii | Uncommon | Native |
| blackcreeper sedge, Hood sedge, rush, sedge, timber oatgrass | Carex praegracilis | Uncommon | Native |
| blackened sedge | Carex atrata var. chalciolepis | Unknown | Unknown |
| bladder campion, bladder silene, cowbell, maiden’s tears, maidenstears, maiden’s-tears, rattleweed | Silene vulgaris | Uncommon | Native |
| bladderpod, Payson bladderpod | Lesquerella paysonii | Uncommon | Native |
| bladderwort, common bladderwort | Utricularia vulgaris | Uncommon | Native |
| blister buttercup | Ranunculus sceleratus var. multifidus | Uncommon | Native |
| blister sedge, inflated sedge | Carex vesicaria | Common | Native |
| blue Douglas-fir, Colorado Douglas-fir, Douglas-fir, inland Douglas-fir, Rocky Mountain Douglas-fir | Pseudotsuga menziesii var. glauca | Abundant | Native |
| blue lettuce, chicory lettuce, Russian blue lettuce | Lactuca tatarica | Uncommon | Native |
| blue lettuce, lettuce | Lactuca oblongifolia | Uncommon | Native |
| blue sailors, chickory, chicory, coffeeweed, common chicory, French endive, succory | Cichorium intybus | Unknown | Unknown |
| blue spruce, Spruce | Picea pungens | Common | Native |
| blue violet | Viola adunca | Common | Native |
| blue water speedwell, water speedwell | Veronica anagallis-aquatica | Uncommon | Native |
| blue wild rye, blue wildrye | Elymus glaucus | Abundant | Native |
| bluebunch wheatgrass, bluebunch-wheat grass | Pseudoroegneria spicata | Common | Native |
| bluebunch wheatgrass, bluebunch-wheat grass | Pseudoroegneria spicata ssp. spicata | Unknown | Native |
| blue-eyed grass, Idaho blue-eyed grass | Sisyrinchium idahoense var. occidentale | Uncommon | Native |
| blue-eyed mary | Collinsia parviflora | Abundant | Native |
| blueflowered penstemon, smooth penstemon | Penstemon cyaneus | Uncommon | Native |
| bluegrass sp. | Poa nevadensis | Uncommon | Native |
| bluegrass, bluegrass sp., curly bluegrass, sanberg bluegrass | Poa secunda var. elongata | Uncommon | Native |
| bluegrass, cusick bluegrass, mutton bluegrass, mutton grass | Poa cusickii var. epilis | Uncommon | Native |
| bluegrass, mutton bluegrass, mutton grass, wheeler bluegrass | Poa fendleriana | Common | Native |
| blunt sweet cicely, Chilean sweet cicely, Sweet cicely, Sweet Cicely,O.obtusa | Osmorhiza depauperata | Uncommon | Native |
| bluntleaf pondweed | Potamogeton obtusifolius | Rare | Native |
| bluntleaf sandwort, northern starwort, starwort | Moehringia lateriflora | Uncommon | Native |
| bluntleaf yellowcress, blunt-leaf yellowcress | Rorippa curvipes | Common | Native |
| bog birch, dwarf birch, shrub birch | Betula nana | Uncommon | Native |
| bog bluegrass | Poa leptocoma | Uncommon | Native |
| bog violet | Viola nephrophylla | Uncommon | Native |
| bog wintergreen, liverleaf wintergreen, pink wintergreen | Pyrola asarifolia | Common | Native |
| bog-bean, buckbean, buck-bean, common bogbean | Menyanthes trifoliata | Uncommon | Native |
| Bolander’s quillwort | Isoetes bolanderi | Abundant | Native |
| Bolander’s yampah | Perideridia bolanderi ssp. bolanderi | Rare | Native |
| Bonneville shootingstar | Dodecatheon conjugens | Uncommon | Native |
| Bonneville shootingstar | Dodecatheon conjugens ssp. conjugens | Unknown | Native |
| boreal bog orchid, scentbottle, white bog orchid | Platanthera dilatata | Common | Native |
| boreal draba | Draba borealis | Rare | Native |
| boreal starwort | Stellaria borealis ssp. borealis | Uncommon | Native |
| boreal sweetvetch, boreal sweet-vetch, northern sweetvetch, sweetvetch, Utah sweetvetch | Hedysarum boreale | Uncommon | Native |
| bottlebrush squirreltail, squirreltail, western bottle-brush grass | Elymus elymoides | Common | Native |
| bouncing bet, pinks | Saponaria officinalis | Rare | Non-native |
| bracken fern | Pteridium aquilinum var. pubescens | Common | Native |
| bracken, bracken fern, brackenfern, northern bracken fern, western brackenfern | Pteridium aquilinum | Abundant | Native |
| bract aster | Aster bracteolatus | Uncommon | Native |
| bracted lousewort, lousewort | Pedicularis bracteosa var. paysoniana | Common | Native |
| Brewer bittercress, Brewer’s bittercress | Cardamine breweri | Common | Native |
| Brewer’s monkeyflower | Mimulus breweri | Uncommon | Native |
| bristlestalked sedge, bristly-stalk sedge, bristlystalked sedge | Carex leptalea | Rare | Native |
| bristly buttercup, Pennsylvania buttercup | Ranunculus pensylvanicus | Unknown | Native |
| bristly Nootka rose | Rosa nutkana var. hispida | Common | Native |
| brittle cactus, brittle pricklypear, fragile cactus, jumping cactus, little pricklypear | Opuntia fragilis | Uncommon | Native |
| broad waterweed, Canada waterweed, Canadian waterweed | Elodea canadensis | Uncommon | Native |
| broadleaf arnica | Arnica latifolia | Common | Native |
| broadleaf arnica, hairy arnica, longleaf arnica | Arnica gracilis | Uncommon | Native |
| broadleaf knotweed, dwarf knotweed, zigzag knotweed | Polygonum minimum | Uncommon | Native |
| broadleaf willowweed, milkflower willowherb, white-flower willowherb | Epilobium lactiflorum | Uncommon | Native |
| broad-lipped twayblade | Listera convallarioides | Uncommon | Native |
| broad-lipped twayblade, western twayblade | Listera caurina | Uncommon | Native |
| broadscale sedge | Carex platylepis | Unknown | Native |
| bromegrass, California brome | Bromus carinatus | Common | Native |
| bromegrass, Canada reedgrass, mountain hairgrass | Calamagrostis canadensis | Unknown | Unknown |
| bromegrass, cheatgrass | Bromus tectorum | Uncommon | Native |
| brook saxifrage, dotted saxifrage | Saxifraga odontoloma | Common | Native |
| broom snakeweed, snakeweed | Gutierrezia sarothrae | Uncommon | Native |
| brown bog sedge, Buxbaum sedge, Buxbaum’s sedge | Carex buxbaumii | Uncommon | Native |
| brownish sedge | Carex brunnescens | Uncommon | Native |
| brownish sedge | Carex brunnescens ssp. brunnescens | Unknown | Unknown |
| Browns peony | Paeonia brownii | Rare | Native |
| browse milkvetch | Astragalus cibarius | Uncommon | Native |
| browse milkvetch, nodding locoweed | Astragalus terminalis | Rare | Native |
| buff fleabane | Erigeron ochroleucus | Common | Native |
| buff fleabane | Erigeron ochroleucus var. scribneri | Unknown | Native |
| bulbiferous fringecup | Lithophragma glabrum var. ramulosum | Uncommon | Native |
| bulbous bluegrass | Poa bulbosa | Uncommon | Non-native |
| bulbous oniongrass, oniongrass | Melica bulbosa | Uncommon | Native |
| bulbous woodland-star, smooth woodland-star | Lithophragma glabrum | Uncommon | Native |
| bull thistle | Cirsium subniveum | Uncommon | Native |
| bull thistle, common thistle, spear thistle | Cirsium vulgare | Common | Non-native |
| bulrush | Scirpus microcarpus | Uncommon | Native |
| bunchberry elder, red elderberry | Sambucus racemosa var. racemosa | Common | Native |
| Burk larkspur | Delphinium burkei | Uncommon | Native |
| bur-reed, narrowleaved bur-reed | Sparganium emersum | Uncommon | Native |
| burweed marshelder, carelessweed, false ragweed, giant marshelder, giant sumpweed, horseweed, marshelder, rag sumpweed | Iva xanthifolia | Common | Non-native |
| bush blazing star | Mentzelia dispersa | Uncommon | Native |
| bush honeysuckle, Tatarian honeysuckle | Lonicera tatarica | Occasional | Non-native |
| bush-clover dodder, field dodder, fiveangle dodder, fiveangled dodder | Cuscuta pentagona var. pentagona | Uncommon | Native |
| bushy birds beak | Cordylanthus ramosus | Uncommon | Native |
| butter-and-eggs | Linaria vulgaris | Common | Non-native |
| buttercup | Ranunculus adoneus | Uncommon | Native |
| buttercup | Ranunculus eschscholtzii var. eschscholtzii | Uncommon | Native |
| buttonweed, cheeseplant, cheeseweed, common mallow, dwarf mallow, roundleaf mallow | Malva neglecta | Uncommon | Non-native |
| California false hellebore | Veratrum californicum | Common | Native |
| California nettle, stinging nettle | Urtica dioica ssp. gracilis | Common | Native |
| California oatgrass | Danthonia californica | Uncommon | Native |
| Canada bluegrass, flat-stem blue grass | Poa compressa | Uncommon | Native |
| Canada cocklebur, Canada cockleburr, cocklebur, common cocklebur, rough cocklebur, rough cockleburr | Xanthium strumarium var. canadense | Uncommon | Non-native |
| canada goldenrod | Solidago canadensis var. salebrosa | Uncommon | Native |
| Canada horseweed, Canadian horseweed, horseweed, horseweed fleabane, mares tail, marestail | Conyza canadensis | Rare | Native |
| Canada reedgrass, narrow-spiked reedgrass | Calamagrostis inexpansa | Uncommon | Native |
| Canada thistle | Cirsium arvense | Unknown | Unknown |
| Canada violet, Canadian white violet | Viola canadensis | Common | Native |
| Canada wildrye | Elymus canadensis | Uncommon | Native |
| Canadian gooseberry | Ribes oxyacanthoides | Uncommon | Native |
| Canadian milkvetch, Canadian milk-vetch | Astragalus canadensis var. canadensis | Uncommon | Native |
| Canadian single-spike sedge, downy sedge, northern singlespike sedge | Carex scirpoidea | Uncommon | Native |
| Canby’s aster | Aster foliaceus var. canbyi | Common | Native |
| Canby’s aster | Symphyotrichum foliaceum var. canbyi | Unknown | Native |
| caraway, wild caraway | Carum carvi | Uncommon | Non-native |
| careless weed, redroot amaranth, red-root amaranth, redroot pigweed, rough pigweed | Amaranthus retroflexus | Common | Non-native |
| Carolina draba, Carolina whitlowgrass, creeping draba | Draba reptans | Unknown | Native |
| carpet phlox, phlox | Phlox hoodii | Common | Native |
| catchfly, Oregon silene, Parry campion, Scouler’s silene | Silene parryi | Uncommon | Native |
| catmint, catnip, catwort, field balm | Nepeta cataria | Rare | Non-native |
| Chamisso arnica | Arnica chamissonis var. andina | Unknown | Native |
| chamisso arnica | Arnica chamissonis var. foliosa | Uncommon | Native |
| chamisso sedge, thickhead sedge | Carex pachystachya | Uncommon | Native |
| Chamisso’s cottongrass, Chamisso’s cotton-grass, russet cottonsedge | Eriophorum chamissonis | Uncommon | Native |
| chamomile, dog fennel, dogfennel, mayweed, mayweed chamomile, mayweed dogfennel, stinking chamomile, stinkweed | Anthemis cotula | Occasional | Non-native |
| China aster | Callistephus chinensis | Occasional | Unknown |
| China tamarisk, Chinese saltcedar, Chinese tamarisk, fivestamen tamarisk, five-stamen tamarisk, saltcedar, tamarisk, tamarix | Tamarix chinensis | Rare | Non-native |
| chive, shortstyle onion | Allium schoenoprasum | Uncommon | Native |
| chokecherry | Prunus virginiana var. melanocarpa | Abundant | Native |
| chorispora | Chorispora tenella | Uncommon | Non-native |
| cigue maculee, cigue tachetee, deadly hemlock, poison hemlock, poison parsley, poison-hemlock | Conium maculatum | Unknown | Unknown |
| cinquefoil | Potentilla gracilis var. pulcherrima | Common | Native |
| cinquefoil, showy cinquefoil, varileaf cinquefoil | Potentilla diversifolia var. diversifolia | Uncommon | Native |
| clasping pepperweed, Peppergrass | Lepidium perfoliatum | Uncommon | Non-native |
| clasping twisted stalk | Streptopus amplexifolius | Common | Native |
| claspingleaf wild cabbage | Caulanthus amplexicaulis var. amplexicaulis | Uncommon | Native |
| cleftleaf groundsel, Rocky Mountain groundsel | Packera streptanthifolia | Abundant | Native |
| cliff brake fern | Pellaea breweri | Rare | Native |
| cloud sedge, Hayden sedge, Hayden’s sedge | Carex haydeniana | Uncommon | Native |
| cloud sedge, Slender-beaked Sedge | Carex athrostachya | Uncommon | Native |
| club spikemoss, clubmoss, northern spikemoss | Selaginella selaginoides | Rare | Native |
| clubmoss, stiff club moss, stiff clubmoss | Lycopodium annotinum | Unknown | Native |
| cluster tarweed, Tarweed | Madia glomerata | Common | Native |
| clustered broomrape | Orobanche fasciculata | Uncommon | Native |
| clustered wheat grass, desert wheatgrass | Agropyron desertorum | Unknown | Non-native |
| coast willowweed | Epilobium ciliatum var. ciliatum | Common | Native |
| coast willowweed, fringed willowherb | Epilobium ciliatum ssp. ciliatum | Unknown | Native |
| coastal sand sedge | Carex incurviformis var. danaensis | Unknown | Native |
| Collins’ rockcress, Holboell’s rockcress | Arabis holboellii var. collinsii | Unknown | Native |
| colonial bent, colonial bentgrass | Agrostis capillaris | Uncommon | Native |
| Colorado blue columbine | Aquilegia coerulea | Common | Native |
