Home » Search: All Plants Native in West-Central Semi-Arid Prairies

1636 Plants Found

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Ordered by scientific name.

Scientific Name	Common Name	†	Map‡
Myosurus minimus L.	Tiny Mousetail
Myriophyllum pinnatum "(Walter) Britton	cutleaf watermilfoil
Myriophyllum sibiricum Kom.	shortspike watermilfoil
Myriophyllum verticillatum L.	whorl-leaf watermilfoil
Nabalus asper (Michx.) Torr. & A.Gray	Rough Rattlesnakeroot
Nabalus racemosus (Michx.) Hook.	Purple Rattlesnakeroot
Najas flexilis (Willd.) Rostk. & Schmidt	Nodding Waternymph
Najas guadalupensis (Spreng.) Magnus	southern waternymph
Najas marina L.	spiny naiad
Nassella viridula (Trin.) Barkworth	Green Needlegrass
Navarretia saximontana S.C. Spencer	Rocky Mountain Pincushion-plant
Nemophila breviflora A. Gray	basin nemophila
Neottia convallarioides (Sw.) Rich.	Broadlipped Twayblade
Noccaea fendleri (A. Gray) Holub	Fendler's Pennycress
Nothocalais cuspidata (Pursh) Greene	prairie false dandelion
Nothocalais nigrescens (L.F. Hend.) A. Heller	speckled false dandelion
Nothocalais troximoides (A. Gray) Greene	sagebrush false dandelion
Nuphar polysepala Engelm.	Great Yellow Pond-Lily
Nuphar variegata Engelm. ex Durand	Variegated Pond-Lily
Nuttallanthus texanus (Scheele) D.A. Sutton	Texas Toadflax
Nymphaea odorata Aiton	American White Waterlily
Oenothera albicaulis Pursh	Whitest Evening Primrose
Oenothera biennis L.	Common Evening Primrose
Oenothera caespitosa Nutt.	Tufted Evening Primrose
Oenothera coronopifolia Torr. & A. Gray	crownleaf evening primrose
Oenothera curtiflora W.L.Wagner & Hoch	Velvetweed
Oenothera filiformis (Small) W.L. Wagner & Hoch	Longflower Beeblossom
Oenothera flava (A. Nelson) Garrett	yellow evening primrose
Oenothera laciniata Hill	Cutleaf Evening Primrose
Oenothera nuttallii Sweet	Nuttall's Evening Primrose
Oenothera pallida Lindl.	pale evening primrose
Oenothera pallida subsp. latifolia (Rydb.) Munz	Mountain Evening Primrose
Oenothera perennis L.	Little Evening Primrose
Oenothera rhombipetala Nutt. ex Torr. & A. Gray	Fourpoint Evening Primrose
Oenothera serrulata Nutt.	Yellow Sundrops
Oenothera suffrutescens (Moc. & Sessé ex Ser.) W.L.Wagner & Hoch	Scarlet Beeblossom
Oenothera villosa Thunb.	Hairy Evening Primrose
Oligoneuron rigidum (L.) Small	Stiff Goldenrod
Onoclea sensibilis L.	Sensitive Fern
Oonopsis multicaulis (Nutt.) Greene	Branched False Goldenweed
Ophioglossum pusillum Raf.	northern adderstongue
Opuntia fragilis (Nutt.) Haw.	brittle pricklypear
Opuntia macrorhiza Engelm.	twistspine pricklypear
Opuntia polyacantha Haw.	plains pricklypear
Oreostemma alpigenum (Torr. & A. Gray) Greene	tundra aster
Orobanche fasciculata Nutt.	clustered broomrape
Orobanche ludoviciana Nutt.	Louisiana Broomrape
Orobanche uniflora L.	oneflowered broomrape
Orthilia secunda (L.) House	sidebells wintergreen
Orthocarpus luteus Nutt.	yellow owl's-clover
Oryzopsis asperifolia Michx.	roughleaf ricegrass
Osmorhiza berteroi DC.	sweetcicely
