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3747 Plants Found

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Ordered by scientific name.

Scientific NameCommon NameMap‡
Oxalis debilis Kunthpink woodsorrel
Oxalis dillenii Jacq.Slender Yellow Woodsorrel
Oxalis oregana Nutt.redwood-sorrel
Oxalis stricta L.Common Yellow Oxalis
Oxalis suksdorfii Trel.Suksdorf Woodsorrel
Oxalis trilliifolia Hook.threeleaf woodsorrel
Oxalis violacea L.Violet Woodsorrel
Oxybasis rubra (L.) S.Fuentes, Uotila & BorschRed Goosefoot
Oxypolis occidentalis J.M. Coult. & Rosewestern cowbane
Oxyria digyna (L.) HillAlpine Mountainsorrel
Oxytropis campestris (L.) DC.Field Locoweed
Oxytropis monticola A. Grayyellowflower locoweed
Packera bolanderi (A. Gray) W.A. Weber & Á. LöveBolander's ragwort
Packera cana (Hook.) W.A. Weber & Á. Lövewoolly groundsel
Packera eurycephala (Torr. & A. Gray) W.A. Weber & Á. Lövewidehead groundsel
Packera flettii (Wiegand) W.A. Weber & Á. LöveFlett's ragwort
Packera indecora (Greene) Á. Löve & D. Löveelegant groundsel
Packera macounii (Greene) W.A. Weber & Á. LöveSiskiyou Mountain ragwort
Packera paupercula (Michx.) Á. Löve & D. LöveBalsam Groundsel
Packera pseudaurea (Rydb.) W.A. Weber & Á. Lövefalsegold groundsel
Packera streptanthifolia (Greene) W.A. Weber & Á. LöveRocky Mountain Groundsel
Packera subnuda (DC.) D.K. Trock & T.M. BarkleyBuek's groundsel
Paeonia brownii Douglas ex Hook.Brown's peony
Panicum capillare L.witchgrass
Panicum dichotomiflorum Michx.Fall Panicgrass
Panicum miliaceum L.proso millet
Panicum rigidulum Bosc ex NeesRedtop Panicgrass
Papaver dubium L.blindeyes
Papaver rhoeas L.corn poppy
Papaver somniferum L.opium poppy
Parapholis incurva (L.) C.E. HubbardCurved Sicklegrass
Parentucellia viscosa (L.) Caruelyellow glandweed
Parietaria judaica L.spreading pellitory
Parietaria officinalis L.upright pellitory
Parietaria pensylvanica Muhl. ex Willd.Pennsylvania Pellitory
Parnassia cirrata PiperSan Bernardino Grass Of Parnassus
Parnassia fimbriata K.D. KoenigFringed Grass of Parnassus
Parnassia palustris L.marsh grass of Parnassus
Parthenocissus vitacea (Knerr) Hitchc.Woodbine
Pascopyrum smithii (Rydb.) Á. LöveWestern Wheatgrass
Paspalum dilatatum Poir.dallisgrass
Paspalum distichum L.knotgrass
Pastinaca sativa L.Wild Parsnip
Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud.Princess Tree
Paxistima myrsinites (Pursh) Raf.Oregon boxleaf
Pectocarya penicillata (Hook. & Arn.) A. DC.sleeping combseed
Pectocarya pusilla (A. DC.) A. Graylittle combseed
Pectocarya setosa A. Graymoth combseed
Pedicularis attollens A. GrayLittle Elephantshead
Pedicularis bracteosa Benth.bracted lousewort
Pedicularis contorta Benth.coiled lousewort
Pedicularis densiflora Benth. ex Hook.Indian warrior
Pedicularis groenlandica Retz.Elephanthead Lousewort
Pedicularis howellii A. GrayHowell's Lousewort
Pedicularis ornithorhyncha Benth.ducksbill lousewort
Pedicularis rainierensis Pennell & WarrenMt. Rainier lousewort
Pedicularis semibarbata A. Graypinewoods lousewort
Pediocactus nigrispinus (Hochstätter) Hochstättersnowball cactus
Pellaea andromedifolia (Kaulf.) Féecoffee cliffbrake
