List by Scientific Name - List by Common Name

Partial List of Plants of the Northern Rockies and Plains of Montana
Sorted by Scientific Name

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• Piperia unalascensis -Alaska rein-orchid*
• Penstemon albertinus -Alberta penstemon*
• Medicago sativa -Alfalfa*
• Spartina gracilis -Alkali cordgrass*
• Sporobolus airoides -Alkali sacaton*
• Cerastium berringianum -Alpine chickweed, Alpine cerastium*
• Collomia debilis -Alpine collomia*
• Larix lyallii -Alpine larch, subalpine larch*
• Lloydia serotina -Alpine lily*
• Mitella pentandra -Alpine mitrewort, five-stamened mitrewort*
• Smelowskia calycina -Alpine smelowskia*
• Rumex paucifolius -Alpine sorrel, Mountain sorrel*
• Epilobium alpinum -Alpine willow-herb*
• Veronica wormskjoldii -American alpine speedwell*
• Polygonum bistortoides -American bistort, Western bistort, Snakeweed*
• Veronica americana -American brooklime*
• Scirpus americanus -American bulrush*
• Ulmus americana -American elm*
• Trollius laxus -American globeflower*
• Stellaria americana -American starwort*
• Bupleurum americanum -American thorough-wax*
• Vicia americana -American vetch*
• Alisma plantago-aquatica -American waterplantain*
• Eriogonum annuum -Annual buckwheat*
• Purshia tridentata -Antelope bitterbrush*
• Rosa arkansana -Arkansas rose*
• Balsamorhiza sagittata -Arrowleaf balsamroot*
• Senecio triangularis -Arrowleaf groundsel*
• Sagittaria cuneata -Arumleaf arrowhead, Wapato*
• Epilobium paniculatum -Autumn willow-herb, Tall annual willow-herb*
• Bahia oppositifolia -Bahia*
• Actea rubra -Baneberry*
• Mitella nuda -Bare-stemmed mitrewort, Stoloniferous mitrewort*
• Comandra umbellata -Bastard toadflax*
• Clintonia uniflora -Beadlily, Queen's cup, Bride's bonnet*
• Carex rostrata -Beaked sedge*
• Xerophyllum tenax -Beargrass*
• Salix bebbiana -Bebb's willow*
• Monarda fistulosa -Beebalm, Bergamot, Horsemint*
• Astragalus vexilliflexus v. vexilliflexus -Bent-flowered milkvetch*
• Oxytropis besseyi v.argophylla -Bessey's crazyweed*
• Geranium bicknellii -Bicknell's geranium*
• Lupinus polyphyllus var. burkei -Bigleaf lupine, many-leaved lupine, large-leaved lupine*
• Cercocarpus montanus -Birch-leaf mountain-mahogany, true mountain-mahogany*
• Spirea betulifolia -Birch-leaf spirea*
• Lewisia rediviva -Bitterroot*
• Solanum dulcamara -Bittersweet, Climbing nightshade, Felonwort, Blue bindweed*
• Populus trichocarpa -Black cottonwood*
• Sambucus racemosa v.melanocarpa -Black elderberry*
• Sarcobatus vermiculatus -Black greasewood*
• Crataegus douglasii -Black hawthorne*
• Hyoscyamis niger -Black henbane, Hog's bean*
• Medicago lupulina -Black medic*
• Gaillardia aristata -Blanketflower*
• Mentzelia laevicaulis -Blazing star*
• Camassia quamash -Blue camas*
• Sambucus mexicana -Blue elderberry*
• Iris missouriensis -Blue flag, Wild iris*
• Linum perenne -Blue flax*
• Bouteloua gracilis -Blue grama*
• Lactuca pulchella -Blue lettuce*
• Chorispora tenella -Blue mustard*
• Mertensia oblongifolia -Bluebells, Leafy bluebells*
• Pseudoregneria spicata -bluebunch wheatgrass*
• Sisyrinchium angustifolium -Blue-eyed-grass*
• Arenaria laterifolia -Bluntleaf sandwort*
• Acer negundo -Box elder*
• Verbena bracteata -Bracted verbena*
• Mitella breweri -Brewer's mitrewort*
• Rosa nutkana v. hispida -Bristley nootka rose*
• Saxifraga arguta -Brook saxifrage*
• Xanthocephalum sarothrae -Broom snakeweed*
• Menyanthes trifoliatum -Buckbean, bogbean*
• Solanum rostratum -Buffalo bur*
• Cornus unalashkensis -Bunchberry, Puddingberry*
• Quercus macrocarpa -Bur oak, Mossy-cup oak*
• Linaria vulgaris -Butter-and-eggs*
• Hesperochiron californicus -California hesperochiron*
• Shepherdia canadensis -Canada buffaloberry*
