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4084 Plants Found

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Ordered by scientific name.

Scientific NameCommon NameMap‡
Perityle emoryi Torr.Emory's rockdaisy
Perityle intricata (Brandegee) ShinnersNarrowleaf Laphamia
Perityle megalocephala (S. Watson) J.F. Macbr.Nevada Rockdaisy
Persicaria amphibia (L.) DelarbreWater Knotweed
Persicaria hydropiperoides (Michx.) SmallSwamp Smartweed
Persicaria lapathifolia (L.) DelarbrePale Smartweed
Persicaria punctata (Elliott) SmallDotted Smartweed
Petalonyx linearis Greenenarrowleaf sandpaper plant
Petalonyx nitidus S. WatsonShinyleaf Sandpaper Plant
Petalonyx thurberi A. GrayThurber's sandpaper plant
Petradoria pumila (Nutt.) GreeneRock Goldenrod
Petrophytum caespitosum (Nutt.) Rydb.mat rockspirea
Petrorhagia dubia (Raf.) G. López & Romohairypink
Petunia axillaris "(Lam.) Brittonlarge white petunia
Petunia integrifolia (Hook.) Schinz & Thell.violetflower petunia
Peucephyllum schottii A. GraySchott's pygmycedar
Phacelia affinis A. Graylimestone phacelia
Phacelia anelsonii J.F. Macbr.Aven Nelson's Phacelia
Phacelia austromontana J.T. HowellSouthern Sierra Phacelia
Phacelia barnebyana J.T. HowellBarneby's Phacelia
Phacelia brachyloba (Benth.) A. Grayshortlobe phacelia
Phacelia calthifolia BrandCalthaleaf Phacelia
Phacelia campanularia A. GrayDesertbells
Phacelia cicutaria Greenecaterpillar phacelia
Phacelia ciliata Benth.Great Valley phacelia
Phacelia coerulea GreeneSkyblue Phacelia
Phacelia congdonii GreeneCongdon's Phacelia
Phacelia crenulata Torr. ex S. Watsoncleftleaf wildheliotrope
Phacelia curvipes Torr. ex S. WatsonWashoe phacelia
Phacelia davidsonii A. GrayDavidson's phacelia
Phacelia distans Benth.distant phacelia
Phacelia douglasii (Benth.) Torr.Douglas' phacelia
Phacelia egena (Greene ex Brand) Greene ex J.T. HowellKaweah River phacelia
Phacelia eisenii BrandegeeEisen's Phacelia
Phacelia exilis (A. Gray) G.L. LeeTransverse Range Phacelia
Phacelia floribunda GreeneSouthern Island Phacelia
Phacelia fremontii Torr.Fremont's Phacelia
Phacelia geraniifolia BrandGeraniumleaf Phacelia
Phacelia grandiflora (Benth.) A. Graylargeflower phacelia
Phacelia grisea A. GraySanta Lucia phacelia
Phacelia hastata Douglas ex Lehm.Silverleaf Phacelia
Phacelia hubbyi (J.F. Macbr.) L.M. Garrisoncaterpillar phacelia
Phacelia humilis Torr. & A. Graylow phacelia
Phacelia imbricata Greeneimbricate phacelia
Phacelia insularis Munzcoast phacelia
Phacelia lemmonii A. GrayLemmon's Phacelia
Phacelia longipes Torr. ex A. GrayLongstalk Phacelia
Phacelia lyonii (A. Gray) Rydb.Lyon's Phacelia
Phacelia malvifolia Cham.stinging phacelia
Phacelia minor (Harv.) Thell.wild canterbury bells
Phacelia mohavensis A. GrayMojave Phacelia
Phacelia mustelina CovilleWeasel Phacelia
Phacelia mutabilis GreeneChangeable Phacelia
Phacelia nashiana Jeps.Charlotte's Phacelia
Phacelia neglecta M.E. Jonesalkali phacelia
Phacelia novenmillensis MunzNine Mile Canyon Phacelia
Phacelia pachyphylla A. Grayblacktack phacelia
Phacelia parishii A. GrayParish's Phacelia
Phacelia parryi Torr.Parry's phacelia
Phacelia pedicellata A. Graypedicellate phacelia
Phacelia perityloides CovillePanamint Phacelia
