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2940 Plants Found

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Scientific Name	Common Name	†	Map‡
Iris missouriensis Nutt.	Rocky Mountain Iris
Juniperus scopulorum Sarg.	Rocky Mountain Juniper
Acer glabrum Torr.	Rocky Mountain Maple
Antennaria media Greene	Rocky Mountain pussytoes
Juncus saximontanus A. Nelson	Rocky Mountain rush
Dasynotus daubenmirei I.M. Johnst.	Rocky Mountain Whitethroat
Epilobium saximontanum Hausskn.	Rocky Mountain willowherb
Woodsia scopulina D.C. Eaton	Rocky Mountain woodsia
Senecio megacephalus Nutt.	rocky ragwort
Penstemon roezlii Regel	Roezl's Penstemon
Lomatium rollinsii Mathias & Constance	Rollins' Biscuitroot
Spiraea splendens Baumann ex K. Koch	rose meadowsweet
Spiraea douglasii Hook.	rose spirea
Geum rossii (R. Br.) Ser.	Ross' Avens
Carex rossii Boott	Ross' sedge
Balsamorhiza rosea A. Nelson & J.F. Macbr.	rosy balsamroot
Gilia sinuata Douglas ex Benth.	Rosy Gilia
Orthocarpus bracteosus Benth.	Rosy Owl's-Clover
Antennaria rosea Greene	rosy pussytoes
Echinochloa muricata (P. Beauv.) Fernald	rough barnyardgrass
Campanula scabrella Engelm.	Rough Bellflower
Agrostis scabra Willd.	Rough Bentgrass
Poa trivialis L.	Rough Bluegrass
Bromus squarrosus L.	Rough Brome
Lycopus asper Greene	Rough Bugleweed
Xanthium strumarium L.	rough cocklebur
Blepharipappus scaber Hook.	rough eyelashweed
Stachys rigida Nutt. ex Benth.	rough hedgenettle
Amaranthus tuberculatus (Moq.) Sauer	Roughfruit Amaranth
Rubus lasiococcus A. Gray	roughfruit berry
Galium tricornutum Dandy	roughfruit corn bedstraw
Prosartes trachycarpa S. Watson	roughfruit fairybells
Eurybia radulina (A. Gray) G.L. Nesom	roughleaf aster
Oryzopsis asperifolia Michx.	roughleaf ricegrass
Juncus compressus Jacq.	roundfruit rush
Heuchera cylindrica Douglas ex Hook.	roundleaf alumroot
Drosera rotundifolia L.	roundleaf sundew
Polemonium carneum A. Gray	royal Jacob's-ladder
Penstemon speciosus Douglas ex Lindl.	Royal Penstemon
Piperia transversa Suksd.	royal rein orchid
Ericameria nauseosa (Pall. ex Pursh) G.L. Nesom & Baird	rubber rabbitbrush
Lycopodium clavatum L.	running clubmoss
Antennaria luzuloides Torr. & A. Gray	Rush Pussytoes
Lygodesmia juncea (Pursh) D. Don ex Hook.	rush skeletonplant
Eryngium petiolatum Hook.	Rushleaf Eryngo
Shepherdia canadensis (L.) Nutt.	Russet Buffaloberry
Astragalus falcatus Lam.	Russian milkvetch
Elaeagnus angustifolia L.	Russian Olive
Psathyrostachys juncea (Fisch.) Nevski	Russian wildrye
Lupinus pusillus Pursh	rusty lupine
Menziesia ferruginea Sm.	rusty menziesia
Plagiobothrys nothofulvus (A. Gray) A. Gray	rusty popcornflower
Arnica rydbergii Greene	Rydberg's arnica
Penstemon rydbergii A. Nelson	Rydberg's Penstemon
Bromus secalinus L.	rye brome
Lupinus sabinianus Douglas ex Lindl.	Sabin's lupine
Datura wrightii Regel	Sacred Thorn-Apple
Carthamus tinctorius L.	safflower
Ranunculus glaberrimus Hook.	sagebrush buttercup
Nothocalais troximoides (A. Gray) Greene	sagebrush false dandelion
Calochortus macrocarpus Douglas	sagebrush mariposa lily
