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10025 Plants Found

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Ordered by scientific name.

Scientific NameCommon NameMap‡
Gossypium hirsutum L.Upland Cotton
Gossypium thurberi TodaroThurber's cotton
Graphephorum canescens (Buckley) Röser & TkachTall Trisetum
Graptopetalum bartramii RosePatagonia Mountain leatherpetal
Graptopetalum rusbyi (Greene) RoseSan Francisco River leatherpetal
Gratiola ebracteata Benth. ex A. DC.bractless hedgehyssop
Gratiola heterosepala H. Mason & Bacig.Boggs Lake Hedgehyssop
Gratiola neglecta Torr.clammy hedgehyssop
Grayia spinosa (Hook.) Moq.spiny hopsage
Greeneocharis circumscissa (Hook. & Arn.) Rydb.Cushion Cryptantha
Grevillea robusta A. Cunn. ex R. Br.silkoak
Grindelia arizonica A. GrayArizona gumweed
Grindelia camporum GreeneGreat Valley gumweed
Grindelia ciliata (Nutt.) Spreng.Spanish Gold
Grindelia decumbens GreeneReclined Gumweed
Grindelia fastigiata GreenePointed Gumweed
Grindelia grandiflora Hook.manyray gumweed
Grindelia havardii Steyerm.Havard's gumweed
Grindelia hirsutula Hook. & Arn.hairy gumweed
Grindelia laciniata Rydb.Cutleaf Gumweed
Grindelia lanceolata Nutt.narrowleaf gumweed
Grindelia nana Nutt.Idaho gumweed
Grindelia oxylepis GreeneMexican gumweed
Grindelia scabra Greenerough gumweed
Grindelia squarrosa (Pursh) DunalCurlycup Gumweed
Grindelia subalpina GreeneSubalpine Gumweed
Grusonia aggeria (B.E. Ralston & Hilsenb.) E.F. AndersonBig Bend pricklypear
Grusonia clavata (Engelm.) H. Rob.club cholla
Grusonia emoryi (Engelm.) Pinkavadevil cholla
Grusonia grahamii (Engelm.) H. Rob.Graham's pricklypear
Grusonia kunzei (Rose) Pinkavadevil's cholla
Grusonia parishii (Orcutt) Pinkavamatted cholla
Grusonia pulchella (Engelm.) H. Rob.Sagebrush Cholla
Grusonia schottii (Engelm.) H. Rob.Big Bend pricklypear
Guaiacum angustifolium Engelm.Texas lignum-vitae
Guardiola platyphylla A. GrayApache plant
Guilleminea densa (Humb. & Bonpl. ex Schult.) Moq.Small Matweed
Guizotia abyssinica (L. f.) Cass.ramtilla
Gutierrezia arizonica (A. Gray) M.A. LaneArizona snakeweed
Gutierrezia californica (DC.) Torr. & A. GraySan Joaquin snakeweed
Gutierrezia elegans Al Schneid. & P. LyonLone Mesa Snakeweed
Gutierrezia microcephala (DC.) A. Graythreadleaf snakeweed
Gutierrezia petradoria (S.L. Welsh & Goodrich) S.L. WelshSan Pedro Snakeweed
Gutierrezia sarothrae (Pursh) Britton & Rusbybroom snakeweed
Gutierrezia serotina Greenelate snakeweed
Gutierrezia sphaerocephala A. Grayroundleaf snakeweed
Gutierrezia texana (DC.) Torr. & A. GrayTexas snakeweed
Gutierrezia wrightii A. GrayWright's Snakeweed
Gymnocarpium disjunctum (Rupr.) ChingPacific oakfern
Gymnocarpium dryopteris (L.) Newmanwestern oakfern
Gymnopogon ambiguus (Michx.) Britton, Sterns & Poggenb.Bearded Skeletongrass
Gymnosperma glutinosum (Spreng.) Less.gumhead
Gymnosteris nudicaulis (Hook. & Arn.) GreeneNakedstem Gymnosteris
Gymnosteris parvula A. HellerSmallflower Gymnosteris
Gypsophila elegans M. Bieb.showy baby's-breath
Gypsophila paniculata L.baby's breath
Gypsophila scorzonerifolia Ser.garden baby's-breath
Hackelia amethystina J.T. HowellAmethyst Stickseed
Hackelia besseyi (Rydb.) J.L. GentryBessey's Stickseed
Hackelia brevicula (Jeps.) J.L. GentryPoison Canyon Stickseed
Hackelia californica (A. Gray) I.M. Johnst.California Stickseed