Phacelia pulchella A. GrayBeautiful Phacelia
Phacelia purpusii BrandegeePurpus' phacelia
Phacelia ramosissima Douglas ex Lehm.branching phacelia
Phacelia rattanii A. GrayRattan's phacelia
Phacelia rotundifolia Torr. ex S. Watsonroundleaf phacelia
Phacelia stellaris BrandStar Phacelia
Phacelia tanacetifolia Benth.lacy phacelia
Phacelia umbrosa GreeneColorado Desert Phacelia
Phacelia vallicola Congd. ex BrandMariposa Phacelia
Phacelia vallis-mortae J. VossDeath Valley phacelia
Phacelia viscida (Benth. ex Lindl.) Torr.tacky phacelia
Phalaris angusta Nees ex Trin.timothy canarygrass
Phalaris aquatica L.bulbous canarygrass
Phalaris arundinacea L.Reed Canary Grass
Phalaris californica Hook. & Arn.California canarygrass
Phalaris canariensis L.Annual Canarygrass
Phalaris lemmonii VaseyLemmon's canarygrass
Phalaris minor Retz.littleseed canarygrass
Phalaris paradoxa L.hood canarygrass
Phaseolus filiformis Benth.slimjim bean
Philadelphus lewisii PurshLewis' mock orange
Philadelphus microphyllus A. Graylittleleaf mock orange
Philadelphus pumilus Rydb.Dwarf Mock Orange
Phleum alpinum L.Alpine Timothy
Phleum pratense L.Timothy
Phlox austromontana Covillemountain phlox
Phlox condensata (A. Gray) E.E. NelsonDwarf Phlox
Phlox diffusa Benth.spreading phlox
Phlox dolichantha A. GrayBig Bear Valley Phlox
Phlox longifolia Nutt.longleaf phlox
Phlox stansburyi (Torr.) A. Hellercold-desert phlox
Phoenix canariensis hort. ex ChabaudCanary Island date palm
Phoenix dactylifera L.date palm
Pholisma arenarium Nutt. ex Hook.desert christmas tree
Pholistoma auritum (Lindl.) Liljablue fiestaflower
Pholistoma membranaceum (Benth.) Constancewhite fiestaflower
Pholistoma racemosum (Nutt. ex A. Gray) Constanceracemed fiestaflower
Phoradendron bolleanum (Seem.) Eichl.Bollean mistletoe
Phoradendron californicum Nutt.mesquite mistletoe
Phoradendron juniperinum Engelm. ex A. GrayJuniper Mistletoe
Phoradendron leucarpum (Raf.) Reveal & M.C. Johnst.Oak Mistletoe
Phragmites australis (Cav.) Trin. ex Steud.Eurasian Common Reed
Phyla lanceolata (Michx.) GreeneLanceleaf Fogfruit
Phyla nodiflora (L.) Greeneturkey tangle fogfruit
Phyllanthus caroliniensis WalterCarolina leaf-flower
Phyllodoce breweri (A. Gray) A. Hellerpurple mountainheath
Phyllospadix scouleri Hook.Scouler's surfgrass
Phyllospadix torreyi S. WatsonTorrey's surfgrass
Phyllostachys aurea Carrière ex A. Rivière & C. Rivièregolden bamboo
Physalis angulata L.Cutleaf Groundcherry
Physalis crassifolia Benth.yellow nightshade groundcherry
Physalis grisea (Waterf.) M. MartínezStrawberry-Tomato
Physalis hederifolia A. Grayivyleaf groundcherry
Physalis pubescens L.Husk Tomato
Physaria chambersii RollinsChambers' Twinpod
Physaria kingii subsp. kingii (S.Watson) O'Kane & Al-ShehbazKing Bladderpod
Physaria tenella (A.Nelson) O'Kane & Al-ShehbazMoapa Bladderpod
Physocarpus capitatus (Pursh) KuntzePacific ninebark
Phytolacca americana L.American Pokeweed
Phytolacca heterotepala H. Walt.Mexican Pokeweed
Phytolacca icosandra L.Tropical Pokeweed
Pickeringia montana Nutt. ex Torr. & A. Graychaparral pea
Pilostyles thurberi A. GrayThurber's stemsucker
Pilularia americana A. BraunAmerican pillwort
Pinus albicaulis Engelm.Whitebark Pine
Pinus attenuata Lemmonknobcone pine
