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4655 Plants Found

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Ordered by scientific name.

Scientific NameCommon NameMap‡
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
Piptatheropsis micrantha "(Trin. & Rupr.) Romasch.littleseed ricegrass
Piptatherum miliaceum (L.) Coss.smilograss
Pistacia atlantica Desf.Mt. Atlas Mastic Tree
Pistacia chinensis BungeChinese Pistache
Pisum sativum L.Garden Pea
Pittosporum tobira (Thunb.) W.T. AitonJapanese cheesewood
Pityopus californica (Eastw.) Copeland f.California pinefoot
Plagiobothrys acanthocarpus (Piper) I.M. Johnst.adobe popcornflower
Plagiobothrys arizonicus (A. Gray) Greene ex A. GrayArizona popcornflower
Plagiobothrys austiniae (Greene) I.M. Johnst.Austin's popcornflower
Plagiobothrys bracteatus (Howell) I.M. Johnst.Bracted Popcornflower
Plagiobothrys canescens Benth.valley popcornflower
Plagiobothrys collinus (Phil.) I.M. Johnst.Cooper's popcornflower
Plagiobothrys distantiflorus (Piper) I.M. Johnst. ex M. PeckCalifornia Popcornflower
Plagiobothrys fulvus (Hook. & Arn.) I.M. Johnst.fulvous popcornflower
Plagiobothrys glomeratus A. GrayClustered Popcornflower
Plagiobothrys glyptocarpus (Piper) I.M. Johnst.sculptured popcornflower
Plagiobothrys greenei (A. Gray) I.M. Johnst.Greene's popcornflower
Plagiobothrys hispidus A. GrayCascade Popcornflower
Plagiobothrys humistratus (Greene) I.M. Johnst.dwarf popcornflower
Plagiobothrys infectivus I.M. Johnst.dye popcornflower
Plagiobothrys jonesii A. GrayMojave popcornflower
Plagiobothrys leptocladus (Greene) I.M. Johnst.finebranched popcornflower
Plagiobothrys mollis (A. Gray) I.M. Johnst.soft popcornflower
Plagiobothrys nitens (Greene) I.M. Johnst.Shiny-Nutlet Popcornflower
Plagiobothrys nothofulvus (A. Gray) A. Grayrusty popcornflower
Plagiobothrys parishii I.M. Johnst.Parish's Popcornflower
Plagiobothrys salsus (Brandegee) I.M. Johnst.Salty Popcornflower
Plagiobothrys scriptus (Greene) I.M. Johnst.scribe 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
Plagiobothrys torreyi (A. Gray) A. GrayTorrey's Popcornflower
Plagiobothrys trachycarpus (A. Gray) I.M. Johnst.roughfruit popcornflower
Plagiobothrys undulatus (Piper) I.M. Johnst.artist's popcornflower
Planodes virginicum (L.) GreeneVirginia Winged Rockcress
Plantago aristata Michx.Largebracted Plantain
Plantago bigelovii A. GrayCoast Plantain
Plantago coronopus L.Buckhorn Plantain
Plantago erecta Morrisdotseed plantain
Plantago eriopoda Torr.redwool plantain
Plantago firma Kunze ex Walp.Chilean plantain
Plantago lanceolata L.Narrowleaf Plantain
Plantago major L.Common Plantain
Plantago ovata Forssk.desert Indianwheat
Plantago patagonica Jacq.Woolly Plantain
Plantago virginica L.Virginia Plantain
Platanthera elegans Lindl.Hillside Rein Orchid
Platanthera sparsiflora (S. Watson) Schltr.sparse-flowered bog orchid
Platanthera tescamnis Sheviak & W.F. Jenn.Intermountain Bog Orchid
Platanthera yosemitensis Colwell, Sheviak & P.E. MooreYosemite Bog Orchid
Platanus ×hispanica Mill. ex Münchh.London Planetree
Platanus racemosa Nutt.California sycamore
Platystemon californicus Benth.Creamcups
Platystigma lineare Benth.Narrowleaf Queen Poppy
Plectritis ciliosa (Greene) Jeps.longspur seablush