Hackelia ciliata (Douglas ex Lehm.) I.M. Johnst.Okanogan stickseed
Hackelia cinerea (Piper) I.M. Johnst.gray stickseed
Hackelia cronquistii J.L. GentryCronquist's Stickseed
Hackelia cusickii (Piper) BrandCusick's stickseed
Hackelia davisii CronquistDavis' Stickseed
Hackelia deflexa (Wahlenb.) Opiznodding stickseed
Hackelia diffusa (Lehm.) I.M. Johnst.spreading stickseed
Hackelia floribunda (Lehm.) I.M. Johnst.manyflower stickseed
Hackelia gracilenta (Eastw.) I.M. Johnst.Mesa Verde Stickseed
Hackelia hirsuta (Wooton & Standl.) I.M. Johnst.New Mexico Stickseed
Hackelia hispida (A. Gray) I.M. Johnst.showy stickseed
Hackelia ibapensis L.M. Shultz & J.S. ShultzIbapah Tickweed
Hackelia micrantha (Eastw.) J.L. GentryJessica sticktight
Hackelia mundula (Jeps.) FerrisPink Stickseed
Hackelia nervosa (Kellogg) I.M. Johnst.Sierra Stickseed
Hackelia ophiobia R.L. CarrOwyhee River Stickseed
Hackelia patens (Nutt.) I.M. Johnst.Spotted Stickseed
Hackelia pinetorum (Greene ex A. Gray) I.M. Johnst.Livermore stickseed
Hackelia setosa (Piper) I.M. Johnst.Bristly Stickseed
Hackelia sharsmithii I.M. Johnst.Sharsmith's Stickseed
Hackelia ursina (Greene ex A. Gray) I.M. Johnst.Chihuahuan stickseed
Hackelia velutina (Piper) I.M. Johnst.Velvet Stickseed
Hackelia venusta (Piper) H. St. JohnLesser Showy Stickseed
Hackelochloa granularis (L.) KuntzePitscale Grass
Hainardia cylindrica (Willd.) GreuterBarbgrass
Halenia rothrockii A. GrayMt. Graham Spurred-Gentian
Halimodendron halodendron (Pall.) Vosscommon salttree
Halimolobos diffusa (A. Gray) O.E. Schulzspreading fissurewort
Halimolobos jaegeri (Munz) RollinsMojave Halimolobos
Halogeton glomeratus (M. Bieb.) C.A. Mey.saltlover
Hamamelis virginiana L.American witchhazel
Haploesthes greggii A. Grayfalse broomweed
Haplophyton crooksii (L.D. Benson) L.D. Bensoncockroachplant
Harbouria trachypleura (A. Gray) J.M. Coult. & RoseWhiskbroom Parsley
Harpagonella palmeri A. GrayPalmer's grapplinghook
Harrimanella stelleriana (Pall.) CovilleAlaska bellheather
Hartmaniella sierrae (Rabeler & R.L.Hartm.) M.L.ZhangPseudostellaria
Hastingsia alba (Durand) S. WatsonWhite Rushlily
Hazardia brickellioides (S.F. Blake) W.D. ClarkBrickellbush Goldenweed
Hazardia cana (A. Gray) GreeneIsland Hazardia
Hazardia orcuttii (A. Gray) GreeneOrcutt's Bristleweed
Hazardia squarrosa (Hook. & Arn.) Greenesawtooth goldenbush
Hazardia stenolepis (H.M. Hall) Hooverserpentine bristleweed
Hazardia whitneyi (A. Gray) GreeneWhitney's bristleweed
Hebecarpa barbeyana (Chodat) J.R.AbbottBlue Milkwort
Hebecarpa macradenia (A.Gray) J.R.AbbottGlandleaf Milkwort
Hebecarpa obscura (Benth.) J.R.AbbottVelvetseed Milkwort
Hebecarpa ovatifolia (A.Gray) J.R.AbbottEggleaf Milkwort
Hebecarpa palmeri (S.Watson) J.R.AbbottPalmer's Milkwort
Hebecarpa rectipilis (S.F.Blake) J.R.AbbottNew Mexico Milkwort
Hecastocleis shockleyi A. GrayPrickleleaf
Hechtia texensis S. WatsonTexas false agave
Hedeoma acinoides Scheeleslender false pennyroyal
Hedeoma apiculata W.S. StewartMcKittrick's false pennyroyal
Hedeoma costata A. Grayribbed false pennyroyal
Hedeoma dentata Torr.dentate false pennyroyal
Hedeoma diffusa GreeneSpreading False Pennyroyal
Hedeoma drummondii Benth.Drummond's false pennyroyal
Hedeoma hispida PurshRough False Pennyroyal
Hedeoma hyssopifolia A. Grayaromatic false pennyroyal
