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5099 Plants Found

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Ordered by scientific name.

Scientific NameCommon NameMap‡
Packera multilobata (Torr. & A. Gray ex A. Gray) W.A. Weber & Á. LöveLobeleaf Groundsel
Packera neomexicana (A. Gray) W.A. Weber & Á. LöveNew Mexico groundsel
Packera quercetorum (Greene) C. JeffreyOak Creek ragwort
Packera thurberi (A.Gray) B.L.TurnerThreetooth Ragwort
Packera werneriifolia (A. Gray) W.A. Weber & Á. LöveHoary Groundsel
Paeonia californica Nutt.California peony
Palafoxia arida B.L. Turner & Morrisdesert palafox
Panicum antidotale Retz.blue panicum
Panicum bulbosum KunthBulb Panicgrass
Panicum capillare L.Witchgrass
Panicum coloratum L.kleingrass
Panicum dichotomiflorum Michx.Fall Panicgrass
Panicum hallii VaseyHall's panicgrass
Panicum hillmanii ChaseHillman's panicgrass
Panicum hirticaule J. PreslMexican panicgrass
Panicum miliaceum L.proso millet
Panicum mohavense J. ReederMojave Panicgrass
Panicum urvilleanum Kunthdesert panicgrass
Panicum virgatum L.Switchgrass
Papaver californicum A. Graywestern poppy
Papaver rhoeas L.corn poppy
Papaver somniferum L.opium poppy
Pappophorum vaginatum Buckleywhiplash pappusgrass
Pappostipa speciosa (Trin. & Rupr.) Romasch.Desert Needlegrass
Parapholis incurva (L.) C.E. HubbardCurved Sicklegrass
Paraserianthes lophantha (Willd.) I.C. Nielsenplume albizia
Parietaria judaica L.spreading pellitory
Parietaria pensylvanica Muhl. ex Willd.Pennsylvania Pellitory
Parkinsonia aculeata L.Jerusalem Thorn
Parkinsonia florida (Benth. ex A. Gray) S. Watsonblue paloverde
Parkinsonia microphylla Torr.yellow paloverde
Parnassia cirrata PiperSan Bernardino Grass Of Parnassus
Parnassia palustris L.marsh grass of Parnassus
Parthenice mollis A. Grayannual monsterwort
Parthenium confertum A. GrayGray's feverfew
Parthenium incanum KunthMariola
Parthenocissus vitacea (Knerr) Hitchc.Woodbine
Pascopyrum smithii (Rydb.) Á. LöveWestern Wheatgrass
Paspalum convexum Humb. & Bonpl. ex FlueggéLatin American Crowngrass
Paspalum dilatatum Poir.dallisgrass
Paspalum distichum L.knotgrass
Paspalum notatum FlueggéBahiagrass
Paspalum setaceum Michx.thin paspalum
Paspalum urvillei Steud.Vasey's grass
Paspalum vaginatum Sw.seashore paspalum
Paspalum virletii Fourn.Virlet's paspalum
Passiflora arida (Mast. & Rose) KillipDesert Passionflower
Passiflora arizonica (Killip) D.H. GoldmanArizona Passionflower
Passiflora bryonioides KunthCupped Passionflower
Passiflora caerulea L.bluecrown passionflower
Passiflora mexicana Juss.Mexican passionflower
Pastinaca sativa L.Wild Parsnip
Paxistima myrsinites (Pursh) Raf.Oregon boxleaf
Pectis angustifolia Torr.lemonscent
Pectis cylindrica (Fernald) Rydb.Sonoran chinchweed
Pectis filipes Harv. & A. Grayfivebract chinchweed
Pectis imberbis A. Graybeardless chinchweed
Pectis linearifolia Urb.Florida chinchweed
Pectis linifolia L.romero macho
Pectis longipes A. Graylongstalk chinchweed
Pectis papposa Harv. & A. Graymanybristle chinchweed
Pectis prostrata Cav.Spreading Chinchweed
Pectis rusbyi Greene ex A. GrayRusby's chinchweed
Pectocarya heterocarpa (I.M. Johnst.) I.M. Johnst.Chuckwalla Combseed
Pectocarya linearis (Ruiz & Pav.) DC.sagebrush combseed
Pectocarya penicillata (Hook. & Arn.) A. DC.sleeping combseed
Pectocarya peninsularis I.M. Johnst.peninsular pectocarya
Pectocarya platycarpa (Munz & I.M. Johnst.) Munz & I.M. Johnst.broadfruit combseed