| Colorado blue columbine | Aquilegia coerulea var. coerulea | Common | Native |
| Colorado fescue | Festuca brachyphylla ssp. coloradensis | Uncommon | Native |
| Colorado rush, rush | Juncus confusus | Common | Native |
| Columbia brome | Bromus vulgaris | Common | Native |
| Columbia groundsel, Columbia ragwort | Senecio integerrimus var. exaltatus | Common | Native |
| Columbia monkshood | Aconitum columbianum var. columbianum | Common | Native |
| Columbia needlegrass, Dore’s needlegrass | Achnatherum nelsonii ssp. dorei | Unknown | Native |
| Columbia needlegrass, Nelson achnatherum | Achnatherum nelsonii | Common | Native |
| Columbia needlegrass, Nelson needlegrass | Achnatherum nelsonii ssp. nelsonii | Unknown | Native |
| Columbian monkshood | Aconitum columbianum | Abundant | Native |
| Columbian monkshood | Aconitum columbianum ssp. columbianum | Unknown | Native |
| Columbian stitchwort | Minuartia austromontana | Rare | Native |
| Columbian virgin’s-bower, rock clematis | Clematis columbiana | Occasional | Native |
| common alplily | Lloydia serotina var. serotina | Unknown | Native |
| common alumroot | Heuchera parvifolia | Common | Native |
| common barley | Hordeum vulgare var. vulgare | Common | Non-native |
| common bladderpod, common bladderwort, greater bladderwort | Utricularia macrorhiza | Unknown | Native |
| common camas, small camas | Camassia quamash | Common | Native |
| Common Cattail, narrow-leaved cattail | Typha latifolia | Uncommon | Native |
| common dandelion | Taraxacum officinale | Common | Non-native |
| Common Dandelion | Taraxacum officinale ssp. officinale | Unknown | Non-native |
| common dandelion, dandelion, red-fruited dandelion | Taraxacum laevigatum | Uncommon | Non-native |
| common dandelion, fleshy dandelion, horned dandelion, rough dandelion | Taraxacum officinale ssp. ceratophorum | Unknown | Native |
| common dogbane, dogbane, hemp dogbane, Indian hemp, Indian-hemp, prairie dogbane | Apocynum cannabinum | Uncommon | Native |
| common evening primrose, evening primrose, Hooker’s evening primrose | Oenothera villosa var. strigosa | Common | Non-native |
| common gaillardia, gaillardia, great blanket-flower | Gaillardia aristata | Uncommon | Native |
| common gypsyweed | Veronica officinalis | Occasional | Non-native |
| common hawksbeard, Modoc hawksbeard, Siskiyou hawksbeard | Crepis modocensis | Rare | Native |
| common hop, common hops | Humulus lupulus var. neomexicanus | Rare | Non-native |
| common hornwort, hornwort | Ceratophyllum demersum | Uncommon | Native |
| common houndstongue, gypsyflower, gypsy-flower, hound’s tongue, houndstongue | Cynoglossum officinale | Common | Non-native |
| common lambsquarters, lambsquarters, lambsquarters goosefoot, white goosefoot | Chenopodium album | Common | Non-native |
| common lilac | Syringa vulgaris | Occasional | Non-native |
| common monkeyflower, seep monkeyflower | Mimulus guttatus | Abundant | Native |
| common mullein | Verbascum thapsus | Common | Non-native |
| common oat, Common oats, oat, oatgrass (common), oats, wild oats | Avena sativa | Occasional | Non-native |
| common pepperweed, miner’s pepperwort | Lepidium densiflorum var. densiflorum | Uncommon | Native |
| common pipsissewa, pipsissewa or Prince’s pine | Chimaphila umbellata var. occidentalis | Unknown | Unknown |
| common plantain | Plantago major | Uncommon | Non-native |
| common prickly gilia, granite gilia, granite prickly gilia, granite prickly phlox | Leptodactylon pungens | Uncommon | Native |
| common red raspberry, grayleaf raspberry, grayleaf red raspberry, red raspberry | Rubus idaeus ssp. strigosus | Unknown | Native |
| common reed | Phragmites australis | Uncommon | Native |
| common sainfoin, sainfoin | Onobrychis viciifolia | Uncommon | Non-native |
| common salsify, goatsbeard, purple salsify, salsify | Tragopogon porrifolius | Uncommon | Non-native |
| common selfheal, heal all, healall, selfheal | Prunella vulgaris | Abundant | Native |
| common snowberry | Symphoricarpos albus | Abundant | Native |
| common snowberry | Symphoricarpos albus var. laevigatus | Uncommon | Native |
| common St. Johnwort | Hypericum perforatum | Common | Non-native |
| common stickseed, spotted stickseed | Hackelia patens | Uncommon | Native |
| common tansy | Tanacetum vulgare | Uncommon | Non-native |
| common timothy, timothy | Phleum pratense | Abundant | Non-native |
| common Townsend daisy, common townsendia | Townsendia leptotes | Uncommon | Native |
| common twinpod | Physaria didymocarpa | Uncommon | Native |
| common twinpod | Physaria didymocarpa var. didymocarpa | Unknown | Native |
| common waternymph, Guadalupe waternymph, southern naiad, southern waternymph | Najas guadalupensis | Uncommon | Native |
| common woodrush, common wood-rush | Luzula multiflora | Unknown | Native |
| common yampah | Perideridia gairdneri ssp. borealis | Unknown | Native |
| conjested sandwort | Arenaria congesta var. congesta | Common | Native |
| contracted ricegrass | Achnatherum contractum | Uncommon | Native |
| cordilleran valerian, sharpleaf valerian | Valeriana acutiloba | Common | Native |
| Cordilleran valerian, taprooted valerian, western valerian | Valeriana occidentalis | Common | Native |
| cordroot beardtongue | Penstemon montanus | Common | Native |
| cordroot penstemon, taper-leaved penstemon, Whipple penstemon | Penstemon attenuatus var. pseudoprocerus | Common | Native |
| corn brome | Bromus squarrosus | Uncommon | Non-native |
| cotton-grass | Eriophorum polystachion | Rare | Native |
| cotton-grass, Creeping Spikerush, spikerush | Eleocharis palustris | Common | Native |
| Cous Lomatium | Lomatium cous | Common | Native |
| cow parsnip | Heracleum sphondylium var. lanatum | Abundant | Native |
| coyote willow, desert willow, narrowleaf willow, sandbar willow | Salix exigua | Uncommon | Native |
| coyote willow, dusky willow, willow | Salix melanopsis | Uncommon | Native |
| crack willow | Salix fragilis | Unknown | Non-native |
| creamflower rockcress, hairy rockcress | Arabis hirsuta var. pycnocarpa | Unknown | Unknown |
| creeping barberry, creeping mahonia, Oregon grape, Trunkee barberry | Mahonia repens | Common | Native |
| creeping buttercup | Ranunculus repens | Unknown | Non-native |
| crested wheatgrass | Agropyron cristatum var. cristatum | Uncommon | Non-native |
| crisped starwort | Stellaria crispa | Rare | Native |
| Cross Mountain rockcress | Arabis williamsii var. saximontana | Uncommon | Native |
| cryptantha, desert stickweed, stickseed | Lappula redowskii | Uncommon | Native |
| cryptantha, slender cryptantha | Cryptantha affinis | Common | Native |
| cudweed sagewort, gray sagewort, Louisiana sagewort, Louisiana wormwood, mugwort wormwood, prairie sage, white sagebrush | Artemisia ludoviciana | Common | Native |
| cultivated red currant | Ribes sativum | Occasional | Non-native |
| curlleaf cercocarpus, curl-leaf mountain-mahogany | Cercocarpus ledifolius | Uncommon | Native |
| curl-leaf mountain-mahogany | Cercocarpus ledifolius var. intercedens | Uncommon | Native |
| curl-leaf mountain-mahogany | Cercocarpus ledifolius var. ledifolius | Uncommon | Native |
| curltop ladysthumb, curlytop knotweed, curlytop smartweed, dock-leaf smartweed, nodding smartweed, pale smartweed | Polygonum lapathifolium | Unknown | Native |
| curly bluegrass | Poa secunda var. incurva | Uncommon | Native |
| curly dock | Rumex crispus | Uncommon | Non-native |
| curly sedge, rock sedge | Carex rupestris | Rare | Native |
| curlycup gumweed, curly-cup gumweed, curlytop gumweed, gumweed, rosinweed, tarweed | Grindelia squarrosa var. squarrosa | Abundant | Native |
| curved yellowcress | Rorippa curvipes var. curvipes | Common | Native |
| curvepod yellowcress | Rorippa curvisiliqua var. curvisiliqua | Common | Native |
| cushion buckwheat | Eriogonum ovalifolium var. ochroleucum | Unknown | Unknown |
| cushion buckwheat | Eriogonum ovalifolium var. purpureum | Unknown | Native |
| cushion buckwheat, cushion wild buckwheat, ovalleaf eriogonum | Eriogonum ovalifolium | Common | Native |
| cushion draba, hoary whitlowgrass, lanceleaf draba, lanceolate draba | Draba breweri var. cana | Unknown | Native |
| cushion phlox, phlox, tufted phlox | Phlox pulvinata | Uncommon | Native |
| Cusick paintbrush | Castilleja cusickii | Uncommon | Native |
| Cusick’s aster | Symphyotrichum cusickii | Uncommon | Native |
| Cusick’s bluegrass | Poa cusickii | Common | Native |
| Cusick’s bluegrass | Poa cusickii ssp. epilis | Unknown | Native |
| Cusick’s bluegrass | Poa cusickii ssp. pallida | Unknown | Native |
| Cusick’s locoweed | Oxytropis campestris var. cusickii | Unknown | Native |
| cutleaf anemone, Pacific anemone, red windflower | Anemone multifida | Common | Native |
| cutleaf balsamroot, Idaho balsamroot | Balsamorhiza macrophylla | Uncommon | Native |
| cutleaf blackberry, cut-leaved blackberry | Rubus laciniatus | Occasional | Unknown |
| cutleaf waterparsnip, cut-leaf-water-parsnip, stalky berula | Berula erecta | Uncommon | Native |
| cypress spurge, graveyard spurge | Euphorbia cyparissias | Rare | Non-native |
| Dalmatian toadflax, Dalmation toadflax | Linaria dalmatica | Uncommon | Non-native |
| dandelion hawksbeard | Crepis runcinata | Uncommon | Native |
| darkthroat shootingstar | Dodecatheon pulchellum ssp. pulchellum | Unknown | Native |
| darkthroat shootingstar, dark-throat shootingstar, southern shootingstar | Dodecatheon pulchellum | Common | Native |
| darkwoods violet | Viola orbiculata | Uncommon | Native |
| darkwoods violet, wild white violet | Viola palustris | Uncommon | Native |
| deathcamas, grassy deathcamas | Zigadenus venenosus var. gramineus | Uncommon | Native |
| deceptive groundsmoke | Gayophytum decipiens | Unknown | Native |
| delicate gilia | Gilia tenerrima | Unknown | Unknown |
| delicate gilia | Lathrocasis tenerrima | Unknown | Native |
| densecress | Lepidium densiflorum var. pubecarpum | Rare | Native |
| denseflower knotweed, fruitleaf knotweed | Polygonum polygaloides ssp. confertiflorum | Unknown | Native |
| Deptford pink | Dianthus armeria ssp. armeria | Uncommon | Non-native |
| desert alyssum, desert madwort | Alyssum desertorum | Uncommon | Non-native |
| desert Indian paintbrush, Martin’s paintbrush, wavyleaf Indian paintbrush | Castilleja applegatei ssp. martinii | Uncommon | Native |
| desert paintbrush | Castilleja angustifolia var. dubia | Uncommon | Native |
| desert stickseed, flat-spine sheepburr, flatspine stickseed, western stickseed | Lappula occidentalis var. occidentalis | Uncommon | Native |
| diamondleaf saxifrage | Saxifraga rhomboidea | Uncommon | Native |
| diamondleaf willow, plainleaf willow, tea-leaf willow | Salix planifolia | Common | Native |
| diffuse collomia | Collomia tenella | Unknown | Native |
| diffuse groundsmoke | Gayophytum diffusum var. diffusum | Uncommon | Native |
| diffuse groundsmoke | Gayophytum diffusum var. strictipes | Abundant | Native |
| diffuse knapweed, white knapweed | Centaurea diffusa | Rare | Non-native |
| diffuseflower evening primrose, diffuseflower evening-primrose, longleaf suncup, northern eveningprimrose | Camissonia subacaulis | Uncommon | Native |
| disc mayweed, pineapple weed, pineappleweed | Matricaria discoidea | Unknown | Non-native |
| ditch reedgrass, Jones reedgrass | Calamagrostis scopulorum | Uncommon | Native |
| dogbane, spreading dogbane | Apocynum androsaemifolium | Common | Native |
| dogtooth violet | Erythronium grandiflorum var. grandiflorum | Uncommon | Native |
| Douglas’ dustymaiden, dusty-maiden | Chaenactis douglasii var. douglasii | Unknown | Native |
| Douglas knotweed | Polygonum douglasii var. douglasii | Abundant | Native |
| Douglas’ knotweed | Polygonum douglasii | Common | Native |
| Douglas rabbitbrush, Douglas’ rabbitbrush, green rabbitbrush, yellow rabbitbrush | Chrysothamnus viscidiflorus | Common | Native |
| Douglas Sedge | Carex douglasii | Uncommon | Native |
| droopflower clover | Trifolium longipes ssp. reflexum | Unknown | Native |
| drooping woodreed | Cinna latifolia | Unknown | Unknown |
| dropseed rockcress | Arabis holboellii var. pendulocarpa | Unknown | Native |
| Drummond rockcress, Holboell rockcress, Rockcress | Arabis drummondii | Uncommon | Native |
| Drummond rush, Parry rush | Juncus drummondii | Uncommon | Native |
| Drummond rush, Parry rush, rush | Juncus parryi | Common | Native |