• Cirsium arvense -Canada thistle*
• Viola canadensis -Canada violet*
• Elymus canadensis -Canada wildrye*
• Platanthera hyperborea v. gracilis -Canyon bog-orchid*
• Sorbus scopulina v. scopulina -Cascade mountain-ash*
• Rhamnus purshiana -Cascara, Buckthorn*
• Nepeta cataria -Catnip*
• Typha latifolia -Cattail*
• Veronica catenata -Chain speedwell*
• Chamaerhodos erecta -Chamaerhodos*
• Bromus tectorum -Cheat grass, downy brome*
• Fritillaria atropurpurea -Checker lily, Chocolate lily, Leopard lily*
• Malva parviflora -Cheeseweed*
• Cichorium intybus -Chicory*
• Allium schoenoprasum -Chives*
• Prunus virginiana -Chokecherry*
• Potentilla gracilis v. glabrata -Cinquefoil*
• Polanisia trachysperma -Clammy-weed*
• Galium aparine -Cleavers, Goose-grass*
• Anemone multifida -Cliff anemone, Pacific anemone*
• Orobanche fasciculata -Clustered broomrape*
• Arctium minus -Cocklebur*
• Cryptantha celosioides -Cockscomb cryptantha, Northern cryptantha*
• Aquilegia coerulea -Colorado blue columbine, Blue columbine*
• Crataegus columbiana -Columbia hawthorn*
• Clematis columbiana -Columbia virgin's bower*
• Lamium amplexicaule -Common dead-nettle*
• Equisetum arvense -Common horsetail, snake-grass*
• Cynoglossum officinale -Common hound's tongue*
• Juniperus communis -Common juniper*
• Anaphalis margaritacea -Common pearly-everlasting*
• Portulaca oleracea -Common purslane*
• Potentilla anserina -Common silverweed*
• Hypericum perforatum -Common St. John's wort, Goatweed*
• Helianthus annuus -Common sunflower*
• Cirsium vulgare -Common thistle, Bull thistle, Field thistle*
• Physaria didymocarpa -Common twinpod*
• Epilobium glandulosum -Common willow-herb*
• Conimitella williiamsii -Conimitella*
• Tiarella trifoliata v. unifoliata -Coolwort, Foamflower, False-mitrewort, Laceflower*
• Lithospermum arvense -Corn gromwell*
• Mentha arvensis -Corn mint, Field mint*
• Euphorbia glyptosperma -Corrugate-seeded spurge*
• Lomatium cous -Cous, Cous bisquitroot*
• Heracleum lanatum -Cow-parsnip*
• Mahonia repens -Creeping barberry, Oregon-grape*
• Juniperus horizontalis -Creeping juniper, horizontal juniper*
• Sibbaldia procumbens -Creeping sibbaldia*
• Oxalis corniculata -Creeping yellow woodsorrel*
• Cercocarpus ledifolius -Curlleaf mountain-mahogany*
• Grindelia squarrosa -Curly-cup gumweed*
• Phlox pulvinata -Cushion phlox*
• Castilleja cusickii -Cusick's paintbrush*
• Synthyris pinnatifida v. canescens -Cut-leaf synthyris*
• Erigeron compositus v. glabratus -Cut-leaved daisy, Dwarf mountain fleabane*
• Solanum triflorum -Cut-leaved nightshade*
• Juncus ensifolius -Dagger-leaf rush*
• Erigeron strigosus var. strigosus -Daisy fleabane, branching daisy*
• Linaria dalmatica -Dalmatian toadflax*
• Taraxacum officinale -Dandelion*
• Crepis runcinata -Dandelion hawksbeard, Meadow hawksbeard*
• Penstemon cyaneus -Dark-blue penstemon*
• Zygadenus venenosus -Deadly zygadenus, Meadow death-camas*
• Selaginella densa -Dense clubmoss*
• Dianthus armeria -Deptford pink, Grass pink*
• Oplopanax horridum -Devil's club*
• Saxifraga rhomboidea -Diamondleaf saxifrage*
• Potentilla diversifolia -Diverse-leaved cinquefoil, Vari-leaf cinquefoil*
• Cuscuta approximata -Dodder*
• Apocynum androsaemifolium -Dogbane*
• Polygonum aviculare -Doorweed, Prostrate knotweed*
• Liatris punctata -Dotted gayfeather*
• Clematis hirsutissima -Douglas' clematis, Leatherflower, Vaseflower, Sugarbowls*
• Cicuta douglasii -Douglas' water hemlock*
• Castilleja sessiliflora -Downy painted-cup*
• Astragalus spatulatus -Draba milkvetch*
• Lychnis drummondii -Drummond campion*
• Anemone drummondii -Drummond's anemone*
• Astragalus drummondii -Drummond's milkvetch*
• Hedeoma drummondii -Drummond's pennyroyal*
• Polygonum convolvulus -Dullseed, Cornbind, Climbing bindweed, Knot bindweed, Ivy bindweed*