Pectocarya recurvata I.M. Johnst.curvenut combseed
Pectocarya setosa A. Graymoth combseed
Pedicularis centranthera A. Graydwarf lousewort
Pedicularis densiflora Benth. ex Hook.Indian warrior
Pedicularis procera A. Graygiant lousewort
Pedicularis semibarbata A. Graypinewoods lousewort
Pediocactus peeblesianus (Croizat) L.D. BensonNavajo Pincushion Cactus
Pediocactus sileri (Engelm. ex J.M. Coult.) L.D. BensonSiler Pincushion Cactus
Pediomelum aromaticum (Payson) W.A. WeberAromatic Indian Breadroot
Pediomelum californicum (S. Watson) Rydb.California Indian breadroot
Pediomelum castoreum (S. Watson) Rydb.Beaver Indian Breadroot
Pediomelum megalanthum (Wooton & Standl.) Rydb.Intermountain Indian Breadroot
Pediomelum mephiticum (S. Watson) Rydb.Skunktop
Pediomelum pentaphyllum (L.) Rydb.small Indian breadroot
Pediomelum tenuiflorum (Pursh) A.N.EganSlimflower Scurfpea
Peganum harmala L.harmal peganum
Pelargonium grossularioides (L.) L'Hér. ex Aitongooseberry geranium
Pelargonium panduriforme Eckl. & Zeyh.Oakleaf Garden Geranium
Pelargonium quercifolium (L. f.) L'Hér. ex AitonOakleaf Geranium
Pellaea andromedifolia (Kaulf.) Féecoffee cliffbrake
Pellaea atropurpurea (L.) LinkPurple Cliffbrake
Pellaea breweri D.C. EatonBrewer's cliffbrake
Pellaea intermedia Mett. ex Kuhnintermediate cliffbrake
Pellaea mucronata (D.C. Eaton) D.C. Eatonbirdfoot cliffbrake
Pellaea ternifolia (Cav.) LinkTrans-Pecos cliffbrake
Pellaea truncata Gooddingspiny cliffbrake
Pellaea wrightiana Hook.Wright's cliffbrake
Peniocereus greggii (Engelm.) Britton & Rosenightblooming cereus
Peniocereus striatus (Brandegee) BuxbaumGearstem Cactus
Pennellia longifolia (Benth.) Rollinslongleaf mock thelypody
Pennellia micrantha (A. Gray) Nieuwl.mountain mock thelypody
Pennisetum nervosum (Nees) Trin.bentspike fountaingrass
Pennisetum villosum R. Br. ex Fresen.feathertop
Penstemon ×parishii A.GrayBeardtongue
Penstemon albomarginatus M.E. JonesWhitemargin Beardtongue
Penstemon ambiguus Torr.gilia beardtongue
Penstemon angustifolius Nutt. ex PurshBroadbeard Beardtongue
Penstemon barbatus (Cav.) Rothbeardlip penstemon
Penstemon bicolor (Brandegee) Clokey & D.D. KeckPinto Beardtongue
Penstemon caesius A. GraySan Bernardino Beardtongue
Penstemon caespitosus Nutt. ex A. GrayMat Penstemon
Penstemon calcareus BrandegeeLimestone Beardtongue
Penstemon californicus (Munz & I.M. Johnst.) D.D. KeckCalifornia penstemon
Penstemon carnosus PennellFleshy Beardtongue
Penstemon centranthifolius (Benth.) Benth.scarlet bugler
Penstemon clevelandii A. GrayCleveland's beardtongue
Penstemon clutei A. NelsonSunset Crater Beardtongue
Penstemon confusus M.E. JonesOwens Valley Beardtongue
Penstemon dasyphyllus A. GrayCochise beardtongue
Penstemon deaveri Crosswh.Mt. Graham Beardtongue
Penstemon discolor D.D. KeckCataiina Beardtongue
Penstemon distans N.H. HolmgrenMt. Tumbull Beardtongue
Penstemon eatonii A. GrayFirecracker Penstemon
Penstemon fendleri Torr. & A. GrayFendler's Penstemon
Penstemon fruticiformis CovilleDeath Valley Beardtongue
Penstemon grinnellii Eastw.Grinnell's beardtongue
Penstemon heterophyllus Lindl.Bunchleaf Penstemon
Penstemon incertus BrandegeeMojave Beardtongue
Penstemon labrosus (A. Gray) Hook. f.San Gabriel Beardtongue
Penstemon laevis PennellSouthwestern Beardtongue
Penstemon lanceolatus Benth.Lanceleaf Beardtongue
Penstemon linarioides A. Graytoadflax penstemon
Penstemon newberryi A. GrayMountain Pride
Penstemon nudiflorus A. GrayFlagstaff Beardtongue