Plectritis congesta (Lindl.) DC.shortspur seablush
Plectritis macrocera Torr. & A. GrayLonghorn Plectritis
Pleiacanthus spinosus (Nutt.) Rydb.Thorn Skeletonweed
Pleuraphis rigida Thurb.big galleta
Pleuricospora fimbriolata A. Grayfringed pinesap
Pleurocoronis pluriseta (A. Gray) R.M. King & H. Rob.bush arrowleaf
Pleuropogon californicus (Nees) Benth. ex Vaseyannual semaphoregrass
Pluchea odorata (L.) Cass.sweetscent
Pluchea sericea (Nutt.) CovilleArrowweed
Poa abbreviata R. Br.short bluegrass
Poa annua L.annual bluegrass
Poa bigelovii Vasey & Scribn.Bigelow's bluegrass
Poa bolanderi VaseyBolander's bluegrass
Poa bulbosa L.bulbous bluegrass
Poa compressa L.Canada bluegrass
Poa cusickii VaseyCusick's Bluegrass
Poa fendleriana (Steud.) Vaseymuttongrass
Poa glauca VahlGlaucous Bluegrass
Poa howellii Vasey & Scribn.Howell's bluegrass
Poa infirma Kunthweak bluegrass
Poa keckii SorengKeck's Bluegrass
Poa leptocoma Trin.marsh bluegrass
Poa lettermanii VaseyLetterman's bluegrass
Poa nemoralis L.Wood Bluegrass
Poa palustris L.Fowl Bluegrass
Poa pringlei Scribn.Pringle's Bluegrass
Poa secunda J. PreslSandberg Bluegrass
Poa sierrae J.T. HowellSierra Bluegrass
Poa stebbinsii SorengStebbin's Bluegrass
Poa tenerrima Scribn.Delicate Bluegrass
Poa trivialis L.Rough Bluegrass
Poa wheeleri VaseyWheeler's Bluegrass
Podistera nevadensis (A. Gray) S. WatsonNevada Podistera
Pogogyne douglasii Benth.Douglas' Mesamint
Pogogyne floribunda JokerstProfuseflower Mesamint
Pogogyne serpylloides (Torr.) A. Graythymeleaf mesamint
Pogogyne ziziphoroides Benth.Sacramento mesamint
Polanisia dodecandra (L.) DC.redwhisker clammyweed
Polemonium californicum Eastw.moving polemonium
Polemonium chartaceum H. MasonMason's Jacob's-Ladder
Polemonium eximium GreeneSkypilot
Polemonium micranthum Benth.annual polemonium
Polemonium occidentale Greenewestern polemonium
Polemonium pulcherrimum Hook.Jacob's-ladder
Polycarpon depressum Nutt.California manyseed
Polycarpon tetraphyllum (L.) L.fourleaf manyseed
Polyctenium fremontii (S. Watson) Greenedesert combleaf
Polygonum argyrocoleon Steud. ex Kunzesilversheath knotweed
Polygonum bidwelliae S. WatsonBidwell's Knotweed
Polygonum bolanderi W.H. BrewerBolander's knotweed
Polygonum californicum Meisn.California knotweed
Polygonum douglasii GreeneDouglas' knotweed
Polygonum heterosepalum M. Peck & OwnbeyOddsepal Knotweed
Polygonum minimum S. Watsonbroadleaf knotweed
Polygonum parryi GreeneParry's knotweed
Polygonum pensylvanicum L.Pennsylvania Smartweed
Polygonum ramosissimum Michx.Bushy Knotweed
Polygonum shastense W.H. BrewerShasta knotweed
Polypodium californicum Kaulf.California polypody
Polypodium calirhiza S. Whitmore & A.R. Sm.nested polypody
Polypodium glycyrrhiza D.C. Eatonlicorice fern
Polypodium hesperium Maxonwestern polypody
Polypogon australis Brongn.Chilean rabbitsfoot grass
Polypogon elongatus Kunthstreambank rabbitsfoot grass
Polypogon interruptus Kunthditch rabbitsfoot grass
Polypogon maritimus Willd.Mediterranean rabbitsfoot grass
Polypogon monspeliensis (L.) Desf.annual rabbitsfoot grass
Polypogon viridis (Gouan) Breistr.beardless rabbitsfoot grass
Polystichum californicum (D.C. Eaton) DielsCalifornia swordfern
Polystichum imbricans (D.C. Eaton) D.H. Wagnernarrowleaf swordfern
