Home » Search: All Plants Native in Columbia Plateau

1230 Plants Found

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Ordered by scientific name.

Scientific Name	Common Name	†	Map‡
Festuca washingtonica Alexeev	Washington fescue
Floerkea proserpinacoides Willd.	false mermaidweed
Fragaria vesca L.	woodland strawberry
Fragaria virginiana Duchesne	Virginia Strawberry
Frangula purshiana (DC.) A. Gray	Cascara buckthorn
Frasera albicaulis Douglas ex Griseb.	whitestem frasera
Frasera fastigiata (Pursh) A. Heller	clustered green gentian
Fritillaria affinis (Schult.) Sealy	checker lily
Fritillaria pudica (Pursh) Spreng.	yellow fritillary
Gaillardia aristata Pursh	blanketflower
Galium aparine L.	stickywilly
Galium bifolium S. Watson	twinleaf bedstraw
Galium boreale L.	northern bedstraw
Galium mexicanum Kunth	Mexican bedstraw
Galium multiflorum Kellogg	shrubby bedstraw
Galium serpenticum Dempster	Intermountain bedstraw
Galium trifidum L.	threepetal bedstraw
Galium triflorum Michx.	fragrant bedstraw
Gayophytum decipiens F.H. Lewis & Szweykowski	deceptive groundsmoke
Gayophytum diffusum Torr. & A. Gray	Spreading Groundsmoke
Gayophytum humile Juss.	dwarf groundsmoke
Gayophytum racemosum Torr. & A. Gray	blackfoot groundsmoke
Gayophytum ramosissimum Torr. & A. Gray	pinyon groundsmoke
Gentiana affinis Griseb.	pleated gentian
Geranium bicknellii Britton	Bicknell's cranesbill
Geranium carolinianum L.	Carolina geranium
Geranium oreganum Howell	Oregon geranium
Geranium richardsonii Fisch. & Trautv.	Richardson's geranium
Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey.	sticky purple geranium
Geum aleppicum Jacq.	Yellow Avens
Geum macrophyllum Willd.	largeleaf avens
Geum triflorum Pursh	Old Man's Whiskers
Gilia capitata Sims	bluehead gilia
Gilia inconspicua (Sm.) Sweet	shy gilia
Gilia modocensis Eastw.	Modoc gilia
Gilia sinuata Douglas ex Benth.	Rosy Gilia
Githopsis specularioides Nutt.	common bluecup
Glossopetalon spinescens A. Gray	spiny greasebush
Glyceria borealis (Nash) Batchelder	small floating mannagrass
Glyceria grandis S. Watson	American Mannagrass
Glyceria striata (Lam.) Hitchc.	fowl mannagrass
Glycyrrhiza lepidota Pursh	American Licorice
Gnaphalium palustre Nutt.	western marsh cudweed
Goodyera oblongifolia Raf.	western rattlesnake plantain
Graphephorum canescens (Buckley) Röser & Tkach	Tall Trisetum
Gratiola ebracteata Benth. ex A. DC.	bractless hedgehyssop
Gratiola neglecta Torr.	clammy hedgehyssop
Grayia spinosa (Hook.) Moq.	spiny hopsage
Greeneocharis circumscissa (Hook. & Arn.) Rydb.	Cushion Cryptantha
Grindelia nana Nutt.	Idaho gumweed
Grindelia squarrosa (Pursh) Dunal	Curlycup Gumweed
Gutierrezia sarothrae (Pursh) Britton & Rusby	broom snakeweed
Gymnocarpium dryopteris (L.) Newman	western oakfern
Hackelia ciliata (Douglas ex Lehm.) I.M. Johnst.	Okanogan stickseed
Hackelia cinerea (Piper) I.M. Johnst.	gray stickseed
Hackelia cusickii (Piper) Brand	Cusick's stickseed
Hackelia diffusa (Lehm.) I.M. Johnst.	spreading stickseed
Hackelia floribunda (Lehm.) I.M. Johnst.	manyflower stickseed
Hackelia hispida (A. Gray) I.M. Johnst.	showy stickseed
Hackelia micrantha (Eastw.) J.L. Gentry	Jessica sticktight
Helenium autumnale L.	common sneezeweed
Helianthella uniflora (Nutt.) Torr. & A. Gray	oneflower helianthella