Pellaea brachyptera (T. Moore) BakerSierra cliffbrake
Pellaea breweri D.C. EatonBrewer's cliffbrake
Pellaea glabella Mett. ex Kuhnsmooth cliffbrake
Pellaea mucronata (D.C. Eaton) D.C. Eatonbirdfoot cliffbrake
Penstemon acuminatus Douglas ex Lindl.Sharpleaf Penstemon
Penstemon anguineus Eastw.Siskiyou Beardtongue
Penstemon attenuatus Douglas ex Lindl.Sulphur Penstemon
Penstemon azureus Benth.Azure Penstemon
Penstemon barrettiae A. GrayBarrett's Beardtongue
Penstemon cardwellii HowellCardwell's Beardtongue
Penstemon cinicola D.D. KeckAsh Penstemon
Penstemon confertus Douglas ex Lindl.Yellow Penstemon
Penstemon cusickii A. GrayCusick's Beardtongue
Penstemon davidsonii GreeneDavidson's penstemon
Penstemon deustus Douglas ex Lindl.Scabland Penstemon
Penstemon eriantherus PurshFuzzytongue Penstemon
Penstemon euglaucus EnglishGlaucous Beardtongue
Penstemon filiformis (D.D. Keck) D.D. KeckThreadleaf Beardtongue
Penstemon fruticosus (Pursh) Greenebush penstemon
Penstemon gairdneri Hook.Gairdner's Beardtongue
Penstemon glandulosus DouglasStickystem Penstemon
Penstemon glaucinus PennellBlueleaf Beardtongue
Penstemon gracilentus A. GraySlender Penstemon
Penstemon heterodoxus A. GraySierra Beardtongue
Penstemon heterophyllus Lindl.Bunchleaf Penstemon
Penstemon humilis Nutt. ex A. GrayLow Beardtongue
Penstemon laetus A. GrayMountain Blue Penstemon
Penstemon neotericus D.D. KeckPlumas County Beardtongue
Penstemon newberryi A. GrayMountain Pride
Penstemon ovatus Douglas ex Hook.eggleaf beardtongue
Penstemon peckii PennellPeck's Beardtongue
Penstemon procerus Douglas ex Grahamlittleflower penstemon
Penstemon pruinosus Douglas ex Lindl.Chelan beardtongue
Penstemon purpusii BrandegeeSnow Mountain Beardtongue
Penstemon rattanii A. GrayRattan's Beardtongue
Penstemon richardsonii Douglas ex Lindl.cutleaf beardtongue
Penstemon roezlii RegelRoezl's Penstemon
Penstemon rupicola (Piper) HowellCliff Beardtongue
Penstemon rydbergii A. NelsonRydberg's Penstemon
Penstemon seorsus (A. Nelson) D.D. KeckShortlobe Penstemon
Penstemon serrulatus Menzies ex Sm.serrulate penstemon
Penstemon speciosus Douglas ex Lindl.Royal Penstemon
Penstemon subserratus PennellFinetooth Beardtongue
Pentaglottis sempervirens (L.) Tausch ex L.H. Baileyevergreen bugloss
Pentagramma triangularis "(Kaulf.) Yatsk.goldback fern
Perideridia bolanderi (A. Gray) A. Nelson & J.F. Macbr.Bolander's yampah
Perideridia erythrorhiza (Piper) T.I. Chuang & ConstanceWestern Yampah
Perideridia gairdneri (Hook. & Arn.) MathiasGardner's yampah
Perideridia howellii (J.M. Coult. & Rose) MathiasHowell's yampah
Perideridia lemmonii (J.M. Coult. & Rose) T.I. Chuang & ConstanceLemmon's yampah
Perideridia leptocarpa T.I. Chuang & ConstanceNarrowseed Yampah
Perideridia oregana (S. Watson) MathiasOregon yampah
Perideridia parishii (J.M. Coult. & Rose) A. Nelson & J.F. Macbr.Parish's yampah
Perilla frutescens (L.) BrittonBeefsteak Plant
Persicaria amphibia (L.) DelarbreWater Knotweed
Persicaria hydropiperoides (Michx.) SmallSwamp Smartweed
Persicaria lapathifolia (L.) DelarbrePale Smartweed
Persicaria punctata (Elliott) SmallDotted Smartweed