| Drummond willow | Salix drummondiana | Common | Native |
| Drummond’s anemone | Anemone drummondii | Uncommon | Native |
| Drummond’s campion, Drummond’s catchfly | Silene drummondii var. drummondii | Occasional | Native |
| dryad, mountain avens | Dryas octopetala var. hookeriana | Uncommon | Native |
| duncecap larkspur | Delphinium occidentale | Common | Native |
| duncecap larkspur, larkspur, Nuttall larkspur | Delphinium bicolor | Uncommon | Native |
| Dunhead sedge | Carex petasata | Uncommon | Native |
| dunhead sedge, Liddon’s sedge | Carex phaeocephala | Uncommon | Native |
| dwarf alpine hawksbeard | Crepis nana ssp. ramosa | Unknown | Native |
| dwarf bilberry, dwarf blueberry | Vaccinium cespitosum | Common | Native |
| dwarf buttercup, plantainleaf buttercup | Ranunculus alismifolius | Uncommon | Native |
| dwarf cliffbrake, smooth cliffbrake, smooth cliff-brake | Pellaea glabella | Uncommon | Native |
| dwarf fireweed | Chamerion latifolium | Uncommon | Native |
| dwarf goldenrod, low goldenrod | Solidago nana | Rare | Native |
| dwarf hesperochiron | Hesperochiron pumilus | Uncommon | Native |
| Dwarf juniper, Juniper, mountain juniper | Juniperus communis var. depressa | Common | Native |
| dwarf mistletoe, mistletoe | Arceuthobium americanum | Uncommon | Native |
| dyer’s woad | Isatis tinctoria | Rare | Non-native |
| early coralroot, yellow coralroot | Corallorrhiza trifida | Rare | Native |
| early sedge, teacher’s sedge | Carex praeceptorum | Unknown | Native |
| eastern bracken, northern bracken fern, western brackenfern | Pteridium aquilinum var. latiusculum | Uncommon | Native |
| eastern showy aster, western showy aster | Eurybia conspicua | Common | Native |
| Eastwood willow, willow | Salix eastwoodiae | Common | Native |
| Eaton’s aster | Symphyotrichum eatonii | Unknown | Native |
| Eaton’s daisy, Eaton’s fleabane | Erigeron eatonii | Common | Native |
| Eaton’s daisy, Eaton’s fleabane | Erigeron eatonii var. eatonii | Common | Native |
| Eaton’s hollyfern, mountain hollyfern | Polystichum scopulinum | Rare | Native |
| edible valerian, tobacco root, tobaccoroot | Valeriana edulis | Uncommon | Native |
| Eelgrass Pondweed | Potamogeton zosteriformis | Rare | Native |
| elegant aster | Eucephalus elegans | Common | Native |
| elegant cinquefoil, red cinquefoil | Potentilla concinna | Uncommon | Native |
| elephanthead, elephant head | Pedicularis groenlandica | Common | Native |
| Elk Sedge | Carex geyeri | Abundant | Native |
| elkslip marshmarigold, slendersepal marshmarigold, white marsh marigold, white marshmarigold, white marsh-marigold | Caltha leptosepala | Common | Native |
| Engelmann spruce, engenmann spruce, Spruce | Picea engelmannii | Abundant | Native |
| Engelmann’s aster | Eucephalus engelmannii | Abundant | Native |
| English plantain | Plantago lanceolata | Uncommon | Non-native |
| English sundew | Drosera anglica | Rare | Native |
| erect cinquefoil, roughfruit cinquefoil, sulphur cinquefoil | Potentilla recta | Uncommon | Non-native |
| erectpod winter cress | Barbarea orthoceras | Uncommon | Native |
| Eschscholtz’s buttercup, largeflower buttercup, spruce-fir buttercup | Ranunculus eschscholtzii | Common | Native |
| European bittersweet | Solanum dulcamara | Uncommon | Non-native |
| European red elder, red elderberry, scarlet elderberry | Sambucus racemosa | Common | Native |
| European red elderberry | Sambucus racemosa var. microbotrys | Common | Native |
| evening primrose, long-tubed evening primrose | Oenothera flava | Uncommon | Native |
| everlasting, lowland cudweed | Gnaphalium palustre | Common | Native |
| everlasting, sticky cudweed | Gnaphalium viscosum | Uncommon | Native |
| fairy bells | Disporum trachycarpum | Common | Native |
| fairy slipper, fairyslipper, fairyslipper orchid, fairy-slipper orchid | Calypso bulbosa | Uncommon | Native |
| falkland island sedge, thickhead sedge | Carex macloviana | Unknown | Native |
| false asphodel | Tofieldia glutinosa var. montana | Rare | Native |
| false beechdrops, pinesap, yellow bird’s-nest, yellow pinesap | Hypopitys monotropa | Uncommon | Native |
| false dandelion, mountain dandelion, orange dandelion | Agoseris glauca var. dasycephala | Abundant | Native |
| false gromwell, smooth onosmodium, softhair marbleseed, soft-hair marbleseed | Onosmodium molle | Uncommon | Native |
| false huckleberry | Menziesia ferruginea | Common | Native |
| false London rocket, small tumbleweed mustard, tall hedgemustard, tallhedge mustard | Sisymbrium loeselii | Uncommon | Non-native |
| false mayweed | Matricaria maritima ssp. maritima | Uncommon | Non-native |
| false mermaid | Floerkea proserpinacoides | Common | Native |
| false mountain willow, white mountain willow | Salix pseudomonticola | Uncommon | Native |
| false solomon seal | Maianthemum racemosum var. amplexicaule | Common | Native |
| falsegold groundsel | Packera pseudaurea var. pseudaurea | Uncommon | Native |
| fat-hen saltbush, goosefoot, strawberry spinach | Chenopodium overi | Unknown | Unknown |
| Fendler pennycress, Pennycress | Thlaspi parviflorum | Uncommon | Native |
| Fendler’s meadowrue, Fendler’s meadow-rue | Thalictrum fendleri | Common | Native |
| fern, oak fern, wood-fern | Gymnocarpium dryopteris | Unknown | Unknown |
| fernleaved pedicularis | Pedicularis cystopteridifolia | Uncommon | Native |
| fescue, spike fescue, spike-fescue | Leucopoa kingii | Common | Native |
| fewflower meadowrue, fewflower meadow-rue | Thalictrum sparsiflorum var. saximontanum | Uncommon | Native |
| fewflower spikerush, few-flower spikerush, few-flower spike-rush, fewflowered spikesedge | Eleocharis quinqueflora | Common | Native |
| few-flowered camissonia | Camissonia breviflora | Uncommon | Native |
| fewseed draba, glacier draba | Draba oligosperma | Common | Native |
| fewseed whitlowgrass | Draba oligosperma var. oligosperma | Uncommon | Native |
| field bindweed | Convolvulus arvensis | Rare | Non-native |
| field brome | Bromus arvensis | Unknown | Non-native |
| field chickweed, mouse-eared chickweed | Cerastium arvense | Common | Non-native |
| field hawkweed, meadow hawkweed, yellow hawkweed, yellow kingdevil | Hieracium pratense | Occasional | Non-native |
| field locoweed, northern yellow locoweed, white smallflower pointloco | Oxytropis campestris | Uncommon | Native |
| field meadow-foxtail, meadow foxtail | Alopecurus pratensis | Uncommon | Non-native |
| field milkvetch | Astragalus agrestis | Uncommon | Native |
| field pennycress, Pennycress | Thlaspi arvense | Uncommon | Non-native |
| field sagewort, northern sagewort | Artemisia campestris ssp. borealis | Rare | Native |
| field sowthistle, field sow-thistle, marsh sowthistle, moist sowthistle, perennial sowthistle, sowthistle | Sonchus arvensis ssp. uliginosus | Unknown | Non-native |
| fieldcress, Peppergrass | Lepidium campestre | Common | Non-native |
| Filiform Pondweed | Potamogeton filiformis | Rare | Native |
| filiform rockjasmine, slender rockjasmine, slender-stemmed androsace | Androsace filiformis | Uncommon | Native |
| fir club moss, fir clubmoss | Huperzia selago | Occasional | Native |
| fire reedgrass | Calamagrostis koelerioides | Uncommon | Native |
| fireweed | Chamerion angustifolium ssp. circumvagum | Unknown | Native |
| fireweed, French-willow, great willowherb, rosebay willowherb | Chamerion angustifolium ssp. angustifolium | Abundant | Native |
| five-star mitrewort | Mitella pentandra | Uncommon | Native |
| five-veined helianthella, mountain sunflower | Helianthella quinquenervis | Unknown | Unknown |
| flattop broomrape, flat-top broomrape | Orobanche corymbosa ssp. corymbosa | Rare | Native |
| flat-top broomrape, Rydberg’s broomrape | Orobanche corymbosa | Rare | Native |
| flattop pussytoes | Antennaria corymbosa | Uncommon | Native |
| flaxgrass, oatgrass, wheat oats, wild oat, wild oats | Avena fatua | Uncommon | Non-native |
| flaxleaf plainsmustard, rush mustard | Schoenocrambe linifolia | Unknown | Native |
| flaxweed tansymustard, flixweed, flixweed tansymustard, herb sophia, herb-sophia, pinnate tansymustard, tansymustard | Descurainia sophia | Uncommon | Non-native |
| fleshy porterella, Porterella | Porterella carnosula | Rare | Native |
| flixweed tansy mustard, tansy mustard | Descurainia incana var. incana | Uncommon | Native |
| Floating Pondweed | Potamogeton natans | Uncommon | Native |
| floriferous monkeyflower, manyflowered monkeyflower, purplestem monkeyflower | Mimulus floribundus | Rare | Native |
| flume wirelettuce | Stephanomeria fluminea | Rare | Native |
| foothill deathcamas, sand-corn | Zigadenus paniculatus | Uncommon | Native |
| forget-me-not, true forget-me-not, yelloweye forget-me-not | Myosotis scorpioides | Uncommon | Non-native |
| fowl bluegrass | Poa palustris | Common | Non-native |
| fowl mannagrass | Glyceria striata | Uncommon | Native |
| fowl mannagrass, tall mannagrass | Torreyochloa pallida var. pauciflora | Uncommon | Native |
| foxtail barley | Hordeum jubatum | Common | Native |
| foxtail muhly, satin-grass | Muhlenbergia andina | Rare | Native |
| foxtail wheatgrass, pseudelymus | X Pseudelymus saxicola | Unknown | Native |
| fragile rockbrake, slender cliffbrake | Cryptogramma stelleri | Rare | Native |
| franklin phacelia | Phacelia franklinii | Rare | Native |
| fremont groundsel | Senecio fremontii var. fremontii | Rare | Native |
| Fries Pondweed | Potamogeton friesii | Uncommon | Native |
| fringed brome | Bromus ciliatus | Common | Native |
| fringed brome, nodding brome | Bromus anomalus | Uncommon | Native |
| fringed gentian, gentian, smaller fringed gentian | Gentianopsis detonsa var. elegans | Uncommon | Native |
| fringed grass of Parnassus, fringed grass-of-Parnassus, Rocky Mountain parnassia | Parnassia fimbriata | Common | Native |
| fringed sagebrush | Artemisia frigida | Uncommon | Native |
| fringed willowherb, glandular willowherb, glandular willowweed | Epilobium ciliatum ssp. glandulosum | Unknown | Native |
| fringed willowherb, hairy willowherb, hairy willowweed | Epilobium ciliatum | Common | Native |
| garden rhubarb | Rheum rhabarbarum | Occasional | Non-native |
| garden sorrel | Rumex acetosa | Uncommon | Native |
| geranium | Geranium viscosissimum var. nervosum | Uncommon | Native |
| geranium, Richardson geranium | Geranium richardsonii | Common | Native |
| geranium, Richardson geranium, sticky geranium | Geranium viscosissimum var. viscosissimum | Abundant | Native |
| German mugwort, German-madwort, madwort | Asperugo procumbens | Common | Non-native |
| Geyer onion | Allium geyeri var. tenerum | Uncommon | Native |
| Geyer willow | Salix geyeriana var. geyeriana | Abundant | Native |
| Geyer’s willow | Salix geyeriana | Common | Native |
| giant goldenrod | Solidago gigantea | Uncommon | Native |
| giant helleborine, stream orchid | Epipactis gigantea | Rare | Native |
| Giant Lomatium | Lomatium dissectum var. multifidum | Abundant | Native |
| giant lousewort, gray lousewort | Pedicularis procera | Uncommon | Native |
| giant red Indian paintbrush | Castilleja miniata ssp. miniata | Unknown | Native |
| giant red Indian paintbrush, great red Indian paintbrush, great red Indian-paintbrush, scarlet Indian paintbrush, scarlet paintbrush | Castilleja miniata | Abundant | Native |
| glaber fleabane | Erigeron leiomerus | Uncommon | Native |
| gland cinquefoil, sticky cinquefoil | Potentilla glandulosa | Abundant | Native |
| gland cinquefoil, tall cinquefoil | Potentilla arguta | Common | Native |
| glandular willowherb, Hall’s willowweed | Epilobium halleanum | Uncommon | Native |
| globed-podded hoarycress, heart-pod hoarycress, heart-podded hoarycress, hoary cress, peppergrass, pepperweed whitetop, whitetop, whiteweed | Cardaria draba | Rare | Non-native |
| Gmelin’s buttercup, lesser yellow water buttercup, small yellow water buttercup | Ranunculus gmelinii | Rare | Native |
| golden corydalis, scrambled eggs | Corydalis aurea | Uncommon | Native |
| golden currant | Ribes aureum | Common | Native |
| golden dock | Rumex maritimus var. fueginus | Uncommon | Native |
| golden draba, golden whitlowgrass | Draba aurea | Common | Native |
| golden sedge | Carex aurea | Uncommon | Native |
| goldenbush, rubber rabbitbrush | Ericameria nauseosa | Abundant | Native |
| goldenrod, Groundsel | Senecio serra var. serra | Uncommon | Native |