Phlox aculeata A. Nelson	sagebrush phlox
Viola vallicola A. Nelson	sagebrush violet
Salix candida Flueggé ex Willd.	sageleaf willow
Stuckenia pectinata (L.) Börner	Sago Pondweed
Onobrychis viciifolia Scop.	sainfoin
Gaultheria shallon Pursh	salal
Atriplex dioica Raf.	Saline Saltbush
Erigeron salmonensis S.J. Brunsfeld & G.L. Nesom	Salmon River Fleabane
Rubus spectabilis Pursh	salmonberry
Lomatium salmoniflorum (J.M. Coult. & Rose) Mathias & Constance	Salmonflower Biscuitroot
Tragopogon porrifolius L.	salsify
Heliotropium curassavicum L.	salt heliotrope
Carex hassei L.H. Bailey	Salt Sedge
Sidalcea neomexicana A. Gray	salt spring checkerbloom
Distichlis spicata (L.) Greene	Saltgrass
Halogeton glomeratus (M. Bieb.) C.A. Mey.	saltlover
Stellaria humifusa Rottb.	saltmarsh starwort
Cardamine parviflora L.	sand bittercress
Sporobolus cryptandrus (Torr.) A. Gray	sand dropseed
Thysanocarpus curvipes Hook.	sand fringepod
Aliciella leptomeria (A. Gray) J.M. Porter	sand gilia
Claytonia arenicola L.F. Hend.	sand springbeauty
Poa secunda J. Presl	Sandberg Bluegrass
Lomatium sandbergii (J.M. Coult. & Rose) J.M. Coult. & Rose	Sandberg's biscuitroot
Prunus pumila L.	Sandcherry
Cryptantha fendleri (A. Gray) Greene	sanddune cryptantha
Erysimum capitatum (Douglas ex Hook.) Greene	Sanddune Wallflower
Silene sargentii S. Watson	Sargent's Catchfly
Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem.	Saskatoon serviceberry
Helianthus grosseserratus M. Martens	Sawtooth Sunflower
Petrorhagia saxifraga (L.) Link	saxifrage pink
Erigeron bloomeri A. Gray	Scabland Fleabane
Penstemon deustus Douglas ex Lindl.	Scabland Penstemon
Artemisia rigida (Nutt.) A. Gray	scabland sagebrush
Botrychium crenulatum W.H. Wagner	scalloped moonwort
Oenothera suffrutescens (Moc. & Sessé ex Ser.) W.L.Wagner & Hoch	Scarlet Beeblossom
Pyracantha coccinea M. Roem.	scarlet firethorn
Ipomopsis aggregata (Pursh) V.E. Grant	scarlet gilia
Sphaeralcea coccinea (Nutt.) Rydb.	scarlet globemallow
Mimulus cardinalis Douglas ex Benth.	scarlet monkeyflower
Cyperus schweinitzii Torr.	Schweinitz's flatsedge
Cytisus scoparius (L.) Link	Scotch broom
Onopordum acanthium L.	Scotch cottonthistle
Galium sylvaticum L.	Scotch mist
Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst.	Scouler's popcornflower
Hypericum scouleri Hook.	Scouler's St. Johnswort
Valeriana scouleri Rydb.	Scouler's valerian
Salix scouleriana Barratt ex Hook.	Scouler's willow
Hieracium scouleri Hook.	Scouler's Woollyweed
Equisetum hyemale L.	scouringrush horsetail
Corydalis aurea Willd.	scrambled eggs
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi	Scratchgrass
Scribneria bolanderi (Thurb.) Hack.	Scribner's grass
Lysimachia maritima (L.) Galasso, Banfi & Soldano	Sea Milkwort
Chenopodium opulifolium Schrad. ex W.D.J. Koch & Ziz	seaport goosefoot
Agrostis pallens Trin.	Seashore Bentgrass
Hordeum marinum Huds.	seaside barley
Silene seelyi Morton & J.W. Thomp.	Seely's catchfly
Mimulus guttatus DC.	Seep Monkeyflower
Viola selkirkii Pursh ex Goldie	Selkirk's violet