Petasites frigidus (L.) Fr.arctic sweet coltsfoot
Petasites japonicus (Siebold & Zucc.) Maxim.Japanese sweet coltsfoot
Petrorhagia dubia (Raf.) G. López & Romohairypink
Phacelia bolanderi A. GrayBolander's Phacelia
Phacelia californica Cham.California phacelia
Phacelia capitata Kruckeb.Clustered Phacelia
Phacelia cookei Constance & HeckardCooke's Phacelia
Phacelia corymbosa Jeps.serpentine phacelia
Phacelia egena (Greene ex Brand) Greene ex J.T. HowellKaweah River phacelia
Phacelia glandulifera Pipersticky phacelia
Phacelia greenei J.T. HowellScott Valley Phacelia
Phacelia hastata Douglas ex Lehm.Silverleaf Phacelia
Phacelia heterophylla Purshvarileaf phacelia
Phacelia humilis Torr. & A. Graylow phacelia
Phacelia inundata J.T. HowellPlaya Yellow Phacelia
Phacelia leibergii BrandLeiberg's Phacelia
Phacelia leonis J.T. HowellSiskiyou Phacelia
Phacelia leptosepala Rydb.narrowsepal phacelia
Phacelia linearis (Pursh) Holz.threadleaf phacelia
Phacelia lutea (Hook. & Arn.) J.T. HowellYellow Phacelia
Phacelia minutissima L.F. Hend.Small Phacelia
Phacelia mutabilis GreeneChangeable Phacelia
Phacelia nemoralis Greeneshade phacelia
Phacelia peckii J.T. HowellPeck's Phacelia
Phacelia pringlei A. GrayPringle's Phacelia
Phacelia procera A. Graytall phacelia
Phacelia ramosissima Douglas ex Lehm.branching phacelia
Phacelia rattanii A. GrayRattan's phacelia
Phacelia sericea (Graham) A. Graysilky phacelia
Phacelia tanacetifolia Benth.lacy phacelia
Phacelia thermalis GreeneHeated Phacelia
Phacelia verna HowellSpring Phacelia
Phalaris aquatica L.bulbous canarygrass
Phalaris arundinacea L.Reed Canary Grass
Phalaris brachystachys Linkshortspike canarygrass
Phalaris canariensis L.Annual Canarygrass
Phalaris minor Retz.littleseed canarygrass
Phalaris paradoxa L.hood canarygrass
Phedimus spurius (M. Bieb.) 't HartCaucasian stonecrop
Phegopteris connectilis (Michx.) Wattlong beechfern
Phemeranthus spinescens (Torr.) Hershkovitzspiny fameflower
Philadelphus californicus Benth.California mock orange
Philadelphus lewisii PurshLewis' mock orange
Phleum alpinum L.Alpine Timothy
Phleum arenarium L.Sand Timothy
Phleum paniculatum Huds.British Timothy
Phleum pratense L.Timothy
Phleum subulatum (Savi) Asch. & Graebn.Italian Timothy
Phlox aculeata A. Nelsonsagebrush phlox
Phlox adsurgens Torr. ex A. GrayNorthern Phlox
Phlox austromontana Covillemountain phlox
Phlox colubrina Wherry & ConstanceSnake River phlox
Phlox diffusa Benth.spreading phlox
Phlox hendersonii (E.E. Nelson) CronquistHenderson's phlox
Phlox hirsuta E.E. NelsonYreka Phlox
Phlox longifolia Nutt.longleaf phlox
Phlox peckii Wherry, nom. inq.Peck's Phlox
Phlox speciosa Purshshowy phlox
Phlox viscida E.E. Nelsonsticky phlox
Phoenicaulis cheiranthoides Nutt.wallflower phoenicaulis
Phoradendron bolleanum (Seem.) Eichl.Bollean mistletoe
Phoradendron juniperinum Engelm. ex A. GrayJuniper Mistletoe
Phoradendron leucarpum (Raf.) Reveal & M.C. Johnst.Oak Mistletoe
Photinia davidiana (Decne.) CardotChinese photinia
Photinia villosa (Thunb.) DC.Oriental Photinia
Phragmites americanus (Saltonst., P.M.Peterson & Soreng) A.HainesAmerican Common Reed