• Solidago simplex -Dune goldenrod*
• Trifolium nanum -Dwarf clover*
• Malva neglecta -Dwarf mallow*
• Viola adunca -Early blue violet, Hook violet*
• Aster eatonii -Eaton's aster*
• Valeriana edulis -Edible valerian, Tobacco-root*
• Arabis sparsiflora var.subvillosa -Elegant rockcress, sicklepod rockcress*
• Pedicularis groenlandica -Elephant-head*
• Cirsium scariosum -Elk thistle*
• Clarkia pulchella -Elkhorns clarkia*
• Lycopodium clavatum -Elk-moss, ground-pine, stag's horn moss*
• Caltha leptosepala -Elkslip, Eastern marshmarigold*
• Penstemon ellipticus -Elliptic-leaved beardtongue*
• Picea engelmannii -Engelmann spruce, Silver spruce*
• Plantago lanceolata -English plantain, Buckhorn plantain, Ribwort*
• Calypso bulbosa -Fairy-slipper*
• Leptarrhena pyrolifolia -False saxifrage, Leatherleaf saxifrage*
• Maianthemum racemosa -False Solomon's seal*
• Veratrum viride -False-hellebore*
• Thlaspi arvense -Fanweed*
• Lomatium foeniculaceum -Fennel-leaved desert-parsley*
• Chamaebatiaria millefolium -Fern-bush, Desert-sweet*
• Lomatium dissectum -Fern-leaved lomatium*
• Dyssodia papposa -Fetid marigold, False dogfennel*
• Dodecatheon pulchellum -Few-flowered shooting-star, Dark-throat shooting-star*
• Draba oligosperma -Few-seeded draba*
• Glecoma hederacea -Field balm, Creeping Charlie*
• Convolvulus arvensis -Field bindweed, Morning glory*
• Cerastium arvense -Field chickweed, Starry cerastium, field mouse-ear*
• Astragalus agrestis -Field milkvetch, Purple milkvetch*
• Brassica campestris -Field mustard, Common mustard*
• Antennaria neglecta -Field pussytoes*
• Luzula campestris v. multiflora -Field woodrush*
• Epilobium angustifolium -Fireweed*
• Verbascum thapsus -Flannel mullein*
• Descurainia sophia -Flixweed*
• Ranunculus natans -Floating western-buttercup*
• Menziesia ferruginea v. glabella -Fool's huckleberry, Mock azalea, Rusty menziesia*
• Hordeum jubatum -Foxtail barley*
• parnassia fimbriata -Fringed grass-of-Parnassus*
• Penstemon eriantherus -Fuzzy-tongue penstemon, Crested-tongue penstemon*
• Thuja plicata -Giant arborvitae, Western red-cedar*
• Ambrosia trifida -Giant ragweed*
• Potentilla arguta -Glandular cinquefoil*
• Chenopodium glaucum -Glaucous goosefoot, Oakleaf goosefoot*
• Zygadenus elegans -Glaucous zygadenus*
• Tragopogon dubius -Goatsbeard, Salsify*
• Heterotheca villosa -Golden aster*
• Corydalis aurea -Golden corydalis*
• Ribes aureum -Golden currant*
• Ivesia gordonii -Gordon's ivesia*
• Abies grandis -Grand fir*
• Artemisia tridentata ssp. tridentata -Great Basin big sagebrush*
• Fraxinus pennsylvanica -Green ash*
• Frasera speciosa -Green gentian*
• Asclepias viridiflora -Green milkweed*
• Pyrola chlorantha -Green wintergreen, Leafless pyrola*
• Astragalus crassicarpus -Ground plum, Buffalo plum*
• Vaccinium scoparium -Grouse whortleberry, Grouseberry*
• Oenothera caespitosa -Gumbo evening primrose*
• Machaeranthera grindeloides -Gumweed aster*
• Calochortus gunnisonii -Gunnison's mariposa, Sego-lily*
• Solanum sarrachoides -Hairy nightshade*
• Juncus hallii -Hall's rush*
• Conringia orientalis -Hare's ear mustard, Hare's ear cabbage, Treacle mustard*
• Trifolium haydenii -Hayden's clover*
• Arnica cordifolia -Heartleaf arnica*
• Listera cordata -Heart-leaf twayblade*
• Chaenactis douglasii -Hoary chaenactis, Hoary false-yarrow*
• Arabis holboellii var. retrofracta -Holboell's rockcress*
• Corallorhiza striata -Hooded coral-root, Striped coral-root*
• Phlox hoodii -Hood's phlox*
• Oenothera hookeri -Hooker's evening primrose*
• Arenaria hookeri -Hooker's sandwort*
• Townsendia hookeri -Hooker's townsendia*
• Penstemon deustus v. deustus -Hot-rock penstemon*
• Festuca idahoensis -Idaho fescue*
• Astragalus aboriginum -Indian milkvetch*