Claytonia exigua Torr. & A. Gray	serpentine springbeauty
Balsamorhiza serrata A. Nelson & J.F. Macbr.	serrate balsamroot
Penstemon serrulatus Menzies ex Sm.	serrulate penstemon
Sagittaria rigida Pursh	sessilefruit arrowhead
Mertensia umbratilis Greenm.	shade bluebells
Phacelia nemoralis Greene	shade phacelia
Atriplex confertifolia (Torr. & Frém.) S. Watson	Shadscale Saltbush
Erigeron pumilus Nutt.	shaggy fleabane
Astragalus malacus A. Gray	Shaggy Milkvetch
Lepidium lasiocarpum Nutt.	shaggyfruit pepperweed
Ranunculus acriformis A. Gray	sharpleaf buttercup
Penstemon acuminatus Douglas ex Lindl.	Sharpleaf Penstemon
Valeriana acutiloba Rydb.	sharpleaf valerian
Eriogonum pyrolifolium Hook.	Shasta buckwheat
Carex straminiformis L.H. Bailey	Shasta Sedge
Potentilla ovina Macoun ex J.M. Macoun	sheep cinquefoil
Festuca ovina L.	Sheep Fescue
Carex illota L.H. Bailey	sheep sedge
Astragalus sheldonii (Rydb.) Barneby	Sheldon's Milkvetch
Carex sheldonii Mack.	Sheldon's Sedge
Viola sheltonii Torr.	Shelton's violet
Capsella bursa-pastoris (L.) Medik.	shepherd's purse
Geranium lucidum L.	shining geranium
Lepidium nitidum Nutt.	shining pepperweed
Stellaria nitens Nutt.	Shiny Chickweed
Cotoneaster lucidus Schltdl.	shiny cotoneaster
Xanthoceras sorbifolium Bunge	Shiny Leaf Yellowhorn
Spiraea lucida Douglas ex Greene	shinyleaf spirea
Psilocarphus brevissimus Nutt.	short woollyheads
Symphyotrichum frondosum (Nutt.) G.L. Nesom	short-rayed alkali aster
Alopecurus aequalis Sobol.	Shortawn Foxtail
Carex brevior (Dewey) Mack.	shortbeak sedge
Mimulus breviflorus Piper	shortflower monkeyflower
Salix brachycarpa Nutt.	Shortfruit Willow
Penstemon seorsus (A. Nelson) D.D. Keck	Shortlobe Penstemon
Erigeron lonchophyllus Hook.	Shortray Fleabane
Myriophyllum sibiricum Kom.	shortspike watermilfoil
Plectritis congesta (Lindl.) DC.	shortspur seablush
Cerastium brachypodum (Engelm. ex A. Gray) B.L. Rob.	shortstalk chickweed
Carex podocarpa R. Br.	shortstalk sedge
Carex brevicaulis Mack.	shortstem sedge
Rudbeckia alpicola Piper	Showy Coneflower
Heliomeris multiflora Nutt.	showy goldeneye
Asclepias speciosa Torr.	showy milkweed
Phlox speciosa Pursh	showy phlox
Antennaria pulcherrima (Hook.) Greene	showy pussytoes
Carex spectabilis Dewey	showy sedge
Hackelia hispida (A. Gray) I.M. Johnst.	showy stickseed
Townsendia florifer (Hook.) A. Gray	showy Townsend daisy
Galium multiflorum Kellogg	shrubby bedstraw
Dasiphora fruticosa (L.) Rydb.	Shrubby Cinquefoil
Gilia inconspicua (Sm.) Sweet	shy gilia
Erysimum inconspicuum (S. Watson) MacMill.	Shy Wallflower
Malus baccata (L.) Borkh.	Siberian crab apple
Ulmus pumila L.	Siberian Elm
Caragana arborescens Lam.	Siberian Peashrub
Claytonia sibirica L.	Siberian springbeauty
Atriplex falcata (M.E. Jones) Standl.	sickle saltbush
Lupinus albicaulis Douglas	sicklekeel lupine
Boechera sparsiflora (Nutt.) Dorn	Sicklepod Rockcress
Pedicularis racemosa Douglas ex Benth.	Sickletop Lousewort
Orthilia secunda (L.) House	sidebells wintergreen
Pellaea brachyptera (T. Moore) Baker	Sierra cliffbrake