Penstemon ophianthus PennellCoiled Anther Penstemon
Penstemon pachyphyllus A. Gray ex Rydb.Thickleaf Beardtongue
Penstemon palmeri A. GrayPalmer's Penstemon
Penstemon parryi (A. Gray) A. GrayParry's beardtongue
Penstemon petiolatus BrandegeePetiolate Beardtongue
Penstemon pseudoputus (Crosswh.) N.H. HolmgrenKaibab Plateau Beardtongue
Penstemon pseudospectabilis M.E. Jonesdesert penstemon
Penstemon putus A. NelsonBlack River Beardtongue
Penstemon rostriflorus KelloggBridge penstemon
Penstemon speciosus Douglas ex Lindl.Royal Penstemon
Penstemon spectabilis Thurb. ex A. Grayshowy penstemon
Penstemon stenophyllus (A. Gray) HowellSonoran beardtongue
Penstemon stephensii BrandegeeStephens' Penstemon
Penstemon strictus Benth.Rocky Mountain Penstemon
Penstemon subulatus M.E. JonesHackberry Beardtongue
Penstemon superbus A. Nelsonsuperb beardtongue
Penstemon thompsoniae (A. Gray) Rydb.Thompson's Beardtongue
Penstemon thurberi Torr.Thurber's penstemon
Penstemon utahensis Eastw.Utah Penstemon
Penstemon virgatus A. Grayupright blue beardtongue
Penstemon watsonii A. GrayWatson's Penstemon
Penstemon whippleanus A. GrayWhipple's Penstemon
Pentachaeta aurea Nutt.golden chaetopappa
Pentagramma triangularis "(Kaulf.) Yatsk.goldback fern
Pentzia incana (Thunb.) KuntzeAfrican sheepbush
Pericome caudata A. Graymountain tail-leaf
Perideridia gairdneri (Hook. & Arn.) MathiasGardner's yampah
Perideridia parishii (J.M. Coult. & Rose) A. Nelson & J.F. Macbr.Parish's yampah
Perityle ajoensis T.K. TodsenAjo Rockdaisy
Perityle ciliata (L.H. Dewey) Rydb.Fringed Rockdaisy
Perityle congesta (M.E. Jones) ShinnersGrand Canyon Rockdaisy
Perityle coronopifolia A. Graycrowfoot rockdaisy
Perityle emoryi Torr.Emory's rockdaisy
Perityle gilensis (M.E. Jones) J.F. Macbr.Gila Rockdaisy
Perityle intricata (Brandegee) ShinnersNarrowleaf Laphamia
Perityle lemmonii (A. Gray) J.F. Macbr.Lemmon's rockdaisy
Perityle megalocephala (S. Watson) J.F. Macbr.Nevada Rockdaisy
Perityle saxicola (Eastw.) ShinnersRoosevelt Dam Rockdaisy
Perityle tenella (M.E. Jones) J.F. Macbr.Springdale Rockdaisy
Persicaria amphibia (L.) DelarbreWater Knotweed
Persicaria capitata (Buch.-Ham. ex D.Don) H.GrossPinkhead Smartweed
Persicaria hydropiperoides (Michx.) SmallSwamp Smartweed
Persicaria lapathifolia (L.) DelarbrePale Smartweed
Persicaria maculosa GraySpotted Ladysthumb
Persicaria orientalis (L.) SpachKiss Me Over The Garden Gate
Persicaria punctata (Elliott) SmallDotted Smartweed
Petalonyx linearis Greenenarrowleaf sandpaper plant
Petalonyx nitidus S. WatsonShinyleaf Sandpaper Plant
Petalonyx parryi A. GrayParry's Sandpaper Plant
Petalonyx thurberi A. GrayThurber's sandpaper plant
Peteria thompsoniae S. WatsonThompson's Peteria
Petradoria pumila (Nutt.) GreeneRock Goldenrod
Petrophytum caespitosum (Nutt.) Rydb.mat rockspirea
Petrorhagia dubia (Raf.) G. López & Romohairypink
Petroselinum crispum (Mill.) Nyman ex A.W. HillParsley
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 alba Rydb.white phacelia
Phacelia anelsonii J.F. Macbr.Aven Nelson's Phacelia
Phacelia arizonica A. GrayArizona phacelia
Phacelia austromontana J.T. HowellSouthern Sierra Phacelia
Phacelia barnebyana J.T. HowellBarneby's Phacelia
Phacelia bicolor Torr. ex S. WatsonTwocolor Phacelia
Phacelia bombycina Wooton & Standl.Mangas Spring phacelia
Phacelia brachyloba (Benth.) A. Grayshortlobe phacelia
Phacelia buell-vivariensis N.D. AtwoodBuell Park Phacelia
Phacelia calthifolia BrandCalthaleaf Phacelia