Pinus contorta Douglas ex LoudonLodgepole Pine
Pinus coulteri D. DonCoulter pine
Pinus edulis Engelm.Twoneedle Pinyon
Pinus flexilis JamesLimber Pine
Pinus halepensis Mill.aleppo pine
Pinus jeffreyi Balf.Jeffrey Pine
Pinus lambertiana DouglasSugar Pine
Pinus monophylla Torr. & Frém.Singleleaf Pinyon
Pinus muricata D. DonBishop pine
Pinus pinea L.Italian stone pine
Pinus ponderosa Lawson & C. LawsonPonderosa Pine
Pinus quadrifolia Parl. ex Sudw.Parry pinyon
Pinus radiata D. DonMonterey pine
Pinus sabiniana Douglas ex DouglasCalifornia foothill pine
Pinus torreyana Parry ex CarrièreTorrey Pine
Piperia cooperi (S. Watson) Rydb.Cooper's rein orchid
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 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 crassifolium Banks & Sol. ex A. Cunn.stiffleaf cheesewood
Pittosporum tobira (Thunb.) W.T. AitonJapanese cheesewood
Pittosporum undulatum Vent.Australian cheesewood
Plagiobothrys acanthocarpus (Piper) I.M. Johnst.adobe popcornflower
Plagiobothrys arizonicus (A. Gray) Greene ex A. GrayArizona popcornflower
Plagiobothrys canescens Benth.valley popcornflower
Plagiobothrys collinus (Phil.) I.M. Johnst.Cooper's popcornflower
Plagiobothrys fulvus (Hook. & Arn.) I.M. Johnst.fulvous 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 nothofulvus (A. Gray) A. Grayrusty popcornflower
Plagiobothrys parishii I.M. Johnst.Parish's Popcornflower
Plagiobothrys reticulatus (Piper) I.M. Johnst.netted popcornflower
Plagiobothrys scriptus (Greene) I.M. Johnst.scribe popcornflower
Plagiobothrys stipitatus (Greene) I.M. Johnst.stalked popcornflower
Plagiobothrys tenellus (Nutt. ex Hook.) A. GrayPacific 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 arenaria Waldst. & Kit.sand plantain
Plantago aristata Michx.Largebracted Plantain
Plantago erecta Morrisdotseed plantain
Plantago firma Kunze ex Walp.Chilean plantain
Plantago lanceolata L.Narrowleaf Plantain
Plantago major L.Common Plantain
Plantago maritima L.goose tongue
Plantago ovata Forssk.desert Indianwheat
Plantago patagonica Jacq.Woolly Plantain
Plantago pusilla Nutt.Dwarf Plantain
Plantago rhodosperma Decne.redseed plantain
Plantago subnuda Pilg.tall coastal plantain
Plantago virginica L.Virginia Plantain
Platanthera sparsiflora (S. Watson) Schltr.sparse-flowered bog orchid
Platanus ×hispanica Mill. ex Münchh.London Planetree
Platanus racemosa Nutt.California sycamore
Platystemon californicus Benth.Creamcups
Platystigma lineare Benth.Narrowleaf Queen Poppy
Plecostachys serpyllifolia (P.J. Bergius) Hilliard & B.L. Burttpetite licorice
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
Pluchea odorata (L.) Cass.sweetscent
Pluchea sericea (Nutt.) CovilleArrowweed
Plumbago auriculata Lam.Cape leadwort
Poa annua L.annual bluegrass
Poa atropurpurea Scribn.San Bernardino Bluegrass
Poa bigelovii Vasey & Scribn.Bigelow's bluegrass
Poa bolanderi VaseyBolander's bluegrass
Poa bulbosa L.bulbous bluegrass
Poa compressa L.Canada bluegrass
Poa douglasii NeesDouglas' bluegrass
Poa fendleriana (Steud.) Vaseymuttongrass
Poa howellii Vasey & Scribn.Howell's bluegrass
Poa infirma Kunthweak bluegrass
Poa palustris L.Fowl Bluegrass
Poa secunda J. PreslSandberg Bluegrass