Corydalis caseana A. Gray	Sierra fumewort
Carex leporinella Mack.	Sierra hare sedge
Delphinium glaucum S. Watson	Sierra larkspur
Lathyrus nevadensis S. Watson	Sierra pea
Juncus nevadensis S. Watson	Sierra Rush
Dodecatheon jeffreyi Van Houtte	Sierra shootingstar
Balsamorhiza sericea W.A. Weber	Silky Balsamroot
Lupinus sericeus Pursh	silky lupine
Phacelia sericea (Graham) A. Gray	silky phacelia
Potentilla argentea L.	silver cinquefoil
Aira caryophyllea L.	silver hairgrass
Acer saccharinum L.	Silver Maple	✓
Antennaria argentea Benth.	silver pussytoes
Artemisia cana Pursh	silver sagebrush
Elaeagnus commutata Bernh. ex Rydb.	silverberry
Cacaliopsis nardosmia (A. Gray) A. Gray	silvercrown
Phacelia hastata Douglas ex Lehm.	Silverleaf Phacelia
Atriplex argentea Nutt.	silverscale saltbush
Argentina anserina (L.) Rydb.	Silverweed Cinquefoil
Lupinus argenteus Pursh	Silvery Lupine
Carex canescens L.	silvery sedge
Allium simillimum L.F. Hend.	Simil Onion
Silene scouleri Hook.	Simple Campion
Moneses uniflora (L.) A. Gray	Single Delight
Ericameria suffruticosa (Nutt.) G.L. Nesom	Singlehead Goldenbush
Veratrum insolitum Jeps.	Siskiyou False Hellebore
Packera macounii (Greene) W.A. Weber & Á. Löve	Siskiyou Mountain ragwort
Valeriana sitchensis Bong.	Sitka valerian
Salix sitchensis Sanson ex Bong.	Sitka willow
Vulpia octoflora (Walter) Rydb.	sixweeks fescue
Eragrostis lutescens Scribn.	sixweeks lovegrass
Ambrosia tomentosa Nutt.	Skeletonleaf Bur Ragweed
Veronica scutellata L.	Skullcap Speedwell
Navarretia squarrosa (Eschsch.) Hook. & Arn.	skunkbush
Rhus trilobata Nutt.	Skunkbush Sumac
Pectocarya penicillata (Hook. & Arn.) A. DC.	sleeping combseed
Silene antirrhina L.	sleepy silene
Platanthera stricta Lindl.	slender bog orchid
Eriogonum microthecum Nutt.	Slender Buckwheat
Schoenoplectus heterochaetus (Chase) Soják	slender bulrush
Potentilla gracilis Douglas ex Hook.	slender cinquefoil
Clarkia gracilis (Piper) A. Nelson & J.F. Macbr.	slender clarkia
Eriophorum gracile W.D.J. Koch	slender cottongrass
Draba albertina Greene	Slender Draba
Cyperus bipartitus Torr.	slender flatsedge
Erigeron tener (A. Gray) A. Gray	Slender Fleabane
Thermopsis gracilis Howell	slender goldenbanner
Deschampsia elongata (Hook.) Munro	Slender Hairgrass
Crepis atribarba A. Heller	slender hawksbeard
Alopecurus myosuroides Huds.	Slender Meadow Foxtail
Eremogone capillaris (Poir.) Fenzl	Slender Mountain Sandwort
Avena barbata Pott ex Link	slender oat
Microsteris gracilis (Hook.) Greene	slender phlox
Sphenopholis intermedia (Rydb.) Rydb.	slender wedgescale
Elymus trachycaulus (Link) Gould ex Shinners	Slender Wheatgrass
Lithophragma tenellum Nutt.	Slender Woodland-Star
Psilocarphus tenellus Nutt.	slender woollyheads
Oxalis dillenii Jacq.	Slender Yellow Woodsorrel
Piperia unalascensis (Spreng.) Rydb.	slender-spire orchid
Carex athrostachya Olney	Slenderbeak Sedge
Epilobium leptocarpum Hausskn.	slenderfruit willowherb
Lomatium laevigatum (Nutt.) J.M. Coult. & Rose	Slickrock Biscuitroot
Amaranthus hybridus L.	Slim Amaranth