Phacelia campanularia A. GrayDesertbells
Phacelia cephalotes A. GrayVirgin Phacelia
Phacelia cicutaria Greenecaterpillar phacelia
Phacelia ciliata Benth.Great Valley phacelia
Phacelia coerulea GreeneSkyblue Phacelia
Phacelia constancei N.D. AtwoodConstance's Phacelia
Phacelia crenulata Torr. ex S. Watsoncleftleaf wildheliotrope
Phacelia cronquistiana S.L. WelshCronquist's Phacelia
Phacelia cryptantha GreeneHiddenflower Phacelia
Phacelia curvipes Torr. ex S. WatsonWashoe phacelia
Phacelia davidsonii A. GrayDavidson's phacelia
Phacelia demissa A. GrayIntermountain 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 exilis (A. Gray) G.L. LeeTransverse Range Phacelia
Phacelia filiformis BrandNarrow Phacelia
Phacelia fremontii Torr.Fremont's Phacelia
Phacelia furnissii N.D. AtwoodFurniss's Phacelia
Phacelia geraniifolia BrandGeraniumleaf Phacelia
Phacelia glechomifolia A. GrayPennyroyal Leaf Phacelia
Phacelia grandiflora (Benth.) A. Graylargeflower phacelia
Phacelia hastata Douglas ex Lehm.Silverleaf Phacelia
Phacelia heterophylla Purshvarileaf phacelia
Phacelia higginsii N.D. AtwoodHiggins's Phacelia
Phacelia imbricata Greeneimbricate phacelia
Phacelia integrifolia Torr.gypsum phacelia
Phacelia ivesiana Torr.Ives' Phacelia
Phacelia laxiflora J.T. HowellDozing Phacelia
Phacelia lemmonii A. GrayLemmon's Phacelia
Phacelia longipes Torr. ex A. GrayLongstalk Phacelia
Phacelia lyonii (A. Gray) Rydb.Lyon's Phacelia
Phacelia minor (Harv.) Thell.wild canterbury bells
Phacelia mohavensis A. GrayMojave Phacelia
Phacelia mustelina CovilleWeasel Phacelia
Phacelia mutabilis GreeneChangeable Phacelia
Phacelia neglecta M.E. Jonesalkali phacelia
Phacelia pachyphylla A. Grayblacktack phacelia
Phacelia palmeri Torr. ex S. WatsonPalmer's 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 rafaelensis N.D. AtwoodPlateau Phacelia
Phacelia ramosissima Douglas ex Lehm.branching phacelia
Phacelia rotundifolia Torr. ex S. Watsonroundleaf phacelia
Phacelia rupestris Greenerock phacelia
Phacelia saxicola A. GrayStonecrop 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 canariensis L.Annual Canarygrass
Phalaris caroliniana WalterCarolina Canarygrass
Phalaris lemmonii VaseyLemmon's canarygrass
Phalaris minor Retz.littleseed canarygrass
Phalaris paradoxa L.hood canarygrass
Phanerophlebia auriculata Underw.eared veinfern
Phaseolus acutifolius A. Graytepary bean
Phaseolus angustissimus A. Grayslimleaf bean
Phaseolus filiformis Benth.slimjim bean
Phaseolus maculatus Scheelespotted bean
Phaseolus parvulus GreenePinos Altos Mountain bean
Phaseolus pedicellatus Benth.Sonoran Bean
Phaseolus ritensis M.E. JonesSanta Rita Mountain bean
Phemeranthus aurantiacus (Engelm.) Kigerorange fameflower
Phemeranthus brevifolius (Torr.) HershkovitzPygmy Fameflower
Phemeranthus confertiflorus (Greene) HershkovitzNew Mexico fameflower
Phemeranthus humilis (Greene) KigerPinos Altos fameflower
Phemeranthus parvulus (Rose & Standl.) D.J. Ferguson & T.M. Pricetepic flameflower
Phemeranthus validulus (Greene) KigerTusayan Fameflower
Philadelphus argyrocalyx Wootonsilvercup mock orange
Philadelphus maculatus (C.L. Hitchc.) HuSpotted Mock Orange
Philadelphus madrensis Hemsl.desert mountain mock orange
Philadelphus microphyllus A. Graylittleleaf mock orange
Philadelphus pumilus Rydb.Dwarf Mock Orange
Philadelphus serpyllifolius A. Graythymeleaf mock orange
Phleum alpinum L.Alpine Timothy
Phleum pratense L.Timothy
Phlox amabilis BrandArizona Phlox