Hedeoma mollis Torr.softhair false pennyroyal
Hedeoma nana (Torr.) Briq.dwarf false pennyroyal
Hedeoma oblongifolia (A. Gray) A. Helleroblongleaf false pennyroyal
Hedeoma pilosa IrvingOld Blue False Pennyroyal
Hedeoma plicata Torr.veiny false pennyroyal
Hedeoma pulcherrima Wooton & Standl.White Mountain False Pennyroyal
Hedeoma pulegioides (L.) Pers.American false pennyroyal
Hedeoma reverchonii (A. Gray) A. GrayReverchon's False Pennyroyal
Hedeoma todsenii IrvingTodsen's false pennyroyal
Hedera helix L.English Ivy
Hedera hibernica (G. Kirchn.) BeanAtlantic Ivy
Hedlundia hybrida (L.) Sennikov & KurttoOakleaf Mountain Ash
Hedosyne ambrosiifolia (A. Gray) Strotherragged marsh-elder
Hedyotis greenei (A. Gray) W.H. LewisGreene's starviolet
Hedypnois cretica (L.) Dum. Cours.Cretanweed
Hedysarum alpinum L.alpine sweetvetch
Hedysarum boreale Nutt.Utah sweetvetch
Hedysarum occidentale Greenewestern sweetvetch
Hedysarum sulphurescens Rydb.white sweetvetch
Heimia salicifolia (Kunth) LinkShrubby Yellowcrest
Helenium amarum (Raf.) H. RockSneezeweed
Helenium arizonicum S.F. BlakeArizona Sneezeweed
Helenium autumnale L.common sneezeweed
Helenium bigelovii A. GrayBigelow's sneezeweed
Helenium elegans DC.pretty sneezeweed
Helenium microcephalum DC.smallhead sneezeweed
Helenium puberulum DC.Rosilla
Helenium thurberi A. GrayThurber's sneezeweed
Helianthella californica A. GrayCalifornia helianthella
Helianthella microcephala (A. Gray) A. GrayPurpledisk Helianthella
Helianthella parryi A. GrayParry's Dwarf-Sunflower
Helianthella quinquenervis (Hook.) A. Grayfivenerve helianthella
Helianthella uniflora (Nutt.) Torr. & A. Grayoneflower helianthella
Helianthus annuus L.Common Sunflower
Helianthus anomalus S.F. BlakeWestern Sunflower
Helianthus arizonensis R.C. Jacks.Arizona Sunflower
Helianthus bolanderi A. Grayserpentine sunflower
Helianthus californicus DC.California sunflower
Helianthus ciliaris DC.Texas Blueweed
Helianthus cusickii A. GrayCusick's sunflower
Helianthus gracilentus A. Grayslender sunflower
Helianthus grosseserratus M. MartensSawtooth Sunflower
Helianthus laciniatus A. Grayalkali sunflower
Helianthus maximiliani Schrad.Maximilian Sunflower
Helianthus neglectus Heiserneglected sunflower
Helianthus niveus (Benth.) Brandegeeshowy sunflower
Helianthus nuttallii Torr. & A. GrayNuttall's Sunflower
Helianthus paradoxus Heiserparadox sunflower
Helianthus pauciflorus Nutt.Stiff Sunflower
Helianthus petiolaris Nutt.Prairie Sunflower
Helianthus praetermissus E.E. WatsonNew Mexico Sunflower
Helianthus pumilus Nutt.Little Sunflower
Helianthus tuberosus L.Jerusalem Artichoke
Helichrysum petiolare Hilliard & B.L. Burttlicorice-plant
Helictotrichon mortonianum (Scribn.) Henr.Morton's Alpine Oatgrass
Heliomeris hispida (A. Gray) Cockerellrough false goldeneye
Heliomeris longifolia (B.L. Rob. & Greenm.) Cockerelllongleaf false goldeneye
Heliomeris multiflora Nutt.showy goldeneye
Heliomeris soliceps (Barneby) YatesTropical False Goldeneye
Heliopsis helianthoides (L.) SweetSmooth Oxeye
Heliopsis parvifolia A. Graymountain oxeye
Heliotropium amplexicaule VahlClasping Heliotrope
Heliotropium confertifolium (Torr.) Torr. ex A. Grayleafy heliotrope
Heliotropium convolvulaceum (Nutt.) A. Grayphlox heliotrope
Heliotropium curassavicum L.salt heliotrope
Heliotropium europaeum L.European heliotrope
