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Name of Above Organism:
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Abies lasiocarpa (Subalpine Fir)
Acer negundo (Ash-Leaf Maple)
Achnatherum nelsonii (Columbia needlegrass)
Aconitum columbianum (Columbian Monkshood)
Acroptilon repens (Russian knapweed)
Adoxa moschatellina (Muskroot)
Aesculus hippocastanum (Horse-Chestnut)
Agastache foeniculum (Blue Giant-Hyssop)
Agropyron cristatum subsp. pectinatum (Crested Wheat Grass)
Agropyron fragile (Siberian Wheat Grass)
Agrostis gigantea (Black Bent)
Agrostis idahoensis (Idaho bentgrass)
Agrostis perennans (Upland Bent)
Aliciella pinnatifida (Sticky Cheat Gily-Flower)
Alisma gramineum (narrowleaf water plantain)
Alisma triviale (Northern Water-Plantain)
Alliaria petiolata (Garlic-Mustard)
Allium geyeri (Geyer's Onion)
Allium sativum (Cultivated Garlic)
Almutaster pauciflorus (alkali marsh aster)
Alopecurus carolinianus (Tufted Meadow-Foxtail)
Alopecurus geniculatus (water foxtail)
Alyssum simplex (European alyssum)
Amaranthus arenicola (Sandhill Amaranth)
Amaranthus torreyi (Torrey's amaranthus)
Ambrosia acanthicarpa (ragweed)
Ambrosia artemisiifolia var. elatior (Annual Ragweed)
Ambrosia confertiflora (slimleaf bursage)
Amphiscirpus nevadensis (Nevada Club-Rush)
Amsinckia menziesii (Menzies' fiddleneck)
Anagallis arvensis (Scarlet Yellow-Loosestrife)
Androsace occidentalis (Western Rock-Jasmine)
Anemone canadensis (Canada Anemone)
Anemone cylindrica (Long-Head Thimbleweed)
Anemone quinquefolia var. quinquefolia (Nightcaps)
Anoda cristata (Crested Anoda)
Antennaria neglecta (Field Pussytoes)
Antennaria rosea subsp. confinis (rosy pussytoes)
Arabis hirsuta (hairy rockcress)
Arabis pycnocarpa (Hairy Eared Rockcress)
Arabis pycnocarpa var. pycnocarpa (Hairy Eared Rockcress)
Argentina anserina (silverweed cinquefoil)
Armeria maritima (Sea Thrift)
Artemisia campestris subsp. borealis (Boreal Wormwood)
Arundo donax (giant reed)
Asclepias asperula (spider milkweed)
Asclepias incarnata subsp. incarnata (Swamp Milkweed)
Asclepias subverticillata (Horsetail Milkweed)
Asclepias tuberosa (Butterfly Milkweed)
Asplenium adiantum-nigrum (Black Spleenwort)
Aster alpinus (Alpine Aster)
Astragalus ceramicus var. ceramicus (painted milkvetch)
Astragalus crassicarpus (groundplum milkvetch)
Astragalus desperatus (rimrock milkvetch)
Astragalus hallii (Hall's milkvetch)
Astragalus kentrophyta var. tegetarius (Mountain kentrophyta)
Astragalus missouriensis (Missouri Milk-Vetch)
Astragalus racemosus (Cream Milk-Vetch)
Astragalus scopulorum (Rocky Mountain milkvetch)
Astragalus sericoleucus (Silky Milk-Vetch)
Athyrium alpestre var. americanum (American Alpine Lady Fern)
Atriplex confertifolia (shadscale saltbush)
Atriplex hortensis (Garden Orache)
Azolla cristata (Crested Mosquito Fern)
Barbarea vulgaris (winter cress)
Berberis vulgaris (European Barberry)
Berteroa incana (Hoary False Madwort)
Besseya plantaginea (White River coraldrops)
Beta vulgaris (Sea Beet)
Betula papyrifera (Paper Birch)
Bidens cernua (Nodding Burr-Marigold)
Bidens tenuisecta (slimlobe beggarticks)