Poa thomasii RefulioCatalina Grass
Poa trivialis L.Rough Bluegrass
Podistera nevadensis (A. Gray) S. WatsonNevada Podistera
Pogogyne abramsii J.T. HowellSan Diego Mesamint
Pogogyne nudiuscula A. GrayOtay Mesamint
Pogogyne serpylloides (Torr.) A. Graythymeleaf mesamint
Polanisia dodecandra (L.) DC.redwhisker clammyweed
Polemonium micranthum Benth.annual polemonium
Polemonium occidentale Greenewestern polemonium
Polemonium pulcherrimum Hook.Jacob's-ladder
Poliomintha incana (Torr.) A. Grayfrosted mint
Polycarpon depressum Nutt.California manyseed
Polycarpon tetraphyllum (L.) L.fourleaf manyseed
Polygala myrtifolia L.Myrtle-Leaf Milkwort
Polygonum argyrocoleon Steud. ex Kunzesilversheath knotweed
Polygonum douglasii GreeneDouglas' knotweed
Polygonum paronychia Cham. & Schltdl.beach 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 hesperium Maxonwestern polypody
Polypodium scouleri Hook. & Grev.leathery 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 imbricans (D.C. Eaton) D.H. Wagnernarrowleaf swordfern
Polystichum munitum (Kaulf.) C. Preslwestern swordfern
Pontederia cordata L.Pickerelweed
Pontederia crassipes Mart.Common Water Hyacinth
Populus ×canadensis MoenchCarolina Poplar
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 halimoides L.silkcotton purslane
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 foliosus Raf.Leafy Pondweed
Potamogeton gramineus L.variableleaf pondweed
Potamogeton natans L.floating pondweed
Potamogeton nodosus Poir.longleaf pondweed
Potamogeton pusillus L.small pondweed
Potentilla anglica LaichardingEnglish cinquefoil
Potentilla argyrocoma (Rydb.) Jeps.Silverhair Mousetail
Potentilla biennis Greenebiennial cinquefoil
Potentilla callida H.M.HallTahquitz Mousetail
Potentilla clevelandii GreeneCleveland's Horkelia
Potentilla gracilis Douglas ex Hook.slender cinquefoil
Potentilla jaegeri (Munz & I.M.Johnst.) L.C.WheelerJaeger's Mousetail
Potentilla norvegica L.Norwegian cinquefoil
Potentilla nubigena GreeneDwarf Mousetail
Potentilla patellifera J.T.HowellKingston Mountain Mousetail
Potentilla purpurascens (S.Watson) GreenePurple False Horkelia
Potentilla rimicola (Munz & I.M. Johnst.) ErtterCliff Cinquefoil
Potentilla saxosa Lemmon & S.A.Lemmon ex GreeneRock Mousetail
Potentilla truncata (Rydb.) Jeps.Ramona Horkelia
Potentilla wheeleri S. WatsonKern cinquefoil
Potentilla wilderae (Parish) Munz & I.M.Johnst.Barton Flats Horkelia
Prenanthella exigua (A. Gray) Rydb.brightwhite
Primula fragrans A.R.Mast & RevealScented Shootingstar
Proboscidea althaeifolia (Benth.) Decne.desert unicorn-plant
Proboscidea louisianica (Mill.) Thell.Ram's Horn
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 caroliniana AitonCarolina Laurelcherry
Prunus dulcis (Mill.) D.A. Webbsweet almond
Prunus emarginata (Douglas ex Hook.) D. Dietr.bitter cherry
Prunus eremophila PriggeMojave Desert Plum
Prunus fasciculata (Torr.) A. Graydesert almond
Prunus fremontii S. Watsondesert apricot
Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr.hollyleaf cherry
Prunus laurocerasus L.cherry laurel
Prunus munsoniana W. Wight & HedrickWild Goose Plum
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 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 leucocephalum (A. Gray) Anderb.white cudweed