Delphinium depauperatum Nutt.	slim larkspur
Calamagrostis stricta (Timm) Koeler	slimstem reedgrass
Carex obnupta L.H. Bailey	slough sedge
Senecio lugens Richardson	small blacktip ragwort
Mertensia longiflora Greene	small bluebells
Anchusa arvensis (L.) M. Bieb.	small bugloss
Sparganium natans L.	small bur-reed
Camassia quamash (Pursh) Greene	small camas
Vaccinium oxycoccos L.	small cranberry
Circaea alpina L.	Small Enchanter's Nightshade
Vulpia microstachys (Nutt.) Munro	small fescue
Glyceria borealis (Nash) Batchelder	small floating mannagrass
Geranium pusillum L.	Small Geranium
Allium parvum Kellogg	Small Onion
Phacelia minutissima L.F. Hend.	Small Phacelia
Potamogeton pusillus L.	small pondweed
Madia exigua (Sm.) A. Gray	small tarweed
Sisymbrium loeselii L.	small tumbleweed mustard
Viola macloskeyi Lloyd	small white violet
Stephanomeria exigua Nutt.	Small Wirelettuce
Ranunculus abortivus L.	Small-Flowered Buttercup
Galinsoga parviflora Cav.	Small-Flowered Quickweed
Angelica pinnata S. Watson	Small-Leaf Angelica
Agrostis microphylla Steud.	Small-Leaf Bentgrass
Antennaria parvifolia Nutt.	small-leaf pussytoes
Linum micranthum A.Gray	Smallflower Dwarf-flax
Lipocarpha micrantha (Vahl) G. Tucker	smallflower halfchaff sedge
Lupinus polycarpus Greene	smallflower lupine
Mitella stauropetala Piper	smallflower miterwort
Nemophila parviflora Douglas ex Benth.	smallflower nemophila
Tamarix parviflora DC.	smallflower tamarisk
Lithophragma parviflorum (Hook.) Nutt. ex Torr. & A. Gray	smallflower woodland-star
Anemone parviflora Michx.	smallflowered anemone
Luzula parviflora (Ehrh.) Desv.	Smallflowered Woodrush
Arnica gracilis Rydb.	smallhead arnica
Trifolium microcephalum Pursh	smallhead clover
Pyrrocoma liatriformis Greene	smallhead goldenweed
Carex microptera Mack.	smallwing sedge
Melica smithii (Porter ex A. Gray) Vasey	Smith's melicgrass
Symphyotrichum laeve (L.) Á. Löve & D. Löve	Smooth Blue Aster
Bromus inermis Leyss.	smooth brome
Pellaea glabella Mett. ex Kuhn	smooth cliffbrake
Digitaria ischaemum (Schreb.) Schreb. ex Muhl.	smooth crabgrass
Lasthenia glaberrima DC.	smooth goldfields
Chenopodium subglabrum (S. Watson) A. Nelson	smooth goosefoot
Crepis capillaris (L.) Wallr.	smooth hawksbeard
Hieracium laevigatum Willd.	Smooth Hawkweed
Equisetum laevigatum A. Braun	smooth horsetail
Rhus glabra L.	Smooth Sumac
Carex integra Mack.	smoothbeak sedge
Mentzelia laevicaulis (Hook.) Torr. & A. Gray	Smoothstem Blazingstar
Carex laeviculmis Meinsh.	smoothstem sedge
Phlox colubrina Wherry & Constance	Snake River phlox
Elymus wawawaiensis J. Carlson & Barkworth	Snake River wheatgrass
Achillea ptarmica L.	Sneezeweed
Eriogonum niveum Douglas ex Benth.	snow buckwheat
Potentilla nivea L.	Snow Cinquefoil
Ribes niveum Lindl.	snow currant
Douglasia nivalis Lindl.	snow dwarf-primrose
Rubus nivalis Douglas ex Hook.	snow raspberry
Salix nivalis Hook.	snow willow
Cerastium tomentosum L.	Snow-In-Summer
Pediocactus nigrispinus (Hochstätter) Hochstätter	snowball cactus
Draba crassifolia Graham	snowbed draba