| goldenweed, shrubby goldenweed | Haplopappus suffruticosus | Uncommon | Native |
| gooseberry | Ribes cereum var. pedicellare | Common | Native |
| gooseberry | Ribes inerme var. inerme | Uncommon | Native |
| gooseberry currant | Ribes montigenum | Common | Native |
| goosefoot violet | Viola purpurea var. venosa | Uncommon | Native |
| goosefoot violet, goosefoot yellow violet | Viola purpurea ssp. venosa | Unknown | Native |
| Gordon ivesia | Ivesia gordonii | Common | Native |
| graceful buttercup | Ranunculus inamoenus | Uncommon | Native |
| graceful buttercup | Ranunculus inamoenus var. inamoenus | Uncommon | Native |
| graceful cinquefoil, northwest cinquefoil, slender cinquefoil | Potentilla gracilis | Abundant | Native |
| granite prickly phlox | Linanthus pungens | Unknown | Native |
| grape fern | Botrychium multifidum | Uncommon | Native |
| Grass pondweed, northern pondweed | Potamogeton gramineus | Uncommon | Native |
| grassleaf speedwell, grass-leaf speedwell, marsh speedwell, skullcap speedwell | Veronica scutellata | Uncommon | Native |
| gray aster | Aster glaucodes var. glaucodes | Uncommon | Native |
| gray aster | Eurybia glauca | Uncommon | Native |
| gray hawksbeard, limestone hawksbeard | Crepis intermedia | Uncommon | Native |
| gray horsebrush | Tetradymia canescens | Uncommon | Native |
| gray rabbitbrush | Chrysothamnus nauseosus | Common | Native |
| gray sagewort, white sagebrush | Artemisia ludoviciana ssp. candicans | Unknown | Native |
| graylocks four-nerve daisy | Tetraneuris grandiflora | Common | Native |
| Great Basin biscuitroot, Great Basin desertparsley, narrowleaf lomatium | Lomatium simplex | Unknown | Native |
| Great Basin nemophila | Nemophila breviflora | Uncommon | Native |
| great basin rye | Elymus cinereus | Uncommon | Native |
| great bulrush, softstem bulrush, soft-stem bulrush | Schoenoplectus tabernaemontani | Uncommon | Native |
| great duckweed | Spirodela polyrhiza | Rare | Native |
| Great Smoky Mountain sedge | Carex proposita | Unknown | Native |
| greater creeping spearwort | Ranunculus flammula var. filiformis | Uncommon | Native |
| greater creeping spearwort, spearwort buttercup | Ranunculus flammula | Common | Native |
| greater yellow water buttercup, yellow water buttercup, yellow water-crowfoot | Ranunculus flabellaris | Uncommon | Native |
| green gentian, green gentian; elkweed, swertia | Frasera speciosa | Common | Native |
| green sedge, little green sedge | Carex viridula | Uncommon | Native |
| green tansymustard, pinnate tansy mustard, pinnate tansymustard, tansymustard, western tansymustard | Descurainia pinnata | Common | Native |
| green-flowered shineleaf, green-flowered wintergreen, pale-green wintergreen | Pyrola chlorantha | Uncommon | Native |
| greenflowered wintergreen | Pyrola chlorantha var. chlorantha | Rare | Native |
| green-keeled cotton-grass | Eriophorum viridicarinatum | Rare | Native |
| greenleaf willow | Salix lasiandra var. caudata | Common | Native |
| greenleaf willow, shining willow | Salix lucida ssp. caudata | Uncommon | Native |
| greensheath sedge | Carex feta | Rare | Non-native |
| groudsel, groundsel, saw groundsel, thickleaf groundsel | Senecio crassulus | Uncommon | Native |
| groundsel | Senecio amplectens var. holmii | Rare | Native |
| groundsel | Senecio streptanthifolius var. rubricaulis | Common | Native |
| groundsel, water groundsel | Senecio hydrophiloides | Rare | Native |
| groundsel, water groundsel | Senecio hydrophilus | Uncommon | Native |
| grouse whortleberry | Vaccinium scoparium | Common | Native |
| hairleaf water buttercup, threadleaf crowfoot, thread-leaf water-crowfoot | Ranunculus trichophyllus var. trichophyllus | Unknown | Native |
| hairspine pricklypear | Opuntia polyacantha var. polyacantha | Uncommon | Native |
| hairy arnica, orange arnica | Arnica mollis | Uncommon | Native |
| hairy brome, hairy chess, meadow brome | Bromus commutatus | Uncommon | Non-native |
| hairy clematis | Clematis hirsutissima var. hirsutissima | Common | Native |
| hairy clematis, sugarbowls | Clematis hirsutissima | Uncommon | Native |
| hairy daisy, Navajo fleabane | Erigeron concinnus | Unknown | Native |
| hairy daisy, woolly fleabane | Erigeron lanatus | Uncommon | Native |
| hairy draba, whitlow-wort | Draba crassifolia | Rare | Native |
| hairy evening primrose, hairy eveningprimrose, hairy evening-primrose | Oenothera villosa ssp. strigosa | Unknown | Native |
| hairy false goldaster, hairy false goldenaster, hairy goldaster, hairy goldenaster | Heterotheca villosa | Common | Native |
| hairy false goldenaster | Heterotheca villosa var. minor | Uncommon | Native |
| hairy false goldenaster, hairy false golden-aster | Heterotheca villosa var. villosa | Unknown | Unknown |
| hairy paintbrush, white paintbrush | Castilleja pilosa var. longispica | Uncommon | Native |
| hairyfruit valerian, hairyfruit valeriana | Valeriana acutiloba var. pubicarpa | Common | Native |
| hairystem rockcress | Arabis sparsiflora var. subvillosa | Rare | Native |
| Hardstem Bulrush | Scirpus acutus | Uncommon | Native |
| Harebell, Scotch bluebell | Campanula rotundifolia | Common | Native |
| haresfoot crazyweed, haresfoot locoweed | Oxytropis lagopus | Common | Native |
| harp dandelion | Taraxacum scopulorum | Common | Native |
| hawkweed, white hawkweed | Hieracium albiflorum | Common | Native |
| heartleaf arnica, heartleaf arnnica | Arnica cordifolia | Abundant | Native |
| heart-leaved twayblade | Listera cordata | Uncommon | Native |
| Henderson’s desertparsley, Henderson’s springparsley, Henderson’s wavewing | Pteryxia hendersonii | Common | Native |
| Hesperostipa, needle and thread, needleandthread | Hesperostipa comata | Abundant | Native |
| hierba de chivo, old-man’s-beard, virgins bower, virginsbower, virgin’s-bower, western white clematis | Clematis ligusticifolia | Uncommon | Native |
| high mountain cinquefoil | Potentilla flabellifolia var. flabellifolia | Uncommon | Native |
| high mountain cinquefoil, Mount Rainier cinquefoil | Potentilla flabellifolia | Rare | Native |
| highbush huckleberry | Vaccinium globulare | Common | Native |
| hoary alyssum | Berteroa incana | Uncommon | Non-native |
| hoary aster, hoary goldenweed, hoary machaeranthera, hoary tansyaster, hoary tansy-aster, purple aster | Machaeranthera canescens | Common | Native |
| hoary groundsel | Packera werneriifolia | Unknown | Native |
| hoary tansyaster | Machaeranthera canescens var. canescens | Uncommon | Native |
| hoary verbena, hoary vervain, tall vervain, woolly verbena | Verbena stricta | Occasional | Non-native |
| Holboell rockcress, Holboell’s rockcress | Arabis holboellii | Common | Native |
| Holboell rockcress, Rockcress, Rockcress Nels.Rollins, Rockcress Rydb. | Arabis holboellii var. secunda | Abundant | Native |
| Holboell’s rockcress | Arabis holboellii var. pinetorum | Unknown | Native |
| holly fern | Polystichum lonchitis | Uncommon | Native |
| Holm’s Rocky Mt. sedge, payson sedge, sedge, woodrush sedge | Carex paysonis | Uncommon | Native |
| hooded ladies tresses | Spiranthes romanzoffiana | Uncommon | Native |
| hooked buttercup, woodland buttercup | Ranunculus uncinatus | Common | Native |
| Hooker’s cinquefoil | Potentilla hookeriana | Unknown | Native |
| Hooker’s mountain-avens | Dryas octopetala ssp. hookeriana | Unknown | Native |
| Hooker’s saxifrage, peak saxifrage | Saxifraga nidifica | Uncommon | Native |
| Hornemann’s willowherb | Epilobium hornemannii ssp. hornemannii | Unknown | Unknown |
| horsemint giant hyssop, nettleleaf giant hyssop | Agastache urticifolia | Common | Native |
| horsetail, scouring horsetail, scouringrush, scouringrush horsetail, tall scouring-rush, western scouringrush | Equisetum hyemale | Common | Native |
| houndstongue hawkweed, Scouler’s woollyweed, woolyweed | Hieracium scouleri | Uncommon | Native |
| House’s stitchwort | Minuartia macrantha | Unknown | Native |
| Huron green orchid | Platanthera huronensis | Unknown | Native |
| hybrid mountain heath | Phyllodoce X intermedia | Rare | Native |
| hymenoxys, Rydberg sunflower | Hymenoxys grandiflora | Uncommon | Native |
| Idaho bentgrass | Agrostis idahoensis | Unknown | Native |
| Idaho bladderpod | Lesquerella carinata var. carinata | Unknown | Native |
| Idaho blueeyed grass, Idaho blue-eyed grass | Sisyrinchium idahoense | Common | Native |
| Idaho fescue | Festuca idahoensis | Abundant | Native |
| Idaho threetip sagebrush | Artemisia tripartita var. tripartita | Uncommon | Native |
| indian dream fern | Aspidotis densa | Rare | Native |
| Indian milkvetch, Indian milk-vetch | Astragalus australis | Unknown | Native |
| Indian potato, Indian Potatoes | Orogenia linearifolia | Uncommon | Native |
| Indian ricegrass | Achnatherum hymenoides | Common | Native |
| inland bluegrass | Poa interior | Common | Native |
| inland rush | Juncus interior var. interior | Uncommon | Native |
| inland sedge | Carex interior | Common | Native |
| intermediate needle and thread, intermediate needleandthread, needleandthread | Hesperostipa comata ssp. intermedia | Unknown | Native |
| intermediate wheatgrass | Elymus hispidus var. hispidus | Uncommon | Non-native |
| ivy-leaf duckweed | Lemna trisulca | Rare | Native |
| Japanese brome, Japanese bromegrass, Japanese chess | Bromus japonicus | Uncommon | Non-native |
| jointed rush, Longstyle Rush | Juncus nodosus | Uncommon | Native |
| Jones’ columbine | Aquilegia jonesii | Uncommon | Native |
| juneberry, Pacific serviceberry, Saskatoon serviceberry, western serviceberry, western shadbush | Amelanchier alnifolia | Abundant | Native |
| junegrass, prairie junegrass | Koeleria macrantha | Abundant | Native |
| Juniper, rocky mountain juniper | Juniperus scopulorum | Uncommon | Native |
| keeled bladderpod | Lesquerella carinata | Uncommon | Native |
| Kellogg sedge, Kellogg’s sedge | Carex lenticularis var. lipocarpa | Unknown | Native |
| Kellogg spurred lupine, Kellogg’s spurred lupine | Lupinus caudatus ssp. argophyllus | Unknown | Native |
| Kellogg’s knotweed | Polygonum polygaloides ssp. kelloggii | Unknown | Native |
| kellogia | Kelloggia galioides | Rare | Native |
| Kentrophyta, milkvetch | Astragalus kentrophyta var. tegetarius | Uncommon | Native |
| Kentucky bluegrass | Poa pratensis | Abundant | Non-native |
| kinnikinnick | Arctostaphylos uva-ursi var. uva-ursi | Common | Native |
| Kobresia sedge | Carex elynoides | Uncommon | Native |
| Kotzebue’s grass of Parnassus, Kotzebue’s grass-of-Parnassus | Parnassia kotzebuei | Rare | Native |
| lady fern | Athyrium filix-femina | Uncommon | Native |
| lanceleaf Figwort | Scrophularia lanceolata | Uncommon | Native |
| lanceleaf springbeauty | Claytonia lanceolata | Abundant | Native |
| lancepod draba | Draba lonchocarpa | Uncommon | Native |
| lancepod draba | Draba lonchocarpa var. lonchocarpa | Uncommon | Native |
| languid-lady, oblongleaf bluebells | Mertensia oblongifolia | Common | Native |
| Lapland sedge | Carex lapponica | Unknown | Native |
| largeflower triteleia | Triteleia grandiflora | Common | Native |
| largeleaf avens | Geum macrophyllum var. perincisum | Abundant | Native |
| Leadville milkvetch | Astragalus molybdenus var. molybdenus | Unknown | Native |
| leafy goosefoot | Chenopodium foliosum | Unknown | Native |
| leafy Jacob’s-ladder, leafy polemonium, towering Jacob’s-ladder | Polemonium foliosissimum | Uncommon | Native |
| leafy lousewort | Pedicularis racemosa var. alba | Uncommon | Native |
| Leafy Pondweed | Potamogeton foliosus | Uncommon | Native |
| leafy spurge, spurge, wolf’s milk, wolf’s-milk | Euphorbia esula | Rare | Non-native |
| least lewisia | Lewisia pygmaea var. pygmaea | Uncommon | Native |
| leathery knotweed, striate knotweed | Polygonum achoreum | Occasional | Non-native |
| ledge stonecrop | Rhodiola integrifolia ssp. integrifolia | Unknown | Native |
| ledge stonecrop | Sedum integrifolium | Common | Native |
| Lemmon rockcress, Lemmon’s rockcress | Arabis lemmonii | Common | Native |
| Lemmon’s rockcress | Arabis lemmonii var. lemmonii | Unknown | Native |
| Lemmon’s willow | Salix lemmonii | Uncommon | Native |
| leopard lily | Fritillaria atropurpurea | Uncommon | Native |
| lesser bladderwort | Utricularia minor | Rare | Native |
| lesser duckweed | Lemna minor | Uncommon | Native |
| lesser duckweed, Valdivia duckweed | Lemna valdiviana | Rare | Native |