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 griseola WherryGrayleaf Phlox
Phlox longifolia Nutt.longleaf phlox
Phlox stansburyi (Torr.) A. Hellercold-desert phlox
Phlox tenuifolia E.E. NelsonSanta Catalina Mountain phlox
Phoenix canariensis hort. ex ChabaudCanary Island date palm
Phoenix dactylifera L.date palm
Pholisma arenarium Nutt. ex Hook.desert christmas tree
Pholisma sonorae (Torr. ex A. Gray) Yatsk.sandfood
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 capitellatum Torr. ex Trel.downy 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 cuneifolia (Torr.) Greenewedgeleaf
Phyla lanceolata (Michx.) GreeneLanceleaf Fogfruit
Phyla nodiflora (L.) Greeneturkey tangle fogfruit
Phyllanthus caroliniensis WalterCarolina leaf-flower
Phyllanthus polygonoides Nutt. ex Spreng.smartweed leaf-flower
Phyllodoce breweri (A. Gray) A. Hellerpurple mountainheath
Phyllospadix scouleri Hook.Scouler's surfgrass
Phyllospadix torreyi S. WatsonTorrey's surfgrass
Physalis acutifolia (Miers) Sandw.Sharpleaf Groundcherry
Physalis angulata L.Cutleaf Groundcherry
Physalis caudella Standl.southwestern groundcherry
Physalis crassifolia Benth.yellow nightshade groundcherry
Physalis grisea (Waterf.) M. MartínezStrawberry-Tomato
Physalis hederifolia A. Grayivyleaf groundcherry
Physalis heterophylla NeesClammy Groundcherry
Physalis longifolia Nutt.Longleaf Groundcherry
Physalis philadelphica Lam.Mexican Groundcherry
Physalis pubescens L.Husk Tomato
Physalis subulata Rydb.Chihuahuan groundcherry
Physaria acutifolia Rydb.sharpleaf twinpod
Physaria chambersii RollinsChambers' Twinpod
Physaria fendleri (A.Gray) O'Kane & Al-ShehbazFendler's Bladderpod
Physaria gordonii (A.Gray) O'Kane & Al-ShehbazGordon's Bladderpod
Physaria kingii subsp. kingii (S.Watson) O'Kane & Al-ShehbazKing Bladderpod
Physaria ludoviciana (Nutt.) O'Kane & Al-ShehbazFoothill Bladderpod
Physaria newberryi A. GrayNewberry's Twinpod
Physaria rectipes (Wooton & Standl) O'Kane & Al-ShehbazStraight Bladderpod
Physaria tenella (A.Nelson) O'Kane & Al-ShehbazMoapa Bladderpod
Physocarpus malvaceus (Greene) Kuntzemallow ninebark
Physocarpus monogynus (Torr.) J.M. Coult.mountain ninebark
Phytolacca americana L.American Pokeweed
Phytolacca icosandra L.Tropical Pokeweed
Picea engelmannii Parry ex Engelm.Engelmann Spruce
Pickeringia montana Nutt. ex Torr. & A. Graychaparral pea
Pilostyles thurberi A. GrayThurber's stemsucker
Pilularia americana A. BraunAmerican pillwort
Pinaropappus roseus (Less.) Less.white rocklettuce
Pinus albicaulis Engelm.Whitebark Pine
Pinus arizonica Engelm.Arizona pine
Pinus attenuata Lemmonknobcone pine
Pinus contorta Douglas ex LoudonLodgepole Pine
Pinus coulteri D. DonCoulter pine
Pinus discolor D.K. Bailey & Hawksw.border pinyon
Pinus edulis Engelm.Twoneedle Pinyon
Pinus engelmannii CarrièreApache pine
Pinus flexilis JamesLimber Pine
Pinus halepensis Mill.aleppo pine
Pinus jeffreyi Balf.Jeffrey Pine
Pinus lambertiana DouglasSugar Pine
Pinus leiophylla Schiede & DeppeChihuahuan 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 sabiniana Douglas ex DouglasCalifornia foothill pine
Pinus strobiformis Engelm.southwestern white 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
Piptochaetium fimbriatum (Kunth) Hitchc.pinyon ricegrass
Piptochaetium pringlei (Beal) ParodiPringle's speargrass
Pisonia capitata (S. Watson) Standl.Mexican Devil's-Claws
Pistacia atlantica Desf.Mt. Atlas Mastic Tree