• Oryzopsis hymenoides -Indian rice-grass*
• Monotropa uniflora -Indian-pipe*
• Plantago patagonica -Indian-wheat*
• Bromus japonicus -Japanese brome*
• Phlox kelseyi v. kelseyi -Kelsey's plox*
• Hieracium aurantiacum -King devil, Orange hawkweed, Golden mouse-ear hawkweed*
• Sedum roseum -King's crown, Roseroot, Midsummer-men*
• Arctostaphylos uva-ursi -Kinnikinnik, Bearberry*
• Ledum glandulosum -Labrador tea*
• Draba lonchophora -Lancefruit draba*
• Sedum lanceolatum -Lanceleaved stonecrop*
• Platanthera orbiculata -Large round-leaved rein-orchid*
• Brickellia grandiflora -Large-flowered brickellia
• Lomatium macrocarpum -Large-fruit lomatium*
• Pyrola asarifolia -Leafless pyrola, alpine pyrola*
• Pedicularis racemosa v. alba -Leafy lousewort, Sickletop lousewort*
• Musineon divaricatum -Leafy musineon*
• Euphorbia esula -Leafy spurge*
• Astragalus convallarius -Lesser rushy milkvetch*
• Mimulus lewisii -Lewis' monkey-flower*
• Pinus flexilis -Limber pine*
• Aquilegia jonesii -Limestone columbine*
• Schizachyrium scoparium -little bluestem*
• Ranunculus uncinatus -Little buttercup*
• Marchantia polymorpha -liverwort*
• Pinus contorta -Lodgepole pine*
• Sisymbrium loesselii -Loesel tumblemustard*
• Oenothera subacaulis -Long-leaf evening primrose*
• Phlox longifolia -Long-leaf phlox*
• Oenothera flava -Long-tubed evening primrose*
• Grindelia nana -Low gumweed*
• Lupinus pusillus -Low lupine, Rusty lupine*
• Antennaria dimorpha -Low pussytoes*
• Salix rigida v. mackenzieana -Mackenzie willow*
• Eriogonum caespitosum -Mat buckwheat*
• Saxifraga bronchialis -Matted saxifrage, Spotted saxifrage*
• Spirea douglasii -Menzies' spirea*
• Cassiope mertensiana -Mertens' mountain heather*
• Claytonia perfoliata -Miner's lettuce*
• Montia perfoliata -Miner's lettuce*
• Solidago missouriensis -Missouri goldenrod*
• Ribes setosum -Missouri gooseberry*
• Astragalus missouriensis -Missouri milkvetch*
• Philadelphus lewisii -Mockorange, Syringa*
• Delphinium bicolor -Montana larkspur, Little larkspur*
• Silene acaulis -Moss campion, Moss pink, Cushion pink*
• Phlox muscoides -Moss phlox*
• Verbascum blattaria -Moth mullein*
• Alnus incana -Mountain alder*
• Arnica latifolia var. latifolia -Mountain arnica*
• Ceanothus velutinus -Mountain balm, Sticky-laurel, Snowbrush, Tobacco-brush*
• Artemisia tridentata ssp. vaseyana -Mountain big sagebrush*
• Mertensia ciliata -Mountain bluebells, Ciliate bluebells, Broad-leaf bluebells*
• Douglasia montana -Mountain douglasia*
• Valeriana sitchensis -Mountain heliotrope, Sitka valerian*
• Cypripedium montanum -Mountain lady's-slipper*
• Symphoricarpos oreophilus -Mountain snowberry*
• Oxyria digyna -Mountain sorrel*
• Thermopsis montana -Mountain thermopsis*
• Paxistima myrsinites -Mt.box, Mountain-lover, Myrtle boxwood, Oregon boxwood*
• Carduus nutans -Musk thistle*
• Orobanche uniflora -Naked broomrape*
• Collomia linearis -Narrow-leaf collomia*
• Populus angustifolia -Narrow-leaved cottonwood, Mountain cottonwood*
• Mirabilis linearis -Narrow-leaved four-o'clock*
• Carex nebrascensis -Nebraska sedge*
• Hesperostipa comata -Needle-and-thread grass*
• Urtica dioica -Nettle*
• agastache urticifolia -Nettle-leaf giant-hyssop*
• Ribes nevadense -Nevada currant*
• Physocarpus malvaceus -Ninebark*
• Lomatium triternatum -Nine-leaf lomatium*
• Allium cernuum -Nodding onion*
• Anemone parviflora -Northern anemone, Small-flowered anemone*
• Galium boreale -Northern bedstraw*
• Viola nephrophylla -Northern bog violet*
• Androsace septentrionalis -Northern fairy-candelabra*
• Gentiana amarella -Northern gentian*
• Parnassia palustris -Northern grass-of-Parnassus, Wideworld grass-of-Parnassus*
• Platanthera hyperborea v. hyperborea -Northern green bog-orchid*