| lesser rushy milkvetch, timber milkvetch | Astragalus convallarius var. convallarius | Unknown | Native |
| lesser wintergreen | Pyrola minor | Rare | Native |
| lesser wirelettuce | Stephanomeria minor | Uncommon | Native |
| Lesser-panicled Sedge | Carex diandra | Rare | Native |
| Letterman bluegrass, Letterman’s bluegrass | Poa lettermanii | Uncommon | Native |
| Letterman needlegrass, Letterman’s needlegrass | Achnatherum lettermanii | Common | Native |
| lettuce, prickly lettuce | Lactuca serriola | Uncommon | Non-native |
| Lewis monkey flower, monkey flower | Mimulus lewisii | Uncommon | Native |
| limber pine | Pinus flexilis | Common | Native |
| Lindley’s aster | Symphyotrichum ciliolatum | Uncommon | Native |
| linearleaf phacelia, threadleaf phacelia | Phacelia linearis | Uncommon | Native |
| little green sedge | Carex viridula var. viridula | Unknown | Native |
| little ricegrass | Piptatherum exiguum | Uncommon | Native |
| little sagebrush | Artemisia arbuscula ssp. thermopola | Unknown | Native |
| little sagebrush, low sagebrush | Artemisia arbuscula | Abundant | Native |
| littleflower penstemon, pincushion beardtongue | Penstemon procerus | Common | Native |
| littleleaf pussytoes, pussytoes | Antennaria parvifolia | Uncommon | Native |
| littleleaf pussytoes, pussytoes, rose pussytoes | Antennaria microphylla | Abundant | Native |
| littleleaf rockcress, smallleaf rockcress | Arabis microphylla var. microphylla | Unknown | Native |
| littlepod false flax, little-pod false flax, littlepod falseflax, littleseed falseflax, small fruited falseflax, smallseed falseflax | Camelina microcarpa | Uncommon | Non-native |
| liverleaf wintergreen | Pyrola asarifolia var. asarifolia | Common | Native |
| lobeleaf groundsel | Packera multilobata | Unknown | Native |
| lodgepole pine, Rocky Mountain lodgepole pine, tall lodgepole pine | Pinus contorta var. latifolia | Abundant | Native |
| longleaf arnica | Arnica longifolia | Common | Native |
| longleaf chickweed, longleaf starwort, long-leaf starwort | Stellaria longifolia | Common | Native |
| longleaf phlox | Phlox longifolia | Common | Native |
| longleaf phlox | Phlox longifolia ssp. longifolia | Unknown | Native |
| longleaf phlox | Phlox longifolia var. longifolia | Common | Native |
| longleaf sagebrush, longleaf wormwood | Artemisia longifolia | Common | Native |
| longleaved starwort | Stellaria longipes var. longipes | Common | Native |
| longstalk clover, long-stalk clover | Trifolium longipes | Abundant | Native |
| long-style rush, long-styled rush | Juncus longistylis | Common | Native |
| longtube twinflower, Twinflower | Linnaea borealis var. longiflora | Common | Native |
| lovage | Ligusticum filicinum | Common | Native |
| low daisy, low fleabane, shaggy fleabane | Erigeron pumilus | Common | Native |
| low goldenrod | Solidago multiradiata var. scopulorum | Uncommon | Native |
| low larkspur, Nuttall’s larkspur, twolobe larkspur, two-lobe larkspur | Delphinium nuttallianum | Uncommon | Native |
| low pussytoes | Antennaria dimorpha | Uncommon | Native |
| low rabbitbrush | Chrysothamnus viscidiflorus var. lanceolatus | Uncommon | Native |
| lupine, meadow lupine, silky lupine | Lupinus polyphyllus var. prunophilus | Uncommon | Native |
| lupine, silky lupine, Wyeth lupine | Lupinus polyphyllus var. humicola | Common | Native |
| lupine, silver lupine | Lupinus argenteus var. rubricaulis | Rare | Native |
| Lyall’s rockcress | Arabis lyallii var. lyallii | Uncommon | Native |
| MacKenzie’s willow | Salix prolixa | Uncommon | Native |
| Macoun buttercup | Ranunculus macounii | Uncommon | Non-native |
| maiden pink | Dianthus deltoides | Rare | Non-native |
| maidenhair fern, northern maidenhair | Adiantum pedatum | Rare | Native |
| malcolmia | Malcolmia africana | Uncommon | Non-native |
| male fern, male woodfern, malefern | Dryopteris filix-mas | Uncommon | Native |
| mallow ninebark | Physocarpus malvaceus | Rare | Native |
| manybranched pepperweed | Lepidium ramosissimum var. ramosissimum | Uncommon | Native |
| mare’s tail, marestail | Hippuris vulgaris | Uncommon | Native |
| marsh buttercup | Ranunculus cymbalaria var. cymbalaria | Uncommon | Native |
| mat buckwheat, mat eriogonum, matted buckwheat, matted wild buckwheat | Eriogonum caespitosum | Uncommon | Native |
| mat muhly, pull-up muhly | Muhlenbergia filiformis | Common | Native |
| mat muhly, pull-up muhly | Muhlenbergia richardsonis | Uncommon | Native |
| mat rockspirea | Petrophytum caespitosum var. caespitosum | Unknown | Native |
| mat rockspirea, rockspirea, tufted rockmat | Petrophyton caespitosum | Uncommon | Native |
| mat vetch, purple vetch | Vicia americana ssp. minor | Unknown | Native |
| matroot penstemon | Penstemon radicosus | Uncommon | Native |
| mayweed, pineapple weed | Matricaria matricarioides | Uncommon | Native |
| meadow barley | Hordeum brachyantherum | Uncommon | Native |
| meadow buttercup, tall buttercup | Ranunculus acris | Common | Native |
| meadow fescue | Festuca pratensis | Uncommon | Non-native |
| meadow horsegrass, meadow horsetail | Equisetum arvense | Common | Native |
| meadow salsify; goatsbeard, purple salsify; goatsbeard, salsify; goatsbeard, yellow salsify, yellow salsify; goatsbeard | Tragopogon dubius | Uncommon | Non-native |
| meadow sedge | Carex cusickii | Rare | Native |
| meadow sedge, northern meadow sedge | Carex praticola | Common | Native |
| meadow thistle | Cirsium scariosum | Common | Native |
| meadowrue, western meadowrue | Thalictrum occidentale | Abundant | Native |
| Menzies silene | Silene menziesii var. menziesii | Uncommon | Native |
| Mertens rush, mertens sedge, Tracys rush | Juncus mertensianus | Common | Native |
| Mexican dock, trianglevalve dock, willow dock | Rumex salicifolius var. mexicanus | Uncommon | Native |
| Michaux’s sagebrush, Michaux’s sagewort, Michaux’s wormwood | Artemisia michauxiana | Uncommon | Native |
| milfoil yarrow, yarrow | Achillea millefolium var. lanulosa | Abundant | Native |
| milkvetch | Astragalus canadensis var. brevidens | Common | Native |
| milkwort knotweed, polygala knotweed, white-margin knotweed | Polygonum polygaloides | Uncommon | Native |
| Mill Creek agoseris | Agoseris lackschewitzii | Rare | Native |
| Millet Woodrush | Luzula parviflora | Uncommon | Native |
| miniature monkey-flower, Suksdorf’s monkeyflower | Mimulus suksdorfii | Rare | Native |
| Missouri goldenrod | Solidago missouriensis var. missouriensis | Common | Native |
| Missouri goldenrod, prairie goldenrod, Tolmie’s goldenrod | Solidago missouriensis | Abundant | Native |
| Modoc bog orchid, slender bog orchid | Platanthera stricta | Rare | Native |
| Modoc hawksbeard | Crepis modocensis ssp. modocensis | Unknown | Native |
| Montana wheatgrass | Elymus albicans | Unknown | Native |
| moss campion | Silene acaulis var. subacaulescens | Uncommon | Native |
| mountain bilberry, thinleaf huckleberry | Vaccinium membranaceum | Abundant | Native |
| mountain bluebells, shortstyle bluebells, tall fringe bluebells, tall fringed bluebells | Mertensia ciliata | Abundant | Native |
| mountain bog gentian, Rainier pleated gentian | Gentiana calycosa | Common | Native |
| mountain brickellbush, tasselflower brickellbush, tasselflower brickellia | Brickellia grandiflora | Uncommon | Native |
| mountain daisy | Erigeron corymbosus | Uncommon | Native |
| mountain dandelion | Agoseris glauca var. glauca | Common | Native |
| mountain dandelion | Agoseris glauca var. laciniata | Uncommon | Native |
| mountain dandelion, nodding microseris, orange dandelion | Agoseris aurantiaca | Common | Native |
| mountain dandelion, nodding microseris, salsify; goatsbeard | Microseris nutans | Common | Native |
| mountain death camas | Zigadenus elegans | Uncommon | Native |
| mountain fescue, Rocky Mountain fescue | Festuca saximontana | Common | Native |
| mountain goosefoot, strawberry spinach | Chenopodium atrovirens | Uncommon | Native |
| mountain grass of Parnassus, northern grass-of-Parnassus | Parnassia palustris var. montanensis | Rare | Native |
| mountain heath, pink mountain heath | Phyllodoce empetriformis | Uncommon | Native |
| mountain larkspur, Sierra larkspur, tower larkspur | Delphinium glaucum | Uncommon | Native |
| mountain lousewort | Pedicularis pulchella | Uncommon | Native |
| mountain lover | Paxistima myrsinites | Common | Native |
| mountain rockcress | Arabis hirsuta var. glabrata | Uncommon | Native |
| mountain rush | Juncus arcticus ssp. littoralis | Unknown | Native |
| mountain sedge, Rocky Mountain sedge | Carex scopulorum var. scopulorum | Unknown | Native |
| mountain snowberry, Twinberry, Utah honeysuckle, Utah honeysuckle, Utah honeysuckle, Twinberry | Lonicera utahensis | Common | Native |
| mountain sorrel, mountian sorrel | Oxyria digyna | Uncommon | Native |
| mountain sweetroot, sweet cicely, sweetcicely | Osmorhiza berteroi | Abundant | Native |
| mountain tansy mustard, mountain tansymustard, mountain tansy-mustard | Descurainia incana | Common | Native |
| mountain tansymustard | Descurainia incana ssp. procera | Unknown | Native |
| mountain thistle | Cirsium scopulorum | Occasional | Native |
| mountain townsendia | Townsendia alpigena var. alpigena | Uncommon | Native |
| mountainmeadow cinquefoil, mountain-meadow cinquefoil | Potentilla diversifolia var. perdissecta | Unknown | Native |
| mountain-meadow cinquefoil, varileaf cinquefoil | Potentilla diversifolia | Common | Native |
| muchbranched groundsmoke, pinyon groundsmoke | Gayophytum ramosissimum | Uncommon | Native |
| mulesears | Wyethia amplexicaulis | Common | Native |
| musk monkey flower | Mimulus moschatus var. moschatus | Uncommon | Native |
| musk monkeyflower, muskflower | Mimulus moschatus | Common | Native |
| musk thistle | Carduus nutans | Abundant | Non-native |
| narrowleaf blue eyed Mary | Collinsia linearis | Uncommon | Native |
| narrowleaf collomia | Collomia linearis | Common | Native |
| narrowleaf cottonwood | Populus angustifolia | Abundant | Native |
| narrowleaf goosefoot, narrowleaf lambsquarters, narrowleaved goosefoot, slimleaf goosefoot, slimleaf lambsquarters | Chenopodium leptophyllum | Uncommon | Native |
| narrow-leaf skeletonweed | Stephanomeria tenuifolia | Rare | Native |
| narrowleaved bur-reed | Sparganium angustifolium | Uncommon | Native |
| Narrowleaved Sedge | Carex stenophylla | Rare | Native |
| narrow-spiked reedgrass | Calamagrostis stricta | Uncommon | Native |
| Nebraska sedge | Carex nebrascensis | Uncommon | Native |
| needle and thread, needleandthread | Hesperostipa comata ssp. comata | Unknown | Native |
| Needle Spikerush, spikerush, spike-rush | Eleocharis acicularis | Common | Native |
| needleleaf sedge, spike-rush sedge | Carex duriuscula | Unknown | Native |
| nettleleaf giant hyssop | Agastache urticifolia var. urticifolia | Uncommon | Native |
| network willow | Salix reticulata var. nana | Uncommon | Native |
| Nevada rush, Sierra rush | Juncus nevadensis | Uncommon | Native |
| night-flowering catchfly | Silene latifolia ssp. alba | Uncommon | Non-native |
| nodding arnica, Parry’s arnica, Sonne’s arnica | Arnica parryi | Uncommon | Native |
| nodding beggarticks | Bidens cernua | Uncommon | Native |
| nodding bluegrass | Poa reflexa | Common | Native |
| nodding buckwheat, nodding eriogonum, nodding wild buckwheat | Eriogonum cernuum | Uncommon | Native |
| nodding locoweed | Oxytropis deflexa var. sericea | Common | Native |
| nodding onion | Allium cernuum | Uncommon | Native |
| none, nonePteryxia hendersonii,C&R | Cymopterus longilobus | Common | Native |
| northern bedstraw | Galium boreale | Unknown | Unknown |
| northern linanthus | Leptosiphon septentrionalis | Unknown | Native |
| northern linanthus | Linanthus septentrionalis | Common | Native |
| northern listera, northern twayblade | Listera borealis | Uncommon | Native |
| northern mannagrass | Glyceria borealis | Uncommon | Native |
| Northern Pondweed, Richardson Pondweed | Potamogeton alpinus | Uncommon | Native |
| northern reedgrass, slim-stem reed grass | Calamagrostis stricta ssp. inexpansa | Unknown | Native |
| northern sweetvetch, western sweetvetch | Hedysarum occidentale | Uncommon | Native |
| northern white violet, white violet | Viola renifolia | Unknown | Native |
| northwest cinquefoil, Nuttall’s cinquefoil, slender cinquefoil | Potentilla gracilis var. fastigiata | Unknown | Native |