Polystichum kruckebergii W.H. WagnerKruckeberg's Hollyfern
Polystichum lemmonii Underw.Lemmon's hollyfern
Polystichum lonchitis (L.) Rothnorthern hollyfern
Polystichum munitum (Kaulf.) C. Preslwestern swordfern
Polystichum scopulinum (D.C. Eaton) MaxonMountain Hollyfern
Pontederia crassipes Mart.Common Water Hyacinth
Pontederia vaginalis Burm.f.Heartshape False Pickerelweed
Populus alba L.White Poplar
Populus angustifolia JamesNarrowleaf Cottonwood
Populus balsamifera L.Balsam Poplar
Populus deltoides W. Bartram ex MarshallEastern Cottonwood
Populus fremontii S. WatsonFremont Cottonwood
Populus nigra L.Lombardy poplar
Populus tremuloides Michx.Quaking Aspen
Porophyllum gracile Benth.slender poreleaf
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 illinoensis MorongIllinois Pondweed
Potamogeton natans L.floating pondweed
Potamogeton nodosus Poir.longleaf 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 baileyi (S.Watson) GreeneBailey's Ivesia
Potentilla basaltica Tiehm & ErtterSoldier Meadows Cinquefoil
Potentilla biennis Greenebiennial cinquefoil
Potentilla campestris (M.E.Jones) Jeps.Field Mousetail
Potentilla concinna Richardsonelegant cinquefoil
Potentilla congdonis (Rydb.) Mosyakin & ShiyanCongdon's False Horkelia
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 grayi S. WatsonGray's Cinquefoil
Potentilla hispidula (Rydb.) Jeps.White Mountain Horkelia
Potentilla kingii (S.Watson) GreeneKing's Mousetail
Potentilla longibracteata (Ertter) Mosyakin & ShiyanLongbract Mousetail
Potentilla lycopodioides (A.Gray) Baill. ex J.T.HowellClubmoss Mousetail
Potentilla millefolia Rydb.Cutleaf Cinquefoil
Potentilla morefieldii Ertter, nom. inq.Morefield's Cinquefoil
Potentilla muirii (A.Gray) GreeneGranite Mousetail
Potentilla newberryi A. GrayNewberry's cinquefoil
Potentilla norvegica L.Rough Cinquefoil
Potentilla nubigena GreeneDwarf Mousetail
Potentilla paniculata (T.W.Nelson & J.P.Nelson) Mosyakin & ShiyanAsh Creek Mousetail
Potentilla parryi (Greene) GreeneParry Horkelia
Potentilla pensylvanica L.Pennsylvania cinquefoil
Potentilla pityocharis (Ertter) Mosyakin & ShiyanPine Nut Mountain Mousetail
Potentilla pseudosericea Rydb.Silky Cinquefoil
Potentilla pulcherrima Lehm.beautiful cinquefoil
Potentilla purpurascens (S.Watson) GreenePurple False Horkelia
Potentilla recta L.sulphur cinquefoil
Potentilla reptans L.creeping cinquefoil
Potentilla rivalis Nutt.Brook Cinquefoil
Potentilla saxosa Lemmon & S.A.Lemmon ex GreeneRock Mousetail
Potentilla sericoleuca (Rydb.) J.T.HowellPlumas Mousetail
Potentilla shockleyi (S.Watson) Jeps.Sky Mousetail
Potentilla tularensis J.T.HowellKern Plateau Horkelia
Potentilla unguiculata (A.Gray) Hook.f.Yosemite Mousetail
Potentilla webberi (A.Gray) GreeneWire Mousetail
Potentilla wheeleri S. WatsonKern cinquefoil
Prenanthella exigua (A. Gray) Rydb.brightwhite
Primula clevelandii (Greene) A.R.Mast & RevealPadre's Shootingstar
Primula conjugens (Greene) A.R.Mast & RevealBonneville Shootingstar
Primula fragrans A.R.Mast & RevealScented Shootingstar
Primula hendersonii (A.Gray) A.R.Mast & RevealMosquito Bills
Primula jeffreyi (Van Houtte) A.R.Mast & RevealSierra Shootingstar
Primula pauciflora (Durand) A.R.Mast & RevealDarkthroat Shootingstar
Primula subalpina (Eastw.) A.R.Mast & RevealSierra Shootingstar