• Cypripedium passerinum -Northern lady's slipper*
• Hedysarum boreale -Northern sweetvetch, Northern hdysarum*
• Castilleja angustifolia -Northwest paintbrush*
• Potentilla norvegica -Norwegian cinquefoil*
• Antennaria parviflora -Nuttall's pussytoes
• Holodiscus discolor -Ocean-spray*
• Pedicularis oederi -Oeder's lousewort*
• Orthilia secunda -One-sided wintergreen, Sidebells pyrola*
• Agoseris aurantiaca -Orange agoseris*
• Lonicera ciliosa -Orange vine honeysuckle, Trumpet honeysuckle, Northwest honeysuckle*
• Vaccinium ovalifolium -Oval-leaf huckleberry*
• Eriogonum ovalifolium v. celsum -Oval-leaved eriogonum, Cushion buckwheat*
• Chrysanthemum leucanthemum -Oxeye-daisy*
• Astragalus ceramicus -Painted milkvetch*
• Agoseris glauca var. agrestis -Pale agoseris, Short-beaked agoseris*
• Eritrichium nanum -Pale alpine forget-me-not*
• Scirpus pallidus -Pale bulrush*
• Erythronium grandiflorum -Pale fawn-lily, Yellow fawn-lily, Yellow dogtooth-violet*
• Betula papyrifera -Paper birch*
• Pedicularis parryi var. purpurea -Parry's lousewort*
• Townsendia parryi -Parry's townsendia*
• Anemone patens -Pasque flower, Crocus*
• Monolepsis nuttalliana -Patata*
• Salix amygdaloides -Peach-leaf willow*
• Oxytropis deflexa v. sericea -Pendent-pod crazyweed*
• Cardamine pensylvanica -Pennsylvania bittercress*
• Veronica persica -Persian speedwell*
• Salicornia rubra -Pickleweed, Glasswort, Samphire*
• Matricaria matricarioides -Pineapple weed*
• Pterospora andromedea -Pinedrops*
• Microsteris gracilis -Pink microsteris*
• Escobaria vivipara -Pink pincushion cactus, Cushion cactus, Ball cactus*
• Chimaphila umbellatum -Pipsissewa*
• Populus deltoides -Plains cottonwood*
• Astragalus gilviflorus -Plains orophaca*
• Gentiana affinis -Pleated gentian, Prairie gentian*
• Calochortus apiculatus -Pointed mariposa, Baker's mariposa*
• Conium maculatum -Poison-hemlock*
• Rhus radicans -Poison-ivy*
• Pinus ponderosa -Ponderosa pine, Yellow pine*
• Iva axillaris -Poverty weed*
• Ratibida columnifera -Prairie coneflower*
• Oenothera albicaulis -Prairie evening primrose*
• Lupinus lepidus var. utahensis -Prairie lupine*
• Lepidium densiflorum -Prairie pepperweed, Common pepperweed*
• Opuntia polyacantha -Prairie prickly-pear, Starvation cactus*
• Geum triflorum -Prairie smoke*
• Yucca glauca -Prairie yucca, Soapwell*
• Lactuca serriola -Prickly lettuce*
• Sonchus asper -Prickly sow-thistle*
• Amaranthus graezicans -Prostrate pigweed, Tumbleweed, Tumbleweed amaranth*
• Potentilla palustris -Purple cinquefoil, marsh cinquefoil*
• Dalea purpurea -Purple prairie clover*
• Aristida purpurea var. longiseta -Purple threeawn*
• Veronica peregrina v. peregrina -Purslane speedwell*
• Lewisia pygmaea -Pygmy bitterroot*
• Populus tremuloides -Quaking aspen, Trembling aspen*
• Oxytropis lagopus v. conjugens -Rabbit-foot crazyweed *
• Telesonix heucheriformis -Rafael James' saxifrage*
• Rubus idaeus v. gracilipes -Raspberry*
• Bromus brizaeformis -Rattle grass, rattlesnake grass*
• Rhinanthus crista-galli -Rattle-box*
• Goodyera oblongifolia -Rattlesnake plantain*
• Trifolium pratense -Red clover*
• Aquilegia formosa -Red columbine, Sitka columbine*
• Chenopodium rubrum -Red goosefoot*
• Besseya rubra -Red kittentail*
• Phylodoce empetriformis -Red mountain heath, Pink mountain heath*
• Cornus sericea -Red-osier dogwood*
• Ceanothus sanguineus -Redstem ceanothus*
• Castilleja rhexifolia -Rhexia-leaved paintbrush*
• Clarkia rhomboidea -Rhombic-petaled clarkia, common clarkia*
• Hymenoxis richardsonii -Richardson's hymenoxys*
• Geranium richardsonii -Richardson's white geranium*
• Atriplex dioica -Rillscale*
• Cleome serrulata -Rocky Mountain bee plant, Stinkweed*
• Pseudotsuga menziessii v. glauca -Rocky Mountain Douglas-fir*