Bistorta vivipara (Serpent-Grass)
Bolboschoenus maritimus (cosmopolitan bulrush)
Bothriochloa bladhii (Australian Beard Grass)
Botrychium hesperium (Western Moonwort)
Bouteloua dactyloides (Buffalo Grass)
Bouteloua simplex (Matted Grama)
Brassica juncea (India mustard)
Brassica nigra (Black Mustard)
Brickellia eupatorioides (False Boneset)
Bromus frondosus (Weeping Brome)
Bromus lanatipes (Woolly Brome)
Bromus racemosus (Bald Brome)
Bromus sterilis (Poverty Brome)
Calamagrostis canadensis (Bluejoint)
Calamagrostis stricta subsp. inexpansa (Maui Reed Grass)
Caltha leptosepala (white marsh marigold)
Calypso bulbosa var. americana (Fairy Slipper)
Camelina microcarpa (littlepod false flax)
Camelina sativa (Gold-of-Pleasure)
Campanula parryi var. parryi (Parry's bellflower)
Campanula rapunculoides (Creeping Bellflower)
Campanula rotundifolia (Bluebell-of-Scotland)
Capsella bursa-pastoris (shepherd's purse)
Caragana aurantiaca (Dwarf Peashrub)
Carduus nutans (Nodding Plumeless-Thistle)
Carex aurea (golden sedge)
Carex backii (Back's Sedge)
Carex bella (Southwestern Showy Sedge)
Carex chalciolepis (Holm sedge)
Carex concinna (Low Northern Sedge)
Carex crawei (Crawe's Sedge)
Carex epapillosa (different nerve sedge)
Carex filifolia (threadleaf sedge)
Carex hallii (Deer Sedge)
Carex helleri (Heller's Sedge)
Carex lasiocarpa (Woolly-Fruit Sedge)
Carex lyngbyei (Lyngbye's Sedge)
Carex macloviana var. macloviana (Falkland Island Sedge)
Carex microglochin (False Uncinia Sedge)
Carex micropoda (Pyrenean Sedge)
Carex nardina (Nard Sedge)
Carex norvegica (Closed-Head Sedge)
Carex norvegica subsp. norvegica
Carex petasata (Liddon Sedge)
Carex praegracilis (Clustered Field Sedge)
Carex rupestris (Curly Sedge)
Carex scirpoidea (Canadian Single-Spike Sedge)
Carex scirpoidea subsp. pseudoscirpoidea
Carex scirpoidea subsp. scirpoidea
Carex siccata (dryspike sedge)
Carex sychnocephala (Many-Head Sedge)
Carex umbellata (Little-Snout Sedge)
Carex vesicaria (Lesser Bladder Sedge)
Carya ovata (Shag-Bark Hickory)
Castilleja integra (wholeleaf Indian paintbrush)
Castilleja linariifolia (Wyoming Indian paintbrush)
Castilleja occidentalis (Pale-Yellow Indian-Paintbrush)
Castilleja rhexiifolia (Rosy Indian-Paintbrush)
Castilleja sulphurea (Mogollon Indian-Paintbrush)
Celtis reticulata (sugarberry)
Cenchrus spinifex (Coastal Sandbur)
Centaurea stoebe subsp. micranthos (Spotted Knapweed)
Centaurium pulchellum (Branched Centaury)
Cerastium brachypodum (shortstalk chickweed)
Cercocarpus montanus (Alder-Leaf Mountain-Mahogany)
Chaenactis douglasii (Douglas' dustymaiden)
Chamaesyce stictospora (slimseed sandmat)
Chelidonium majus (Greater Celandine)
Chenopodium berlandieri (Pit-Seed Goosefoot)
Chenopodium capitatum var. parvicapitatum (Blite Goosefoot)
Chenopodium fremontii (Fremont's Goosefoot)
Chionophila jamesii (Rocky Mountain Snowlover)
Chloris cucullata (Hooded Windmill Grass)
Chloris virgata (feather fingergrass)
Chrysothamnus greenei (Greene's Rabbitbrush)
Cirsium arvense (Canadian Thistle)
Cirsium eatonii (Eaton's Thistle)
Cirsium eatonii var. eriocephalum (Alpine Thistle)
Cirsium scariosum (stemless thistle)