Osmorhiza claytonii (Michx.) C.B. Clarke	Clayton's sweetroot
Osmorhiza depauperata Phil.	bluntseed sweetroot
Osmorhiza longistylis (Torr.) DC.	longstyle sweetroot
Osmorhiza occidentalis (Nutt. ex Torr. & A. Gray) Torr.	western sweetroot
Ostrya virginiana (Mill.) K. Koch	American Hophornbeam
Oxalis dillenii Jacq.	Slender Yellow Woodsorrel
Oxalis violacea L.	Violet Woodsorrel
Oxybasis rubra (L.) S.Fuentes, Uotila & Borsch	Red Goosefoot
Oxyria digyna (L.) Hill	Alpine Mountainsorrel
Oxytropis besseyi (Rydb.) Blank.	Bessey's locoweed
Oxytropis borealis DC.	boreal locoweed
Oxytropis campestris (L.) DC.	Field Locoweed
Oxytropis deflexa (Pall.) DC.	nodding locoweed
Oxytropis lagopus Nutt.	haresfoot locoweed
Oxytropis lambertii Pursh	purple locoweed
Oxytropis monticola A. Gray	yellowflower locoweed
Oxytropis multiceps Nutt.	Nuttall's Oxytrope
Oxytropis sericea Nutt.	white locoweed
Oxytropis splendens Douglas ex Hook.	showy locoweed
Packera cana (Hook.) W.A. Weber & Á. Löve	woolly groundsel
Packera paupercula (Michx.) Á. Löve & D. Löve	Balsam Groundsel
Packera plattensis (Nutt.) W.A. Weber & Á. Löve	prairie groundsel
Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve	falsegold groundsel
Packera streptanthifolia (Greene) W.A. Weber & Á. Löve	Rocky Mountain Groundsel
Packera subnuda (DC.) D.K. Trock & T.M. Barkley	Buek's groundsel
Packera thurberi (A.Gray) B.L.Turner	Threetooth Ragwort
Palafoxia sphacelata (Nutt. ex Torr.) Cory	othake
Panicum capillare L.	Witchgrass
Panicum dichotomiflorum Michx.	Fall Panicgrass
Panicum virgatum L.	Switchgrass
Parietaria pensylvanica Muhl. ex Willd.	Pennsylvania Pellitory
Parnassia fimbriata K.D. Koenig	Fringed Grass of Parnassus
Parnassia palustris L.	marsh grass of Parnassus
Paronychia depressa (Torr. & A. Gray) Nutt. ex A. Nelson	Spreading Nailwort
Paronychia sessiliflora Nutt.	creeping nailwort
Parthenocissus quinquefolia (L.) Planch.	Virginia Creeper
Parthenocissus vitacea (Knerr) Hitchc.	Woodbine
Pascopyrum smithii (Rydb.) Á. Löve	Western Wheatgrass
Paspalum setaceum Michx.	thin paspalum
Pectis angustifolia Torr.	lemonscent
Pedicularis bracteosa Benth.	bracted lousewort
Pedicularis contorta Benth.	coiled lousewort
Pedicularis cystopteridifolia Rydb.	Fernleaved Pedicularis
Pedicularis groenlandica Retz.	Elephanthead Lousewort
Pedicularis lanceolata Michx.	Swamp Lousewort
Pedicularis parryi A. Gray	Parry's Lousewort
Pediocactus simpsonii (Engelm.) Britton & Rose	Mountain Ball Cactus
Pediomelum argophyllum (Pursh) J. Grimes	silverleaf Indian breadroot
Pediomelum cuspidatum (Pursh) Rydb.	largebract Indian breadroot
Pediomelum digitatum (Nutt. ex Torr. & A. Gray) Isely	palmleaf Indian breadroot
Pediomelum esculentum (Pursh) Rydb.	large Indian breadroot
Pediomelum hypogaeum (Nutt. ex Torr. & A. Gray) Rydb.	subterranean Indian breadroot
Pediomelum linearifolium (Torr. & A. Gray) J. Grimes	Narrowleaf Indian Breadroot
Pediomelum tenuiflorum (Pursh) A.N.Egan	Slimflower Scurfpea