Primula suffrutescens A. GraySierra Primrose
Primula tetrandra (Suksd.) A.R.Mast & RevealAlpine Shootingstar
Proboscidea louisianica (Mill.) Thell.Ram's Horn
Proboscidea parviflora (Wooton) Wooton & Standl.Doubleclaw
Prosartes hookeri Torr.drops-of-gold
Prosopis glandulosa Torr.Honey Mesquite
Prosopis pubescens Benth.screwbean mesquite
Prosopis velutina Wootonvelvet mesquite
Prunella vulgaris L.Common Selfheal
Prunus andersonii A. GrayDesert Peach
Prunus armeniaca L.apricot
Prunus avium (L.) L.Sweet Cherry
Prunus caroliniana AitonCarolina Laurelcherry
Prunus cerasifera Ehrh.cherry plum
Prunus domestica L.European plum
Prunus dulcis (Mill.) D.A. Webbsweet almond
Prunus emarginata (Douglas ex Hook.) D. Dietr.bitter cherry
Prunus fasciculata (Torr.) A. Graydesert almond
Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr.hollyleaf cherry
Prunus lusitanica L.Portugal laurel
Prunus mahaleb L.Mahaleb Cherry
Prunus persica (L.) BatschPeach
Prunus subcordata Benth.Klamath plum
Prunus virginiana L.Chokecherry
Psathyrotes annua (Nutt.) A. Grayannual psathyrotes
Psathyrotes ramosissima (Torr.) A. Grayvelvet turtleback
Pseudobahia bahiifolia (Benth.) Rydb.Hartweg's Golden Sunburst
Pseudobahia heermannii (Durand) Rydb.foothill sunburst
Pseudobahia peirsonii MunzSan Joaquin Adobe Sunburst
Pseudognaphalium biolettii Anderb.two-color rabbit-tobacco
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 macrocarpa (Vasey) Mayrbigcone Douglas-fir
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
Psorothamnus arborescens (Torr. ex A. Gray) BarnebyMojave indigobush
Psorothamnus fremontii (Torr. ex A. Gray) BarnebyFremont's dalea
Psorothamnus polydenius (Torr. ex S. Watson) Rydb.Nevada dalea
Psorothamnus spinosus (A. Gray) Barnebysmoketree
Ptelea crenulata GreeneCalifornia hoptree
Pteridium aquilinum (L.) Kuhnwestern brackenfern
Pterospora andromedea Nutt.woodland pinedrops
Pterostegia drymarioides Fisch. & C.A. Mey.woodland pterostegia
Ptilagrostiella kingii (Bol.) RomascSierra False Needlegrass
Puccinellia distans (Jacq.) Parl.weeping alkaligrass
Puccinellia howellii J.I. DavisHowell's Alkaligrass
Puccinellia lemmonii (Vasey) Scribn.Lemmon's alkaligrass
Puccinellia nuttalliana (Schult.) Hitchc.Nuttall's Alkaligrass
Puccinellia parishii Hitchc.bog alkaligrass
Puccinellia simplex Scribn.California alkaligrass
Pulsatilla occidentalis (S. Watson) Freynwhite pasqueflower
Punica granatum L.pomegranate
Purshia glandulosa Currandesert bitterbrush
Purshia stansburiana (Torr.) HenricksonStansbury Cliffrose
Purshia tridentata (Pursh) DC.Antelope Bitterbrush
Pycnanthemum californicum Torr. ex DurandSierra mint
Pyracantha angustifolia (Franch.) C.K. Schneid.narrowleaf firethorn
Pyracantha fortuneana (Maxim.) LiChinese firethorn
Pyracantha koidzumii (Hayata) RehderFormosa firethorn
Pyrola asarifolia Michx.Liverleaf Wintergreen
Pyrola chlorantha Sw.Greenflowered Wintergreen
Pyrola minor L.snowline wintergreen
Pyrola picta Sm.whiteveined wintergreen
Pyrrocoma apargioides (A. Gray) GreeneAlpineflames
Pyrrocoma carthamoides Hook.largeflower goldenweed
Pyrrocoma hirta (A. Gray) Greenetacky goldenweed
Pyrrocoma lanceolata (Hook.) Greenelanceleaf goldenweed
Pyrrocoma lucida (D.D. Keck) Kartesz & GandhiSticky Goldenweed