Phragmites australis (Cav.) Trin. ex Steud.Eurasian Common Reed
Phyla nodiflora (L.) Greeneturkey tangle fogfruit
Phyllodoce breweri (A. Gray) A. Hellerpurple mountainheath
Phyllodoce empetriformis (Sm.) D. Donpink mountainheath
Phyllodoce glanduliflora (Hook.) Covilleyellow mountainheath
Phyllospadix scouleri Hook.Scouler's surfgrass
Phyllospadix torreyi S. WatsonTorrey's surfgrass
Physalis grisea (Waterf.) M. MartínezStrawberry-Tomato
Physalis heterophylla NeesClammy Groundcherry
Physalis longifolia Nutt.Longleaf Groundcherry
Physalis pubescens L.Husk Tomato
Physalis pumila Nutt.Dwarf Groundcherry
Physalis pumila var. hispida (Waterf.) J.R.SullivanPrairie Groundcherry
Physaria alpestris Suksd.Washington Twinpod
Physocarpus capitatus (Pursh) KuntzePacific ninebark
Physostegia parviflora Nutt. ex A. GrayWestern False Dragonhead
Phytolacca americana L.American Pokeweed
Picea abies (L.) Karst.Norway Spruce
Picea breweriana S. WatsonBrewer Spruce
Picea engelmannii Parry ex Engelm.Engelmann Spruce
Picea sitchensis (Bong.) CarrièreSitka spruce
Pilosella aurantiaca (L.) F.W.Schultz & Sch.Bip.Fox-and-Cubs
Pilosella piloselloides (Vill.) SojákTall Hawkweed
Pilularia americana A. BraunAmerican pillwort
Pimpinella major (L.) Huds.hollowstem burnet saxifrage
Pimpinella saxifraga L.solidstem burnet saxifrage
Pinguicula macroceras LinkCalifornia butterwort
Pinus albicaulis Engelm.Whitebark Pine
Pinus attenuata Lemmonknobcone pine
Pinus balfouriana Balf.Foxtail Pine
Pinus contorta Douglas ex LoudonLodgepole Pine
Pinus jeffreyi Balf.Jeffrey Pine
Pinus lambertiana DouglasSugar Pine
Pinus monticola Douglas ex D. DonWestern White Pine
Pinus pinaster AitonMaritime Pine
Pinus ponderosa Lawson & C. LawsonPonderosa Pine
Pinus sabiniana Douglas ex DouglasCalifornia foothill pine
Pinus sylvestris L.Scots Pine
Piperia colemanii R. Morgan & GlicensteinColeman's piperia
Piperia elongata Rydb.denseflower rein orchid
Piperia leptopetala Rydb.narrow-petal rein orchid
Piperia transversa Suksd.royal rein orchid
Piperia unalascensis (Spreng.) Rydb.slender-spire orchid
Piptatheropsis exigua (Thurb.) Romasch., P.M. Peterson & R.J. SorengLittle Ricegrass
Pisum sativum L.Garden Pea
Pityopus californica (Eastw.) Copeland f.California pinefoot
Plagiobothrys austiniae (Greene) I.M. Johnst.Austin's popcornflower
Plagiobothrys canescens Benth.valley popcornflower
Plagiobothrys figuratus (Piper) I.M. Johnst. ex M. Peckfragrant popcornflower
Plagiobothrys fulvus (Hook. & Arn.) I.M. Johnst.fulvous popcornflower
Plagiobothrys glyptocarpus (Piper) I.M. Johnst.sculptured popcornflower
Plagiobothrys greenei (A. Gray) I.M. Johnst.Greene's popcornflower
Plagiobothrys hirtus (Greene) I.M. Johnst.Rough Popcornflower
Plagiobothrys hispidus A. GrayCascade Popcornflower
Plagiobothrys leptocladus (Greene) I.M. Johnst.finebranched popcornflower
Plagiobothrys mollis (A. Gray) I.M. Johnst.soft popcornflower
Plagiobothrys nothofulvus (A. Gray) A. Grayrusty popcornflower
Plagiobothrys salsus (Brandegee) I.M. Johnst.Salty Popcornflower
Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnst.Scouler's popcornflower