Pseudognaphalium macounii (Greene) KarteszMacoun's cudweed
Pseudognaphalium ramosissimum (Nutt.) Anderb.pink cudweed
Pseudognaphalium roseum (Kunth) Anderb.Rosy Cudweed
Pseudognaphalium stramineum (Kunth) Anderb.Cottonbatting Plant
Pseudoroegneria spicata (Pursh) Á. LöveBluebunch Wheatgrass
Pseudorontium cyathiferum (Benth.) Rothm.dog's-mouth
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 oregonus Nutt.Oregon woollyheads
Psilocarphus tenellus Nutt.slender woollyheads
Psilostrophe cooperi (A. Gray) Greenewhitestem paperflower
Psorothamnus arborescens (Torr. ex A. Gray) BarnebyMojave indigobush
Psorothamnus emoryi (A. Gray) Rydb.dyebush
Psorothamnus fremontii (Torr. ex A. Gray) BarnebyFremont's dalea
Psorothamnus polydenius (Torr. ex S. Watson) Rydb.Nevada dalea
Psorothamnus schottii (Torr.) BarnebySchott's dalea
Psorothamnus spinosus (A. Gray) Barnebysmoketree
Ptelea crenulata GreeneCalifornia hoptree
Pteridium aquilinum (L.) Kuhnwestern brackenfern
Pteris cretica L.Cretan brake
Pteris multifida Poir.spider brake
Pteris tremula R. Br.Australian brake
Pteris vittata L.ladder brake
Pterocarya stenoptera C. DC.Chinese wingnut
Pterospora andromedea Nutt.woodland pinedrops
Pterostegia drymarioides Fisch. & C.A. Mey.woodland pterostegia
Puccinellia lemmonii (Vasey) Scribn.Lemmon's alkaligrass
Puccinellia nuttalliana (Schult.) Hitchc.Nuttall's Alkaligrass
Puccinellia parishii Hitchc.bog alkaligrass
Puccinellia simplex Scribn.California alkaligrass
Pulicaria paludosa LinkSpanish false fleabane
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 coccinea M. Roem.scarlet firethorn
Pyracantha crenulata (D. Don) Roem.Nepalese firethorn
Pyracantha fortuneana (Maxim.) LiChinese firethorn
Pyracantha koidzumii (Hayata) RehderFormosa firethorn
Pyrola asarifolia Michx.Liverleaf Wintergreen
Pyrola minor L.snowline wintergreen
Pyrola picta Sm.whiteveined wintergreen
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 cedrosensis C.H. Mull.Cedros Island 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 engelmannii GreeneEngelmann oak
Quercus garryana Douglas ex Hook.Oregon White Oak
Quercus hemisphaerica W. Bartram ex Willd.Sand Laurel Oak
Quercus ilex L.holly oak
Quercus john-tuckeri Nixon & C.H. Mull.Tucker oak
Quercus kelloggii NewberryCalifornia Black Oak
Quercus lobata Néevalley oak
Quercus pacifica Nixon & C.H. Mull.Channel Island Scrub Oak
Quercus palmeri Engelm.Palmer oak
Quercus parvula Greenecoast oak
Quercus tomentella Engelm.Island Live Oak
Quercus turbinella GreeneSonoran scrub oak
Quercus vacciniifolia Kellogghuckleberry oak
Quercus wislizeni A. DC.interior live oak
Quincula lobata (Torr.) Raf.Chinese lantern
Rafinesquia californica Nutt.California plumeseed
Rafinesquia neomexicana A. GrayNew Mexico plumeseed
Raillardella argentea (A. Gray) A. GraySilky Raillardella
Ranunculus alismifolius Geyer ex Benth.plantainleaf buttercup
Ranunculus aquatilis L.white water crowfoot
Ranunculus californicus Benth.California buttercup
Ranunculus canus Benth.Sacramento Valley buttercup
Ranunculus cymbalaria PurshAlkali Buttercup
Ranunculus eschscholtzii Schltdl.Eschscholtz's Buttercup