Heliotropium fruticosum L.Key West heliotrope
Heliotropium glabriusculum (Torr.) A. Graygreeneye heliotrope
Heliotropium greggii Torr.fragrant heliotrope
Heliotropium molle (Torr.) I.M. Johnst.soft heliotrope
Heliotropium tenellum (Nutt.) Torr.pasture heliotrope
Heliotropium torreyi I.M. Johnst.slimleaf heliotrope
Hemarthria altissima (Poir.) Stapf & C.E. Hubbardlimpograss
Hemerocallis fulva (L.) L.orange daylily
Hemionitis bridgesii (Hook.) ChristenhBridges' Cliffbrake
Hemionitis gastonyi (Windham) Christenh.Gastony's Cliffbrake
Hemionitis gracillima (D.C.Eaton)Lace Lipfern
Hemionitis jonesii (Maxon) Christenh.Jones' False Cloak Fern
Hemionitis lyngholmii (Windham) Christenh.Lyngholm's Cliffbrake
Hemionitis ovata (Desv.) Christenh.Ovateleaf Cliffbrake
Hemitomes congestum A. Grayconeplant
Hemizonella minima (A. Gray) A. Grayopposite-leaved tarweed
Hemizonia congesta DC.hayfield tarweed
Henrya insularis Nees ex Benth.Island Renegade
Heracleum mantegazzianum Sommier & LevierGiant Hogweed
Heracleum maximum W. BartramCommon Cowparsnip
Herissantia crispa (L.) Briz.bladdermallow
Hermannia pauciflora S. WatsonSanta Catalina burstwort
Hermannia texana A. GrayTexas burstwort
Herniaria glabra L.smooth rupturewort
Herniaria hirsuta L.hairy rupturewort
Hesperaloe funifera (Lem.) Trel.New Mexico False Yucca
Hesperaloe parviflora (Torr.) J.M. Coult.Redflower False Yucca
Hesperevax acaulis (Kellogg) Greenestemless dwarf-cudweed
Hesperevax caulescens (Benth.) A. Graydwarf dwarf-cudweed
Hesperevax sparsiflora (A. Gray) Greeneerect dwarf-cudweed
Hesperis matronalis L.Dame's Rocket
Hesperocallis undulata A. Graydesert lily
Hesperochiron californicus (Benth.) S. WatsonCalifornia hesperochiron
Hesperochiron pumilus (Douglas ex Griseb.) Porterdwarf hesperochiron
Hesperocnide tenella Torr.western stingingnettle
Hesperocyparis arizonica (Greene) BartelArizona cypress
Hesperocyparis bakeri (Jeps.) BartelModoc Cypress
Hesperocyparis forbesii (Jeps.) Barteltecate cypress
Hesperocyparis glabra (Sudw.) BartelSmooth Arizona Cypress
Hesperocyparis macnabiana (A. Murray bis) BartelMcNab's cypress
Hesperocyparis nevadensis (Abrams) BartelPaiute Cypress
Hesperocyparis sargentii (Jeps.) BartelSargent's cypress
Hesperocyparis stephensonii (C.B. Wolf) BartelCuyamaca Cypress
Hesperostipa comata (Trin. & Rupr.) BarkworthNeedle-and-Thread Grass
Hesperostipa neomexicana (Thurb. ex J.M. Coult.) BarkworthNew Mexico feathergrass
Hesperostipa spartea (Trin.) BarkworthPorcupinegrass
Hesperoyucca newberryi (McKelvey) ClaryNewberry's Yucca
Hesperoyucca whipplei (Torr.) Bakerchaparral yucca
Heteranthera dubia (Jacq.) MacMill.grassleaf mudplantain
Heteranthera limosa (Sw.) Willd.blue mudplantain
Heteranthera mexicana S. WatsonMexican mudplantain
Heteranthera reniformis Ruiz & Pav.kidneyleaf mudplantain
Heteranthera rotundifolia (Kunth) Griseb.roundleaf mudplantain
Heterocodon rariflorum Nutt.rareflower heterocodon
Heteromeles arbutifolia (Lindl.) M. Roem.toyon
Heteropogon contortus (L.) P. Beauv. ex Roem. & Schult.Tanglehead
Heteropogon melanocarpus (Elliott) Elliott ex Benth.sweet tanglehead
Heterosperma pinnatum Cav.wingpetal
Heterotheca barbata (Rydb.) SempleSpokane false goldenaster
Heterotheca canescens (DC.) Shinnershoary false goldenaster
Heterotheca fulcrata (Greene) Shinnersrockyscree false goldenaster
