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Families: 96
Genera: 441
Species: 981 (species rank)
Total Taxa: 1010 (including subsp. and var.)

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Acer glabrum var. glabrum - Rocky Mountain maple
Sambucus cerulea - blue elderberry
Viburnum carlesii - Korean-Spice Arrow-Wood
Viburnum lantana - Wayfaring-Tree
Sagittaria cuneata - Arum-Leaf Arrowhead
Amaranthus albus - Tumbleweed
Amaranthus crassipes - Spreading Amaranth
Amaranthus hybridus - Smooth Amaranth
Amaranthus palmeri - Careless Weed
Amaranthus powellii - Green Amaranth
Amaranthus wrightii - Wright's Amaranth
Rhus glabra - Smooth Sumac
Rhus trilobata - skunkbush sumac
Toxicodendron rydbergii - Western Poison Ivy
Berula erecta - Cut-Leaf-Water-Parsnip
Berula erecta var. incisa - Cut-Leaf-Water-Parsnip
Conioselinum scopulorum - Rocky Mountain Hemlock-Parsley
Cymopterus fendleri - Plains Spring-Parsley
Cymopterus lemmonii - Alpine Spring-Parsley
Heracleum maximum - American Cow-Parsnip
Ligusticum porteri - Porter's Wild Lovage
Osmorhiza depauperata - Blunt-Fruit Sweet-Cicely
Oxypolis fendleri - Fendler's Cowbane
Asclepias engelmanniana - Engelmann's Milkweed
Asclepias involucrata - Big-Seed Milkweed
Asclepias macrotis - Long-Hood Milkweed
Asclepias speciosa - Showy Milkweed
Asclepias subverticillata - Horsetail Milkweed
Asclepias viridiflora - Green Comet Milkweed
Yucca baccata - Banana Yucca
Yucca baileyi - Navajo Yucca
Achillea millefolium - Woolly Yarrow
Acroptilon repens - Russian knapweed
Ageratina herbacea - Fragrant Snakeroot
Agoseris aurantiaca - Orange-Flower Goat-Chicory
Agoseris glauca - Pale Goat-Chicory
Amauriopsis dissecta - Sunray Daisy
Ambrosia acanthicarpa - Flat-Spine Burr-Ragweed
Ambrosia psilostachya - Perennial Ragweed
Ambrosia tomentosa - Skeleton-Leaf Burr-Ragweed
Anaphalis margaritacea - Pearly-Everlasting
Antennaria marginata - White-Margin Pussytoes
Antennaria parvifolia - small-leaf pussytoes
Antennaria rosea - Rosy Pussytoes
Antennaria rosulata - Kaibab Pussytoes
Arctium minus - Lesser Burrdock
Artemisia biennis - Biennial Wormwood
Artemisia bigelovii - Flat Sagebrush
Artemisia campestris - Pacific Wormwood
Artemisia carruthii - Carruth's Sagebrush
Artemisia dracunculus - Dragon Wormwood
Artemisia filifolia - Silver Sagebrush
Artemisia franserioides - Ragweed Sagebrush
Artemisia frigida - Prairie Sagebrush
Artemisia ludoviciana - White Sagebrush
Artemisia tridentata - Big Sagebrush
Baccharis salicina - Great Plains False Willow
Baccharis wrightii - Wright's False Willow
Baileya multiradiata - Showy Desert-Marigold
Berlandiera lyrata - Lyre-Leaf Greeneyes
Bidens cernua - Nodding Burr-Marigold
Bidens frondosa - Devil's-Pitchfork
Bidens tenuisecta - Slim-Lobe Beggarticks
Brickellia brachyphylla - Plumed Brickellbush
Brickellia californica - California Brickellbush
Brickellia grandiflora - Tassel-Flower Brickellbush
Brickellia rusbyi - Stinking Brickellbush
Brickelliastrum fendleri - Fendler's-Brickellbush
Carduus nutans - Nodding Plumeless-Thistle
Centaurea stoebe - Spotted Knapweed
Cirsium arvense - Canadian Thistle
Cirsium neomexicanum - New Mexico Thistle
Cirsium parryi - Parry's Thistle
Cirsium undulatum - Wavy-Leaf Thistle
Cirsium vulgare - Bull Thistle
Conyza canadensis - Canadian Horseweed
Cosmos parviflorus - Southwestern Cosmos