Pellaea atropurpurea (L.) Link	Purple Cliffbrake
Pellaea breweri D.C. Eaton	Brewer's cliffbrake
Pellaea glabella Mett. ex Kuhn	smooth cliffbrake
Penstemon albertinus Greene	Alberta beardtongue
Penstemon albidus Nutt.	white penstemon
Penstemon angustifolius Nutt. ex Pursh	Broadbeard Beardtongue
Penstemon attenuatus Douglas ex Lindl.	Sulphur Penstemon
Penstemon bradburyi Pursh	Large-flowered Beardtongue
Penstemon confertus Douglas ex Lindl.	Yellow Penstemon
Penstemon eriantherus Pursh	Fuzzytongue Penstemon
Penstemon glaber Pursh	Sawsepal Penstemon
Penstemon gracilis Nutt.	Lilac Penstemon
Penstemon haydenii S. Watson	Blowout Beardtongue
Penstemon laricifolius Hook. & Arn.	Larchleaf Beardtongue
Penstemon lyallii (A. Gray) A. Gray	Lyall's beardtongue
Penstemon montanus Greene	Cordroot Beardtongue
Penstemon nitidus Douglas ex Benth.	waxleaf penstemon
Penstemon procerus Douglas ex Graham	littleflower penstemon
Penstemon rydbergii A. Nelson	Rydberg's Penstemon
Penstemon tubaeflorus Nutt.	White Wand Beardtongue
Penthorum sedoides L.	ditch stonecrop
Perideridia gairdneri (Hook. & Arn.) Mathias	Gardner's yampah
Persicaria amphibia (L.) Delarbre	Water Knotweed
Persicaria hydropiperoides (Michx.) Small	Swamp Smartweed
Persicaria lapathifolia (L.) Delarbre	Pale Smartweed
Persicaria punctata (Elliott) Small	Dotted Smartweed
Persicaria sagittata (L.) H.Gross	Arrowleaf Tearthumb
Petasites frigidus (L.) Fr.	arctic sweet coltsfoot
Petrophytum caespitosum (Nutt.) Rydb.	mat rockspirea
Phacelia hastata Douglas ex Lehm.	Silverleaf Phacelia
Phacelia heterophylla Pursh	varileaf phacelia
Phacelia linearis (Pursh) Holz.	threadleaf phacelia
Phacelia sericea (Graham) A. Gray	silky phacelia
Phacelia thermalis Greene	Heated Phacelia
Phalaris arundinacea L.	Reed Canary Grass
Phemeranthus calycinus (Engelm.) Kiger	Largeflower Fameflower
Phemeranthus confertiflorus (Greene) Hershkovitz	New Mexico fameflower
Phemeranthus parviflorus (Nutt.) Kiger	sunbright
Phemeranthus rugospermus (Holz.) Kiger	Prairie Fameflower
Philadelphus lewisii Pursh	Lewis' mock orange
Phleum alpinum L.	Alpine Timothy
Phlox alyssifolia Greene	alyssumleaf phlox
Phlox andicola E.E. Nelson	prairie phlox
Phlox hoodii Richardson	spiny phlox
Phlox kelseyi Britton	Kelsey's Phlox
Phlox longifolia Nutt.	longleaf phlox
Phlox multiflora A. Nelson	flowery phlox
Phlox pulvinata (Wherry) Cronquist	Cushion Phlox
Phragmites americanus (Saltonst., P.M.Peterson & Soreng) A.Haines	American Common Reed
Phryma leptostachya L.	American lopseed
Phyla cuneifolia (Torr.) Greene	wedgeleaf
Phyla lanceolata (Michx.) Greene	Lanceleaf Fogfruit
Phyllodoce empetriformis (Sm.) D. Don	pink mountainheath
Physalis hederifolia A. Gray	ivyleaf groundcherry
Physalis heterophylla Nees	Clammy Groundcherry
Physalis longifolia Nutt.	Longleaf Groundcherry
Physalis pumila Nutt.	Dwarf Groundcherry
Physalis pumila var. hispida (Waterf.) J.R.Sullivan	Prairie Groundcherry
Physalis virginiana Mill.	Virginia groundcherry