Heterotheca grandiflora Nutt.telegraphweed
Heterotheca jonesii (S.F. Blake) S.L. Welsh & N.D. AtwoodJones' False Goldenaster
Heterotheca marginata SempleSonora False Goldenaster
Heterotheca oregona (Nutt.) ShinnersOregon false goldenaster
Heterotheca pumila (Greene) SempleAlpine False Goldenaster
Heterotheca rutteri (Rothr.) ShinnersRutter's false goldenaster
Heterotheca sessiliflora (Nutt.) Shinnerssessileflower false goldenaster
Heterotheca shevockii (Semple) SempleKern Canyon False Goldenaster
Heterotheca stenophylla (A. Gray) Shinnersstiffleaf false goldenaster
Heterotheca subaxillaris (Lam.) Britton & RusbyCamphorweed
Heterotheca villosa (Pursh) Shinnershairy false goldenaster
Heterotheca viscida (A. Gray) V.L. Harmscliff false goldenaster
Heterotheca zionensis SempleZion false goldenaster
Heuchera abramsii Rydb.San Gabriel Alumroot
Heuchera bracteata (Torr.) Ser.Bracted Alumroot
Heuchera brevistaminea WigginsLaguna Mountain Alumroot
Heuchera caespitosa Eastw.Tufted Alumroot
Heuchera chlorantha PiperTall Alumroot
Heuchera cylindrica Douglas ex Hook.roundleaf alumroot
Heuchera eastwoodiae Rosend., Butters & LakelaSenator Mine Alumroot
Heuchera glabra Willd. ex Roem. & Schult.alpine heuchera
Heuchera glomerulata Rosend., Butters & LakelaChiricahua Mountain Alumroot
Heuchera grossulariifolia Rydb.gooseberryleaf alumroot
Heuchera hallii A. GrayFront Range Alumroot
Heuchera hirsutissima Rosend., Butters & LakelaShaggyhair Alumroot
Heuchera merriamii Eastw.Merriam's Alumroot
Heuchera micrantha Douglas ex Lindl.crevice alumroot
Heuchera novomexicana WheelockNew Mexico alumroot
Heuchera parishii Rydb.Mill Creek Alumroot
Heuchera parvifolia Nutt. ex Torr. & A. GrayLittleleaf Alumroot
Heuchera pulchella Wooton & Standl.Sandia Mountain Alumroot
Heuchera rubescens Torr.Pink Alumroot
Heuchera sanguinea Engelm.coralbells
Heuchera woodsiaphila P.J. AlexanderCapitan Mountains Alumroot
Heuchera wootonii Rydb.White Mountain Alumroot
Hexalectris arizonica (S.Watson) A.H. Kenn. & L.E. Watsonspiked crested coralroot
Hexalectris colemanii (Catling) A.H.Kenn. & L.E.WatsonColeman's crested coralroot
Hexalectris grandiflora (A. Rich. & Galeotti) L.O. Williamslargeflower crested coralroot
Hexalectris nitida L.O. WilliamsGlass Mountain crested coralroot
Hexalectris revoluta CorrellChisos Mountain crested coralroot
Hexalectris spicata (Walter) Barnhartspiked crested coralroot
Hexalectris warnockii Ames & CorrellTexas crested coralroot
Hexasepalum teres (Walter) J.H.Kirkbr.Poorjoe
Hibiscus biseptus S. WatsonArizona rosemallow
Hibiscus coulteri Harv. ex A. Graydesert rosemallow
Hibiscus denudatus Benth.paleface
Hibiscus martianus Zucc.heartleaf rosemallow
Hibiscus moscheutos L.Crimsoneyed Rosemallow
Hibiscus moscheutos subsp. lasiocarpos (Cav.) O.J.Blanch.Hairy-Fruited Hibiscus
Hibiscus rosa-sinensis L.shoeblackplant
Hibiscus syriacus L.Rose of Sharon
Hibiscus trionum L.flower of an hour
Hieracium albiflorum Hook.white hawkweed
Hieracium argutum Nutt.southern hawkweed
Hieracium caespitosum Dumort.meadow hawkweed
Hieracium carneum GreeneHuachuca hawkweed
Hieracium fendleri Sch. Bip.yellow hawkweed
Hieracium glomeratum Froel.queen-devil hawkweed
Hieracium greenei A. GrayGreene's Hawkweed
Hieracium horridum Fr.prickly hawkweed
Hieracium lachenalii C.C. Gmel.common hawkweed
