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Families: 94
Genera: 434
Species: 865 (species rank)
Total Taxa: 1019 (including subsp. and var.)

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Acer glabrum var. glabrum - Rocky Mountain maple
Sambucus cerulea - blue elderberry
Sagittaria cuneata - arumleaf arrowhead
Amaranthus albus - prostrate pigweed
Amaranthus blitoides - mat amaranth
Amaranthus hybridus - slim amaranth
Amaranthus palmeri - carelessweed
Amaranthus powellii - Powell's amaranth
Amaranthus retroflexus - redroot amaranth
Amaranthus wrightii - Wright's amaranth
Monolepis nuttalliana - Nuttall's povertyweed
Rhus glabra - smooth sumac
Rhus trilobata - skunkbush sumac
Toxicodendron rydbergii - western poison ivy
Berula erecta - cutleaf waterparsnip
Berula erecta var. incisa - cutleaf waterparsnip
Cicuta maculata var. angustifolia - spotted water hemlock
Conioselinum scopulorum - Rocky Mountain hemlockparsley
Cymopterus fendleri - Fendler's springparsley
Cymopterus lemmonii - alpine false springparsley
Heracleum maximum - common cowparsnip
Ligusticum porteri - Porter's licorice-root
Osmorhiza depauperata - bluntseed sweetroot
Oxypolis fendleri - Fendler's cowbane
Asclepias engelmanniana - Engelmann's milkweed
Asclepias involucrata - dwarf milkweed
Asclepias macrotis - longhood milkweed
Asclepias speciosa - showy milkweed
Asclepias subverticillata - horsetail milkweed
Asclepias viridiflora - green comet milkweed
Asparagus officinalis - garden asparagus
Yucca baccata - banana yucca
Yucca baileyi - Navajo yucca
Achillea millefolium - western yarrow
Acroptilon repens - Russian knapweed
Ageratina herbacea - fragrant snakeroot
Agoseris aurantiaca - orange agoseris
Agoseris glauca - pale agoseris
Amauriopsis dissecta - ragleaf bahia
Ambrosia artemisiifolia - annual ragweed
Ambrosia psilostachya - Cuman ragweed
Anaphalis margaritacea - western pearly everlasting
Antennaria marginata - whitemargin pussytoes
Antennaria parvifolia - small-leaf pussytoes
Antennaria rosea - rosy pussytoes
Antennaria rosulata - Kaibab pussytoes
Arctium minus - lesser burdock
Artemisia biennis - biennial wormwood
Artemisia bigelovii - Bigelow sage
Artemisia campestris - field sagewort
Artemisia carruthii - Carruth's sagewort
Artemisia filifolia - sand sagebrush
Artemisia franserioides - ragweed sagebrush
Artemisia frigida - prairie sagewort
Artemisia tridentata - big sagebrush
Baccharis salicina - Emory's baccharis
Baccharis wrightii - Wright's baccharis
Baileya multiradiata - desert marigold
Berlandiera lyrata - lyreleaf greeneyes
Bidens cernua - nodding beggartick
Bidens frondosa - devil's beggartick
Bidens tenuisecta - slimlobe beggarticks
Brickellia brachyphylla - plumed brickellbush
Brickellia grandiflora - tasselflower brickellbush
Brickellia rusbyi - stinking brickellbush
Brickelliastrum fendleri - Fendler's brickellbush
Carduus nutans - nodding plumeless thistle
Cirsium arvense - Canada thistle
Cirsium neomexicanum - New Mexico thistle
Cirsium parryi - Parry's thistle
Cirsium undulatum - wavyleaf thistle
Cirsium vulgare - bull thistle
Conyza canadensis - Canadian horseweed
Cosmos parviflorus - southwestern cosmos
Crepis tectorum - narrow-leaf hawk's-beard
Dieteria bigelovii - Bigelow's tansyaster
Dyssodia papposa - fetid marigold
Engelmannia pinnatifida - Engelmann's daisy
Ericameria nauseosa - rubber rabbitbrush
Ericameria parryi - Parry's rabbitbrush
Erigeron aphanactis - rayless shaggy fleabane
Erigeron bellidiastrum - western daisy fleabane
Erigeron canus - hoary fleabane
Erigeron colomexicanus - running fleabane
Erigeron divergens - spreading fleabane