Cirsium tioganum (stemless thistle)
Cirsium undulatum (Wavy-Leaf Thistle)
Claytonia lanceolata (western springbeauty)
Claytonia rosea (western springbeauty)
Collinsia parviflora (Small-Flower Blue-Eyed Mary)
Convolvulus arvensis (Field Bindweed)
Corallorhiza maculata var. maculata (Summer Coralroot)
Corallorhiza striata (striped coralroot)
Corallorhiza wisteriana (Spring Coralroot)
Cordyline fruticosa (Tiplant)
Coreopsis lanceolata (Lance-Leaf Tickseed)
Cornus canadensis (Canadian Bunchberry)
Corydalis aurea (Scrambled-Eggs)
Cosmos bipinnatus (Garden Cosmos)
Crataegus macracantha (succulent hawthorn)
Cryptogramma acrostichoides (American Rockbrake)
Cuscuta approximata (Alfalfa Dodder)
Cylindropuntia imbricata (Tree Cholla)
Cynoglossum officinale (Hound's-Tongue)
Cyperus esculentus (yellow nutsedge)
Cyperus fendlerianus (Fendler's flatsedge)
Cyperus schweinitzii (Sand Flat Sedge)
Cypripedium parviflorum (Yellow Lady's-Slipper)
Dalea candida (White Prairie-Clover)
Danthonia californica (California oatgrass)
Daucus carota (Queen Anne's-Lace)
Delphinium barbeyi (Subalpine Larkspur)
Delphinium nuttallianum (twolobe larkspur)
Delphinium scopulorum (Rocky Mountain Larkspur)
Descurainia californica (Sierra tansymustard)
Descurainia sophia (Herb-Sophia)
Dianthus deltoides (Maiden Pink)
Dichanthelium acuminatum (Tapered Witch Grass)
Disakisperma dubium (green sprangletop)
Draba cuneifolia (wedgeleaf draba)
Draba spectabilis (showy draba)
Drymocallis arguta (Tall Woodbeauty)
Dysphania ambrosioides (Mexican-Tea)
Echinochloa crus-galli (Large Barnyard Grass)
Eleocharis engelmannii (Engelmann's spikerush)
Eleocharis parvula (dwarf spikerush)
Eleusine indica (Indian Goose Grass)
Elymus albicans (Montana Wild Rye)
Elymus trachycaulus (Slender Wild Rye)
Elymus trachycaulus subsp. trachycaulus (Slender Wild Rye)
Epilobium hornemannii (Hornemann's Willowherb)
Epipactis helleborine (Helleborine)
Equisetum arvense (Field Horsetail)
Equisetum hyemale var. affine (Tall Scouring-Rush)
Equisetum laevigatum (smooth horsetail)
Eragrostis barrelieri (Mediterranean lovegrass)
Eragrostis cilianensis (Stink Grass)
Eragrostis curvula (weeping lovegrass)
Eragrostis hypnoides (Teal Love Grass)
Eragrostis pilosa (Indian lovegrass)
Eragrostis spectabilis (Petticoat-Climber)
Eragrostis tef (Teff)
Eremopyrum triticeum (annual wheatgrass)
Ericameria parryi (Parry's Rubber-Rabbitbrush)
Erigeron bellidiastrum var. bellidiastrum (western daisy fleabane)
Erigeron canus (Hoary Fleabane)
Erigeron grandiflorus (onestem fleabane)
Erigeron pumilus (Shaggy Fleabane)
Erigeron tracyi (Running Fleabane)
Eriocoma hymenoides (Indian ricegrass)
Eriogonum alatum (winged buckwheat)
Eritrichium argenteum (Pale Alpine Forget-Me-Not)
Erodium cicutarium (Red-Stem Stork's-Bill)
Erysimum repandum (Spreading Wallflower)
Eschscholzia californica (California poppy)
Euphorbia dentata (Toothed Spurge)
Euphorbia esula (Leafy Spurge)
Euphorbia glyptosperma (ribseed sandmat)
Euphorbia maculata (Spotted Sandmat)
Euphorbia myrsinites (Myrtle Spurge)
Euphorbia prostrata (Prostrate Sandmat)
Euphorbia virgata (Wolf's-Milk)