Helianthus annuus L.	Common Sunflower
Helianthus cusickii A. Gray	Cusick's sunflower
Heliotropium curassavicum L.	salt heliotrope
Hemionitis gracillima (D.C.Eaton)	Lace Lipfern
Heracleum maximum W. Bartram	Common Cowparsnip
Hesperochiron californicus (Benth.) S. Watson	California hesperochiron
Hesperochiron pumilus (Douglas ex Griseb.) Porter	dwarf hesperochiron
Hesperostipa comata (Trin. & Rupr.) Barkworth	Needle-and-Thread Grass
Heterocodon rariflorum Nutt.	rareflower heterocodon
Heterotheca barbata (Rydb.) Semple	Spokane false goldenaster
Heterotheca villosa (Pursh) Shinners	hairy false goldenaster
Heuchera chlorantha Piper	Tall Alumroot
Heuchera cylindrica Douglas ex Hook.	roundleaf alumroot
Heuchera grossulariifolia Rydb.	gooseberryleaf alumroot
Heuchera micrantha Douglas ex Lindl.	crevice alumroot
Hieracium albiflorum Hook.	white hawkweed
Hieracium scouleri Hook.	Scouler's Woollyweed
Hieracium triste Willd. ex Spreng.	woolly hawkweed
Hieracium umbellatum L.	Canada Hawkweed
Hierochloe hirta (Schrank) Borbás	Northern Sweetgrass
Hippuris vulgaris L.	common mare's-tail
Holodiscus discolor (Pursh) Maxim.	oceanspray
Hordeum brachyantherum Nevski	meadow barley
Hordeum depressum (Scribn. & J.G. Sm.) Rydb.	dwarf barley
Hordeum jubatum L.	Foxtail Barley
Horkelia fusca Lindl.	Pinewoods Horkelia
Hornungia procumbens (L.) Hayek	prostrate hutchinsia
Hosackia pinnata (Hook.) Abrams	Meadow Bird's-Foot Trefoil
Hydrophyllum capitatum Douglas ex Benth.	Ballhead Waterleaf
Hydrophyllum fendleri (A. Gray) A. Heller	Fendler's waterleaf
Hymenopappus filifolius Hook.	Fineleaf Hymenopappus
Hypericum anagalloides Cham. & Schltdl.	tinker's penny
Hypericum majus (A. Gray) Britton	large St. Johnswort
Hypericum scouleri Hook.	Scouler's St. Johnswort
Idahoa scapigera (Hook.) A. Nelson & J.F. Macbr.	oldstem idahoa
Iliamna longisepala (Torr.) Wiggins	longsepal wild hollyhock
Iliamna rivularis (Douglas ex Hook.) Greene	Streambank Wild Hollyhock
Impatiens aurella Rydb.	paleyellow touch-me-not
Ipomopsis aggregata (Pursh) V.E. Grant	scarlet gilia
Iris missouriensis Nutt.	Rocky Mountain Iris
Isoetes howellii Engelm.	Howell's quillwort
Isoetes nuttallii A. Braun ex Engelm.	Nuttall's Quillwort
Iva axillaris Pursh	povertyweed
Juncus arcticus Willd.	arctic rush
Juncus articulatus L.	jointleaf rush
Juncus bufonius L.	toad rush
Juncus confusus Coville	Colorado rush
Juncus covillei Piper	Coville's rush
Juncus drummondii E. Mey.	Drummond's rush
Juncus dudleyi Wiegand	Dudley's rush
Juncus ensifolius Wikstr.	Swordleaf Rush
Juncus filiformis L.	thread rush
Juncus howellii F.J. Herm.	Howell's rush
Juncus interior Wiegand	inland rush
Juncus longistylis Torr.	longstyle rush
Juncus mertensianus Bong.	Mertens' rush
Juncus mexicanus Willd. ex Schult. & Schult. f.	Mexican rush
Juncus nevadensis S. Watson	Sierra Rush
Juncus orthophyllus Coville	straightleaf rush
Juncus parryi Engelm.	Parry's rush
Juncus regelii Buchenau	Regel's rush
Juncus saximontanus A. Nelson	Rocky Mountain rush
Juncus tenuis Willd.	poverty rush
Juncus tiehmii Ertter	Nevada rush
Juncus torreyi Coville	Torrey's rush
Juncus trilocularis Zika	foothill rush
Juncus uncialis Greene	twelfth rush
Juniperus communis L.	Common Juniper