Crepis tectorum - Narrow-Leaf Hawk's-Beard
Dieteria bigelovii - Bigelow's False Tansy-Aster
Dyssodia papposa - Fetid-Marigold
Engelmannia pinnatifida - Engelmann's Daisy
Ericameria nauseosa - Rubber-Rabbitbrush
Ericameria parryi - Parry's Rubber-Rabbitbrush
Erigeron aphanactis - Rayless Shaggy Fleabane
Erigeron bellidiastrum - Western Daisy Fleabane
Erigeron canus - Hoary Fleabane
Erigeron colomexicanus - Running Fleabane
Erigeron divergens - Rough Fleabane
Erigeron eximius - Spruce-Fir Fleabane
Erigeron flagellaris - Trailing Fleabane
Erigeron philadelphicus - Philadelphia Fleabane
Erigeron speciosus - aspen fleabane
Erigeron subtrinervis - Three-Nerve Fleabane
Erigeron tracyi - Running Fleabane
Erigeron vetensis - Early Blue-Top Fleabane
Erigeron vreelandii - Broad-Leaf Fleabane
Euthamia occidentalis - Western Goldentop
Gaillardia aristata - Great Blanket-Flower
Gaillardia pinnatifida - Red-Dome Blanket-Flower
Gnaphalium exilifolium - Slender Cudweed
Grindelia squarrosa - Curly-Cup Gumweed
Helenium autumnale - Autumn Sneezeweed
Helianthella quinquenervis - Nodding Dwarf-Sunflower
Helianthus annuus - Common Sunflower
Helianthus pauciflorus - Stiff Sunflower
Helianthus petiolaris - Prairie Sunflower
Heterotheca villosa - Hairy False Golden-Aster
Heterotheca villosa var. nana - hairy false goldenaster
Hieracium fendleri - Yellow Hawkweed
Hymenopappus filifolius - Fine-Leaf Woollywhite
Hymenopappus flavescens - Yellow Woollywhite
Hymenopappus newberryi - Newberry's Woollywhite
Hymenopappus tenuifolius - Chalkhill Woollywhite
Hymenoxys richardsonii - Colorado Rubberweed
Hypochaeris radicata - Hairy Cat's-Ear
Iva xanthiifolia - Carelessweed
Krigia biflora - Two-Flower Dwarf-Dandelion
Lactuca biennis - Wild Blue Lettuce
Lactuca canadensis - Canadian Blue Lettuce
Lactuca sativa - Garden Lettuce
Lactuca serriola - Prickly Lettuce
Laennecia coulteri - Coulter's Woolwort
Leibnitzia lyrata - Seeman's-Sunbonnets
Liatris punctata - Dotted Gayfeather
Lygodesmia juncea - Rush Skeleton-Plant
Malacothrix fendleri - Fendler's Desert-Dandelion
Matricaria discoidea - Pineapple-Weed
Oreochrysum parryi - Parry's-Goldenweed
Packera fendleri - Fendler's Groundsel
Packera hartiana - Hart's Groundsel
Packera neomexicana - New Mexico Groundsel
Packera streptanthifolia - Rocky Mountain Groundsel
Pericome caudata - Mountain Tailleaf
Pseudognaphalium canescens - Wright's Rabbit-Tobacco
Pseudognaphalium macounii - Macoun's Rabbit-Tobacco
Psilostrophe tagetina - Woolly Paper-Flower
Pyrrhopappus pauciflorus - Small-Flower Desert-Chicory
Pyrrocoma crocea - Curly-Head Goldenweed
Ratibida columnifera - Red-Spike Mexican-Hat
Ratibida tagetes - Green Mexican-Hat
Rudbeckia hirta - Black-Eyed-Susan
Rudbeckia laciniata - Green-Head Coneflower
Sanvitalia abertii - Albert's Creeping-Zinnia
Schkuhria multiflora - Many-Flower False Threadleaf
Scorzonera laciniata - Cut-Leaf Viper-Grass
Senecio atratus - Tall Black-Tip Ragwort
Senecio eremophilus - Desert Ragwort
Senecio flaccidus - Thread-Leaf Ragwort
Senecio hartianus - Hart's Groundsel
Senecio vulgaris - Old-Man-in-the-Spring
Senecio wootonii - Wooton's Ragwort
Solidago canadensis - Canadian Goldenrod
Solidago missouriensis - Missouri Goldenrod
Solidago nana - Baby Goldenrod
Solidago simplex var. simplex - Mt. Albert goldenrod