Physaria acutifolia Rydb.	sharpleaf twinpod
Physaria brassicoides Rydb.	Double Twinpod
Physaria didymocarpa (Hook.) A. Gray	common twinpod
Physaria ludoviciana (Nutt.) O'Kane & Al-Shehbaz	Foothill Bladderpod
Physaria reediana O'Kane & Al-Shehbaz	Reed's Twinpod
Physaria saximontana Rollins	Fremont County twinpod
Physocarpus malvaceus (Greene) Kuntze	mallow ninebark
Physocarpus monogynus (Torr.) J.M. Coult.	mountain ninebark
Physocarpus opulifolius	Common Ninebark
Physostegia ledinghamii (B. Boivin) Cantino	Ledingham's false dragonhead
Physostegia parviflora Nutt. ex A. Gray	Western False Dragonhead
Phytolacca americana L.	American Pokeweed	✓
Picea engelmannii Parry ex Engelm.	Engelmann Spruce
Picea glauca (Moench) Voss	White Spruce	✓
Picradeniopsis oppositifolia (Nutt.) Rydb. ex Britton	oppositeleaf bahia
Picradeniopsis woodhousei (A. Gray) Rydb.	Woodhouse's Bahia
Pilea fontana (Lunell) Rydb.	Black-fruited Clearweed
Pinus albicaulis Engelm.	Whitebark Pine
Pinus contorta Douglas ex Loudon	Lodgepole Pine
Pinus flexilis James	Limber Pine
Pinus ponderosa Lawson & C. Lawson	Ponderosa Pine
Piperia unalascensis (Spreng.) Rydb.	slender-spire orchid
Piptatheropsis exigua (Thurb.) Romasch., P.M. Peterson & R.J. Soreng	Little Ricegrass
Piptatheropsis micrantha "(Trin. & Rupr.) Romasch.	littleseed ricegrass
Piptatheropsis pungens "(Torr.) Romasch.	mountain ricegrass
Plagiobothrys leptocladus (Greene) I.M. Johnst.	finebranched popcornflower
Plantago canescens M.F. Adams	gray pubescent plantain
Plantago eriopoda Torr.	redwool plantain
Plantago patagonica Jacq.	Woolly Plantain
Plantago rugelii Decne.	Blackseed Plantain
Platanthera aquilonis Sheviak	northern green orchid
Platanthera huronensis (Nutt.) Lindl.	Huron green orchid
Platanthera obtusata (Banks ex Pursh) Lindl.	bluntleaved orchid
Platanthera praeclara Sheviak & Bowles	Great Plains white fringed orchid
Platanthera stricta Lindl.	slender bog orchid
Poa abbreviata R. Br.	short bluegrass
Poa alpina L.	Alpine Bluegrass
Poa arctica R. Br.	arctic bluegrass
Poa arida Vasey	Plains Bluegrass
Poa cusickii Vasey	Cusick's Bluegrass
Poa fendleriana (Steud.) Vasey	muttongrass
Poa glauca Vahl	Glaucous Bluegrass
Poa leptocoma Trin.	marsh bluegrass
Poa lettermanii Vasey	Letterman's bluegrass
Poa palustris L.	Fowl Bluegrass
Poa reflexa Vasey & Scribn. ex Vasey	Nodding Bluegrass
Poa secunda J. Presl	Sandberg Bluegrass
Poa wheeleri Vasey	Wheeler's Bluegrass
Polanisia dodecandra (L.) DC.	redwhisker clammyweed
Polanisia jamesii (Torr. & A. Gray) Iltis	James' clammyweed
Polemonium pulcherrimum Hook.	Jacob's-ladder
Polemonium viscosum Nutt.	Sticky Polemonium
Polygonatum biflorum (Walter) Elliott	smooth Solomon's seal
Polygonum achoreum S.F. Blake	leathery knotweed
Polygonum douglasii Greene	Douglas' knotweed
Polygonum erectum L.	Erect Knotweed
Polygonum ramosissimum Michx.	Bushy Knotweed
Polygonum tenue Michx.	pleatleaf knotweed
Polystichum lonchitis (L.) Roth	Northern Hollyfern
Populus ×jackii	Balm-of-Gilead