Juniperus occidentalis Hook.	Western Juniper
Juniperus scopulorum Sarg.	Rocky Mountain Juniper
Koeleria macrantha (Ledeb.) Schult.	Prairie Junegrass
Krascheninnikovia lanata (Pursh) A. Meeuse & Smit	Winterfat
Lactuca biennis (Moench) Fernald	Tall Blue Lettuce
Ladeania lanceolata (Pursh) Reveal & A.N.Egan	Lemon Scurfpea
Lagophylla ramosissima Nutt.	branched lagophylla
Larix occidentalis Nutt.	Western Larch
Lathrocasis tenerrima (A. Gray) L.A. Johnson	delicate gilia
Lathyrus lanszwertii Kellogg	Nevada pea
Lathyrus nevadensis S. Watson	Sierra pea
Lathyrus pauciflorus Fernald	fewflower pea
Layia glandulosa (Hook.) Hook. & Arn.	Whitedaisy Tidytips
Lemna minor L.	Common Duckweed
Lemna trisulca L.	Star Duckweed
Lemna turionifera Landolt	turion duckweed
Lepidium densiflorum Schrad.	Common Pepperweed
Lepidium dictyotum A. Gray	Alkali Pepperweed
Lepidium ramosissimum A. Nelson	manybranched pepperweed
Lepidium virginicum L.	Virginia pepperweed
Leptosiphon harknessii (Curran) J.M. Porter & L.A. Johnson	Harkness' flaxflower
Leptosiphon liniflorus (Benth.) J.M. Porter & L.A. Johnson	Narrowflower Flaxflower
Leptosiphon nuttallii (A. Gray) J.M. Porter & L.A. Johnson	Nuttall's Linanthus
Leptosiphon septentrionalis (H. Mason) J.M. Porter & L.A. Johnson	northern linanthus
Lewisia nevadensis (A. Gray) B.L. Rob.	Nevada lewisia
Lewisia pygmaea (A. Gray) B.L. Rob.	alpine lewisia
Lewisia rediviva Pursh	bitter root
Lewisia triphylla (S. Watson) B.L. Rob.	threeleaf lewisia
Leymus cinereus (Scribn. & Merr.) Á. Löve	Basin Wildrye
Leymus flavescens (Scribn. & J.G. Sm.) Pilg.	yellow wildrye
Leymus triticoides (Buckley) Pilg.	Beardless Wildrye
Ligusticum canbyi (J.M. Coult. & Rose) J.M. Coult. & Rose	Canby's licorice-root
Ligusticum grayi J.M. Coult. & Rose	Gray's licorice-root
Lilaeopsis occidentalis J.M. Coult. & Rose	western grasswort
Limosella acaulis Sessé & Moc.	Owyhee mudwort
Limosella aquatica L.	Water Mudwort
Linanthus pungens (Torr.) J.M. Porter & L.A. Johnson	granite prickly phlox
Lindernia dubia (L.) Pennell	yellowseed false pimpernel
Linnaea borealis L.	twinflower
Linum lewisii Pursh	Lewis flax
Linum micranthum A.Gray	Smallflower Dwarf-flax
Lipocarpha aristulata (Coville) G. Tucker	awned halfchaff sedge
Lipocarpha micrantha (Vahl) G. Tucker	smallflower halfchaff sedge
Lithophragma glabrum Nutt.	bulbous woodland-star
Lithophragma parviflorum (Hook.) Nutt. ex Torr. & A. Gray	smallflower woodland-star
Lithophragma tenellum Nutt.	Slender Woodland-Star
Lithospermum ruderale Douglas ex Lehm.	western stoneseed
Loeflingia squarrosa Nutt.	spreading pygmyleaf
Lomatium ambiguum (Nutt.) J.M. Coult. & Rose	Wyeth biscuitroot
Lomatium bicolor (S. Watson) J.M. Coult. & Rose	Wasatch desertparsley
Lomatium canbyi (J.M. Coult. & Rose) J.M. Coult. & Rose	Canby's Biscuitroot
Lomatium columbianum Mathias & Constance	Purple Leptotaenia
Lomatium cous (S. Watson) J.M. Coult. & Rose	Cous Biscuitroot
Lomatium dissectum (Nutt.) Mathias & Constance	Fernleaf Biscuitroot
Lomatium donnellii (J.M. Coult. & Rose) J.M. Coult. & Rose	Donnell's Biscuitroot
Lomatium farinosum (Hook.) J.M. Coult. & Rose	Northern Biscuitroot
Lomatium geyeri (S. Watson) J.M. Coult. & Rose	Geyer's biscuitroot
Lomatium gormanii (Howell) J.M. Coult. & Rose	Gorman's Biscuitroot