Solidago velutina - Three-Nerve Goldenrod
Sonchus asper - Spiny-Leaf Sow-Thistle
Sonchus oleraceus - Common Sow-Thistle
Stenotus armerioides - Thrift Mock Goldenweed
Stephanomeria pauciflora - Brown-Plume Wire-Lettuce
Symphyotrichum ascendens - Western American-Aster
Symphyotrichum ericoides - White Heath American-Aster
Symphyotrichum lanceolatum - White Panicled American-Aster
Symphyotrichum subulatum - Seaside American-Aster
Tanacetum vulgare - Common Tansy
Taraxacum erythrospermum - Red-Seed Dandelion
Taraxacum officinale - Common Dandelion
Tetradymia canescens - Spineless Horsebrush
Thelesperma filifolium - Stiff Greenthread
Townsendia annua - Annual Townsend Daisy
Townsendia eximia - Rocky Mountain Townsend Daisy
Townsendia exscapa - Stemless Townsend Daisy
Townsendia incana - Hoary Townsend Daisy
Tragopogon dubius - Meadow Goat's-Beard
Tragopogon pratensis - Jack-Go-To-Bed-At-Noon
Xanthisma gracile - Grass-Leaf Sleepy Daisy
Xanthisma spinulosum - Lacy Sleepy Daisy
Xanthium strumarium - Rough Cockleburr
Zinnia grandiflora - Little Golden Zinnia
Berberis aquifolium - Holly-Leaf Oregon-Grape
Berberis fendleri - Fendler's Barberry
Berberis repens - Creeping Oregon-Grape
Alnus oblongifolia - Arizona Alder
Cryptantha cinerea var. jamesii - James' Perennial Cat's-Eye
Cryptantha fendleri - Sand-Dune Cat's-Eye
Cryptantha fulvocanescens - tawny cryptantha
Hackelia besseyi - Bessey's Stickseed
Hackelia floribunda - Many-Flower Stickseed
Hackelia hirsuta - New Mexico Stickseed
Lappula occidentalis - Flat-Spine Sheepburr
Lappula redowskii - flatspine stickseed
Lappula squarrosa - Bristly Sheepburr
Lithospermum incisum - Fringed Gromwell
Mertensia franciscana - Franciscan Bluebells
Nama hispidum - Sandbells
Phacelia caerulea - Sky-Blue Scorpion-Weed
Phacelia integrifolia - Gypsum Scorpion-Weed
Alyssum minus - European alyssum
Arabis hirsuta var. pycnocarpa - Hairy Eared Rockcress
Barbarea orthoceras - American Yellow-Rocket
Barbarea vulgaris - Garden Yellow-Rocket
Boechera fendleri - Fendler's Rockcress
Boechera gracilenta - Selby's Rockcress
Boechera pallidifolia - Gunnison County Rockcress
Boechera perennans - Perennial Rockcress
Boechera stricta - Canadian Rockcress
Capsella bursa-pastoris - Shepherd's-Purse
Cardaria chalepensis - Lens-Pod Pepperwort
Descurainia brevisiliqua - Pineland Tansy-Mustard
Descurainia incana - Mountain Tansy-Mustard
Draba aurea - Golden Whitlow-Grass
Draba helleriana var. blumeri - Santa Rita Mountain Whitlow-Grass
Draba reptans - Carolina draba
Erysimum capitatum - Sand-Dune Wallflower
Hesperidanthus linearifolius - slimleaf plainsmustard
Lepidium alyssoides - Mesa Pepperwort
Lepidium campestre - Cream-Anther Field Pepperwort
Lepidium chalepense - Lens-Pod Pepperwort
Lepidium densiflorum - Miner's Pepperwort
Lepidium draba - Heart-Pod Pepperwort
Lepidium latifolium - Broad-Leaf Pepperwort
Lepidium ramosissimum - Branched Pepperwort
Lepidium virginicum - Poorman's-Pepperwort
Lesquerella fendleri - Fendler's bladderpod
Lesquerella intermedia - mid bladderpod
Lesquerella rectipes - straight bladderpod
Noccaea fendleri - Alpine Pennycress
Pennellia longifolia - Long-Leaf Cross
Pennellia micrantha - Mountain Cross
Rorippa microphylla - One-Row Watercress
Rorippa sphaerocarpa - Round-Fruit Yellowcress
Sisymbrium altissimum - Tall Hedge-Mustard