Hieracium laevigatum Willd.Smooth Hawkweed
Hieracium pilosella L.mouseear hawkweed
Hieracium pringlei A. GrayPringle's hawkweed
Hieracium schultzii Fr.roughstem hawkweed
Hieracium scouleri Hook.Scouler's Woollyweed
Hieracium triste Willd. ex Spreng.woolly hawkweed
Hieracium umbellatum L.Canada Hawkweed
Hierochloe hirta (Schrank) BorbásNorthern Sweetgrass
Hilaria belangeri (Steud.) NashCurly-mesquite
Hilaria jamesii (Torr.) Benth.James' Galleta
Hilaria swallenii CorySwallen's curly-mesquite
Hippophae rhamnoides L.Seaberry
Hippuris montana Ledeb.mountain mare's-tail
Hippuris vulgaris L.common mare's-tail
Hirschfeldia incana (L.) Lagr.-Foss.shortpod mustard
Hoffmannseggia drepanocarpa A. Graysicklepod holdback
Hoffmannseggia glauca (Ortega) EifertIndian rushpea
Hoffmannseggia microphylla Torr.wand holdback
Hoffmannseggia oxycarpa Benth. ex A. Graysharppod rushpea
Hoffmannseggia repens (Eastw.) CockerellCreeping Nicker
Hoita macrostachya (DC.) Rydb.large leather-root
Hoita orbicularis (Lindl.) Rydb.roundleaf leather-root
Holacantha stewartii C.H. Mull.Stewart's crucifixionthorn
Holcus lanatus L.Common Velvetgrass
Holcus mollis L.creeping velvetgrass
Hollisteria lanata S. Watsonfalse spikeflower
Holmgrenanthe petrophila (Coville & Morton) ElisensRocklady
Holocarpha heermannii (Greene) D.D. KeckHeermann's Tarweed
Holocarpha obconica (J.C. Clausen & D.D. Keck) D.D. KeckSan Joaquin tarweed
Holocarpha virgata (A. Gray) D.D. Keckyellowflower tarweed
Holodiscus discolor (Pursh) Maxim.oceanspray
Holodiscus dumosus (Nutt. ex Hook.) A. HellerRockspirea
Holosteum umbellatum L.Jagged Chickweed
Hopia obtusa (Kunth) Zuloaga & MorroneVine Mesquite
Hordeum arizonicum CovasArizona barley
Hordeum brachyantherum Nevskimeadow barley
Hordeum bulbosum L.Bulbous Barley
Hordeum depressum (Scribn. & J.G. Sm.) Rydb.dwarf barley
Hordeum intercedens Nevskibobtail barley
Hordeum jubatum L.Foxtail Barley
Hordeum marinum Huds.seaside barley
Hordeum murinum L.mouse barley
Hordeum pusillum Nutt.Little Barley
Hordeum vulgare L.common barley
Horkelia californica Cham. & Schltdl.California horkelia
Horkelia fusca Lindl.Pinewoods Horkelia
Horkelia rydbergii ElmerRydberg's horkelia
Horkelia tridentata Torr.threetooth horkelia
Hornungia procumbens (L.) Hayekprostrate hutchinsia
Horsfordia alata (S. Watson) A. Graypink velvetmallow
Horsfordia newberryi (S. Watson) A. GrayNewberry's velvetmallow
Hosackia alamosana RoseSonoran Bird's-foot Trefoil
Hosackia crassifolia Benth.Big Deervetch
Hosackia incana Torr.Woolly Bird's-foot Trefoil
Hosackia oblongifolia Benth.Streambank Bird's-Foot Trefoil
Hosackia pinnata (Hook.) AbramsMeadow Bird's-Foot Trefoil
Houstonia acerosa (A. Gray) A. Gray ex Benth. & Hook. f.needleleaf bluet
Houstonia humifusa (A. Gray) A. Graymatted bluet
Houstonia pusilla Schoepftiny bluet
Houstonia rubra Cav.red bluet
Houstonia wrightii A. Graypygmy bluet
Howellia aquatilis A. Graywater howellia
Howelliella ovata (Eastw.) Rothm.ovateleaf snapdragon
Hulsea algida A. GrayPacific Hulsea
Hulsea californica Torr. & A. GraySan Diego Alpinegold
Hulsea heterochroma A. Grayredray alpinegold
Hulsea mexicana Rydb.Mexican alpinegold
Hulsea nana A. Graydwarf alpinegold
Hulsea vestita A. GrayPumice Alpinegold
Hunnemannia fumariifolia SweetMexican Tulip Poppy
Hunzikeria texana (Torr.) D'ArcyTexas Cupflower