Lomatium grayi (J.M. Coult. & Rose) J.M. Coult. & Rose	Gray's biscuitroot
Lomatium laevigatum (Nutt.) J.M. Coult. & Rose	Slickrock Biscuitroot
Lomatium macrocarpum (Nutt. ex Torr. & A. Gray) J.M. Coult. & Rose	bigseed biscuitroot
Lomatium minus (Rose ex Howell) Mathias & Constance	Day Valley Desertparsley
Lomatium nudicaule (Pursh) J.M. Coult. & Rose	barestem biscuitroot
Lomatium piperi J.M. Coult. & Rose	Indian Biscuitroot
Lomatium salmoniflorum (J.M. Coult. & Rose) Mathias & Constance	Salmonflower Biscuitroot
Lomatium serpentinum (M.E. Jones) Mathias	Sweetscented Biscuitroot
Lomatium simplex (Nutt.) J.F. Macbr.	Great Basin Desertparsley
Lomatium triternatum (Pursh) J.M. Coult. & Rose	nineleaf biscuitroot
Lomatium tuberosum Hoover	Hoover's Desertparsley
Lomatium vaginatum J.M. Coult. & Rose	Broadsheath Desertparsley
Lomatium watsonii (J.M. Coult. & Rose) J.M. Coult. & Rose	Watson's Desertparsley
Lonicera caerulea L.	Sweetberry Honeysuckle
Lonicera ciliosa (Pursh) Poir. ex DC.	Orange Honeysuckle
Lonicera involucrata (Richardson) Banks ex Spreng.	twinberry honeysuckle
Lonicera utahensis S. Watson	Utah honeysuckle
Ludwigia palustris (L.) Elliott	marsh seedbox
Lupinus albicaulis Douglas	sicklekeel lupine
Lupinus amphibius Suksd.	amphibious lupine
Lupinus arbustus Douglas ex Lindl.	longspur lupine
Lupinus argenteus Pursh	Silvery Lupine
Lupinus aridus Douglas	desert lupine
Lupinus bingenensis Suksd.	Bingen Lupine
Lupinus burkei S. Watson	largeleaf lupine
Lupinus caudatus Kellogg	tailcup lupine
Lupinus cusickii S. Watson	Cusick's lupine
Lupinus garfieldensis C.P. Sm.	Garfield lupine
Lupinus latifolius Lindl. ex J. Agardh	broadleaf lupine
Lupinus leucophyllus Douglas ex Lindl.	velvet lupine
Lupinus lutescens C.P. Sm.	light yellow lupine
Lupinus minimus Douglas ex Hook.	Kettle Falls lupine
Lupinus mollis A. Heller	soft lupine
Lupinus ornatus Douglas ex Lindl.	ornate lupine
Lupinus polycarpus Greene	smallflower lupine
Lupinus polyphyllus Lindl.	Bigleaf Lupine
Lupinus prunophilus M.E. Jones	hairy bigleaf lupine
Lupinus pusillus Pursh	rusty lupine
Lupinus sabinianus Douglas ex Lindl.	Sabin's lupine
Lupinus saxosus Howell	rock lupine
Lupinus sellulus Kellogg	Donner Lake lupine
Lupinus sericeus Pursh	silky lupine
Lupinus sulphureus Douglas ex Hook.	sulphur lupine
Lupinus wyethii S. Watson	Wyeth's lupine
Luzula comosa E. Mey.	Pacific woodrush
Luzula multiflora (Ehrh.) Lej.	common woodrush
Luzula parviflora (Ehrh.) Desv.	Smallflowered Woodrush
Lycopodium lagopus (Laest. ex Hartm.) Zinserl. ex Kuzen	one-cone clubmoss
Lycopus americanus Muhl. ex W.P.C. Barton	American Water Horehound
Lycopus asper Greene	Rough Bugleweed
Lygodesmia juncea (Pursh) D. Don ex Hook.	rush skeletonplant
Lysimachia ciliata L.	fringed loosestrife
Lysimachia latifolia (Hook.) Cholewa	Pacific Starflower
Lysimachia maritima (L.) Galasso, Banfi & Soldano	Sea Milkwort
Lysimachia thyrsiflora L.	tufted loosestrife
Madia citriodora Greene	lemonscented madia
Madia exigua (Sm.) A. Gray	small tarweed
Madia glomerata Hook.	mountain tarweed
Madia gracilis (Sm.) D.D. Keck	Grassy Tarweed
Madia sativa Molina	coast tarweed
Mahonia nervosa (Pursh) Nutt.	Cascade barberry
Mahonia repens (Lindl.) G. Don	creeping barberry