Plagiobothrys shastensis Greene ex A. GrayShasta popcornflower
Plagiobothrys stipitatus (Greene) I.M. Johnst.stalked popcornflower
Plagiobothrys tenellus (Nutt. ex Hook.) A. GrayPacific popcornflower
Plagiobothrys tener (Greene) I.M. Johnst.slender popcornflower
Plantago arenaria Waldst. & Kit.sand plantain
Plantago aristata Michx.Largebracted Plantain
Plantago erecta Morrisdotseed plantain
Plantago eriopoda Torr.redwool plantain
Plantago lanceolata L.Narrowleaf Plantain
Plantago major L.Common Plantain
Plantago maritima L.goose tongue
Plantago patagonica Jacq.Woolly Plantain
Plantago pusilla Nutt.Dwarf Plantain
Plantago subnuda Pilg.tall coastal plantain
Platanthera chorisiana (Cham.) Rchb.Chimissso's orchid
Platanthera huronensis (Nutt.) Lindl.Huron green orchid
Platanthera obtusata (Banks ex Pursh) Lindl.bluntleaved orchid
Platanthera orbiculata (Pursh) Lindl.lesser roundleaved orchid
Platanthera sparsiflora (S. Watson) Schltr.sparse-flowered bog orchid
Platanthera stricta Lindl.slender bog orchid
Platystemon californicus Benth.Creamcups
Plectritis ciliosa (Greene) Jeps.longspur seablush
Plectritis congesta (Lindl.) DC.shortspur seablush
Plectritis macrocera Torr. & A. GrayLonghorn Plectritis
Pleiacanthus spinosus (Nutt.) Rydb.Thorn Skeletonweed
Pleuricospora fimbriolata A. Grayfringed pinesap
Pleuropogon refractus (A. Gray) Benth. ex Vaseynodding semaphoregrass
Poa alpina L.Alpine Bluegrass
Poa annua L.annual bluegrass
Poa arctica R. Br.arctic bluegrass
Poa bolanderi VaseyBolander's bluegrass
Poa bulbosa L.bulbous bluegrass
Poa chambersii SorengChambers' Bluegrass
Poa compressa L.Canada bluegrass
Poa confinis Vaseycoastline bluegrass
Poa curtifolia Scribn.Little Mountain Bluegrass
Poa fendleriana (Steud.) Vaseymuttongrass
Poa glauca VahlGlaucous Bluegrass
Poa howellii Vasey & Scribn.Howell's bluegrass
Poa infirma Kunthweak bluegrass
Poa laxiflora Buckleylooseflower bluegrass
Poa leibergii Scribn.Leiberg's bluegrass
Poa leptocoma Trin.marsh bluegrass
Poa lettermanii VaseyLetterman's bluegrass
Poa macrantha Vaseyseashore bluegrass
Poa marcida Hitchc.withered bluegrass
Poa nervosa (Hook.) VaseyWheeler bluegrass
Poa palustris L.Fowl Bluegrass
Poa paucispicula Scribn. & Merr.Alaska bluegrass
Poa piperi Hitchc.Piper's Bluegrass
Poa pringlei Scribn.Pringle's Bluegrass
Poa rhizomata Hitchc.Rhizome Bluegrass
Poa secunda J. PreslSandberg Bluegrass
Poa stenantha Trin.northern bluegrass
Poa suksdorfii (Beal) Vasey ex Piperwestern bluegrass
Poa trivialis L.Rough Bluegrass
Pogogyne floribunda JokerstProfuseflower Mesamint
Pogogyne ziziphoroides Benth.Sacramento mesamint
Polemonium californicum Eastw.moving polemonium
Polemonium carneum A. Grayroyal Jacob's-ladder
Polemonium chartaceum H. MasonMason's Jacob's-Ladder
Polemonium eddyense StubbsMount Eddy Jacob's-Ladder
Polemonium elegans Greeneelegant Jacob's-ladder
Polemonium micranthum Benth.annual polemonium
Polemonium occidentale Greenewestern polemonium
Polemonium pulcherrimum Hook.Jacob's-ladder
Polycarpon tetraphyllum (L.) L.fourleaf manyseed
Polyctenium fremontii (S. Watson) Greenedesert combleaf