Ceanothus velutinus Douglas ex Hook.	Snowbrush Ceanothus
Galanthus nivalis L.	snowdrop
Pyrola minor L.	snowline wintergreen
Bromus hordeaceus L.	Soft Brome
Lupinus mollis A. Heller	soft lupine
Plagiobothrys mollis (A. Gray) I.M. Johnst.	soft popcornflower
Carex disperma Dewey	Softleaf Sedge
Schoenoplectus tabernaemontani (C.C. Gmel.) Palla	softstem bulrush
Sorghum bicolor (L.) Moench	Sorghum
Prunus cerasus L.	sour cherry
Catalpa bignonioides Walter	Southern Catalpa
Typha domingensis Pers.	southern cattail
Echinops ritro L.	southern globethistle
Najas guadalupensis (Spreng.) Magnus	southern waternymph
Artemisia abrotanum L.	southernwood
Astragalus spaldingii A. Gray	Spalding's milkvetch
Silene spaldingii S. Watson	Spalding's silene
Spartium junceum L.	Spanish broom
Platanthera sparsiflora (S. Watson) Schltr.	sparse-flowered bog orchid
Carex tenuiflora Wahlenb.	sparseflower sedge
Atriplex patula L.	spear saltbush
Agoseris retrorsa (Benth.) Greene	Spearleaf Agoseris
Arnica longifolia D.C. Eaton	spearleaf arnica
Sedum lanceolatum Torr.	spearleaf stonecrop
Mentha spicata L.	Spearmint
Nothocalais nigrescens (L.F. Hend.) A. Heller	speckled false dandelion
Agrostis exarata Trin.	spike bentgrass
Carex nardina Fr.	spike sedge
Trisetum spicatum (L.) K. Richt.	Spike Trisetum
Delphinium stachydeum (A. Gray) Tidestr.	Spiked Larkspur
Muhlenbergia glomerata (Willd.) Trin.	Spiked Muhly
Luzula spicata (L.) DC.	spiked woodrush
Tetradymia canescens DC.	spineless horsebrush
Collinsia sparsiflora Fisch. & C.A. Mey.	spinster's blue eyed Mary
Dryopteris carthusiana (Vill.) H.P. Fuchs	spinulose woodfern
Xanthium spinosum L.	spiny cocklebur
Phemeranthus spinescens (Torr.) Hershkovitz	spiny fameflower
Glossopetalon spinescens A. Gray	spiny greasebush
Grayia spinosa (Hook.) Moq.	spiny hopsage
Astragalus kentrophyta A. Gray	Spiny Milkvetch
Carduus acanthoides L.	spiny plumeless thistle
Sonchus asper (L.) Hill	spiny sowthistle
Isoetes tenella Léman ex Desv.	Spiny-Spore Quillwort
Ranunculus muricatus L.	spinyfruit buttercup
Ruppia cirrhosa (Petagna) Grande	spiral ditchgrass
Carex tumulicola Mack.	splitawn sedge
Packera dimorphophylla (Greene) W.A. Weber & Á. Löve	Splitleaf Groundsel
Castilleja rhexiifolia Rydb.	splitleaf Indian paintbrush
Heterotheca barbata (Rydb.) Semple	Spokane false goldenaster
Eriogonum maculatum A. Heller	spotted buckwheat
Corallorhiza maculata (Raf.) Raf.	Spotted Coralroot
Fritillaria atropurpurea Nutt.	spotted fritillary
Lamium maculatum L.	Spotted Henbit
Centaurea stoebe L.	spotted knapweed
Medicago arabica (L.) Huds.	spotted medick
Euphorbia maculata (L.) Small	Spotted Spurge
Cicuta maculata L.	Spotted Water Hemlock
Galium humifusum M. Bieb.	Spreading Bedstraw
Cotoneaster divaricatus Rehder & E.H. Wilson	spreading cotoneaster
Apocynum androsaemifolium L.	Spreading Dogbane
Erigeron divergens Torr. & A. Gray	spreading fleabane
Ribes divaricatum Douglas	Spreading Gooseberry
Gayophytum diffusum Torr. & A. Gray	Spreading Groundsmoke
Torilis arvensis (Huds.) Link	spreading hedgeparsley