Populus angustifolia James	Narrowleaf Cottonwood
Populus balsamifera L.	Balsam Poplar
Populus deltoides W. Bartram ex Marshall	Eastern Cottonwood
Populus tremuloides Michx.	Quaking Aspen
Potamogeton alpinus Balbis	alpine pondweed
Potamogeton amplifolius Tuck.	largeleaf pondweed
Potamogeton diversifolius Raf.	waterthread pondweed
Potamogeton foliosus Raf.	Leafy Pondweed
Potamogeton friesii Rupr.	Fries' pondweed
Potamogeton gramineus L.	variableleaf pondweed
Potamogeton illinoensis Morong	Illinois Pondweed
Potamogeton natans L.	floating pondweed
Potamogeton nodosus Poir.	longleaf pondweed
Potamogeton praelongus Wulfen	whitestem pondweed
Potamogeton pusillus L.	small pondweed
Potamogeton richardsonii (Benn.) Rydb.	Richardson's pondweed
Potamogeton spirillus Tuck.	spiral pondweed
Potamogeton strictifolius Benn.	narrowleaf pondweed
Potamogeton zosteriformis Fernald	flatstem pondweed
Potentilla biennis Greene	biennial cinquefoil
Potentilla bipinnatifida Douglas ex Hook.	tansy cinquefoil
Potentilla concinna Richardson	elegant cinquefoil
Potentilla effusa Douglas ex Lehm.	Branched Cinquefoil
Potentilla gracilis Douglas ex Hook.	slender cinquefoil
Potentilla hippiana Lehm.	Woolly Cinquefoil
Potentilla macounii Rydb.	Macoun's Cinquefoil
Potentilla nivea L.	Snow Cinquefoil
Potentilla norvegica L.	Rough Cinquefoil
Potentilla ovina Macoun ex J.M. Macoun	sheep cinquefoil
Potentilla pensylvanica L.	Pennsylvania cinquefoil
Potentilla plattensis Nutt.	Platte River cinquefoil
Potentilla pulcherrima Lehm.	beautiful cinquefoil
Potentilla rivalis Nutt.	Brook Cinquefoil
Potentilla supina L.	Paradox Cinquefoil
Primula conjugens (Greene) A.R.Mast & Reveal	Bonneville Shootingstar
Primula incana M.E. Jones	silvery primrose
Primula pauciflora (Durand) A.R.Mast & Reveal	Darkthroat Shootingstar
Prosartes trachycarpa S. Watson	roughfruit fairybells
Prunella vulgaris L.	Common Selfheal
Prunus americana Marshall	American Plum
Prunus pensylvanica L. f.	Pin Cherry
Prunus pumila L.	Sandcherry
Prunus virginiana L.	Chokecherry
Pseudognaphalium jaliscense (Greenm.) Anderb.	Jalisco rabbit-tobacco
Pseudognaphalium macounii (Greene) Kartesz	Macoun's cudweed
Pseudoroegneria spicata (Pursh) Á. Löve	Bluebunch Wheatgrass
Pseudotsuga menziesii (Mirb.) Franco	Douglas Fir
Psilocarphus brevissimus Nutt.	short woollyheads
Pteridium aquilinum (L.) Kuhn	western brackenfern
Pterospora andromedea Nutt.	woodland pinedrops
Puccinellia nuttalliana (Schult.) Hitchc.	Nuttall's Alkaligrass
Pulsatilla patens (L.) Mill.	Eastern Pasqueflower
Purshia tridentata (Pursh) DC.	Antelope Bitterbrush
Pycnanthemum virginianum (L.) T. Dur. & B.D. Jacks. ex B.L. Rob. & Fernald	Virginia mountainmint
Pyrola asarifolia Michx.	Liverleaf Wintergreen
Pyrola chlorantha Sw.	Greenflowered Wintergreen
Pyrola elliptica Nutt.	waxflower shinleaf
Pyrola minor L.	snowline wintergreen
Pyrola picta Sm.	whiteveined wintergreen
Pyrrocoma lanceolata (Hook.) Greene	lanceleaf goldenweed
Pyrrocoma uniflora (Hook.) Greene	Plantain Goldenweed