• Helianthella uniflora -Rocky mountain helianthella*
• Juniperus scopulorum -Rocky Mountain juniper*
• Acer glabrum -Rocky mountain maple*
• Sedum rhodanthum -Rose crown*
• Galium asperrimum -Rough bedstraw*
• Lycopus asper -Rough bugleweed*
• Amaranthus retroflexus -Rough pigweed, Pigweed amaranth, Redroot amaranth*
• Erysimum asperum -Rough wallflower, Prairie rocket*
• Heuchera cylindrica -Roundleaf alumroot, Lava alumroot*
• Thermopsis rhombifolia -Round-leaved thermopsis*
• Viola orbiculata -Round-leaved violet, Darkwoods violet*
• Ericameria nauseosus -Rubber rabbitbrush*
• Lygodesmia juncea -Rush skeletonweed*
• Salsola kali -Russian thistle*
• Penstemon rydbergii -Rydberg's penstemon*
• Ranunculus glabberimus v. ellipticus -Sagebrush buttercup, Smooth buttercup*
• Calochortus macrocarpus -Sagebrush mariposa, Green-banded star-tulip*
• Onobrychis viciaefolia -Sainfoin*
• Heliotropium curassavicum -Salt heliotrope, Seaside heliotrope*
• Atriplex nuttallii -Saltsage*
• Mentzelia decapetala -Sand lily, Evening star*
• Leucocrinum montanum -Sand lily, Star lily, Mountain lily, Wild tuberose, Star-of-Bethlehem*
• Gaura coccinea -Scarlet gaura*
• Gilia aggregata -Scarlet gilia, Skyrocket*
• Sphaeralcea coccinea -Scarlet globemallow*
• Castilleja miniata -Scarlet paintbrush, Common paintbrush*
• Matricaria maritima -Scentless may-weed*
• Campanula rotundifolia -Scotch bellflower, Harebell, Lady'-thimble*
• Salix scouleriana -Scouler willow*
• Calochortus nuttallii -Sego-lily, Nuttall's sego-lily*
• Prunella vulgaris -Self-heal, All-heal*
• Amelanchier alnifolia -Serviceberry, Juneberry*
• Atriplex confertifolia -Shadscale, spiny saltbush, sheepfat*
• Erigeron pumilis ssp.intermedius var. euintermedius -Shaggy fleabane*
• Erigeron pumilis ssp.pumilis -Shaggy fleabane*
• Ranunculus acriformis -Sharp buttercup*
• Potentilla ovina -Sheep cinquefoil*
• Capsella bursa-pastoris -Shepherd's purse*
• Mahonia aquifolium -Shining oregon-grape, Tall oregon-grape*
• Ranunculus cymbalaria -Shore buttercup, Seaside buttercup*
• Allium brevistylum -Short-style onion*
• Castilleja pulchella -Showy Indian-paintbush*
• Asclepias speciosa -Showy milkweed*
• Phlox speciosa -Showy phlox*
• Pentaphylloides floribunda -Shrubby cinquefoil*
• Penstemon fruticosus v. fruticosus -Shrubby penstemon*
• Cardamine oligosperma -Siberia bittercress, Little western bittercress, Few-seeded bittercress*
• Oxytropis sericea v. sericea -Silky crazyweed*
• Oxytropis sericea v.spicata -Silky crazyweed*
• Lupinus sericeus -Silky lupine*
• Phacelia sericea -Silky phacelia*
• Shepherdia argentea -Silver buffaloberry*
• Artemisia cana -Silver sagebrush*
• Pediomelum argophyllum -Silver-leaved scurf-pea*
• Stellaria simcoe -Simcoe mountain starwort*
• Alnus sinuata -Sitka alder, Wavy-leaved alder*
• Rhus aromatica -Skunkbush sumac, Aromatic sumac*
• Lysitchitum americanum -Skunk-cabbage*
• Polemonium pulcherrimum -Skunk-leaved polemonium, Showy polemonium*
• Oxytropis campestris v. gracilis -Slender crazyweed, Field crazyweed*
• Astragalus gracilis -Slender milkvetch*
• Castilleja gracillima -Slender paintbush*
• Plantago elongata -Slender plantain*
• Suaeda occidentalis -Slender seablite*
• Psoralidium tenuiflorum -Slender-flowered scurf-pea, Slim-flowered scurf-pea*
• Delphinium depauperatum -Slim larkspur, Dwarf larkspur*
• Chenopodium leptophyllum -Slimleaf goosefoot*
• Dodecatheon conjugens -Slimpod shooting-star, Desert shooting-star*
• Erysimum inconspicuum -Small flowered rocket, Small wallflower*
• Amerorchis rotundifolia -Small round-leaved orchis*
• Viola macloskeyi -Small white violet*
• Lithophragma parviflora -Smallflower fringecup, Woodlandstar*
• Collinsia parviflora -Small-flowered blue-eyed Mary*