Eustoma exaltatum (catchfly prairie gentian)
Euthamia graminifolia (Flat-Top Goldentop)
Fagus sylvatica (European Beech)
Fallopia convolvulus (Black-Bindweed)
Fragaria vesca (Woodland Strawberry)
Froelichia gracilis (Slender Snake-Cotton)
Galium odoratum (Sweet-Scented Bedstraw)
Gayophytum ramosissimum (Pinyon Groundsmoke)
Gentiana algida (Whitish Gentian)
Gentiana parryi (Parry's Gentian)
Gentianella amarella subsp. heterosepala (autumn dwarf gentian)
Gentianella tenella (Dane's dwarf gentian)
Geranium viscosissimum var. incisum
Geum aleppicum (Yellow Avens)
Geum macrophyllum var. perincisum (largeleaf avens)
Geum rivale (Purple Avens)
Geum rossii var. turbinatum (Ross' avens)
Ginkgo biloba (Maidenhair-Tree)
Glyceria striata (Fowl Manna Grass)
Hedysarum boreale (northern sweetvetch)
Helianthus pauciflorus (Stiff Sunflower)
Heliomeris multiflora var. nevadensis (Nevada goldeneye)
Heliopsis helianthoides (Smooth Oxeye)
Heracleum maximum (American Cow-Parsnip)
Herrickia glauca (gray aster)
Hesperostipa neomexicana (New Mexico feathergrass)
Heterotheca villosa var. minor (hairy false goldenaster)
Hibiscus trionum (Flower-of-An-Hour)
Holcus lanatus (Common Velvet Grass)
Holodiscus discolor var. discolor
Hordeum jubatum subsp. jubatum (Foxtail barley)
Hordeum murinum (Wall Barley)
Humulus lupulus var. neomexicanus (common hop)
Hydrophyllum fendleri (Fendler's Waterleaf)
Hymenopappus newberryi (Newberry's hymenopappus)
Hyoscyamus niger (Black Henbane)
Hypericum majus (Greater Canadian St. John's-Wort)
Ipomopsis tenuituba (slendertube skyrocket)
Jamesia americana var. americana (fivepetal cliffbush)
Juglans nigra (Black Walnut)
Juncus arcticus (Arctic Rush)
Juncus castaneus (Chestnut Rush)
Juncus xiphioides (irisleaf rush)
Juniperus horizontalis (Waukegan juniper)
Juniperus monosperma (oneseed juniper)
Juniperus scopulorum (Rocky Mountain Juniper)
Juniperus virginiana (Eastern Red-Cedar)
Koeleria pyramidata (prairie Junegrass)
Lactuca tatarica (Russian Blue Lettuce)
Laennecia schiedeana (pineland marshtail)
Lamium amplexicaule (Giraffehead)
Lemna gibba (Inflated Duckweed)
Leonurus cardiaca (Motherwort)
Lepidium campestre (field pepperweed)
Lepidium virginicum var. menziesii (peppergrass)
Ligusticum porteri var. porteri (Porter's licorice-root)
Linanthus parryae (Sandblossoms)
Linaria dalmatica (Dalmatian Toadflax)
Linaria vulgaris (Greater Butter-and-Eggs)
Linnaea borealis (twinflower)
Linnaea borealis subsp. americana (American Twinflower)
Linum lewisii (Lewis flax)
Lithospermum canescens (Hoary Puccoon)
Lolium perenne (perennial ryegrass)
Lomatium dissectum (fernleaf biscuitroot)
Lomatium macrocarpum (Large-Fruit Desert-Parsley)
Lomatium orientale (Northern Idaho biscuitroot)
Lotus corniculatus (ground honeysuckle)
Lupinus pusillus subsp. pusillus (rusty lupine)
Luzula comosa (Pacific Wood-Rush)
Lycopus uniflorus (Northern Water-Horehound)
Lycurus setosus (bristly wolfstail)
Lysimachia ciliata (Fringed Yellow-Loosestrife)
Lythrum alatum (Wing-Angle Loosestrife)
Lythrum salicaria (Purple Loosestrife)
Maianthemum racemosum (Feathery False Solomon's-Seal)