Huperzia haleakalae (Brack.) HolubPacific clubmoss
Huperzia lucidula (Michx.) Trevis.Shining Clubmoss
Huperzia miyoshiana (Makino) ChingMiyoshi's clubmoss
Huperzia occidentalis (Clute) Kartesz & Gandhiwestern clubmoss
Hyacinthus orientalis L.garden hyacinth
Hybanthus attenuatus (Humb. & Bonpl. ex Schult.) Schulze-Menzwestern greenviolet
Hybanthus verticillatus (Ortega) Baill.babyslippers
Hydrilla verticillata (L. f.) RoyleWaterthyme
Hydrocotyle moschata G. Forst.Musky Marshpennywort
Hydrocotyle prolifera Kelloggwhorled marshpennywort
Hydrocotyle ranunculoides L. f.Floating Marshpennywort
Hydrocotyle sibthorpioides Lam.lawn marshpennywort
Hydrocotyle umbellata L.manyflower marshpennywort
Hydrocotyle verticillata Thunb.Whorled Marshpennywort
Hydrophyllum capitatum Douglas ex Benth.Ballhead Waterleaf
Hydrophyllum fendleri (A. Gray) A. HellerFendler's waterleaf
Hydrophyllum occidentale (S. Watson) A. Graywestern waterleaf
Hydrophyllum tenuipes A. HellerPacific Waterleaf
Hygrophila polysperma (Roxb.) T. AndersonIndian swampweed
Hylotelephium telephium (L.) H. Ohbawitch's moneybags
Hymenoclea salsola Torr. & A. GrayBurrobrush
Hymenopappus biennis B.L. Turnerbiennial woollywhite
Hymenopappus filifolius Hook.Fineleaf Hymenopappus
Hymenopappus flavescens A. Graycollegeflower
Hymenopappus mexicanus A. GrayMexican woollywhite
Hymenopappus newberryi (A. Gray) I.M. Johnst.Newberry's Hymenopappus
Hymenopappus radiatus RoseRay Hymenopappus
Hymenopappus scabiosaeus L'Hér.Carolina woollywhite
Hymenopappus tenuifolius PurshChalk Hill hymenopappus
Hymenothrix loomisii S.F. BlakeLoomis' thimblehead
Hymenothrix wislizeni A. GrayTrans-Pecos thimblehead
Hymenothrix wrightii A. GrayWright's thimblehead
Hymenoxys ambigens (S.F. Blake) BiernerPinaleno Mountain rubberweed
Hymenoxys bigelovii (A. Gray) K.F. ParkerBigelow's Rubberweed
Hymenoxys brachyactis Wooton & Standl.East View Rubberweed
Hymenoxys cooperi (A. Gray) CockerellCooper's rubberweed
Hymenoxys grandiflora (Torr. & A.Gray) K.F.ParkerGraylocks Four-Nerve Daisy
Hymenoxys helenioides (Rydb.) CockerellIntermountain Rubberweed
Hymenoxys hoopesii (A. Gray) Biernerowl's-claws
Hymenoxys jamesii BiernerJame's Rubberweed
Hymenoxys lemmonii (Greene) CockerellLemmon's Rubberweed
Hymenoxys odorata DC.bitter rubberweed
Hymenoxys quinquesquamata Rydb.rincon rubberweed
Hymenoxys richardsonii (Hook.) Cockerellpingue rubberweed
Hymenoxys rusbyi (A. Gray) CockerellRusby's Rubberweed
Hymenoxys subintegra CockerellArizona Rubberweed
Hymenoxys vaseyi (A. Gray) CockerellVasey's rubberweed
Hyoscyamus niger L.black henbane
Hyparrhenia hirta (L.) Stapfthatching grass
Hypericum anagalloides Cham. & Schltdl.tinker's penny
Hypericum calycinum L.Aaron's Beard
Hypericum canariense L.Canary Island St. Johnswort
Hypericum concinnum Benth.goldwire
Hypericum majus (A. Gray) Brittonlarge St. Johnswort
Hypericum mutilum L.Dwarf St. John's Wort
Hypericum perforatum L.common St. Johnswort
Hypericum scouleri Hook.Scouler's St. Johnswort
Hypochaeris glabra L.smooth cat's ear
Hypochaeris radicata L.hairy cat's ear
Hypoxis hirsuta (L.) Covillecommon goldstar
Iberis amara L.annual candytuft
Iberis gibraltarica L.Gibraltar Candytuft
Iberis sempervirens L.evergreen candytuft
Iberis umbellata L.globe candytuft
Ibervillea lindheimeri (A. Gray) GreeneLindheimer's globeberry