Montia diffusa (Nutt.) Greene	spreading minerslettuce
Phlox diffusa Benth.	spreading phlox
Loeflingia squarrosa Nutt.	spreading pygmyleaf
Hackelia diffusa (Lehm.) I.M. Johnst.	spreading stickseed
Erysimum repandum L.	spreading wallflower
Elymus scribneri (Vasey) M.E. Jones	spreading wheatgrass
Dryopteris expansa (C. Presl) Fraser-Jenkins & Jermy	spreading woodfern
Rorippa sinuata (Nutt.) Hitchc.	spreading yellowcress
Boechera divaricarpa (A.Nelson) Á.Löve & D.Löve	Spreadingpod Rockcress
Draba verna L.	spring draba
Myosotis verna Nutt.	spring forget-me-not
Ribes watsonianum Koehne	spring gooseberry
Milium vernale M. Bieb.	Spring Milletgrass
Veronica verna L.	spring speedwell
Impatiens ecornuta Gerry Moore, Zika & Rushworth	Spurless Touch-me-not
Centaurea virgata Lam.	squarrose knapweed
Viburnum edule (Michx.) Raf.	Squashberry
Elymus elymoides (Raf.) Swezey	Squirreltail
Ranunculus bulbosus L.	St. Anthony's turnip
Collomia tinctoria Kellogg	staining collomia
Botrychium pedunculosum W.H. Wagner	stalked moonwort
Plagiobothrys stipitatus (Greene) I.M. Johnst.	stalked popcornflower
Purshia stansburiana (Torr.) Henrickson	Stansbury Cliffrose
Lemna trisulca L.	Star Duckweed
Erigeron salishii G.W. Douglas & Packer	Star Peak Fleabane
Carex echinata Murray	Star Sedge
Maianthemum stellatum (L.) Link	Starry False Lily of the Valley
Malacothrix stebbinsii W.S. Davis & P.H. Raven	Stebbins' desertdandelion
Lupinus caespitosus Nutt.	Stemless Dwarf Lupine
Collinsia rattanii A. Gray	sticky blue eyed Mary
Ribes viscosissimum Pursh	sticky currant
Castilleja viscidula A. Gray	Sticky Indian Paintbrush
Arnica ovata Greene	Sticky Leaf Arnica
Cerastium glomeratum Thuill.	Sticky Mouse-Ear Chickweed
Phacelia glandulifera Piper	sticky phacelia
Phacelia lenta Piper	sticky phacelia
Phlox viscida E.E. Nelson	sticky phlox
Polemonium viscosum Nutt.	Sticky Polemonium
Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey.	sticky purple geranium
Senecio viscosus L.	sticky ragwort
Penstemon glandulosus Douglas	Stickystem Penstemon
Galium aparine L.	stickywilly
Lycopodium annotinum L.	Stiff Clubmoss
Lathyrus rigidus T.G. White	Stiff Pea
Castilleja lutescens (Greenm.) Rydb.	stiff yellow Indian paintbrush
Ribes bracteosum Douglas ex Hook.	stink currant
Eragrostis cilianensis (All.) Vign. ex Janchen	stinkgrass
Anthemis cotula L.	stinking chamomile
Ranunculus orthorhynchus Hook.	straightbeak buttercup
Juncus orthophyllus Coville	straightleaf rush
Cyperus strigosus L.	Straw-Colored Flatsedge	✓
Trifolium fragiferum L.	strawberry clover
Saxifragopsis fragarioides (Greene) Small	Strawberry Saxifrage
Physalis grisea (Waterf.) M. Martínez	Strawberry-Tomato
Rubus pedatus Sm.	strawberryleaf raspberry
Epipactis gigantea Douglas ex Hook.	stream orchid
Claytonia parviflora Douglas ex Hook.	streambank springbeauty
Iliamna rivularis (Douglas ex Hook.) Greene	Streambank Wild Hollyhock
Erigeron glabellus Nutt.	streamside fleabane
Sisyrinchium montanum Greene	strict blue-eyed grass
Myosotis stricta Link ex Roem. & Schult.	strict forget-me-not