Sisymbrium loeselii - False London Rocket
Thelypodiopsis purpusii - Purpus' tumblemustard
Thelypodium wrightii - Wright's thelypody
Thlaspi arvense - Field Pennycress
Turritis glabra - Tower-Mustard
Coryphantha vivipara - Kaibab spinystar
Echinocereus coccineus - Scarlet Hedgehog Cactus
Echinocereus fendleri - Pink-Flower Hedgehog Cactus
Echinocereus viridiflorus - Nylon Hedgehog Cactus
Opuntia engelmannii - Cactus-Apple
Opuntia phaeacantha - Tulip Prickly-Pear
Opuntia polyacantha var. hystricina - grizzlybear pricklypear
Sclerocactus papyracanthus - Paper-Spine Fish-Hook Cactus
Campanula parryi - Parry's Bellflower
Campanula rotundifolia - Bluebell-of-Scotland
Lobelia cardinalis - Cardinal-Flower
Triodanis perfoliata - Clasping-Leaf Venus'-Looking-Glass
Lonicera involucrata - Four-Line Honeysuckle
Symphoricarpos rotundifolius - Round-Leaf Snowberry
Cerastium arvense - Field Mouse-Ear Chickweed
Cerastium brachypodum - Short-Stalk Mouse-Ear Chickweed
Cerastium fontanum - Common Mouse-Ear Chickweed
Cerastium glomeratum - Sticky Mouse-Ear Chickweed
Dianthus armeria - Deptford Pink
Drymaria leptophylla - Canyon Drymary
Drymaria molluginea - Slim-Leaf Drymary
Eremogone fendleri - Fendler's Matted Sandwort
Moehringia macrophylla - Large-Leaf Grove-Sandwort
Silene antirrhina - Sleepy Catchfly
Silene latifolia - Bladder-Campion
Silene menziesii - White Catchfly
Silene noctiflora - Night-Flowering Catchfly
Spergularia salina - Saltmarsh Sandspurry
Stellaria longifolia - Long-Leaf Starwort
Stellaria longipes - Long-Stalk Starwort
Stellaria media - Common Chickweed
Paxistima myrsinites - Oregon Boxleaf
Atriplex argentea - Silverscale
Atriplex canescens - Four-Wing Saltbush
Chenopodium album - Lamb's-Quarters
Chenopodium atrovirens - Pinyon Goosefoot
Chenopodium berlandieri - Pit-Seed Goosefoot
Chenopodium capitatum - Strawberry-Blite
Chenopodium desiccatum - Arid-Land Goosefoot
Chenopodium fremontii - Fremont's Goosefoot
Chenopodium glaucum - Oak-Leaf Eurasian-Goosefoot
Chenopodium hians - Hians Goosefoot
Chenopodium incanum - Mealy Goosefoot
Chenopodium leptophyllum - Narrow-Leaf Goosefoot
Chenopodium neomexicanum - New Mexico Goosefoot
Chenopodium pratericola - Desert Goosefoot
Chenopodium rubrum - Red Eurasian-Goosefoot
Corispermum americanum - American Bugseed
Dysphania graveolens - Fetid Wormseed
Kochia prostrata - Prostrate Smotherweed
Kochia scoparia - Mexican-Fireweed
Monolepis nuttalliana - Nuttall's Poverty-Weed
Salsola collina - Slender Russian-Thistle
Salsola tragus - Prickly Russian-Thistle
Cleome serrulata - Rocky Mountain Beeplant
Commelina dianthifolia - Bird-Bill Dayflower
Tradescantia occidentalis - Prairie Spiderwort
Convolvulus arvensis - Field Bindweed
Cuscuta pentagona - Bush-Clover Dodder
Evolvulus nuttallianus - Shaggy Dwarf-Morning-Glory
Ipomoea cristulata - Trans-Pecos Morning-Glory
Ipomoea purpurea - Common Morning-Glory
Sedum cockerellii - Cockerell's Stonecrop
Cucurbita foetidissima - Missouri Gourd
Juniperus communis - Common Juniper
Juniperus deppeana - Alligator Juniper
Juniperus monosperma - One-Seed Juniper
Juniperus scopulorum - Rocky Mountain Juniper
Carex aquatilis - Leafy Tussock Sedge
Carex atherodes - Wheat Sedge
Carex bolanderi - Bolander's Sedge
Carex brevior - Short-Beak Sedge
Carex canescens - Hoary Sedge