| Northwest Territory sedge | Carex utriculata | Abundant | Native |
| northwestern Indian paintbrush, northwestern paintbrush | Castilleja angustifolia | Uncommon | Native |
| northwestern thelypody | Thelypodium paniculatum | Uncommon | Native |
| Norway sedge, Scandinavian sedge | Carex norvegica | Uncommon | Native |
| Norwegian cinquefoil | Potentilla norvegica | Uncommon | Non-native |
| Nuttall alkaligrass, Nuttall’s alkaligrass | Puccinellia nuttalliana | Uncommon | Native |
| Nuttall violet, violet | Viola praemorsa | Common | Native |
| Nuttall’s desert-trumpets, Nuttall’s linanthus | Linanthus nuttallii ssp. nuttallii | Common | Native |
| Nuttall’s linanthus | Leptosiphon nuttallii ssp. nuttallii | Unknown | Native |
| Nuttall’s monolepis, Nuttall’s povertyweed, Nuttall’s poverty-weed, patata, patota | Monolepis nuttalliana | Uncommon | Native |
| Nuttall’s rockcress | Arabis nuttallii | Uncommon | Native |
| Nuttall’s sandwort | Minuartia nuttallii | Uncommon | Native |
| Nuttalls sego lily | Calochortus nuttallii | Uncommon | Native |
| Nuttall’s sunflower | Helianthus nuttallii | Uncommon | Native |
| Nuttall’s violet, yellow prairie violet | Viola nuttallii | Common | Native |
| old man’s whiskers | Geum triflorum var. ciliatum | Common | Native |
| old man’s whiskers, prairie smoke, prairiesmoke | Geum triflorum | Abundant | Native |
| Olney Threesquare | Scirpus americanus | Common | Native |
| oneflower fleabane, onestem daisy, onestem fleabane, one-stem fleabane | Erigeron simplex | Common | Native |
| oneflower fringed gentian, oneflower gentian | Gentianopsis simplex | Unknown | Native |
| oneflower helianthella | Helianthella uniflora var. uniflora | Common | Native |
| one-flowered shinleaf, one-flowered wintergreen, single delight, woodnymph | Moneses uniflora | Uncommon | Native |
| one-sided wintergreen | Orthilia secunda | Common | Native |
| one-spike oatgrass | Danthonia unispicata | Common | Native |
| opposite-leaved saxifrage | Saxifraga oppositifolia | Rare | Native |
| orange hawkweed | Hieracium aurantiacum | Occasional | Non-native |
| orchard grass | Dactylis glomerata | Abundant | Non-native |
| orchid ipomopsis | Ipomopsis spicata ssp. orchidacea | Rare | Native |
| Oregon cliff fern, Oregon woodsia, western cliff fern | Woodsia oregana | Rare | Native |
| Oregon saxifrage, saxifrage | Saxifraga subapetala | Uncommon | Native |
| Oregon silene | Silene oregana | Uncommon | Native |
| oriental yellowcress | Rorippa curvisiliqua var. orientalis | Uncommon | Native |
| ovalhead sedge, smallwing sedge | Carex microptera | Abundant | Native |
| oxeye daisy | Chrysanthemum leucanthemum | Common | Non-native |
| Pacific anemone | Anemone multifida var. tetonensis | Unknown | Native |
| Pacific clubmoss | Huperzia haleakalae | Unknown | Native |
| Pacific oakfern | Gymnocarpium disjunctum | Rare | Native |
| Pacific waterclover | Marsilea oligospora | Rare | Native |
| paintbrush, Wyoming paintbrush | Castilleja linariifolia | Common | Native |
| Paiuteweed, Pursh seepweed, western seepweed | Suaeda calceoliformis | Uncommon | Native |
| pale agoseris, pale dandelion, prairie dandelion | Agoseris glauca | Abundant | Native |
| pale evening primrose, pale eveningprimrose, pale evening-primrose | Oenothera pallida | Uncommon | Native |
| pale Indian paintbrush | Castilleja pallescens var. pallescens | Uncommon | Native |
| Pammel’s oniongrass | Melica subulata var. pammelii | Unknown | Native |
| panciled willow-herb, panicled willow-herb | Epilobium brachycarpum | Common | Native |
| parrot’s-beak, sickletop lousewort | Pedicularis racemosa | Common | Native |
| Parry primrose | Primula parryi | Uncommon | Native |
| Parry sedge, Parry’s sedge | Carex parryana | Uncommon | Native |
| Parry’s aster | Symphyotrichum foliaceum var. parryi | Unknown | Native |
| Parry’s cinchweed, Parry’s lousewort | Pedicularis parryi | Uncommon | Native |
| Parry’s Townsend daisy, Parry’s townsendia | Townsendia parryi | Common | Native |
| parsnipflower buckwheat, Wyeth’s buckwheat, Wyeth’s eriogonum | Eriogonum heracleoides | Uncommon | Native |
| Patterson bluegrass | Poa pattersonii | Uncommon | Native |
| Payson’s milkvetch | Astragalus paysonii | Uncommon | Native |
| Payson’s tansy mustard, Payson’s tansymustard | Descurainia pinnata ssp. paysonii | Unknown | Native |
| pearly everlasting | Anaphalis margaritacea | Common | Native |
| pearly pussytoes, pussytoes, tall everlasting | Antennaria anaphaloides | Common | Native |
| Penn sedge, Pennsylvania sedge | Carex pensylvanica | Uncommon | Native |
| Pennsylvania bittercress, Quaker bittercress | Cardamine pensylvanica | Uncommon | Native |
| Pennsylvania cinquefoil, prairie cinquefoil | Potentilla pensylvanica | Unknown | Native |
| Peppergrass | Lepidium virginicum var. pubescens | Uncommon | Non-native |
| perennial pepperweed | Lepidium latifolium | Occasional | Non-native |
| pigweed, pigweed amaranth, prostrate pigweed, tumble pigweed, tumbleweed, white pigweed | Amaranthus albus | Occasional | Non-native |
| pine needlegrass, pine-forest needle grass, pinewoods needlegrass | Achnatherum pinetorum | Uncommon | Native |
| pinedrops | Pterospora andromedea | Uncommon | Native |
| pinnate tansy mustard, tansy mustard | Descurainia incana var. macrosperma | Uncommon | Native |
| pipes, river horsetail, water horsetail | Equisetum fluviatile | Common | Native |
| pipsissewa, prince’s pine | Chimaphila umbellata | Common | Native |
| plains bluegrass | Poa arida | Common | Native |
| plains reedgrass | Calamagrostis montanensis | Uncommon | Native |
| plains wallflower, prairie rocket, sand dune wallflower, western wallflower | Erysimum capitatum var. capitatum | Common | Native |
| plantain goldenweed, singlehead goldenweed | Pyrrocoma uniflora var. uniflora | Common | Native |
| plantainleaf buttercup | Ranunculus alismifolius var. alismifolius | Unknown | Native |
| pleated gentian | Gentiana affinis var. affinis | Unknown | Unknown |
| pleated gentian, Rocky Mountain gentian | Gentiana affinis | Uncommon | Native |
| poison ivy | Toxicodendron rydbergii | Rare | Native |
| pondweed, Richardson pondweed | Potamogeton richardsonii | Uncommon | Native |
| Popcorn flower, Scouler’s plagiobothrys | Plagiobothrys scouleri var. hispidulus | Common | Native |
| Porter brome | Bromus porteri | Uncommon | Native |
| porter lovage | Ligusticum canbyi | Rare | Native |
| Porter’s Indian paintbrush | Castilleja X porterae | Unknown | Native |
| poverty danthonia, poverty oatgrass, poverty wild oat grass | Danthonia spicata | Uncommon | Native |
| Powell’s amaranth, Powell’s pigweed | Amaranthus powellii | Rare | Non-native |
| prairie burnet | Sanguisorba annua | Occasional | Unknown |
| prairie coneflower, redspike Mexican hat, upright prairie coneflower | Ratibida columnifera | Uncommon | Non-native |
| prairie milkvetch | Astragalus laxmannii var. robustior | Unknown | Native |
| prairie onion, textile onion, wild onion | Allium textile | Uncommon | Native |
| prairie sage | Artemisia ludoviciana var. incompta | Uncommon | Native |
| prairie sage | Artemisia ludoviciana var. latiloba | Uncommon | Native |
| prairie smoke | Geum triflorum var. triflorum | Unknown | Unknown |
| prairie sunflower, showy sunflower | Helianthus petiolaris | Common | Native |
| Presl’s sedge | Carex preslii | Uncommon | Native |
| pretty Jacob’s-ladder | Polemonium pulcherrimum ssp. pulcherrimum | Unknown | Native |
| pretty Jacob’s-ladder, skunkleaf polemonium | Polemonium pulcherrimum | Uncommon | Native |
| prickly currant | Ribes lacustre | Common | Native |
| prickly rose | Rosa acicularis ssp. sayi | Unknown | Native |
| prickly sedge, star sedge | Carex echinata | Rare | Native |
| prostrate knotweed, yard knotweed | Polygonum aviculare | Occasional | Non-native |
| prostrate milkvetch | Astragalus miser var. decumbens | Uncommon | Native |
| prostrate sibbaldia, prostrate vervain | Sibbaldia procumbens | Uncommon | Native |
| prostrate vervain | Verbena bracteata | Uncommon | Native |
| Pumpelly’s brome | Bromus inermis var. pumpellianus | Unknown | Native |
| purple reedgrass | Calamagrostis purpurascens | Uncommon | Native |
| purplefringe, silky phacelia | Phacelia sericea | Common | Native |
| Pursh loco, Pursh’s milkvetch, Pursh’s milk-vetch, woollypod milkvetch | Astragalus purshii | Common | Native |
| pursh woollyleaf, Pursh woolyleaf | Eriophyllum lanatum var. integrifolium | Common | Native |
| Pursh’s buttercup | Ranunculus gmelinii var. purshii | Occasional | Native |
| Pursh’s milkvetch, Pursh’s milk-vetch, woollypod milkvetch | Astragalus purshii var. purshii | Uncommon | Native |
| purslane speedwell | Veronica peregrina var. xalapensis | Uncommon | Native |
| pussy paws | Cistanthe umbellata var. caudicifera | Uncommon | Native |
| pussytoes, rosey pussytoes | Antennaria rosea | Common | Native |
| pygmy buttercup | Ranunculus pygmaeus var. pygmaeus | Unknown | Native |
| pygmy pussytoes | Antennaria monocephala | Uncommon | Native |
| pygmyflower | Androsace septentrionalis var. subulifera | Uncommon | Native |
| Pyrenean sedge | Carex pyrenaica | Common | Native |
| quackgrass | Elymus repens | Common | Non-native |
| quaking aspen | Populus tremuloides | Abundant | Native |
| rabbitbrush, rubber rabbitbrush | Chrysothamnus nauseosus var. nauseosus | Common | Native |
| raceme pussytoes | Antennaria racemosa | Common | Native |
| racemed groundsmoke | Gayophytum racemosum | Uncommon | Native |
| rattlesnake fern | Botrychium virginianum var. virginianum | Rare | Native |
| rattlesnake plantain | Goodyera oblongifolia | Common | Native |
| Raynolds sedge, sedge | Carex raynoldsii | Common | Native |
| red clover | Trifolium pratense | Common | Non-native |
| red raspberry | Rubus idaeus var. aculeatissimus | Uncommon | Native |
| red raspberry | Rubus idaeus var. peramoenus | Rare | Native |
| redosier dogwood | Cornus sericea ssp. sericea | Common | Native |
| redpod stonecrop | Sedum rhodanthum | Rare | Native |
| redtop | Agrostis stolonifera | Common | Non-native |
| reed canary grass, reed canarygrass | Phalaris arundinacea | Common | Native |
| Regel rush, Regel’s rush | Juncus regelii | Common | Native |
| rhexia leaved paintbrush, rhexia-leaved paintbrush, scarlet paintbrush | Castilleja rhexiifolia | Uncommon | Native |
| ribbonleaf pondweed | Potamogeton epihydrus | Uncommon | Native |
| ribseed sandmat, rib-seed sandmat, ridgeseed spurge | Chamaesyce glyptosperma | Unknown | Native |
| Richardson needlegrass, Richardson’s needlegrass | Achnatherum richardsonii | Uncommon | Native |
| riverbank sedge | Carex stenoptila | Uncommon | Native |
| rock brake fern | Cryptogramma acrostichoides | Common | Native |
| rock cress, tower rockcress | Arabis glabra var. glabra | Uncommon | Native |
| rocky ledge penstemon | Penstemon ellipticus | Occasional | Native |
| rocky mountain ash | Sorbus scopulina var. scopulina | Common | Native |
| Rocky Mountain buttercup | Ranunculus cymbalaria var. saximontanus | Rare | Native |
| Rocky Mountain chickweed | Stellaria obtusa | Unknown | Native |
| Rocky Mountain cinquefoil | Potentilla rubricaulis | Unknown | Native |
| Rocky Mountain fescue | Festuca saximontana var. saximontana | Unknown | Native |
| Rocky Mountain iris, western blue flag, wild iris, wildiris | Iris missouriensis | Common | Native |
| Rocky Mountain maple | Acer glabrum var. glabrum | Abundant | Native |
| Rocky Mountain phlox | Phlox multiflora | Abundant | Native |
| Rocky Mountain rush | Juncus ensifolius var. montanus | Common | Native |
| Rocky Mountain willowherb, Rocky Mountain willowweed | Epilobium saximontanum | Unknown | Native |
| Rocky Mountain Woodsia fern | Woodsia scopulina | Uncommon | Native |
| Rocky mt. yellow waterlily | Nuphar polysepala | Common | Native |
| rooftop hawksbeard | Crepis tectorum | Uncommon | Non-native |
| rose angelica | Angelica roseana | Uncommon | Native |
| rose pussytoes, rush pussytoes | Antennaria luzuloides | Common | Native |
| rose, woods rose | Rosa woodsii | Common | Native |
| ross sedge, sedge | Carex rossii | Common | Native |
| rough bent, rough bentgrass, ticklegrass | Agrostis scabra | Abundant | Native |
| roughfruit fairybells | Prosartes trachycarpa | Unknown | Native |
| russet buffaloberry | Shepherdia canadensis | Common | Native |
| Russian knapweed | Acroptilon repens | Rare | Non-native |