Erigeron eximius - sprucefir fleabane
Erigeron flagellaris - trailing fleabane
Erigeron philadelphicus - Philadelphia fleabane
Erigeron speciosus - aspen fleabane
Erigeron tracyi - running fleabane
Erigeron vreelandii - Vreeland's erigeron
Euthamia occidentalis - western goldentop
Gaillardia aristata - common gaillardia
Gaillardia pinnatifida - red dome blanketflower
Gnaphalium exilifolium - slender cudweed
Grindelia squarrosa - curlycup gumweed
Gutierrezia sarothrae - broom snakeweed
Helenium autumnale - common sneezeweed
Helianthella quinquenervis - fivenerve helianthella
Helianthus annuus - common sunflower
Helianthus petiolaris - prairie sunflower
Heterotheca villosa - hairy false goldenaster
Heterotheca villosa var. nana - hairy false goldenaster
Hieracium fendleri - yellow hawkweed
Hymenopappus filifolius - fineleaf hymenopappus
Hymenopappus newberryi - Newberry's hymenopappus
Hymenoxys hoopesii - owl's-claws
Hymenoxys richardsonii - pingue rubberweed
Hypochaeris radicata - hairy cat's ear
Iva xanthiifolia - marshelder
Krigia biflora - twoflower dwarfdandelion
Lactuca biennis - tall blue lettuce
Lactuca canadensis - Canada lettuce
Lactuca sativa - garden lettuce
Lactuca serriola - prickly lettuce
Laennecia coulteri - Coulter's horseweed
Laennecia schiedeana - pineland marshtail
Leibnitzia lyrata - Seeman's sunbonnets
Liatris punctata - dotted blazing star
Lygodesmia juncea - rush skeletonplant
Machaeranthera tanacetifolia - tanseyleaf tansyaster
Malacothrix fendleri - Fendler's desertdandelion
Matricaria discoidea - disc mayweed
Oreochrysum parryi - Parry's goldenrod
Packera hartiana - Mogollon Mountain ragwort
Packera neomexicana - New Mexico groundsel
Pericome caudata - mountain tail-leaf
Pseudognaphalium canescens - Wright's cudweed
Pseudognaphalium macounii - Macoun's cudweed
Psilostrophe tagetina - woolly paperflower
Pyrrhopappus pauciflorus - smallflower desert-chicory
Pyrrocoma crocea - curlyhead goldenweed
Ratibida columnifera - upright prairie coneflower
Ratibida tagetes - green prairie coneflower
Rudbeckia hirta - black-eyed Susan
Rudbeckia laciniata - cutleaf coneflower
Sanvitalia abertii - Albert's creeping zinnia
Schkuhria multiflora - manyflower false threadleaf
Scorzonera laciniata - False salsify
Senecio eremophilus - desert ragwort
Senecio flaccidus - threadleaf ragwort
Senecio hartianus - Mogollon Mountain ragwort
Senecio vulgaris - old-man-in-the-Spring
Senecio wootonii - Wooton's ragwort
Solidago canadensis - Canada goldenrod
Solidago missouriensis - Missouri goldenrod
Solidago nana - baby goldenrod
Solidago simplex var. simplex - Mt. Albert goldenrod
Solidago velutina - threenerve goldenrod
Sonchus asper - spiny sowthistle
Sonchus oleraceus - common sowthistle
Stenotus armerioides - thrift mock goldenweed
Stephanomeria pauciflora - brownplume wirelettuce
Symphyotrichum ericoides - white heath aster
Symphyotrichum lanceolatum - white panicle aster
Tanacetum vulgare - common tansy
Taraxacum officinale - common dandelion
Tetradymia canescens - spineless horsebrush
Thelesperma megapotamicum - Hopi tea greenthread
Townsendia annua - annual Townsend daisy
Townsendia exscapa - stemless Townsend daisy
Townsendia incana - hoary Townsend daisy
Tragopogon dubius - yellow salsify
Tragopogon pratensis - meadow salsify
Xanthisma gracile - slender goldenweed
Xanthisma spinulosum - spiny haplopappus
Xanthium strumarium - rough cocklebur
Zinnia grandiflora - Rocky Mountain zinnia
Berberis aquifolium - hollyleaved barberry
Berberis repens - creeping barberry
Alnus oblongifolia - Arizona alder
Cryptantha fendleri - sanddune cryptantha