Maianthemum stellatum (Starry False Solomon's-Seal)
Malacothrix glabrata (smooth desertdandelion)
Malaxis monophyllos (White Adder's-Mouth Orchid)
Malus pumila (European Crabapple)
Melica nitens (Three-Flower Melic Grass)
Mertensia arizonica (Aspen Bluebells)
Mertensia franciscana (Franciscan Bluebells)
Micranthes odontoloma (brook saxifrage)
Microsteris gracilis (slender phlox)
Mirabilis glabra (smooth four o'clock)
Mirabilis multiflora (Colorado four o'clock)
Mitella stauropetala (Side-Flower Bishop's-Cap)
Monarda citriodora (Lemon Beebalm)
Monarda fistulosa var. menthaefolia
Montia chamissoi (water minerslettuce)
Muhlenbergia torreyi (ring muhly)
Musineon tenuifolium (Slender Wild Parsley)
Nama dichotoma (Wishbone Fiddleleaf)
Nassella viridula (Green Tussock Grass)
Nepeta cataria (Catnip)
Nothocalais cuspidata (Wavy-Leaf Prairie-Dandelion)
Nuttallanthus texanus (Texas toadflax)
Oenothera cespitosa var. cespitosa
Oenothera coronopifolia (Hairy-Throat Evening-Primrose)
Oenothera howardii (Howard's Evening-Primrose)
Onosmodium molle (Soft-Hair Marbleseed)
Opuntia phaeacantha (Dark-spined pricklypear)
Origanum vulgare (Wild Marjoram)
Orobanche ludoviciana (Louisiana broomrape)
Oxalis dillenii (Slender Yellow Wood-Sorrel)
Oxybasis glauca var. salina (Rocky Mountain goosefoot)
Oxytropis sericea var. sericea (white locoweed)
Packera aurea (Golden Groundsel)
Packera neomexicana var. mutabilis (New Mexico groundsel)
Packera streptanthifolia (Rocky Mountain Groundsel)
Palafoxia sphacelata (Othake)
Papaver radicatum (Arctic Poppy)
Papaver rhoeas (Shirley poppy)
Parnassia fimbriata (Fringed Grass-of-Parnassus)
Paronychia jamesii (James' Nailwort)
Pascopyrum smithii (Western-Wheat Grass)
Paspalum setaceum (thin paspalum)
Pediocactus simpsonii var. minor
Pediomelum esculentum (Large Indian-Breadroot)
Penstemon acuminatus (St. Joseph's-Wand)
Penstemon albidus (Red-Line Beardtongue)
Penstemon barbatus subsp. torreyi (Torrey's penstemon)
Penstemon glaber (Western Smooth Beardtongue)
Penstemon linarioides (toadflax penstemon)
Penstemon virgatus (Upright Blue Beardtongue)
Penstemon whippleanus (Whipple's penstemon)
Peritoma serrulata (Rocky Mountain Beeplant)
Persicaria amphibia (Water Smartweed)
Persicaria lapathifolia (Dock-Leaf Smartweed)
Petasites frigidus var. sagittatus
Phacelia hastata (Silver-Leaf Scorpion-Weed)
Phalaris arundinacea (Reed Canary Grass)
Phlox multiflora (Rocky Mountain Phlox)
Physaria ludoviciana (foothill bladderpod)
Physocarpus monogynus (Mountain Ninebark)
Picea engelmannii var. engelmannii
Pinus flexilis (Limber Pine)
Platanthera clavellata (Green Woodland Orchid)
Platanthera hyperborea (Northern Green Orchid)
Platanthera stricta (Slender Bog Orchid)
Poa bulbosa (Bulbous Blue Grass)
Poa pratensis (Kentucky Blue Grass)
Polanisia dodecandra subsp. trachysperma (Sandy-Seed Clammyweed)
Polemonium brandegeei (Brandegee's Jacob's-Ladder)
Polemonium pulcherrimum (Jacob's-ladder)
Polygonum argyrocoleon (silversheath knotweed)
Polygonum aviculare (Yard Knotweed)
Polygonum kelloggii (Kellogg's knotweed)
Polygonum polygaloides (milkwort knotweed)