Quercus macrocarpa Michx.	Bur Oak	✓
Ranunculus abortivus L.	Small-Flowered Buttercup
Ranunculus acriformis A. Gray	sharpleaf buttercup
Ranunculus aquatilis L.	white water crowfoot
Ranunculus cardiophyllus Hook.	heartleaf buttercup
Ranunculus cymbalaria Pursh	Alkali Buttercup
Ranunculus eschscholtzii Schltdl.	Eschscholtz's Buttercup
Ranunculus eschscholtzii var. eximius (Greene) L.D.Benson	Tundra Buttercup
Ranunculus flabellaris Raf.	Yellow Water Buttercup
Ranunculus flammula L.	greater creeping spearwort
Ranunculus glaberrimus Hook.	sagebrush buttercup
Ranunculus gmelinii DC.	Gmelin's buttercup
Ranunculus inamoenus Greene	Graceful Buttercup
Ranunculus longirostris Godr.	Longbeak Buttercup
Ranunculus macounii Britton	Macoun's buttercup
Ranunculus pedatifidus Sm.	surefoot buttercup
Ranunculus pensylvanicus L. f.	Pennsylvania buttercup
Ranunculus pygmaeus Wahlenb.	Pygmy Buttercup
Ranunculus rhomboideus Goldie	Labrador Buttercup
Ranunculus sceleratus L.	cursed buttercup
Ranunculus trichophyllus Chaix	threadleaf crowfoot
Ranunculus uncinatus D. Don ex G. Don	woodland buttercup
Ratibida columnifera (Nutt.) Wooton & Standl.	Upright Prairie Coneflower
Redfieldia flexuosa (Thurb.) Vasey	blowout grass
Rhamnus lanceolata Pursh	lanceleaf buckthorn
Rhodiola integrifolia Raf.	ledge stonecrop
Rhodiola rhodantha (A. Gray) H. Jacobsen	Redpod Stonecrop
Rhododendron columbianum (Piper) Harmaja	Western Labrador Tea
Rhus aromatica Aiton	Fragrant Sumac
Rhus glabra L.	Smooth Sumac
Rhus trilobata Nutt.	Skunkbush Sumac
Ribes americanum Mill.	American Black Currant
Ribes aureum Pursh	Golden Currant
Ribes cereum Douglas	wax currant
Ribes hirtellum Michx.	hairystem gooseberry
Ribes inerme Rydb.	whitestem gooseberry
Ribes lacustre (Pers.) Poir.	prickly currant
Ribes missouriense Nutt.	Missouri Gooseberry
Ribes oxyacanthoides L.	Canadian gooseberry
Ribes viscosissimum Pursh	sticky currant
Rorippa calycina (Engelm.) Rydb.	Persistent Sepal Yellowcress
Rorippa curvipes Greene	bluntleaf yellowcress
Rorippa palustris (L.) Besser	bog yellowcress
Rorippa sinuata (Nutt.) Hitchc.	spreading yellowcress
Rorippa tenerrima Greene	Modoc yellowcress
Rosa acicularis Lindl.	Prickly Rose
Rosa arkansana Porter	prairie rose
Rosa blanda Aiton	Smooth Rose
Rosa woodsii Lindl.	Woods' Rose
Rotala ramosior (L.) Koehne	lowland rotala
Rubus leucodermis Douglas ex Torr. & A. Gray	whitebark raspberry
Rubus parviflorus Nutt.	thimbleberry
Rubus pubescens Raf.	dwarf red blackberry
Rubus strigosus Michx.	American Red Raspberry
Rudbeckia hirta L.	Black-eyed Susan	✓
Rudbeckia laciniata L.	Cutleaf Coneflower	✓
Rumex altissimus Alph. Wood	pale dock
Rumex lapponicus (Hiitonen) Czern.	dock
Rumex occidentalis S. Watson	Western Dock
Rumex orbiculatus A. Gray	Greater Water Dock
Rumex paucifolius Nutt.	alpine sheep sorrel
Rumex venosus Pursh	Veiny Dock
Ruppia cirrhosa (Petagna) Grande	spiral ditchgrass
Sabulina austromontana (S.J.Wolf & Packer) Dillenb. & Kadereit	Columbian Stitchwort