• Geranium pusillum -Small-flowered crane's-bill*
• Kalmia microphylla -Small-leaved laurel, Alpine laurel*
• Carex microptera -small-winged sedge*
• Aster laevis var. geyeri -Smooth aster*
• Solidago gigantea -Smooth goldenrod, Late goldenrod
• Rhus glabra -Smooth sumac*
• Carex disperma -Soft leaved sedge*
• Nuphar polysepalum -Spatterdock*
• Euphorbia spathulata -Spatulate-leaved spurge*
• Gilia spicata -Spicate gilia*
• Machaeranthera pinnatifida -Spiny goldenweed*
• Corallorhiza maculata -Spotted coral-root*
• Centaurea stoebe -Spotted knapweed*
• Hackelia patens -Spreading stickseed*
• Draba verna -Spring whitlow-wort*
• Maianthemum stellatum -Starry Solomon's seal*
• Tetraneuris acaulis -Stemless hymenoxys, Stemless tetraneuris*
• Ribes viscossissimum -Sticky currant*
• Geranium viscossissimum -Sticky geranium*
• Polemonium viscosum -Sticky polemonium, Sky pilot, Sticky jacob's ladder*
• Ribes hudsonianum -Stinking currant, Northern black currant*
• Erodium cicutarium -Storksbill, Alfilaria, Filaree*
• Fragaria virginiana -Strawberry*
• Viola glabella -Stream violet, Pioneer violet*
• Iliamna rivularis -Streambank globemallow, Wild hollyhock*
• Ranunculus eschscholtzii -Subalpine buttercup*
• Erigeron peregrinus ssp.callianthemus v. eucallianthemus -Subalpine daisy, Wandering daisy*
• Spirea densiflora -Subalpine spirea*
• Abies lasiocarpa -Subalpine-fir*
• Suckleya suckleyana -Suckleya*
• Orobanche ludoviciana -Suksdorf's broomrape*
• Eriogonum umbellatum v. subalpinum -Sulfur buckwheat*
• Potentilla recta -Sulfur cinquefoil*
• Castilleja sulphurea -Sulfur paintbrush*
• Penstemon attenuatus v. attenuatus -Sulfur penstemon*
• Ribes lacustre -Swamp gooseberry, Swamp black gooseberry, Prickly currant*
• Lupinus caudatus -Tailcup lupine, Kellog spurred lupine*
• Lactuca biennis -Tall blue lettuce*
• Antennaria anaphaloides -Tall pussy-toes*
• Suaeda intermedia -Tall seablite*
• Allium textile -Textile onion*
• Senecio crassulus -Thick-leaved groundsel*
• Elymus lanceolatus ssp. lanceolatus -Thickspike wheatgrass*
• Rubus parviflorus -Thimbleberry*
• Orthocarpus tenuifolius -Thin-leaved owl-clover*
• Phacelia linearis -Threadleaf phacelia*
• Veronica serpyllifolia -Thyme-leaved speedwell*
• Astragalus pectinatus -Tine-leaved milkvetch*
• Penstemon procerus v. procerus -Tiny-bloom penstemon, Small-flower penstemon*
• Microseris cuspidata -Toothed microseris*
• Adenocaulon bicolor -Trail-plant, Pathfinder*
• Aster pansus -Tufted white prairie aster*
• Schedonnardus paniculatus -Tumblegrass*
• Arnica sororia -Twin arnica*
• Lonicera involucrata -Twinberry honeysuckle, Bearberry honeysuckle*
• Astragalus bisulcatus -Two-groove milkvetch*
• Ranunculus inamoenus -Unlovely buttercup*
• Delphinium nuttallianum var. nuttallianum -Upland larkspur*
• Lonicera utahensis -Utah honeysuckle*
• Viola nuttallii v.vallicola -Valley yellow violet*
• Phacelia heterophylla var. heterophylla -Varileaf phacelia, Virgate phacelia*
• Rumex venosus -Veiny dock, Winged dock, Wild begonia*
• Thalictrum venulosum -Veiny meadowrue*
• Lupinus leucophyllus -Velvet lupine*
• Veronica arvensis -Wall speedwell, Common speedwell*
• Prosartes trachycarpa -Wartberry fairy-bells, Sierra fairy-bells*
• Betula occidentalis -Water birch, spring birch, red birch*
• Polygonum coccineum -Water smartweed*
• Veronica anaphalis-aquatica -Water speedwell, Water pimpernell*
• Rorippa nasturtium-aquaticum -Water-cress*
• Hydrophyllum capitatum -Waterleaf*
• Epilobium watsonii -Watson's willow-herb*
• Cirsium undulatum -Wavy-leaved thistle*
• Ribes cereum v. cereum -Wax currant*
• Penstemon nitidus v. nitidus -Waxleaf penstemon, Shining penstemon*
• Astragalus miser -Weedy milkvetch*
• Ribes laxiflorum -Western black currant, Trailing black currant*