Polygonum sawatchense (Johnston's knotweed)
Polypodium hesperium (Western Polypody)
Polypogon interruptus (ditch rabbitsfoot grass)
Populus alba (White Poplar)
Populus angustifolia (narrowleaf cottonwood)
Populus balsamifera (Balsam Poplar)
Populus deltoides (Eastern Cottonwood)
Populus nigra (Lombardy poplar)
Potamogeton illinoensis (Illinois Pondweed)
Potentilla concinna (elegant cinquefoil)
Potentilla gracilis (slender cinquefoil)
Potentilla gracilis var. fastigiata
Potentilla hippiana (Woolly Cinquefoil)
Potentilla pensylvanica (Pennsylvania Cinquefoil)
Potentilla pensylvanica var. pensylvanica (Pennsylvania cinquefoil)
Potentilla recta (Sulphur Cinquefoil)
Proboscidea louisianica (Ram's-Horn)
Prunella vulgaris subsp. lanceolata (Lance Selfheal)
Prunus virginiana var. demissa (western chokecherry)
Prunus virginiana var. virginiana (Choke Cherry)
Pseudocymopterus montanus (alpine false springparsley)
Pseudognaphalium canescens (Wright's cudweed)
Pseudognaphalium stramineum (cottonbatting plant)
Pseudostellaria jamesiana (tuber starwort)
Pulsatilla patens
Pyrrocoma lanceolata (Lance-Leaf Goldenweed)
Quercus bicolor (Swamp White Oak)
Ranunculus abortivus (Kidney-Leaf Buttercup)
Ranunculus cardiophyllus (heartleaf buttercup)
Ranunculus flammula var. flammula (greater creeping spearwort)
Ranunculus flammula var. ovalis
Ranunculus glaberrimus (Sagebrush Buttercup)
Ranunculus ranunculinus (Tadpole Buttercup)
Rhamnus cathartica (European Buckthorn)
Rhaponticum repens (Russian knapweed)
Rhus typhina (Stag-Horn Sumac)
Ribes americanum (Wild Black Currant)
Ribes inerme (whitestem gooseberry)
Ribes inerme var. inerme (whitestem gooseberry)
Robinia pseudoacacia (Black Locust)
Rorippa palustris subsp. hispida (Marsh Yellowcress)
Rorippa sylvestris (Creeping Yellowcress)
Rosa acicularis (Prickly Rose)
Rosa multiflora (Multiflora Rose)
Rosa rubiginosa var. rubiginosa
Rotala ramosior (Lowland Toothcup)
Rubus armeniacus (Himalaya Blackberry)
Rubus idaeus subsp. melanolasius (Gray-Leaf Red Raspberry)
Rubus parviflorus (Western Thimble-Berry)
Rudbeckia triloba (Brown-Eyed-Susan)
Rumex acetosella (Common Sheep Sorrel)
Rumex altissimus (Pale Dock)
Rumex crispus (Curly Dock)
Rumex occidentalis (Western Dock)
Rumex salicifolius (Willow Dock)
Rumex venosus (Veiny Dock)
Ruppia cirrhosa (spiral ditchgrass)
Sabulina michauxii (Michaux's Mock Sandwort)
Sagittaria brevirostra (Short-Beak Arrowhead)
Sagittaria cuneata (Arum-Leaf Arrowhead)
Sagittaria latifolia (Duck-Potato)
Sagittaria montevidensis subsp. calycina (Hooded Arrowhead)
Salix exigua (narrowleaf willow)
Salix exigua var. exigua
Salix interior (Sandbar Willow)
Salix pentandra (Bay-Leaf Willow)
Salvia azurea (Azure-Blue Sage)
Sambucus canadensis (Common Elderberry)
Sambucus cerulea (blue elderberry)
Sanicula marilandica (Maryland Black-Snakeroot)
Saxifraga rivularis (weak saxifrage)
Schedonorus pratensis (meadow ryegrass)
Schizachyrium scoparium (Little False Bluestem)
Sclerochloa dura (common hardgrass)
Scutellaria brittonii (Britton's Skullcap)
Scutellaria resinosa (Sticky Skullcap)
Securigera varia (purple crownvetch)
Sedum integrifolium