Cryptantha fulvocanescens - tawny cryptantha
Hackelia besseyi - Bessey's stickseed
Hackelia floribunda - manyflower stickseed
Lappula occidentalis - flatspine stickseed
Lappula redowskii - flatspine stickseed
Lappula squarrosa - European stickseed
Lithospermum incisum - narrowleaf stoneseed
Lithospermum multiflorum - manyflowered stoneseed
Mertensia franciscana - Franciscan bluebells
Nama hispidum - bristly nama
Phacelia caerulea - caterpillar weed
Phacelia integrifolia - gypsum phacelia
Alyssum minus - European alyssum
Arabis hirsuta var. pycnocarpa - creamflower rockcress
Barbarea orthoceras - American yellowrocket
Barbarea vulgaris - winter cress
Boechera perennans - perennial rockcress
Boechera stricta - Drummond's rockcress
Brassica rapa - field mustard
Capsella bursa-pastoris - shepherd's purse
Cardaria draba - globed-podded hoarycress or whitetop
Chorispora tenella - blue mustard
Descurainia incana - mountain tansymustard
Descurainia incana subsp. viscosa - mountain tansymustard
Descurainia sophia - herb sophia
Draba aurea - golden draba
Draba reptans - Carolina draba
Erysimum capitatum - sanddune wallflower
Hesperidanthus linearifolius - slimleaf plainsmustard
Lepidium alyssoides - mesa pepperwort
Lepidium campestre - field pepperweed
Lepidium densiflorum - common pepperweed
Lepidium latifolium - broadleaved pepperweed
Lepidium ramosissimum - manybranched pepperweed
Lepidium virginicum - Virginia pepperweed
Lesquerella fendleri - Fendler's bladderpod
Lesquerella intermedia - mid bladderpod
Lesquerella rectipes - straight bladderpod
Noccaea fendleri - Fendler's pennycress
Pennellia longifolia - longleaf mock thelypody
Pennellia micrantha - mountain mock thelypody
Rorippa sphaerocarpa - roundfruit yellowcress
Sisymbrium altissimum - tall tumblemustard
Thelypodiopsis purpusii - Purpus' tumblemustard
Thelypodium wrightii - Wright's thelypody
Thlaspi arvense - field pennycress
Turritis glabra - tower rockcress
Coryphantha vivipara - Kaibab spinystar
Echinocereus coccineus - scarlet hedgehog cactus
Echinocereus fendleri - pinkflower hedgehog cactus
Opuntia engelmannii - cactus apple
Opuntia phaeacantha - Dark-spined pricklypear
Opuntia polyacantha var. hystricina - grizzlybear pricklypear
Sclerocactus papyracanthus - paperspine fishhook cactus
Campanula parryi - Parry's bellflower
Campanula rotundifolia - bluebell bellflower
Lobelia cardinalis - cardinalflower
Triodanis perfoliata - clasping Venus' looking-glass
Lonicera involucrata - twinberry honeysuckle
Symphoricarpos rotundifolius - roundleaf snowberry
Cerastium arvense - field chickweed
Cerastium brachypodum - shortstalk chickweed
Cerastium glomeratum - sticky chickweed
Dianthus armeria - deptford pink
Drymaria leptophylla - canyon drymary
Drymaria molluginea - slimleaf drymary
Eremogone fendleri - Tweedy's sandwort
Silene antirrhina - sleepy silene
Silene latifolia - white campion
Silene menziesii - Menzies' campion
Silene noctiflora - night-flowering catchfly
Spergularia salina - salt sandspurry
Stellaria longifolia - longleaf starwort
Stellaria longipes - longstalk starwort
Stellaria media - common chickweed
Paxistima myrsinites - Mountain lover
Atriplex argentea - silverscale saltbush
Atriplex canescens - fourwing saltbush
Chenopodium album - lambsquarters
Chenopodium atrovirens - pinyon goosefoot
Chenopodium berlandieri - pitseed goosefoot
Chenopodium capitatum - blite goosefoot
Chenopodium desiccatum - aridland goosefoot
Chenopodium fremontii - Fremont's goosefoot
Chenopodium glaucum - oakleaf goosefoot
Chenopodium incanum - mealy goosefoot
Chenopodium leptophyllum - narrowleaf goosefoot