• Clematis ligusticifolia -Western clematis, White virgin's_bower*
• Lithospermum ruderale -Western gromwell, Columbia puccoon*
• Crepis occidentalis -Western hawksbeard*
• Tsuga heterophylla -Western hemlock, pacific hemlock, lowland hemlock*
• Larix occidentalis -Western larch, mountain larch, hackmatack, tamarack, western tamarack*
• Delphinium occidentale -Western larkspur, Duncecap larkspur*
• Thalictrum occidentale -Western meadowrue*
• Castilleja occidentalis -Western paintbrush*
• Ambrosia psilostachya -Western ragweed, Common ragweed*
• Symphoricarpos occidentalis -Western snowberry, Wolfberry*
• Claytonia lanceolata -Western springbeauty, Lanceleaf springbeauty*
• Lappula redowskii -Western stickseed*
• Osmorhiza occidentalis -Western sweet-root*
• Linnaea borealis -Western twinflower*
• Pascopyrum smithii -Western wheatgrass*
• Aster hesperius -Western willow aster, Marsh aster*
• Taxus brevifolia -Western yew, Pac yew*
• Salix lasiandra -Whiplash willow, Caudate willow*
• Platanthera dilatata -White bog-orchid, Boreal bog-orchid, Leafy white orchis, Bog candle*
• Lychnis alba -White campion, Evening campion*
• Trifolium repens -White clover*
• Pedicularis contorta v. contorta -White coiled-beak lousewort*
• Dryas octopetala -White dryad*
• Pinus monticola -White pine*
• Dalea candida -White prairie clover*
• Rhododendron albiflorum -White rhododendron, Cascade azalea, white-flowered azalea*
• Symphoricarpos albus -White snowberry*
• Picea glauca -White spruce*
• Melilotus alba -White sweet-clover*
• Trillium ovatum -White trillium, Western wake-robin, Western trillium*
• Pinus albicaulis -Whitebark pine*
• Hieracium albiflorum -White-flowered hawkweed*
• Penstemon albidus -White-flowered penstemon*
• Phacelia hastata -Whiteleaf phacelia, Silverleaf phacelia*
• Cardaria draba -Whitetop*
• Gentiana algida -Whitish gentian*
• Paronychia sessiliflora -Whitlow wort*
• Calochortus eurycarpus -Wide-fruited mariposa, Big-pod mariposa*
• Asarum caudatum -Wild ginger*
• Triteliea grandiflora -Wild hyacinth, Brodiaea*
• Glychyrrhiza lepidota -Wild licorice, Licorice root*
• Aralia nudicaulis -Wild sarsaparilla*
• Barbarea orthocereus -Wintercress*
• Ceratoides lanata -Winterfat*
• Corallorhiza wisteriana -Wister coral-root*
• Myosotis asiatica -Wood forget-me-not*
• Lilium philadelphicum -Wood lily, Philadelphia lily, Red lily*
• Moneses uniflora -Woodnymph, Single delight, Wintergreen, Wax-flower wintergreen*
• Rosa woodsii v. ultramontana -Wood's rose*
• Packera cana -Woolly groundsel*
• Sedum stenopetalum -Wormleaf stonecrop*
• Eriogonum heracleoides var. angustifolium -Wyeth buckwheat, parsnip-flowered eriogonum*
• Lupinus wyethii -Wyeth's lupine*
• Artemisia tridentata ssp. wyomingensis -Wyoming big sagebrush*
• Besseya wyomingensis -Wyoming kittentail*
• Achillea millefolium -Yarrow*
• Cleome lutea -Yellow bee plant*
• Fritillaria pudica -Yellow bell*
• Eriogonum flavum -Yellow buckwheat*
• Trifolium agrarium -Yellow clover*
• Aquilegia flavescens -Yellow columbine*
• Linum rigidum -Yellow flax, Large-flowered yellow flax*
• Lithospermum incisum -Yellow gromwell*
• Hieracium pratense -Yellow hawkweed*
• Hedysarum sulphurescens -Yellow hedysarum*
• Cypripedium parviflorum -Yellow lady's slipper*
• Mimulus guttatus v. guttatus -Yellow monkey-flower*
• Phylodoce glanduliflora -Yellow mountain heath, Cream mountain heath*
• Orthocarpus luteus -Yellow owl-clover*
• Escobaria missouriensis -Yellow pincushion cactus, Nipple cactus*
• Viola nuttallii v.nuttallii -Yellow prairie violet*
• Carex flava -Yellow sedge*
• Melilotus officinalis -Yellow sweet-clover*
• Ranunculus flabellaris -Yellow western buttercup*
• Castilleja lutescens -Yellowish paintbrush*
• -*

*Species page has photo(s).