Ranunculus flammula L.greater creeping spearwort
Ranunculus glaberrimus Hook.sagebrush buttercup
Ranunculus hebecarpus Hook. & Arn.delicate buttercup
Ranunculus muricatus L.spinyfruit buttercup
Ranunculus occidentalis Nutt.western buttercup
Ranunculus repens L.creeping buttercup
Ranunculus sceleratus L.cursed buttercup
Ranunculus trichophyllus Chaixthreadleaf crowfoot
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
Ratibida columnifera (Nutt.) Wooton & Standl.Upright Prairie Coneflower
Reseda alba L.white upright mignonette
Reseda lutea L.yellow mignonette
Reseda luteola L.weld
Reseda odorata L.garden mignonette
Rhamnus crocea Nutt.Redberry Buckthorn
Rhamnus ilicifolia Kellogghollyleaf redberry
Rhamnus pirifolia GreeneIsland Redberry
Rhododendron occidentale (Torr. & A. Gray) A. Graywestern azalea
Rhus aromatica AitonFragrant Sumac
Rhus glabra L.Smooth Sumac
Rhus integrifolia (Nutt.) W.H. Brewer & S. Watsonlemonade sumac
Rhus ovata S. Watsonsugar sumac
Rhus trilobata Nutt.Skunkbush Sumac
Ribes amarum McClatchiebitter gooseberry
Ribes aureum PurshGolden Currant
Ribes californicum Hook. & Arn.hillside gooseberry
Ribes canthariforme WigginsMoreno Currant
Ribes cereum Douglaswax currant
Ribes divaricatum DouglasSpreading Gooseberry
Ribes indecorum Eastw.whiteflower currant
Ribes inerme Rydb.whitestem gooseberry
Ribes lasianthum GreeneAlpine 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 sericeum Eastw.Lucia gooseberry
Ribes speciosum Purshfuchsiaflower gooseberry
Ribes thacherianum (Jeps.) MunzSanta Cruz Gooseberry
Ribes velutinum Greenedesert gooseberry
Ribes viburnifolium A. Grayisland gooseberry
Ribes viscosissimum Purshsticky currant
Ricinus communis L.castorbean
Rigiopappus leptocladus A. Graywireweed
Robinia neomexicana A. GrayNew Mexico locust
Robinia pseudoacacia L.Black Locust
Romneya coulteri Harv.Coulter's Matilija poppy
Romneya trichocalyx Eastw.bristly Matilija poppy
Romulea rosea (L.) Eckl.rosy sandcrocus
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 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 minutifolia Engelm.Baja Rose
Rosa multiflora Thunb.Multiflora Rose
Rosa rubiginosa L.sweetbriar rose
Rosa woodsii Lindl.Woods' Rose
Rostraria cristata (L.) TzvelevMediterranean hairgrass
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 ulmifolius Schottelmleaf blackberry
Rubus ursinus Cham. & Schltdl.California Blackberry
Rudbeckia californica A. GrayCalifornia Coneflower
Rudbeckia hirta L.Black-eyed Susan
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 pulcher L.fiddle dock
Rumex salicifolius Weinm.Willow Dock
Rumex stenophyllus Ledeb.narrowleaf dock
Rupertia physodes (Douglas ex Hook.) J. GrimesForest Scurfpea
Rupertia rigida (Parish) J. GrimesParish's California Tea
Ruppia cirrhosa (Petagna) Grandespiral ditchgrass
Ruppia maritima L.widgeongrass
Ruta chalepensis L.fringed rue
Ruta graveolens L.common rue
Rytidosperma biannulare (Zotov) Connor & Edgarwallaby grass
Sabulina rubella (Wahlenb.) Dillenb. & KadereitBeautiful Sandwort
Sagina apetala Ard.annual pearlwort
Sagina decumbens (Elliott) Torr. & A. Graytrailing pearlwort

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

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