Maianthemum racemosum (L.) Link	Feathery False Lily of the Valley
Maianthemum stellatum (L.) Link	Starry False Lily of the Valley
Malvella leprosa (Ortega) Krapov.	alkali mallow
Marah oreganus (Torr. ex S. Watson) Howell	coastal manroot
Marsilea oligospora Goodding	Pacific waterclover
Marsilea vestita Hook. & Grev.	hairy waterclover
Matricaria discoidea DC.	disc mayweed
Melica bulbosa Geyer ex Porter & J.M. Coult.	oniongrass
Melica fugax Bol.	Little Oniongrass
Melica spectabilis Scribn.	purple oniongrass
Melica subulata (Griseb.) Scribn.	Alaska oniongrass
Mentha arvensis L.	Wild Mint
Mentzelia albicaulis (Hook.) Torr. & A. Gray	whitestem blazingstar
Mentzelia dispersa S. Watson	bushy blazingstar
Mentzelia laevicaulis (Hook.) Torr. & A. Gray	Smoothstem Blazingstar
Mentzelia montana (Davidson) Davidson	variegated-bract blazingstar
Menyanthes trifoliata L.	Buckbean
Menziesia ferruginea Sm.	rusty menziesia
Mertensia ciliata (James ex Torr.) G. Don	tall fringed bluebells
Mertensia longiflora Greene	small bluebells
Mertensia oblongifolia (Nutt.) G. Don	oblongleaf bluebells
Mertensia paniculata (Aiton) G. Don	Tall Bluebells
Mertensia platyphylla A. Heller	broadleaf bluebells
Micranthes integrifolia (Hook.) Small	Wholeleaf Saxifrage
Micranthes odontoloma (Piper) A.Heller	Brook Saxifrage
Micranthes oregana (Howell) Small	Oregon Saxifrage
Microseris nutans (Hook.) Sch. Bip.	nodding microseris
Microsteris gracilis (Hook.) Greene	slender phlox
Mimetanthe pilosa (Benth.) Greene	false monkeyflower
Mimulus breviflorus Piper	shortflower monkeyflower
Mimulus breweri (Greene) Coville	Brewer's Monkeyflower
Mimulus evanescens R.J. Meinke	disappearing monkeyflower
Mimulus floribundus Lindl.	manyflowered monkeyflower
Mimulus guttatus DC.	Seep Monkeyflower
Mimulus jungermannioides Suksd.	liverwort monkeyflower
Mimulus lewisii Pursh	purple monkeyflower
Mimulus moschatus Douglas ex Lindl.	muskflower
Mimulus nanus Hook. & Arn.	dwarf purple monkeyflower
Mimulus pulsiferae A. Gray	candelabrum monkeyflower
Mimulus suksdorfii A. Gray	Suksdorf's monkeyflower
Mimulus tilingii Regel	Tiling's Monkeyflower
Minuartia nuttallii (Pax) Briq.	Nuttall's sandwort
Minuartia pusilla (S. Watson) Mattf.	annual sandwort
Mitella stauropetala Piper	smallflower miterwort
Moehringia lateriflora (L.) Fenzl	Bluntleaf Sandwort
Moehringia macrophylla (Hook.) Fenzl	Largeleaf Sandwort
Monardella odoratissima Benth.	mountain monardella
Monotropa uniflora L.	Ghost Pipe
Montia chamissoi (Ledeb. ex Spreng.) Greene	water minerslettuce
Montia dichotoma (Nutt.) Howell	dwarf minerslettuce
Montia fontana L.	Annual Water Minerslettuce
Montia linearis (Douglas ex Hook.) Greene	narrowleaf minerslettuce
Montia parvifolia (Moc. ex DC.) Greene	littleleaf minerslettuce
Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi	Scratchgrass
Muhlenbergia filiformis (Thurb. ex S. Watson) Rydb.	pullup muhly
Muhlenbergia mexicana (L.) Trin.	Mexican Muhly
Muhlenbergia racemosa "(Michx.) Britton	marsh muhly
Muhlenbergia richardsonis (Trin.) Rydb.	mat muhly
Myosotis laxa Lehm.	Bay Forget-me-not
Myosotis verna Nutt.	spring forget-me-not
Myosurus apetalus C. Gay	bristly mousetail
Myosurus minimus L.	Tiny Mousetail
Myosurus sessilis S. Watson	vernal pool mousetail