| Russian Thistle, Russian thistle; tumbleweed | Salsola australis | Rare | Non-native |
| rydberg spikemoss | Selaginella densa | Common | Native |
| Rydberg’s fleabane | Erigeron rydbergii | Common | Native |
| sagebrush buttercup | Ranunculus glaberrimus var. ellipticus | Common | Native |
| sagebrush cinquefoil, slender cinquefoil | Potentilla gracilis var. brunnescens | Uncommon | Native |
| sand dropseed | Sporobolus cryptandrus | Occasional | Native |
| Sandberg bluegrass | Poa secunda var. secunda | Common | Native |
| Sartwell sedge, Sartwell’s sedge | Carex sartwellii | Rare | Native |
| sawsepal penstemon, western smooth beardtongue | Penstemon glaber var. glaber | Uncommon | Native |
| scabland penstemon | Penstemon deustus | Common | Native |
| scarlet gilia | Ipomopsis aggregata var. aggregata | Uncommon | Native |
| scarlet gilia, skyrocket gilia | Ipomopsis aggregata | Abundant | Native |
| scentbottle | Platanthera dilatata var. albiflora | Unknown | Native |
| scentbottle | Platanthera dilatata var. dilatata | Uncommon | Native |
| scented pussytoes | Antennaria aromatica | Uncommon | Native |
| Scouler willow, willow | Salix scouleriana | Common | Native |
| Scouler’s St. Johnswort | Hypericum scouleri | Unknown | Native |
| scouringrush horsetail, stout scouringrush, tall scouring-rush | Equisetum hyemale var. affine | Common | Native |
| Scribner wheatgrass, spreading wheatgrass | Elymus scribneri | Uncommon | Native |
| scrub pine, white pine, whitebark pine | Pinus albicaulis | Common | Native |
| sedge | Carex microptera var. microptera | Abundant | Native |
| seep muhly | Muhlenbergia reverchonii | Uncommon | Native |
| serrate sedge, woodrush sedge | Carex luzulina var. ablata | Rare | Native |
| serviceberry | Amelanchier alnifolia var. alnifolia | Abundant | Native |
| serviceberry | Amelanchier alnifolia var. pumila | Uncommon | Native |
| shaggy fleabane | Erigeron pumilus ssp. pumilus | Uncommon | Native |
| sharp buttercup | Ranunculus acriformis var. montanensis | Rare | Native |
| sharpleaf buttercup | Ranunculus acriformis | Uncommon | Native |
| sharpleaf twinpod | Physaria acutifolia | Common | Native |
| sheep cinquefoil | Potentilla ovina | Common | Native |
| sheep cinquefoil | Potentilla ovina var. decurrens | Uncommon | Native |
| sheep cinquefoil | Potentilla ovina var. ovina | Unknown | Native |
| sheep fescue | Festuca ovina | Uncommon | Native |
| sheep sedge, smallhead sedge | Carex illota | Common | Native |
| sheep sorrel | Rumex acetosella | Common | Non-native |
| sheperds purse, Shepherd’s purse | Capsella bursa-pastoris | Unknown | Unknown |
| shinyleaf spiraea, spiraea | Spiraea betulifolia var. lucida | Abundant | Native |
| short foxtail, shortawn foxtail, short-awn meadow-foxtail | Alopecurus aequalis | Common | Native |
| shortfruit willow | Salix brachycarpa var. brachycarpa | Unknown | Native |
| shortstyle onion | Allium brevistylum | Common | Native |
| showy cinqefoil, showy cinquefoil, varileaf cinquefoil | Potentilla gracilis var. nuttallii | Common | Native |
| showy cinquefoil | Potentilla gracilis var. flabelliformis | Uncommon | Native |
| showy goldeneye | Viguiera multiflora var. multiflora | Abundant | Native |
| showy milkweed | Asclepias speciosa | Occasional | Native |
| showy pussytoes | Antennaria pulcherrima | Uncommon | Native |
| showy sedge | Carex spectabilis | Uncommon | Native |
| showy Townsend daisy, showy townsendia | Townsendia florifera | Uncommon | Native |
| shrubby cinquefoil | Dasiphora fruticosa | Unknown | Native |
| shrubby cinquefoil | Pentaphylloides floribunda | Common | Native |
| shrubby willow-herb | Epilobium suffruticosum | Uncommon | Native |
| shy wallflower, smallflower wallflower | Erysimum inconspicuum | Rare | Native |
| Siberian pea-shrub, Siberian-pea shrub | Caragana arborescens | Rare | Non-native |
| Siberian wheatgrass | Agropyron fragile | Unknown | Non-native |
| sickletop lousewort | Pedicularis racemosa ssp. alba | Unknown | Native |
| side-flower miterwort, smallflower miterwort, Starry miterwort | Mitella stauropetala | Common | Native |
| Sierra tansymustard, Sierran tansy mustard, Sierran tansymustard | Descurainia californica | Uncommon | Native |
| Sierrra shootingstar | Dodecatheon jeffreyi | Uncommon | Native |
| silky lupine | Lupinus sericeus | Common | Native |
| silver cinquefoil, silver-leaf cinquefoil | Potentilla argentea | Occasional | Non-native |
| silver lupine | Lupinus argenteus var. argenteus | Abundant | Native |
| silver sagebrush | Artemisia cana | Common | Native |
| silver sedge, silvery sedge | Carex canescens | Uncommon | Native |
| silverberry | Elaeagnus commutata | Common | Native |
| silverleaf milkvetch, silver-leaf milkvetch | Astragalus argophyllus | Uncommon | Native |
| silverleaf phacelia, silver-leaf scorpion-weed | Phacelia hastata var. hastata | Common | Native |
| silverleaf phacelia, silver-leaf scorpion-weed, spearhead phacelia | Phacelia hastata | Abundant | Native |
| silverleaved milkvetch | Astragalus argophyllus var. argophyllus | Uncommon | Native |
| silver-stem lupine, silvery lupine | Lupinus argenteus ssp. argenteus | Unknown | Native |
| silverweed cinquefoil | Potentilla anserina | Uncommon | Native |
| silvery lupine | Lupinus argenteus | Abundant | Native |
| silvery lupine | Lupinus argenteus var. laxiflorus | Unknown | Native |
| skullcap | Scutellaria galericulata | Uncommon | Native |
| sky pilot | Polemonium viscosum | Uncommon | Native |
| slender bluegrass | Poa gracillima var. gracillima | Uncommon | Native |
| slender cottongrass, slender cotton-grass, slender cottonsedge | Eriophorum gracile | Rare | Native |
| slender draba, whitlow-wort | Draba albertina | Uncommon | Native |
| slender draba, whitlow-wort | Draba nemorosa | Uncommon | Native |
| slender hairgrass | Deschampsia elongata | Rare | Native |
| slender hawksbeard | Crepis atribarba | Uncommon | Native |
| slender hawkweed | Hieracium gracile | Uncommon | Native |
| slender hawkweed | Hieracium gracile var. gracile | Unknown | Unknown |
| slender hawkweed | Hieracium scouleri var. scouleri | Unknown | Unknown |
| slender phlox | Microsteris gracilis var. humilior | Common | Native |
| slender phlox | Phlox gracilis | Uncommon | Native |
| slender wheatgrass, slender wild rye | Elymus trachycaulus | Common | Native |
| slender woodland-star | Lithophragma tenellum | Uncommon | Native |
| slim-stem reed grass, slimstem reedgrass | Calamagrostis stricta ssp. stricta | Unknown | Native |
| small bedstraw, threepetal bedstraw, three-petal bedstraw | Galium trifidum | Common | Native |
| small bog orchid | Platanthera obtusata | Rare | Native |
| small enchanter nightshade, small enchanter’s nightshade | Circaea alpina ssp. pacifica | Unknown | Native |
| small enchanter nightshade, small enchanter’s nightshade, small enchanter’s-nightshade | Circaea alpina ssp. alpina | Uncommon | Native |
| small gymnosteris | Gymnosteris parvula | Rare | Native |
| small pondweed | Potamogeton pusillus ssp. pusillus | Uncommon | Native |
| smallflower fescue, small-flower fescue | Festuca minutiflora | Unknown | Native |
| smallflower grass of Parnassus | Parnassia parviflora | Uncommon | Native |
| smallflower miterwort | Mitella stauropetala var. stauropetala | Unknown | Native |
| smallflower woodlandstar | Lithophragma parviflorum | Common | Native |
| small-flowered anemone | Anemone parviflora | Uncommon | Native |
| smallflowered dragonhead | Dracocephalum parviflorum | Uncommon | Native |
| small-leaf cinquefoil | Potentilla brevifolia | Rare | Native |
| smooth brome | Bromus inermis ssp. inermis | Unknown | Non-native |
| smooth brome | Bromus inermis var. inermis | Common | Non-native |
| smooth fleabane | Erigeron glabellus var. glabellus | Common | Native |
| smooth fleabane, streamside fleabane | Erigeron glabellus | Uncommon | Native |
| smooth scouringrush | Equisetum laevigatum | Common | Native |
| smooth white violet | Viola macloskeyi ssp. pallens | Unknown | Native |
| smooth woodrush | Luzula glabrata | Unknown | Native |
| smooth woodrush, Wahlenberg Woodrush | Luzula glabrata var. hitchcockii | Rare | Native |
| smooth woodyaster | Xylorhiza glabriuscula var. glabriuscula | Uncommon | Native |
| smoothstem sedge | Carex laeviculmis | Rare | Native |
| Snake River twinpod | Physaria integrifolia var. integrifolia | Rare | Native |
| sneezeweed | Achillea ptarmica | Unknown | Non-native |
| snow cinquefoil, snowy cinquefoil | Potentilla nivea | Uncommon | Native |
| snow willow | Salix nivalis | Uncommon | Native |
| snowberry, wolfberry | Symphoricarpos oreophilus var. utahensis | Common | Native |
| snowbrush ceanothus | Ceanothus velutinus var. velutinus | Unknown | Unknown |
| snowline springparsley | Cymopterus nivalis | Uncommon | Native |
| southernwood | Artemisia abrotanum | Occasional | Non-native |
| spearleaf fleabane | Erigeron lonchophyllus | Uncommon | Native |
| spearleaf stonecrop | Sedum lanceolatum var. lanceolatum | Common | Native |
| spike redtop | Agrostis exarata | Common | Native |
| spike sedge | Carex nardina | Rare | Native |
| spike trisetum | Trisetum spicatum | Common | Native |
| spike woodrush | Luzula spicata | Uncommon | Native |
| spiked gilia, spiked ipomopsis | Ipomopsis spicata | Uncommon | Native |
| spleenwort | Asplenium trichomanes-ramosum | Uncommon | Native |
| splitleaf groundsel | Packera dimorphophylla | Abundant | Native |
| spotted coralroot | Corallorrhiza maculata | Common | Native |
| spotted knapweed | Centaurea stoebe ssp. micranthos | Unknown | Non-native |
| spotted knapweed, star-thistle | Centaurea maculosa | Common | Non-native |
| spotted saxifrage, yellowdot saxifrage | Saxifraga bronchialis | Uncommon | Native |
| spreading daisy, spreading fleabane | Erigeron divergens | Uncommon | Native |
| spreading fleabane | Erigeron divergens var. divergens | Unknown | Unknown |
| spreading groundsmoke | Gayophytum diffusum ssp. diffusum | Unknown | Native |
| spreading pod rockcress | Arabis confinis var. confinis | Uncommon | Native |
| spreading woodfern | Dryopteris expansa | Rare | Native |
| spring draba, spring whitlowgrass | Draba verna | Uncommon | Native |
| starry false solomon seal | Maianthemum stellatum | Common | Native |
| starwort | Stellaria calycantha | Uncommon | Native |
| steershead | Dicentra uniflora | Uncommon | Native |
| stemless goldenweed, stemless mock goldenweed | Stenotus acaulis | Uncommon | Native |
| Steven’s sedge | Carex norvegica ssp. stevenii | Unknown | Native |
| sticky currant | Ribes viscosissimum | Abundant | Native |
| sticky currant | Ribes viscosissimum var. viscosissimum | Common | Native |
| sticky geranium, sticky purple geranium | Geranium viscosissimum | Abundant | Native |
| sticky purple geranium | Geranium viscosissimum var. incisum | Unknown | Native |
| sticky starwort, sticky-starwort, tuber starwort | Pseudostellaria jamesiana | Uncommon | Native |
| sticky tofieldia | Triantha occidentalis ssp. montana | Unknown | Native |
| stiff clubmoss | Lycopodium annotinum var. annotinum | Uncommon | Native |
| stinging nettle | Urtica dioica var. procera | Common | Native |
| stoneseed, western stoneseed | Lithospermum ruderale | Uncommon | Native |
| storksbill; filaree | Erodium cicutarium | Uncommon | Non-native |
| strawberry, woodland strawberry | Fragaria vesca | Common | Native |
| strawberry, woodland strawberry | Fragaria virginiana | Abundant | Native |
| streambank wheatgrass, streamside wild rye | Elymus lanceolatus | Common | Native |
| striped coralroot | Corallorrhiza striata | Unknown | Unknown |
| subalpine arnica | Arnica rydbergii | Uncommon | Native |
| subalpine aster | Eurybia merita | Uncommon | Native |
| subalpine daisy, subalpine fleabane | Erigeron peregrinus ssp. callianthemus | Unknown | Unknown |
| subalpine fir | Abies lasiocarpa var. lasiocarpa | Common | Native |
| subalpine fleabane | Erigeron peregrinus var. callianthemus | Common | Native |
| subalpine fleabane, wandering daisy, wandering fleabane | Erigeron peregrinus | Abundant | Native |
| subalpine monkeyflower, subalpine monkey-flower, Tiling’s monkeyflower | Mimulus tilingii | Uncommon | Native |
| subalpine spiraea | Spiraea splendens | Uncommon | Native |
| Suksdorf monkey flower | Mimulus patulus | Rare | Native |
| sulfur buckwheat, sulfur eriogonum, sulphur flower buckwheat, sulphur wildbuckwheat, sulphur-flower buckwheat | Eriogonum umbellatum | Abundant | Native |