Pyrrocoma racemosa (Nutt.) Torr. & A. Grayclustered goldenweed
Pyrrocoma uniflora (Hook.) GreenePlantain Goldenweed
Pyrus communis L.Common Pear
Quercus ×alvordiana Eastw.Alvord Oak
Quercus agrifolia NéeCalifornia live oak
Quercus berberidifolia Liebm.Scrub Oak
Quercus chrysolepis Liebm.Canyon Live Oak
Quercus cornelius-mulleri Nixon & SteeleMuller oak
Quercus douglasii Hook. & Arn.blue oak
Quercus dumosa Nutt.coastal sage scrub oak
Quercus durata Jeps.leather oak
Quercus garryana Douglas ex Hook.Oregon White Oak
Quercus john-tuckeri Nixon & C.H. Mull.Tucker oak
Quercus kelloggii NewberryCalifornia Black Oak
Quercus lobata Néevalley oak
Quercus palmeri Engelm.Palmer oak
Quercus sadleriana R. Br. terDeer Oak
Quercus vacciniifolia Kellogghuckleberry oak
Quercus wislizeni A. DC.interior live oak
Rafinesquia californica Nutt.California plumeseed
Rafinesquia neomexicana A. GrayNew Mexico plumeseed
Raillardella argentea (A. Gray) A. GraySilky Raillardella
Raillardella scaposa (A. Gray) A. GrayStem Raillardella
Ranunculus acris L.tall buttercup
Ranunculus alismifolius Geyer ex Benth.plantainleaf buttercup
Ranunculus aquatilis L.white water crowfoot
Ranunculus arvensis L.corn buttercup
Ranunculus bonariensis Poir.Carter's Buttercup
Ranunculus californicus Benth.California buttercup
Ranunculus canus Benth.Sacramento Valley buttercup
Ranunculus cymbalaria PurshAlkali Buttercup
Ranunculus eschscholtzii Schltdl.Eschscholtz's Buttercup
Ranunculus flabellaris Raf.Yellow Water Buttercup
Ranunculus flammula L.greater creeping spearwort
Ranunculus glaberrimus Hook.sagebrush buttercup
Ranunculus hebecarpus Hook. & Arn.delicate buttercup
Ranunculus hydrocharoides A. Grayfrogbit 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 populago Greenepopular buttercup
Ranunculus pusillus Poir.low spearwort
Ranunculus repens L.creeping buttercup
Ranunculus sardous Crantzhairy buttercup
Ranunculus sceleratus L.cursed buttercup
Ranunculus suksdorfii A. GraySuksdorf's buttercup
Ranunculus testiculatus CrantzCurveseed Butterwort
Ranunculus trichophyllus Chaixthreadleaf crowfoot
Ranunculus uncinatus D. Don ex G. Donwoodland buttercup
Raphanus raphanistrum L.wild radish
Raphanus sativus L.cultivated radish
Ratibida columnifera (Nutt.) Wooton & Standl.Upright Prairie Coneflower
Reseda luteola L.weld
Reynoutria sachalinensis (F.Schmidt) NakaiGiant Knotweed
Rhamnus alnifolia L'Hér.alderleaf buckthorn
Rhamnus crocea Nutt.Redberry Buckthorn
Rhamnus ilicifolia Kellogghollyleaf redberry
Rhinotropis cornuta (Kellogg) J.R.AbbottSierra Milkwort
Rhinotropis heterorhyncha (Barneby) J.R.AbbottBeaked Spiny Polygala
Rhinotropis intermontana (T.Wendt) J.R.AbbottIntermountain Milkwort
Rhinotropis subspinosa (S.Watson) J.R.AbbottSpiny Milkwort
Rhodiola integrifolia Raf.ledge stonecrop
Rhododendron columbianum (Piper) HarmajaWestern Labrador Tea
Rhododendron occidentale (Torr. & A. Gray) A. Graywestern azalea
Rhus aromatica AitonFragrant Sumac
Rhus ovata S. Watsonsugar sumac
Rhus trilobata Nutt.Skunkbush Sumac
Rhynchospora alba (L.) VahlWhite Beaksedge
Rhynchospora californica GaleCalifornia beaksedge
Rhynchospora capitellata (Michx.) VahlBrownish Beaksedge
Rhysopterus plurijugus J.M.Coult. & RoseWrinklewing Springparsley