Myriophyllum quitense Kunth	Andean watermilfoil
Myriophyllum sibiricum Kom.	shortspike watermilfoil
Myriophyllum verticillatum L.	whorl-leaf watermilfoil
Nama densum Lemmon	leafy nama
Navarretia breweri (A. Gray) Greene	Brewer's navarretia
Navarretia divaricata (Torr. ex A. Gray) Greene	divaricate navarretia
Navarretia intertexta (Benth.) Hook.	Needleleaf Navarretia
Navarretia leucocephala Benth.	whitehead navarretia
Navarretia sinistra (M.E. Jones) L.A. Johnson	Alva Day's pincushionplant
Navarretia squarrosa (Eschsch.) Hook. & Arn.	skunkbush
Nemophila breviflora A. Gray	basin nemophila
Nemophila kirtleyi L.F. Hend.	Kirtley's nemophila
Neottia convallarioides (Sw.) Rich.	Broadlipped Twayblade
Nestotus stenophyllus (A. Gray) R.P. Roberts, Urbatsch & Neubig	Narrowleaf Mock Goldenweed
Nicotiana attenuata Torr. ex S. Watson	Coyote Tobacco
Noccaea fendleri (A. Gray) Holub	Fendler's Pennycress
Nothocalais troximoides (A. Gray) Greene	sagebrush false dandelion
Nuphar polysepala Engelm.	Great Yellow Pond-Lily
Oenothera caespitosa Nutt.	Tufted Evening Primrose
Oenothera curtiflora W.L.Wagner & Hoch	Velvetweed
Oenothera elata Kunth	Hooker's evening primrose
Oenothera pallida Lindl.	pale evening primrose
Oenothera villosa Thunb.	Hairy Evening Primrose
Olsynium douglasii (A. Dietr.) E.P. Bicknell	Douglas' grasswidow
Ophioglossum pusillum Raf.	northern adderstongue
Oplopanax horridus (Sm.) Miq.	Devilsclub
Opuntia fragilis (Nutt.) Haw.	brittle pricklypear
Orobanche californica Cham. & Schltdl.	California broomrape
Orobanche corymbosa (Rydb.) Ferris	flat-top broomrape
Orobanche fasciculata Nutt.	clustered broomrape
Orobanche ludoviciana Nutt.	Louisiana Broomrape
Orobanche uniflora L.	oneflowered broomrape
Orogenia linearifolia S. Watson	Great Basin Indian potato
Orthilia secunda (L.) House	sidebells wintergreen
Orthocarpus barbatus Cotton	Grand Coulee owl's-clover
Orthocarpus luteus Nutt.	yellow owl's-clover
Orthocarpus tenuifolius (Pursh) Benth.	thinleaved owl's-clover
Osmorhiza berteroi DC.	sweetcicely
Osmorhiza depauperata Phil.	bluntseed sweetroot
Osmorhiza occidentalis (Nutt. ex Torr. & A. Gray) Torr.	western sweetroot
Oxybasis rubra (L.) S.Fuentes, Uotila & Borsch	Red Goosefoot
Oxytropis campestris (L.) DC.	Field Locoweed
Packera cana (Hook.) W.A. Weber & Á. Löve	woolly groundsel
Packera paupercula (Michx.) Á. Löve & D. Löve	Balsam Groundsel
Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve	falsegold groundsel
Packera streptanthifolia (Greene) W.A. Weber & Á. Löve	Rocky Mountain Groundsel
Paeonia brownii Douglas ex Hook.	Brown's peony
Panicum capillare L.	witchgrass
Parietaria pensylvanica Muhl. ex Willd.	Pennsylvania Pellitory
Pascopyrum smithii (Rydb.) Á. Löve	Western Wheatgrass
Paspalum distichum L.	knotgrass
Paxistima myrsinites (Pursh) Raf.	Oregon boxleaf
Pectocarya penicillata (Hook. & Arn.) A. DC.	sleeping combseed
Pectocarya setosa A. Gray	moth combseed
Pedicularis bracteosa Benth.	bracted lousewort
Pedicularis contorta Benth.	coiled lousewort
Pedicularis groenlandica Retz.	Elephanthead Lousewort
Pediocactus nigrispinus (Hochstätter) Hochstätter	snowball cactus
Pellaea glabella Mett. ex Kuhn	smooth cliffbrake
Penstemon acuminatus Douglas ex Lindl.	Sharpleaf Penstemon