Polygala vulgaris L.common milkwort
Polygonum achoreum S.F. Blakeleathery knotweed
Polygonum argyrocoleon Steud. ex Kunzesilversheath knotweed
Polygonum californicum Meisn.California knotweed
Polygonum douglasii GreeneDouglas' knotweed
Polygonum erectum L.Erect Knotweed
Polygonum fowleri B.L. Rob.Fowler's knotweed
Polygonum minimum S. Watsonbroadleaf knotweed
Polygonum paronychia Cham. & Schltdl.beach knotweed
Polygonum parryi GreeneParry's knotweed
Polygonum pensylvanicum L.Pennsylvania Smartweed
Polygonum polygaloides Wall. ex Meisn.Milkwort Knotweed
Polygonum ramosissimum Michx.Bushy Knotweed
Polygonum shastense W.H. BrewerShasta knotweed
Polypodium amorphum Suksd.irregular polypody
Polypodium californicum Kaulf.California polypody
Polypodium calirhiza S. Whitmore & A.R. Sm.nested polypody
Polypodium glycyrrhiza D.C. Eatonlicorice fern
Polypodium hesperium Maxonwestern polypody
Polypodium scouleri Hook. & Grev.leathery polypody
Polypogon australis Brongn.Chilean rabbitsfoot grass
Polypogon interruptus Kunthditch rabbitsfoot grass
Polypogon monspeliensis (L.) Desf.annual rabbitsfoot grass
Polypogon viridis (Gouan) Breistr.beardless rabbitsfoot grass
Polystichum andersonii HopkinsAnderson's hollyfern
Polystichum californicum (D.C. Eaton) DielsCalifornia swordfern
Polystichum imbricans (D.C. Eaton) D.H. Wagnernarrowleaf swordfern
Polystichum lemmonii Underw.Lemmon's hollyfern
Polystichum lonchitis (L.) Rothnorthern hollyfern
Polystichum munitum (Kaulf.) C. Preslwestern swordfern
Pontederia cordata L.Pickerelweed
Pontederia crassipes Mart.Common Water Hyacinth
Populus alba L.White Poplar
Populus balsamifera L.Balsam Poplar
Populus deltoides W. Bartram ex MarshallEastern Cottonwood
Populus nigra L.Lombardy poplar
Populus tremuloides Michx.Quaking Aspen
Porterella carnosula (Hook. & Arn.) Torr.Fleshy Porterella
Portulaca oleracea L.Common Purslane
Potamogeton alpinus Balbisalpine pondweed
Potamogeton amplifolius Tuck.largeleaf pondweed
Potamogeton crispus L.Curly Pondweed
Potamogeton diversifolius Raf.waterthread 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 obtusifolius Mert. & W.D.J. Kochbluntleaf pondweed
Potamogeton praelongus Wulfenwhitestem pondweed
Potamogeton pusillus L.small pondweed
Potamogeton richardsonii (Benn.) Rydb.Richardson's pondweed
Potamogeton robbinsii OakesRobbins' Pondweed
Potamogeton zosteriformis Fernaldflatstem pondweed
Potentilla anglica LaichardingEnglish cinquefoil
Potentilla biennis Greenebiennial cinquefoil
Potentilla cristae Ferlatte & StrotherCrested Cinquefoil
Potentilla daucifolia GreeneCarrotleaf Horkelia
Potentilla drummondii Lehm.Drummond's cinquefoil
Potentilla flabellifolia Hook. ex Torr. & A. Grayhigh mountain cinquefoil
Potentilla gracilis Douglas ex Hook.slender cinquefoil
Potentilla hendersonii (Howell) J.T.HowellHenderson's Horkelia
Potentilla inclinata Vill.ashy cinquefoil
Potentilla millefolia Rydb.Cutleaf Cinquefoil
Potentilla newberryi A. GrayNewberry's cinquefoil
Potentilla norvegica L.Norwegian cinquefoil
Potentilla pickeringii (Torr. ex A.Gray) GreeneSilky Mousetail
Potentilla pulcherrima Lehm.beautiful cinquefoil