Ribes amarum McClatchiebitter gooseberry
Ribes aureum PurshGolden Currant
Ribes binominatum A. HellerGround Gooseberry
Ribes californicum Hook. & Arn.hillside gooseberry
Ribes cereum Douglaswax currant
Ribes divaricatum DouglasSpreading Gooseberry
Ribes hudsonianum RichardsonNorthern Black Currant
Ribes inerme Rydb.whitestem gooseberry
Ribes lacustre (Pers.) Poir.prickly currant
Ribes lasianthum GreeneAlpine Gooseberry
Ribes lobbii A. GrayGummy Gooseberry
Ribes malvaceum Sm.chaparral currant
Ribes menziesii Purshcanyon gooseberry
Ribes montigenum McClatchiegooseberry currant
Ribes nevadense KelloggSierra currant
Ribes quercetorum Greenerock gooseberry
Ribes roezlii RegelSierra gooseberry
Ribes sanguineum Purshredflower currant
Ribes tularense (Coville) FeddeTulare Gooseberry
Ribes velutinum Greenedesert gooseberry
Ribes viscosissimum Purshsticky currant
Ricinus communis L.castorbean
Rigiopappus leptocladus A. Graywireweed
Robinia pseudoacacia L.Black Locust
Romanzoffia sitchensis Bong.Sitka Mistmaiden
Romulea rosea (L.) Eckl.rosy sandcrocus
Rorippa austriaca (Crantz) BesserAustrian yellowcress
Rorippa columbiae (Suksd. ex B.L. Rob.) Suksd. ex HowellColumbian yellowcress
Rorippa curvipes Greenebluntleaf yellowcress
Rorippa curvisiliqua (Hook.) Besser ex Brittoncurvepod yellowcress
Rorippa palustris (L.) Besserbog yellowcress
Rorippa sinuata (Nutt.) Hitchc.spreading yellowcress
Rorippa sphaerocarpa (A. Gray) Brittonroundfruit yellowcress
Rorippa subumbellata RollinsLake Tahoe Yellowcress
Rorippa tenerrima GreeneModoc yellowcress
Rosa bridgesii Crép.pygmy rose
Rosa californica Cham. & Schltdl.California wildrose
Rosa canina L.dog rose
Rosa gymnocarpa Nutt.dwarf rose
Rosa multiflora Thunb.Multiflora Rose
Rosa pisocarpa A. GrayCluster Rose
Rosa pulverulenta M.Bieb.Mediterranean Rose
Rosa rubiginosa L.sweetbriar rose
Rosa spithamea S. Watsonground rose
Rosa woodsii Lindl.Woods' Rose
Rostraria cristata (L.) TzvelevMediterranean hairgrass
Rotala indica (Willd.) KoehneIndian toothcup
Rotala ramosior (L.) Koehnelowland rotala
Rubus allegheniensis PorterAllegheny blackberry
Rubus glaucifolius KelloggSan Diego raspberry
Rubus laciniatus Willd.cutleaf blackberry
Rubus leucodermis Douglas ex Torr. & A. Graywhitebark raspberry
Rubus parviflorus Nutt.thimbleberry
Rubus pensilvanicus Poir.Pennsylvania Blackberry
Rubus phoenicolasius Maxim.Wineberry
Rubus ulmifolius Schottelmleaf blackberry
Rubus ursinus Cham. & Schltdl.California Blackberry
Rudbeckia californica A. GrayCalifornia Coneflower
Rudbeckia hirta L.Black-eyed Susan
Rudbeckia klamathensis P. Cox & UrbatschKlamath Coneflower
Rudbeckia occidentalis Nutt.western coneflower
Rumex acetosella L.Common Sheep Sorrel
Rumex conglomeratus Murrayclustered dock
Rumex crispus L.curly dock
Rumex dentatus L.toothed dock
Rumex hymenosepalus Torr.canaigre dock
Rumex kerneri BorbásKerner's dock
Rumex obtusifolius L.Bitter Dock
Rumex occidentalis S. WatsonWestern Dock
Rumex orbiculatus A. GrayGreater Water Dock
Rumex paucifolius Nutt.alpine sheep sorrel
Rumex pulcher L.fiddle dock
Rumex salicifolius Weinm.Willow Dock
Rumex stenophyllus Ledeb.narrowleaf dock
Rumex venosus PurshVeiny Dock
Rumex violascens Rech. f.Violet Dock
Rupertia hallii (Rydb.) J. GrimesHall's California Tea