Penstemon attenuatus Douglas ex Lindl.	Sulphur Penstemon
Penstemon confertus Douglas ex Lindl.	Yellow Penstemon
Penstemon deustus Douglas ex Lindl.	Scabland Penstemon
Penstemon diphyllus Rydb.	Twoleaf Beardtongue
Penstemon eriantherus Pursh	Fuzzytongue Penstemon
Penstemon fruticosus (Pursh) Greene	bush penstemon
Penstemon gairdneri Hook.	Gairdner's Beardtongue
Penstemon glandulosus Douglas	Stickystem Penstemon
Penstemon humilis Nutt. ex A. Gray	Low Beardtongue
Penstemon procerus Douglas ex Graham	littleflower penstemon
Penstemon pruinosus Douglas ex Lindl.	Chelan beardtongue
Penstemon richardsonii Douglas ex Lindl.	cutleaf beardtongue
Penstemon rydbergii A. Nelson	Rydberg's Penstemon
Penstemon serrulatus Menzies ex Sm.	serrulate penstemon
Penstemon speciosus Douglas ex Lindl.	Royal Penstemon
Penstemon triphyllus Douglas ex Lindl.	Riggin's Penstemon
Penstemon venustus Douglas ex Lindl.	Venus Penstemon
Penstemon wilcoxii Rydb.	Wilcox's Penstemon
Pentagramma triangularis "(Kaulf.) Yatsk.	goldback fern
Perideridia gairdneri (Hook. & Arn.) Mathias	Gardner's yampah
Persicaria amphibia (L.) Delarbre	Water Knotweed
Persicaria lapathifolia (L.) Delarbre	Pale Smartweed
Petasites frigidus (L.) Fr.	arctic sweet coltsfoot
Petrophytum cinerascens (Piper) Rydb.	halfshrub rockmat
Phacelia glandulifera Piper	sticky phacelia
Phacelia hastata Douglas ex Lehm.	Silverleaf Phacelia
Phacelia heterophylla Pursh	varileaf phacelia
Phacelia humilis Torr. & A. Gray	low phacelia
Phacelia lenta Piper	sticky phacelia
Phacelia leptosepala Rydb.	narrowsepal phacelia
Phacelia linearis (Pursh) Holz.	threadleaf phacelia
Phacelia ramosissima Douglas ex Lehm.	branching phacelia
Phacelia tetramera J.T. Howell	fourpart phacelia
Phalaris arundinacea L.	Reed Canary Grass
Phemeranthus spinescens (Torr.) Hershkovitz	spiny fameflower
Philadelphus lewisii Pursh	Lewis' mock orange
Phleum alpinum L.	Alpine Timothy
Phlox aculeata A. Nelson	sagebrush phlox
Phlox colubrina Wherry & Constance	Snake River phlox
Phlox diffusa Benth.	spreading phlox
Phlox longifolia Nutt.	longleaf phlox
Phlox speciosa Pursh	showy phlox
Phlox viscida E.E. Nelson	sticky phlox
Phoenicaulis cheiranthoides Nutt.	wallflower phoenicaulis
Phragmites americanus (Saltonst., P.M.Peterson & Soreng) A.Haines	American Common Reed
Physaria douglasii subsp. tuplashensis (Rollins, K.A.Beck & Caplow) O'Kane & Al-Shehbaz	White Bluffs Bladderpod
Physocarpus capitatus (Pursh) Kuntze	Pacific ninebark
Physocarpus malvaceus (Greene) Kuntze	mallow ninebark
Picea engelmannii Parry ex Engelm.	Engelmann Spruce
Pilularia americana A. Braun	American pillwort
Pinus contorta Douglas ex Loudon	Lodgepole Pine
Pinus monticola Douglas ex D. Don	Western White Pine
Pinus ponderosa Lawson & C. Lawson	Ponderosa Pine
Piperia unalascensis (Spreng.) Rydb.	slender-spire orchid
Plagiobothrys leptocladus (Greene) I.M. Johnst.	finebranched popcornflower
Plagiobothrys mollis (A. Gray) I.M. Johnst.	soft popcornflower
Plagiobothrys nothofulvus (A. Gray) A. Gray	rusty popcornflower
Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst.	Scouler's popcornflower
Plagiobothrys tenellus (Nutt. ex Hook.) A. Gray	Pacific popcornflower
Plantago patagonica Jacq.	Woolly Plantain
Platanthera stricta Lindl.	slender bog orchid