Carex deweyana - Dewey's Sedge
Carex disperma - Soft-Leaf Sedge
Carex douglasii - Douglas' Sedge
Carex duriuscula - Spike-Rush Sedge
Carex emoryi - Emory's Sedge
Carex geophila - White Mountain Sedge
Carex hystericina - Porcupine Sedge
Carex interior - Inland Sedge
Carex microptera - Small-Wing Sedge
Carex nebrascensis - Nebraska Sedge
Carex occidentalis - Western Sedge
Carex pellita - Woolly Sedge
Carex praegracilis - Clustered Field Sedge
Carex rossii - Ross' Sedge
Carex siccata - Dry-Spike Sedge
Carex stipata - Stalk-Grain Sedge
Carex subfusca - Rusty Sedge
Carex utriculata - Northwest Territory Sedge
Carex wootonii - Wooton's Sedge
Cyperus fendlerianus - Fendler's Flat Sedge
Eleocharis palustris - Soft-Stem Spike-Rush
Schoenoplectus acutus - Hard-Stem Wood Club-Rush
Schoenoplectus americanus - Chairmaker's Wood Club-Rush
Schoenoplectus tabernaemontani - Soft-Stem Wood Club-Rush
Scirpus microcarpus - Red-Tinge Bulrush
Scirpus pallidus - Pale Bulrush
Dipsacus fullonum - Fuller's Teasel
Cystopteris bulbifera - Bulblet Bladder Fern
Ephedra torreyana - Torrey's Joint-Fir
Equisetum arvense - Field Horsetail
Equisetum hyemale var. affine - scouringrush horsetail
Equisetum laevigatum - Smooth Scouring-Rush
Arctostaphylos pungens - Mexican Manzanita
Monotropa hypopitys - Yellow Bird's-Nest
Pterospora andromedea - Woodland Pinedrops
Pyrola asarifolia - Pink Wintergreen
Pyrola chlorantha - Green-Flower Wintergreen
Pyrola minor - Snowline Wintergreen
Pyrola picta - White-Vein Wintergreen
Vaccinium cespitosum - Dwarf Blueberry
Vaccinium myrtillus - Whortle-Berry
Chamaesyce geyeri - Geyer's Sandmat
Chamaesyce glyptosperma - Rib-Seed Sandmat
Chamaesyce maculata - Spotted Sandmat
Chamaesyce serpyllifolia - Thyme-Leaf Sandmat
Croton texensis - Texas Croton
Euphorbia brachycera - Horned Spurge
Euphorbia cuphosperma - Hairy-Fruit Spurge
Euphorbia davidii - David's Spurge
Euphorbia fendleri - Fendler's Sandmat
Euphorbia parryi - Parry's Sandmat
Euphorbia revoluta - Thread-Stem Sandmat
Euphorbia serpyllifolia - Thyme-Leaf Sandmat
Amorpha fruticosa - False Indigo-Bush
Astragalus brandegeei - Brandegee's Milk-Vetch
Astragalus ceramicus - Painted Milk-Vetch
Astragalus flexuosus - Pliant Milk-Vetch
Astragalus lentiginosus - Freckled Milk-Vetch
Astragalus lonchocarpus - Great Rushy Milk-Vetch
Astragalus lotiflorus - Lotus Milk-Vetch
Astragalus praelongus - Stinking Milk-Vetch
Coronilla varia - Purple Crown-Vetch
Dalea aurea - Golden Prairie-Clover
Dalea candida - White Prairie-Clover
Dalea cylindriceps - Sandsage Prairie-Clover
Dalea formosa - Featherplume
Dalea jamesii - James' Prairie-Clover
Dalea lanata - Woolly Prairie-Clover
Dalea leporina - Fox-Tail Prairie-Clover
Dalea nana - Dwarf Prairie-Clover
Dalea purpurea - Violet Prairie-Clover
Glycyrrhiza lepidota - American Licorice
Lathyrus eucosmus - Bush Vetchling
Lotus wrightii - Wright's deervetch
Lupinus argenteus - Silver-Stem Lupine
Lupinus brevicaulis - Short-Stem Lupine
Lupinus kingii - King's Lupine
Lupinus pusillus - Rusty Lupine
Medicago lupulina - Black Medick
Melilotus officinalis - Yellow Sweet-Clover
Psoralidium tenuiflorum - slimflower scurfpea
Robinia neomexicana - New Mexico Locust
Sophora nuttalliana - Silky Necklacepod
Thermopsis montana var. montana - mountain goldenbanner
Trifolium hybridum - Alsike Clover