Rupertia physodes (Douglas ex Hook.) J. GrimesForest Scurfpea
Ruppia cirrhosa (Petagna) Grandespiral ditchgrass
Sabulina rosei (Maguire & Barneby) Dillenb. & KadereitPeanut Stitchwort
Sabulina rubella (Wahlenb.) Dillenb. & KadereitBeautiful Sandwort
Sabulina stricta (Sw.) Rchb.Bog Stitchwort
Saccharum ravennae (L.) L.ravennagrass
Sagina apetala Ard.annual pearlwort
Sagina decumbens (Elliott) Torr. & A. Graytrailing pearlwort
Sagina procumbens L.Birdeye Pearlwort
Sagina saginoides (L.) Karst.arctic pearlwort
Sagittaria calycina Engelm.Hooded Arrowhead
Sagittaria cuneata Sheldonarumleaf arrowhead
Sagittaria latifolia Willd.Broadleaf Arrowhead
Sagittaria longiloba Engelm. ex J.G. Sm.longbarb arrowhead
Sagittaria rigida Purshsessilefruit arrowhead
Sagittaria sanfordii Greenevalley arrowhead
Sairocarpus cornutus (Benth.) D.A. Suttonspurred snapdragon
Sairocarpus kingii (S. Watson) D.A. SuttonLeast Snapdragon
Sairocarpus multiflorus (Pennell) D.A. SuttonSierra snapdragon
Sairocarpus subcordatus (A. Gray) D.A. SuttonDimorphic Snapdragon
Sairocarpus vexillocalyculatus (Kellogg) D.A. Suttonwiry snapdragon
Salazaria mexicana Torr.Mexican bladdersage
Salicornia depressa Standl.Virginia glasswort
Salicornia rubra A. Nelsonred swampfire
Salix amygdaloides Anderssonpeachleaf willow
Salix babylonica L.Weeping willow
Salix bebbiana Sarg.Bebb Willow
Salix boothii DornBooth's willow
Salix brachycarpa Nutt.Shortfruit Willow
Salix breweri BebbBrewer's willow
Salix drummondiana Barratt ex Hook.Drummond's willow
Salix eastwoodiae Cockerell ex A. Hellermountain willow
Salix exigua Nutt.narrowleaf willow
Salix geyeriana AnderssonGeyer willow
Salix gooddingii C.R. BallGoodding's Willow
Salix hookeriana Barratt ex Hook.dune willow
Salix jepsonii C.K. Schneid.Jepson's willow
Salix laevigata Bebbred willow
Salix lasiolepis Benth.arroyo willow
Salix lemmonii BebbLemmon's Willow
Salix ligulifolia (C.R. Ball) C.R. Ball ex C.K. Schneid.Strapleaf Willow
Salix lutea Nutt.yellow willow
Salix melanopsis Nutt.dusky willow
Salix nivalis Hook.snow willow
Salix orestera C.K. Schneid.Sierra Willow
Salix petrophila Rydb.alpine willow
Salix planifolia PurshDiamondleaf Willow
Salix prolixa AnderssonMacKenzie's willow
Salix scouleriana Barratt ex Hook.Scouler's willow
Salix sitchensis Sanson ex Bong.Sitka willow
Salsola paulsenii Litv.barbwire Russian thistle
Salsola soda L.oppositeleaf Russian thistle
Salsola tragus L.prickly Russian thistle
Saltugilia splendens (Douglas ex H. Mason & A.D. Grant) L.A. Johnsonsplendid woodland-gilia
Salvia aethiopis L.Mediterranean sage
Salvia carduacea Benth.thistle sage
Salvia clevelandii (A. Gray) Greenefragrant sage
Salvia columbariae Benth.chia
Salvia dorrii (Kellogg) Abramspurple sage
Salvia funerea M.E. JonesWoolly Sage
Salvia leucophylla GreeneSan Luis purple sage
Salvia mellifera Greeneblack sage
Salvia mohavensis GreeneMojave sage
Salvia pachyphylla Epling ex MunzBlue Sage
Salvia pratensis L.introduced sage

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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 Extirpated Expanded Native or Not Present Introduced or Not Present Native or Introduced Expanded or Not Present Native or Introduced or Not Present

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