Selaginella scopulorum (Rocky Mountain spikemoss)
Senecio flaccidus var. flaccidus (threadleaf ragwort)
Senecio integerrimus var. exaltatus
Senecio serra (Tall Ragwort)
Senecio spartioides (broom groundsel)
Senecio vulgaris (Old-Man-in-the-Spring)
Shepherdia canadensis (russet buffaloberry)
Sidalcea neomexicana (salt spring checkerbloom)
Silene dichotoma (Forked Catchfly)
Silene drummondii subsp. drummondii (Drummond's campion)
Silene latifolia subsp. alba (white campion)
Sisymbrium orientale (Indian hedgemustard)
Solanum americanum (American Black Nightshade)
Solanum dulcamara (Bitter Nightshade)
Solanum triflorum (cutleaf nightshade)
Solidago canadensis var. scabra (Canada goldenrod)
Solidago juncea (Early Goldenrod)
Solidago multiradiata (Rocky Mountain Goldenrod)
Solidago sempervirens (Seaside Goldenrod)
Solidago simplex var. simplex (Mt. Albert goldenrod)
Solidago speciosa (Showy Goldenrod)
Solidago uliginosa (Fall Goldenrod)
Sorghum halepense (Johnson Grass)
Spergularia media (Satin-Flower)
Sphenopholis obtusata (Prairie Wedgescale)
Spiranthes diluvialis (Diluvim Ladies'-Tresses)
Sporobolus texanus (Texas Dropseed)
Stachys cordata (Heart-Leaf Hedge-Nettle)
Stachys palustris (Woundwort)
Stellaria graminea (Grass-Leaf Starwort)
Stuckenia pectinata (Sago False Pondweed)
Swertia perennis (Felwort)
Symphoricarpos oreophilus (Mountain Snowberry)
Symphyotrichum ascendens (western aster)
Symphyotrichum boreale (northern bog aster)
Symphyotrichum ciliatum (Rayless alkali aster)
Symphyotrichum eatonii (Eaton's aster)
Synthyris plantaginea (Arizona coraldrops)
Syringa vulgaris (Common Lilac)
Tanacetum parthenium (Feverfew)
Taraxacum officinale (Common Dandelion)
Tetraneuris acaulis (Arizona Actinea)
Tetraneuris acaulis var. acaulis (stemless four-nerve daisy)
Thalictrum revolutum (Waxyleaf Meadow-Rue)
Thaspium trifoliatum (Meadow-Parsnip)
Thinopyrum elongatum (Eurasian Quack Grass)
Torreyochloa pallida var. pauciflora (pale false mannagrass)
Townsendia incana (Hoary Townsend Daisy)
Toxicodendron pubescens (Eastern Poison-Oak)
Trifolium parryi (Parry's Clover)
Triodanis perfoliata (Clasping-Leaf Venus'-Looking-Glass)
Typha domingensis (southern cattail)
Typha latifolia (broadleaf cattail)
Ulmus americana (American Elm)
Utricularia macrorhiza (Greater Bladderwort)
Vaccinium cespitosum (Dwarf Blueberry)
Valeriana capitata (Clustered Valerian)
Verbascum blattaria (Moth Mullein)
Verbascum thapsus (Great Mullein)
Verbena bracteata (Carpet Vervain)
Vicia ludoviciana (Louisiana Vetch)
Vicia ludoviciana subsp. ludoviciana (Louisiana vetch)
Vicia villosa (Winter Vetch)
Vinca minor (Lesser Periwinkle)
Viola adunca (hookedspur violet)
Viola labradorica (Labrador violet)
Viola nuttallii (Nuttall's violet)
Viola pedatifida (prairie violet)
Viola praemorsa (Upland Yellow Violet)
Viola selkirkii (Great-Spur Violet)
Viola sororia (Hooded Blue Violet)
Vulpia octoflora (sixweeks fescue)
Yucca glauca (Soapweed Yucca)
Zigadenus elegans (Mountain Deathcamas)
Zigadenus venenosus (Meadow Poison Camus)
Zuckia brandegeei (siltbush)
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