Pistacia chinensis BungeChinese Pistache
Pistia stratiotes L.Water Lettuce
Pisum sativum L.Garden Pea
Pittosporum undulatum Vent.Australian cheesewood
Plagiobothrys acanthocarpus (Piper) I.M. Johnst.adobe popcornflower
Plagiobothrys arizonicus (A. Gray) Greene ex A. GrayArizona popcornflower
Plagiobothrys bracteatus (Howell) I.M. Johnst.Bracted 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 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 pringlei GreenePringle'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 argyrea MorrisSaltmeadow Plantain
Plantago aristata Michx.Largebracted Plantain
Plantago australis Lam.Mexican 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 pusilla Nutt.Dwarf Plantain
Plantago rhodosperma Decne.redseed plantain
Plantago subnuda Pilg.tall coastal plantain
Plantago virginica L.Virginia Plantain
Plantago wrightiana Decne.Wright's plantain
Platanthera elegans Lindl.Hillside Rein Orchid
Platanthera limosa Lindl.Thurber's bog orchid
Platanthera sparsiflora (S. Watson) Schltr.sparse-flowered bog orchid
Platanthera tescamnis Sheviak & W.F. Jenn.Intermountain Bog Orchid
Platanus ×hispanica Mill. ex Münchh.London Planetree
Platanus racemosa Nutt.California sycamore
Platanus wrightii S. WatsonArizona sycamore
Platystemon californicus Benth.Creamcups
Plecostachys serpyllifolia (P.J. Bergius) Hilliard & B.L. Burttpetite licorice
Plectocephalus americanus (Nutt.) D.DonAmerican Star-thistle
Plectocephalus rothrockii (Greenm.) D.J.N.HindRothrock's Knapweed
Plectritis ciliosa (Greene) Jeps.longspur seablush
Plectritis congesta (Lindl.) DC.shortspur seablush
Plectritis macrocera Torr. & A. GrayLonghorn Plectritis
Pleiacanthus spinosus (Nutt.) Rydb.Thorn Skeletonweed
Pleopeltis riograndensis (T. Wendt) Andrews & WindhamRio Grande scaly polypody
Pleuraphis mutica Buckleytobosagrass
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
Plumbago zeylanica L.Doctorbush
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 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 trivialis L.Rough Bluegrass
Poa wheeleri VaseyWheeler's Bluegrass
Podistera nevadensis (A. Gray) S. WatsonNevada Podistera
Pogogyne abramsii J.T. HowellSan Diego Mesamint
Pogogyne nudiuscula A. GrayOtay Mesamint
Polanisia dodecandra (L.) DC.redwhisker clammyweed
Polanisia uniglandulosa (Cav.) DC.Mexican clammyweed
Polemonium foliosissimum A. Graytowering Jacob's-ladder
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
Polygonatum biflorum (Walter) Elliottsmooth Solomon's seal
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
Polypodium californicum Kaulf.California polypody
Polypodium calirhiza S. Whitmore & A.R. Sm.nested polypody
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
Polystemma cordifolium (A.Gray) McDonnell & FishbeinSonoran Milkvine
Polystichum imbricans (D.C. Eaton) D.H. Wagnernarrowleaf swordfern
Polystichum kruckebergii W.H. WagnerKruckeberg's Hollyfern
Polystichum lonchitis (L.) Rothnorthern hollyfern
Polystichum munitum (Kaulf.) C. Preslwestern swordfern
Polystichum scopulinum (D.C. Eaton) MaxonMountain Hollyfern
Pomaria jamesii (Torr. & A. Gray) Walp.James' holdback
Pontederia cordata L.Pickerelweed
Pontederia crassipes Mart.Common Water Hyacinth
Populus ×canadensis MoenchCarolina Poplar
Populus ×jackii Balm-of-Gilead
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

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

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