Potentilla recta L.sulphur cinquefoil
Potentilla reptans L.creeping cinquefoil
Potentilla sericata (S.Watson) GreeneSilky Horkelia
Potentilla villosa Pall. ex Purshvillous cinquefoil
Primula suffrutescens A. GraySierra Primrose
Proboscidea louisianica (Mill.) Thell.Ram's Horn
Prosartes hookeri Torr.drops-of-gold
Prosartes smithii "(Hook.) Utechlargeflower fairybells
Prunella vulgaris L.Common Selfheal
Prunus americana MarshallAmerican Plum
Prunus armeniaca L.apricot
Prunus cerasifera Ehrh.cherry plum
Prunus cerasus L.sour cherry
Prunus domestica L.European plum
Prunus emarginata (Douglas ex Hook.) D. Dietr.bitter cherry
Prunus laurocerasus L.cherry laurel
Prunus lusitanica L.Portugal laurel
Prunus persica (L.) BatschPeach
Prunus pumila L.Sandcherry
Prunus serotina Ehrh.Black Cherry
Prunus spinosa L.blackthorn
Prunus subcordata Benth.Klamath plum
Prunus tomentosa Thunb.Nanking cherry
Prunus virginiana L.Chokecherry
Pseudofumaria lutea (L.) Borkh.rock fumewort
Pseudognaphalium californicum (DC.) Anderb.ladies' tobacco
Pseudognaphalium canescens (DC.) W.A. WeberWright's cudweed
Pseudognaphalium macounii (Greene) KarteszMacoun's cudweed
Pseudognaphalium stramineum (Kunth) Anderb.Cottonbatting Plant
Pseudoroegneria spicata (Pursh) Á. LöveBluebunch Wheatgrass
Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartm.tuber starwort
Pseudotsuga menziesii (Mirb.) FrancoDouglas Fir
Psilocarphus brevissimus Nutt.short woollyheads
Psilocarphus elatior (A. Gray) A. Graymeadow woollyheads
Psilocarphus oregonus Nutt.Oregon woollyheads
Psilocarphus tenellus Nutt.slender woollyheads
Ptelea crenulata GreeneCalifornia hoptree
Pteridium aquilinum (L.) Kuhnwestern brackenfern
Pterospora andromedea Nutt.woodland pinedrops
Puccinellia distans (Jacq.) Parl.weeping alkaligrass
Puccinellia lemmonii (Vasey) Scribn.Lemmon's alkaligrass
Puccinellia maritima (Huds.) Parl.seaside alkaligrass
Puccinellia nuttalliana (Schult.) Hitchc.Nuttall's Alkaligrass
Puccinellia pumila (Vasey) Hitchc.dwarf alkaligrass
Pueraria montana (Lour.) Merr.Kudzu
Pulsatilla occidentalis (S. Watson) Freynwhite pasqueflower
Pulsatilla patens (L.) Mill.eastern pasqueflower
Purshia tridentata (Pursh) DC.Antelope Bitterbrush
Pycnanthemum californicum Torr. ex DurandSierra mint
Pyracantha coccinea M. Roem.scarlet firethorn
Pyracantha fortuneana (Maxim.) LiChinese firethorn
Pyrola asarifolia Michx.Liverleaf Wintergreen
Pyrola chlorantha Sw.Greenflowered Wintergreen
Pyrola minor L.snowline wintergreen
Pyrola picta Sm.whiteveined wintergreen
Pyrrocoma carthamoides Hook.largeflower goldenweed
Pyrrocoma hirta (A. Gray) Greenetacky goldenweed
Pyrrocoma lanceolata (Hook.) Greenelanceleaf goldenweed
Pyrrocoma racemosa (Nutt.) Torr. & A. Grayclustered goldenweed
Pyrus communis L.Common Pear
Quercus agrifolia NéeCalifornia live oak
Quercus cerris L.European Turkey Oak
Quercus chrysolepis Liebm.Canyon Live Oak
Quercus douglasii Hook. & Arn.blue oak
Quercus garryana Douglas ex Hook.Oregon White Oak
Quercus kelloggii NewberryCalifornia Black Oak
Quercus robur L.English Oak
Quercus rubra L.Northern Red Oak
Quercus sadleriana R. Br. terDeer Oak