Ibervillea tenuisecta (A. Gray) Smallslimlobe globeberry
Ibicella lutea (Lindl.) Van Eselt.yellow unicorn-plant
Idahoa scapigera (Hook.) A. Nelson & J.F. Macbr.oldstem idahoa
Ilex aquifolium L.European Holly
Iliamna angulata GreeneLargeflower Wild Hollyhock
Iliamna bakeri (Jeps.) WigginsBaker's Wild Hollyhock
Iliamna crandallii (Rydb.) WigginsCrandall's Wild Hollyhock
Iliamna longisepala (Torr.) Wigginslongsepal wild hollyhock
Iliamna rivularis (Douglas ex Hook.) GreeneStreambank Wild Hollyhock
Impatiens aurella Rydb.paleyellow touch-me-not
Impatiens balfourii Hook. f.Balfour's touch-me-not
Impatiens capensis Meerb.Jewelweed
Impatiens ecornuta Gerry Moore, Zika & RushworthSpurless Touch-me-not
Impatiens glandulifera Royleornamental jewelweed
Imperata brevifolia VaseyCalifornia satintail
Indigofera lindheimeriana ScheeleLindheimer's indigo
Indigofera miniata Ortegacoastal indigo
Indigofera sphaerocarpa A. GraySonoran indigo
Inula helenium L.elecampane inula
Ionactis alpina (Nutt.) GreeneLava Aster
Ionactis caelestis Leary & G.L. NesomSpring Mountain Aster
Ionactis elegans (Soreng & Spellenb.) G.L. NesomSierra Blanca Least-Daisy
Ionactis stenomeres (A. Gray) GreeneRocky Mountain aster
Ipomoea ×leucantha Jacq.Hybrid Morning-Glory
Ipomoea barbatisepala A. Graycanyon morning-glory
Ipomoea cairica (L.) SweetMessina creeper
Ipomoea capillacea (Kunth) G. Donpurple morning-glory
Ipomoea cardiophylla A. Grayheartleaf morning-glory
Ipomoea cordatotriloba Dennst.tievine
Ipomoea costellata Torr.crestrib morning-glory
Ipomoea cristulata Hallier f.Trans-Pecos Morning-Glory
Ipomoea dumetorum Willd. ex Roem. & Schult.railwaycreeper
Ipomoea hederacea Jacq.Ivyleaf Morning-Glory
Ipomoea indica (Burm. f.) Merr.oceanblue morning-glory
Ipomoea leptophylla Torr.bush morning-glory
Ipomoea lindheimeri A. GrayLindheimer's morning-glory
Ipomoea longifolia Benth.pinkthroat morning-glory
Ipomoea nil (L.) RothWhiteedge Morning-glory
Ipomoea plummerae A. GrayHuachuca Mountain morning-glory
Ipomoea pubescens Lam.silky morning-glory
Ipomoea purpurea (L.) Rothtall morning-glory
Ipomoea rupicola HouseCliff Morning-Glory
Ipomoea sagittata Poir.saltmarsh morning-glory
Ipomoea tenuiloba Torr.Spiderleaf
Ipomoea ternifolia Cav.Tripleleaf Morning-glory
Ipomoea thurberi A. GrayThurber's morning-glory
Ipomoea tricolor Cav.Grannyvine
Ipomopsis aggregata (Pursh) V.E. Grantscarlet gilia
Ipomopsis arizonica (Greene) WherryArizona Ipomopsis
Ipomopsis congesta (Hook.) V.E. GrantBallhead Ipomopsis
Ipomopsis effusa (A. Gray) MoranBaja California ipomopsis
Ipomopsis gunnisonii (Torr. & A. Gray) V.E. GrantSanddune Ipomopsis
Ipomopsis havardii (A. Gray) V.E. GrantHavard's ipomopsis
Ipomopsis laxiflora (J.M. Coult.) V.E. Grantiron ipomopsis
Ipomopsis longiflora (Torr.) V.E. Grantflaxflowered ipomopsis

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Article Status: ✓ = complete

Range map status: ∅ = No map,
= Our research
, accurate to lv (1,2,3,4) ecoregions,
= excludes Alaska, Canada & Mexico


Map Legend: Native Introduced Extirpated Expanded Present: Various or Uncertain Origin Native or Not Present Introduced or Not Present Native or Introduced Native or Expanded Expanded or Not Present Native or Introduced or Not Present

Progress

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