Eurybia merita (A. Nelson) G.L. Nesom	subalpine aster
Abies lasiocarpa (Hook.) Nutt.	Subalpine Fir
Larix lyallii Parl.	subalpine larch
Calochortus subalpinus Piper	Subalpine Mariposa Lily
Allotropa virgata Torr. & A. Gray ex A. Gray	sugarstick
Oxalis suksdorfii Trel.	Suksdorf Woodsorrel
Bromus suksdorfii Vasey	Suksdorf's brome
Ranunculus suksdorfii A. Gray	Suksdorf's buttercup
Lomatium suksdorfii (S. Watson) J.M. Coult. & Rose	Suksdorf's Desertparsley
Crataegus gaylussacia A.Heller	Suksdorf's Hawthorn
Castilleja suksdorfii A. Gray	Suksdorf's Indian Paintbrush
Lupinus suksdorfii B.L. Rob.	Suksdorf's lupine
Mimulus suksdorfii A. Gray	Suksdorf's monkeyflower
Silene suksdorfii B.L. Rob.	Suksdorf's silene
Eleocharis suksdorfiana P. Beauv.	Suksdorf's spikerush
Potentilla recta L.	sulphur cinquefoil
Lupinus sulphureus Douglas ex Hook.	sulphur lupine
Penstemon attenuatus Douglas ex Lindl.	Sulphur Penstemon
Eriogonum umbellatum Torr.	sulphur-flower buckwheat
Adonis aestivalis L.	summer pheasant's eye
Wyethia helianthoides Nutt.	Sunflower Mule-Ears
Erigeron elatus (Hook.) Greene	Swamp Boreal-Daisy
Gentiana douglasiana Bong.	swamp gentian
Allium madidum S. Watson	swamp onion
Persicaria hydropiperoides (Michx.) Small	Swamp Smartweed
Schoenoplectus subterminalis (Torr.) Soják	swaying bulrush
Achlys triphylla (Sm.) DC.	Sweet After Death
Lobularia maritima (L.) Desv.	sweet alyssum
Foeniculum vulgare Mill.	sweet fennel
Artemisia annua L.	sweet sagewort
Anthoxanthum odoratum L.	Sweet Vernalgrass
Viola odorata L.	sweet violet
Lonicera caerulea L.	Sweetberry Honeysuckle
Rosa rubiginosa L.	sweetbriar rose
Osmorhiza berteroi DC.	sweetcicely
Lathyrus odoratus L.	sweetpea
Galium odoratum (L.) Scop.	sweetscented bedstraw
Lomatium serpentinum (M.E. Jones) Mathias	Sweetscented Biscuitroot
Dianthus barbatus L.	sweetwilliam
Panicum virgatum L.	Switchgrass
Utricularia inflata Walter	Swollen Bladderwort
Juncus ensifolius Wikstr.	Swordleaf Rush
Acer pseudoplatanus L.	Sycamore Maple
Zygophyllum fabago L.	Syrian beancaper
Euclidium syriacum (L.) W.T. Aiton	Syrian mustard
Pyrrocoma hirta (A. Gray) Greene	tacky goldenweed
Calamagrostis tacomensis K.L.Marr & Hebda	Tacoma reedgrass
Carex tahoensis Smiley	Tahoe sedge
Lupinus caudatus Kellogg	tailcup lupine
Synthyris missurica (Raf.) Pennell	tailed kittentails
Heuchera chlorantha Piper	Tall Alumroot
Epilobium brachycarpum C. Presl	Tall Annual Willowherb
Lactuca biennis (Moench) Fernald	Tall Blue Lettuce
Mertensia paniculata (Aiton) G. Don	Tall Bluebells
Actaea elata (Nutt.) Prantl	tall bugbane
Ranunculus acris L.	tall buttercup
Eriophorum angustifolium Honck.	tall cottongrass
Draba praealta Greene	tall draba
Lolium arundinaceum (Schreb.) Darbysh.	Tall Fescue
Cyperus eragrostis Lam.	tall flatsedge
Mertensia ciliata (James ex Torr.) G. Don	tall fringed bluebells
Senecio hydrophiloides Rydb.	tall groundsel
Pilosella piloselloides (Vill.) Soják	Tall Hawkweed
Ipomoea purpurea (L.) Roth	tall morning-glory

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