Quercus vacciniifolia Kellogghuckleberry oak
Quercus wislizeni A. DC.interior live oak
Rafinesquia californica Nutt.California plumeseed
Raillardella argentea (A. Gray) A. GraySilky Raillardella
Raillardella pringlei GreeneShowy Raillardella
Raillardella scaposa (A. Gray) A. GrayStem Raillardella
Rainiera stricta (Greene) Greenefalse silverback
Ranunculus acris L.tall buttercup
Ranunculus alismifolius Geyer ex Benth.plantainleaf buttercup
Ranunculus aquatilis L.white water crowfoot
Ranunculus arvensis L.corn buttercup
Ranunculus austro-oreganus L.D.BensonSouthern Oregon Buttercup
Ranunculus bulbosus L.St. Anthony's turnip
Ranunculus californicus Benth.California buttercup
Ranunculus canus Benth.Sacramento Valley buttercup
Ranunculus cymbalaria PurshAlkali Buttercup
Ranunculus eschscholtzii Schltdl.Eschscholtz's Buttercup
Ranunculus ficaria L.Lesser Celandine
Ranunculus flabellaris Raf.Yellow Water Buttercup
Ranunculus flammula L.greater creeping spearwort
Ranunculus glaberrimus Hook.sagebrush buttercup
Ranunculus gmelinii DC.Gmelin's buttercup
Ranunculus gormanii GreeneGorman's buttercup
Ranunculus hebecarpus Hook. & Arn.delicate buttercup
Ranunculus lobbii (Hiern.) A. GrayLobb's buttercup
Ranunculus longirostris Godr.Longbeak Buttercup
Ranunculus macounii BrittonMacoun's buttercup
Ranunculus muricatus L.spinyfruit buttercup
Ranunculus occidentalis Nutt.western buttercup
Ranunculus orthorhynchus Hook.straightbeak buttercup
Ranunculus parviflorus L.smallflower buttercup
Ranunculus pensylvanicus L. f.Pennsylvania buttercup
Ranunculus populago Greenepopular buttercup
Ranunculus repens L.creeping buttercup
Ranunculus sardous Crantzhairy buttercup
Ranunculus sceleratus L.cursed buttercup
Ranunculus suksdorfii A. GraySuksdorf's buttercup
Ranunculus trichophyllus Chaixthreadleaf crowfoot
Ranunculus triternatus A. GrayObscure Buttercup
Ranunculus uncinatus D. Don ex G. Donwoodland buttercup
Raphanus raphanistrum L.wild radish
Raphanus sativus L.cultivated radish
Rapistrum rugosum (L.) All.Annual Bastard Cabbage
Reseda alba L.white upright mignonette
Reseda lutea L.yellow mignonette
Reseda luteola L.weld
Rhamnus alnifolia L'Hér.alderleaf buckthorn
Rhamnus ilicifolia Kellogghollyleaf redberry
Rhinanthus minor L.little yellow rattle
Rhodiola integrifolia Raf.ledge stonecrop
Rhododendron albiflorum Hook.Cascade azalea
Rhododendron columbianum (Piper) HarmajaWestern Labrador Tea
Rhododendron groenlandicum (Oeder) Kron & JuddBog Labrador Tea

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Article Status: ✓ = complete

Range map status: ∅ = No map,
= Our research
, accurate to lv (1,2,3,4) ecoregions,
= tentative, excludes Canada & Mexico
ERA = auto-generated from ERA data.

Map Legend: Native Introduced Native or Not Present Introduced or Not Present Native or Introduced Expanded or Not Present Native or Expanded or Not Present

Progress

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Range Map
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Map to L2
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Map to L3
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