Plectritis macrocera Torr. & A. Gray	Longhorn Plectritis
Poa bolanderi Vasey	Bolander's bluegrass
Poa fendleriana (Steud.) Vasey	muttongrass
Poa glauca Vahl	Glaucous Bluegrass
Poa leibergii Scribn.	Leiberg's bluegrass
Poa leptocoma Trin.	marsh bluegrass
Poa palustris L.	Fowl Bluegrass
Poa secunda J. Presl	Sandberg Bluegrass
Poa stenantha Trin.	northern bluegrass
Polemonium californicum Eastw.	moving polemonium
Polemonium micranthum Benth.	annual polemonium
Polemonium occidentale Greene	western polemonium
Polemonium pectinatum Greene	Washington Jacob's-ladder
Polemonium pulcherrimum Hook.	Jacob's-ladder
Polyctenium fremontii (S. Watson) Greene	desert combleaf
Polygonum douglasii Greene	Douglas' knotweed
Polygonum minimum S. Watson	broadleaf knotweed
Polypodium hesperium Maxon	western polypody
Polystichum munitum (Kaulf.) C. Presl	western swordfern
Populus balsamifera L.	Balsam Poplar
Populus deltoides W. Bartram ex Marshall	Eastern Cottonwood
Populus tremuloides Michx.	Quaking Aspen
Potamogeton amplifolius Tuck.	largeleaf pondweed
Potamogeton epihydrus Raf.	ribbonleaf pondweed
Potamogeton foliosus Raf.	Leafy Pondweed
Potamogeton gramineus L.	variableleaf pondweed
Potamogeton natans L.	floating pondweed
Potamogeton nodosus Poir.	longleaf pondweed
Potamogeton praelongus Wulfen	whitestem pondweed
Potamogeton pusillus L.	small pondweed
Potamogeton richardsonii (Benn.) Rydb.	Richardson's pondweed
Potamogeton zosteriformis Fernald	flatstem pondweed
Potentilla biennis Greene	biennial cinquefoil
Potentilla gracilis Douglas ex Hook.	slender cinquefoil
Potentilla norvegica L.	Norwegian cinquefoil
Prosartes hookeri Torr.	drops-of-gold
Prosartes trachycarpa S. Watson	roughfruit fairybells
Prunella vulgaris L.	Common Selfheal
Prunus emarginata (Douglas ex Hook.) D. Dietr.	bitter cherry
Prunus virginiana L.	Chokecherry
Pseudognaphalium canescens (DC.) W.A. Weber	Wright's cudweed
Pseudoroegneria spicata (Pursh) Á. Löve	Bluebunch Wheatgrass
Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartm.	tuber starwort
Pseudotsuga menziesii (Mirb.) Franco	Douglas Fir
Psilocarphus brevissimus Nutt.	short woollyheads
Psilocarphus elatior (A. Gray) A. Gray	meadow woollyheads
Psilocarphus oregonus Nutt.	Oregon woollyheads
Psilocarphus tenellus Nutt.	slender woollyheads
Pteridium aquilinum (L.) Kuhn	western brackenfern
Pterospora andromedea Nutt.	woodland pinedrops
Puccinellia lemmonii (Vasey) Scribn.	Lemmon's alkaligrass
Puccinellia nuttalliana (Schult.) Hitchc.	Nuttall's Alkaligrass
Pulsatilla occidentalis (S. Watson) Freyn	white pasqueflower
Purshia tridentata (Pursh) DC.	Antelope Bitterbrush
Pyrola asarifolia Michx.	Liverleaf Wintergreen
Pyrola picta Sm.	whiteveined wintergreen
Pyrrocoma carthamoides Hook.	largeflower goldenweed
Pyrrocoma hirta (A. Gray) Greene	tacky goldenweed
Pyrrocoma liatriformis Greene	smallhead goldenweed
Ranunculus alismifolius Geyer ex Benth.	plantainleaf buttercup
Ranunculus aquatilis L.	white water crowfoot
Ranunculus cymbalaria Pursh	Alkali Buttercup
Ranunculus flabellaris Raf.	Yellow Water Buttercup
Ranunculus flammula L.	greater creeping spearwort
Ranunculus glaberrimus Hook.	sagebrush buttercup
Ranunculus gmelinii DC.	Gmelin's buttercup

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