| sulphur buckwheat | Eriogonum umbellatum var. umbellatum | Uncommon | Native |
| sulphur buckwheat, wild buckwheat | Eriogonum umbellatum var. majus | Abundant | Native |
| sulphur paintbrush | Castilleja sulphurea | Uncommon | Native |
| summer coralroot | Corallorrhiza maculata var. occidentalis | Uncommon | Native |
| sunflower mule-ears, whitehead wyethia | Wyethia helianthoides | Common | Native |
| sweetgrass, vanilla grass | Hierochloe odorata | Unknown | Unknown |
| sweetscented bedstraw | Galium triflorum | Common | Native |
| swollen penstemon | Penstemon rydbergii var. rydbergii | Uncommon | Native |
| Swordleaf Rush | Juncus ensifolius var. ensifolius | Uncommon | Native |
| swordleaf rush, three-stamened rush | Juncus ensifolius | Common | Native |
| tall blue lettuce, wild blue lettuce | Lactuca biennis | Uncommon | Native |
| tall draba | Draba praealta | Unknown | Native |
| tall mannagrass | Glyceria elata | Unknown | Unknown |
| tall oatgrass | Arrhenatherum elatius var. elatius | Uncommon | Non-native |
| tapertip hawksbeard | Crepis acuminata | Uncommon | Native |
| tapertip onion, taper-tip onion | Allium acuminatum | Uncommon | Native |
| tarragon | Artemisia dracunculus | Uncommon | Native |
| thickleaf draba | Draba crassa | Rare | Native |
| thickspike wheatgrass | Elymus lanceolatus var. lanceolatus | Unknown | Unknown |
| thickstem aster | Eurybia integrifolia | Common | Native |
| thimbleberry, western thimbleberry | Rubus parviflorus | Abundant | Native |
| Thread Rush | Juncus balticus var. montanus | Common | Native |
| thread rush | Juncus filiformis | Rare | Native |
| threadbranch sandwort, threadbranch stitchwort, thread-branch stitchwort | Minuartia filiorum | Uncommon | Native |
| threadleaf sedge | Carex filifolia | Common | Native |
| threeleaf lewisia | Lewisia triphylla | Uncommon | Native |
| threepetal bedstraw | Galium trifidum ssp. trifidum | Unknown | Native |
| threepetal bedstraw, three-petal bedstraw | Galium trifidum ssp. subbiflorum | Unknown | Native |
| threesection buttercup | Ranunculus eschscholtzii var. trisectus | Uncommon | Native |
| thyme-leaf speedwell | Veronica serpyllifolia var. humifusa | Common | Native |
| timber milkvetch | Astragalus miser var. tenuifolius | Uncommon | Native |
| timber milkvetch, weedy milkvetch | Astragalus miser | Abundant | Native |
| timber oatgrass | Danthonia intermedia | Uncommon | Native |
| timberline bluegrass | Poa glauca ssp. rupicola | Common | Native |
| timberline willow | Salix rotundifolia var. dodgeana | Uncommon | Native |
| tiny mousetail | Myosurus minimus var. minimus | Uncommon | Native |
| toad rush | Juncus bufonius | Uncommon | Native |
| toadlily, water Indianlettuce, water miner’s lettuce, water minerslettuce | Montia chamissoi | Uncommon | Native |
| tobacco root | Valeriana edulis var. edulis | Uncommon | Native |
| Tolmie’s owl’s-clover | Orthocarpus tolmiei | Uncommon | Native |
| Torrey’s catseye | Cryptantha torreyana var. torreyana | Common | Native |
| Tracy rush, Tracy’s rush | Juncus tracyi | Uncommon | Native |
| trailing daisy, trailing fleabane | Erigeron flagellaris | Uncommon | Native |
| treacle wallflower, wallflower mustard, wormseed mustard, wormseed wallflower, worm-seed wallflower | Erysimum cheiranthoides | Common | Native |
| tufted alpine saxifrage | Saxifraga caespitosa ssp. monticola | Unknown | Native |
| tufted evening primrose | Oenothera cespitosa var. cespitosa | Common | Native |
| tufted evening primrose, tufted eveningprimrose | Oenothera cespitosa ssp. cespitosa | Unknown | Native |
| tufted fleabane | Erigeron caespitosus | Uncommon | Native |
| tufted hairgrass | Deschampsia cespitosa | Common | Native |
| tumbling mustard | Sisymbrium altissimum | Uncommon | Non-native |
| turion duckweed | Lemna turionifera | Unknown | Native |
| Tweedy rush, Tweedy’s rush | Juncus tweedyi | Rare | Native |
| Tweedy thistle | Cirsium eatonii | Unknown | Unknown |
| tweedy willow | Salix tweedyi | Rare | Native |
| twinberry honeysuckle | Lonicera involucrata var. involucrata | Common | Native |
| twinleaf bedstraw | Galium bifolium | Uncommon | Native |
| two-groove milk-vetch, twogrooved milkvetch | Astragalus bisulcatus var. bisulcatus | Uncommon | Native |
| umber pussytoes | Antennaria umbellata | Uncommon | Native |
| undergreen willow | Salix commutata | Uncommon | Native |
| Utah buttercup | Ranunculus jovis | Uncommon | Native |
| Utah serviceberry, Utah shadberry, western serviceberry | Amelanchier utahensis | Unknown | Native |
| valley sedge | Carex vallicola | Uncommon | Native |
| variegated horsetail, variegated scouringrush, variegated scouring-rush | Equisetum variegatum | Uncommon | Native |
| variegated scouringrush, variegated scouring-rush | Equisetum variegatum var. variegatum | Common | Native |
| veiny meadowrue, veiny meadow-rue, veiny-leaf meadow-rue | Thalictrum venulosum | Unknown | Native |
| violet | Viola vallicola | Uncommon | Native |
| virgins bower | Clematis occidentalis var. grosseserrata | Uncommon | Native |
| Wahlenberg woodrush, Whalenberg woodrush, woodrush | Luzula piperi | Rare | Native |
| Wasatch bluegrass | Poa arnowiae | Uncommon | Native |
| Wasatch penstemon | Penstemon cyananthus | Uncommon | Native |
| Wasatch penstemon | Penstemon subglaber | Uncommon | Native |
| Washington monkeyflower | Mimulus washingtonensis | Unknown | Native |
| water crowfoot | Ranunculus aquatilis | Common | Native |
| water knotweed, water smartweed | Polygonum amphibium | Common | Native |
| water parsnip, Waterparsnip | Sium suave | Common | Native |
| water sedge | Carex aquatilis | Abundant | Native |
| water smartweed | Polygonum amphibium var. stipulaceum | Uncommon | Native |
| water starwort | Callitriche palustris | Uncommon | Native |
| watercress | Nasturtium officinale | Uncommon | Non-native |
| watercress | Rorippa nasturtium-aquaticum | Uncommon | Native |
| waterleaf phacelia | Phacelia hydrophylloides | Uncommon | Native |
| waterplantain buttercup | Ranunculus alismifolius var. montanus | Unknown | Native |
| Watson’s cryptantha | Cryptantha watsonii | Uncommon | Native |
| wax currant | Ribes cereum | Common | Native |
| weakstemmed stonecrop | Sedum debile | Uncommon | Native |
| weedy milkvetch | Astragalus miser var. hylophilus | Common | Native |
| western aster | Aster occidentalis | Common | Native |
| western aster | Aster occidentalis var. occidentalis | Common | Native |
| western aster | Symphyotrichum ascendens | Abundant | Native |
| western baneberry | Actaea rubra | Common | Native |
| western bog blueberry | Vaccinium occidentale | Uncommon | Native |
| western coneflower | Rudbeckia occidentalis | Common | Native |
| western coneflower | Rudbeckia occidentalis var. occidentalis | Abundant | Native |
| western coralroot | Corallorrhiza mertensiana | Uncommon | Native |
| western dock | Rumex aquaticus var. fenestratus | Unknown | Native |
| western fringe gentian, windmill fringed gentian | Gentianopsis detonsa | Unknown | Native |
| western Indian paintbrush | Castilleja occidentalis | Uncommon | Native |
| western Jacob’s-ladder, western polemonium | Polemonium occidentale | Uncommon | Native |
| western Jacob’s-ladder, western polemonium | Polemonium occidentale ssp. occidentale | Unknown | Native |
| western meadow aster | Symphyotrichum campestre | Common | Native |
| western mountain aster | Symphyotrichum spathulatum var. spathulatum | Common | Native |
| western needle grass, western needlegrass | Achnatherum occidentale ssp. occidentale | Uncommon | Native |
| western needlegrass | Achnatherum occidentale | Unknown | Native |
| western saxifrage | Saxifraga occidentalis | Uncommon | Native |
| western snowberry, wolfberry | Symphoricarpos occidentalis | Common | Native |
| western sweetvetch | Hedysarum boreale var. boreale | Uncommon | Native |
| western wallflower | Erysimum asperum | Abundant | Native |
| wheat grass | Elymus lanceolatus var. riparius | Common | Native |
| wheatgrass | Elymus albicans var. griffithii | Uncommon | Native |
| Wheeler’s bluegrass | Poa wheeleri | Abundant | Native |
| whiplash willow, willow | Salix boothii | Common | Native |
| Whipple penstemon | Penstemon whippleanus | Uncommon | Native |
| white marsh marigold, white marshmarigold, white marsh-marigold | Caltha leptosepala ssp. leptosepala | Unknown | Native |
| white marshmarigold | Caltha leptosepala var. leptosepala | Uncommon | Native |
| white panicle aster | Symphyotrichum lanceolatum ssp. hesperium | Common | Native |
| white panicle aster | Symphyotrichum lanceolatum ssp. lanceolatum | Uncommon | Native |
| white sweetclover | Melilotus albus | Abundant | Non-native |
| white-coiled lousewort | Pedicularis contorta var. contorta | Common | Native |
| whitestem gooseberries, whitestem gooseberry | Ribes inerme | Common | Native |
| whiteveined wintergreen | Pyrola picta var. picta | Uncommon | Native |
| white-veined wintergreen | Pyrola picta | Rare | Native |
| whorled water-milfoil, whorlleaf watermilfoil, whorl-leaf watermilfoil | Myriophyllum verticillatum | Unknown | Native |
| wild black currant | Ribes hudsonianum var. petiolare | Common | Native |
| wild buckwheat | Eriogonum umbellatum var. dichrocephalum | Unknown | Unknown |
| wild candytuft | Thlaspi montanum var. montanum | Uncommon | Native |
| wild fuchia | Epilobium canum ssp. garrettii | Uncommon | Native |
| wild hollyhock | Iliamna rivularis | Common | Native |
| willow | Salix cascadensis | Rare | Native |
| willow | Salix planifolia var. monica | Rare | Native |
| willow, yellow willow | Salix lutea | Common | Native |
| willow-herb | Epilobium anagallidifolium | Uncommon | Native |
| willowleaf dock | Rumex salicifolius var. triangulivalvis | Uncommon | Native |
| wind draba, Wind River draba | Draba ventosa | Uncommon | Native |
| windmill fringed gentian | Gentianopsis detonsa ssp. detonsa | Uncommon | Native |
| winterfat | Krascheninnikovia lanata | Rare | Native |
| Wister coralroot | Corallorrhiza wisteriana | Rare | Native |
| wolf willow | Salix wolfii var. wolfii | Common | Native |
| wolf willow, Wolf’s willow | Salix wolfii | Abundant | Native |
| woodland buttercup | Ranunculus uncinatus var. uncinatus | Common | Native |
| woods valerian, woods valeriana | Valeriana dioica var. sylvatica | Unknown | Native |
| woolly groundsel | Packera cana | Abundant | Native |
| woolly pussytoes | Antennaria lanata | Uncommon | Native |
| woolly sedge | Carex lanuginosa | Common | Native |
| woolly sedge | Carex pellita | Common | Native |
| woollyfruit sedge, woolly-fruit sedge | Carex lasiocarpa | Uncommon | Native |
| wormleaf stonecrop | Sedum stenopetalum var. stenopetalum | Common | Native |
| wormleaf stonecrop, yellow stonecrop | Sedum stenopetalum | Common | Native |
| yellow avalanche-lily | Erythronium grandiflorum ssp. grandiflorum | Unknown | Native |
| yellow avens | Geum aleppicum | Unknown | Native |
| yellow bell | Fritillaria pudica | Common | Native |
| yellow chamomile | Anthemis tinctoria | Unknown | Non-native |
| yellow columbine | Aquilegia flavescens | Uncommon | Native |
| yellow columbine | Aquilegia flavescens var. flavescens | Uncommon | Native |
| yellow Indian paintbrush | Castilleja flava var. flava | Uncommon | Native |
| yellow Indian paintbrush, yellow paintbrush | Castilleja flava | Common | Native |
| yellow mountain heath | Phyllodoce glanduliflora | Rare | Native |
| yellow owl-clover | Orthocarpus luteus | Common | Native |
| yellow spikerush | Eleocharis flavescens var. thermalis | Rare | Native |
| yellow sweetclover | Melilotus officinalis | Abundant | Non-native |
| yellowdot saxifrage | Saxifraga bronchialis var. austromontana | Uncommon | Native |
| Yellowstone draba | Draba incerta | Unknown | Non-native |
| Yellowstone milkvetch | Astragalus miser var. praeteritus | Rare | Native |
| Amphibians | Birds | Fish | Mammals | Reptiles | Plants |
Note: The wildlife species included in the lists above have been confirmed with the National Park Service to be present in Grand Teton National Park. Other species may exist in the park that are currently under review or not yet known.
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References:
- National Park Species List
- Featured Photo Credit: Elk Grazing in Grand Teton National Park, Wyoming by NPS