Chenopodium neomexicanum - New Mexico goosefoot
Chenopodium pratericola - desert goosefoot
Chenopodium rubrum - red goosefoot
Corispermum americanum - American bugseed
Dysphania graveolens - fetid goosefoot
Kochia prostrata - prostrate summer-cypress
Kochia scoparia - mock cypress
Salsola collina - slender Russian thistle
Cleome serrulata - Rocky Mountain beeplant
Commelina dianthifolia - birdbill dayflower
Tradescantia occidentalis - prairie spiderwort
Convolvulus arvensis - field bindweed
Cuscuta pentagona - fiveangled dodder
Evolvulus nuttallianus - shaggy dwarf morning-glory
Ipomoea cristulata - Transpecos morning-glory
Ipomoea purpurea - tall morning-glory
Sedum cockerellii - Cockerell's stonecrop
Cucurbita foetidissima - Missouri gourd
Juniperus communis - common juniper
Juniperus deppeana - alligator juniper
Juniperus monosperma - oneseed juniper
Juniperus scopulorum - Rocky Mountain juniper
Carex aquatilis - water sedge
Carex atherodes - wheat sedge
Carex bolanderi - Bolander's sedge
Carex brevior - shortbeak sedge
Carex canescens - silvery sedge
Carex disperma - softleaf sedge
Carex douglasii - Douglas' sedge
Carex duriuscula - needleleaf sedge
Carex emoryi - Emory's sedge
Carex geophila - White Mountain sedge
Carex interior - inland sedge
Carex limnophila - smallwing sedge
Carex microptera - smallwing sedge
Carex nebrascensis - Nebraska sedge
Carex occidentalis - western sedge
Carex pellita - woolly sedge
Carex praegracilis - clustered field sedge
Carex rossii - Ross' sedge
Carex siccata - dryspike sedge
Carex simulata - analogue sedge
Carex stipata - stalk-grain sedge
Carex subfusca - brown sedge
Carex utriculata - Northwest Territory sedge
Carex wootonii - Wooton's sedge
Cyperus esculentus - yellow nutsedge
Cyperus fendlerianus - Fendler's flatsedge
Eleocharis palustris - common spikerush
Schoenoplectus acutus - great bulrush
Schoenoplectus americanus - chairmaker's bulrush
Dipsacus fullonum - Fuller's teasel
Cystopteris bulbifera - bulblet bladderfern
Equisetum arvense - field horsetail
Equisetum hyemale var. affine - scouringrush horsetail
Equisetum laevigatum - smooth horsetail
Arctostaphylos pungens - pointleaf manzanita
Orthilia secunda - sidebells wintergreen
Pterospora andromedea - woodland pinedrops
Pyrola asarifolia - liverleaf wintergreen
Pyrola chlorantha - greenflowered wintergreen
Pyrola minor - snowline wintergreen
Pyrola picta - whiteveined wintergreen
Vaccinium myrtillus - whortleberry
Chamaesyce glyptosperma - ribseed sandmat
Chamaesyce serpyllifolia - thymeleaf sandmat
Croton texensis - Texas croton
Euphorbia brachycera - horned spurge
Euphorbia davidii - David's spurge
Euphorbia fendleri - Fendler's sandmat
Euphorbia parryi - Parry's sandmat
Euphorbia revoluta - threadstem sandmat
Amorpha fruticosa - desert false indigo
Astragalus ceramicus - painted milkvetch
Astragalus flexuosus - flexile milkvetch
Astragalus lentiginosus - freckled milkvetch
Astragalus lonchocarpus - rushy milkvetch
Astragalus nuttallianus - smallflowered milkvetch
Astragalus praelongus - stinking milkvetch
Coronilla varia - purple crownvetch
Dalea aurea - golden prairie clover
Dalea candida - white prairie clover
Dalea formosa - featherplume
Dalea jamesii - James' prairie clover
Dalea lanata - woolly prairie clover
Dalea leporina - foxtail prairie clover
Dalea nana - dwarf prairie clover
Dalea polygonoides - sixweeks prairie clover
Dalea purpurea - violet prairie clover
Glycyrrhiza lepidota - American licorice
Lathyrus eucosmus - bush vetchling
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This project made possible by National Science Foundation Award 1410069