Sabulina rubella (Wahlenb.) Dillenb. & Kadereit	Beautiful Sandwort
Sagina saginoides (L.) Karst.	arctic pearlwort
Sagittaria brevirostra Mack. & Bush	shortbeak arrowhead
Sagittaria calycina Engelm.	Hooded Arrowhead
Sagittaria cuneata Sheldon	arumleaf arrowhead
Sagittaria graminea Michx.	Grassy Arrowhead
Sagittaria latifolia Willd.	Broadleaf Arrowhead
Sagittaria rigida Pursh	sessilefruit arrowhead
Salicornia rubra A. Nelson	red swampfire
Salix amygdaloides Andersson	peachleaf willow
Salix barclayi Andersson	Barclay's Willow
Salix bebbiana Sarg.	Bebb Willow
Salix boothii Dorn	Booth's willow
Salix brachycarpa Nutt.	Shortfruit Willow
Salix candida Flueggé ex Willd.	sageleaf willow
Salix discolor Muhl.	American Pussy Willow
Salix drummondiana Barratt ex Hook.	Drummond's willow
Salix eriocephala Michx.	Missouri River Willow
Salix exigua Nutt.	narrowleaf willow
Salix farriae C.R. Ball	Farr's willow
Salix geyeriana Andersson	Geyer willow
Salix glauca L.	grayleaf willow
Salix humilis Marshall	Prairie Willow
Salix interior Rowlee	Sandbar Willow
Salix lucida Muhl.	Shining Willow
Salix lutea Nutt.	yellow willow
Salix nivalis Hook.	snow willow
Salix petiolaris Sm.	meadow willow
Salix petrophila Rydb.	alpine willow
Salix planifolia Pursh	Diamondleaf Willow
Salix pseudomonticola C.R. Ball	false mountain willow
Salix scouleriana Barratt ex Hook.	Scouler's willow
Salix serissima (L.H. Bailey) Fernald	autumn willow
Salix tweedyi (Bebb ex Rose) C.R. Ball	Tweedy's willow
Salix vestita Pursh	rock willow
Salix wolfii Bebb	Wolf's Willow
Salvia azurea Michx. ex Lam.	Azure Blue Sage
Salvia reflexa Hornem.	Lanceleaf Sage
Sambucus racemosa L.	Red Elderberry
Sanicula canadensis L.	Canadian Blacksnakeroot
Sanicula marilandica L.	Maryland Sanicle
Sarcobatus vermiculatus (Hook.) Torr.	Greasewood
Saxifraga caespitosa L.	tufted alpine saxifrage
Saxifraga cernua L.	Nodding Saxifrage
Saxifraga flagellaris Willd. ex Sternb.	Whiplash Saxifrage
Saxifraga hyperborea R. Br.	Pygmy Saxifrage
Saxifraga oppositifolia L.	purple mountain saxifrage
Scabrethia scabra (Hook.) W.A. Weber	Badlands Mule-Ears
Schedonnardus paniculatus (Nutt.) Trel.	tumblegrass
Schizachne purpurascens (Torr.) Swallen	false melic
Schizachyrium scoparium (Michx.) Nash	Little Bluestem
Schoenoplectiella hallii (A.Gray) Lye	Hall's bulrush
Schoenoplectiella saximontana (Fernald) Lye	Rocky Mountain bulrush
Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve	Hardstem Bulrush
Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller	chairmaker's bulrush
Schoenoplectus heterochaetus (Chase) Soják	slender bulrush
Schoenoplectus pungens (Vahl) Palla	common threesquare
Schoenoplectus tabernaemontani (C.C. Gmel.) Palla	softstem bulrush
Scirpus atrocinctus Fernald	blackgirdle bulrush
Scirpus atrovirens Willd.	green bulrush
Scirpus cyperinus (L.) Kunth	Woolgrass
Scirpus microcarpus J. Presl & C. Presl	panicled bulrush
Scirpus nevadensis S. Watson	Nevada bulrush
Scirpus pallidus (Britton) Fernald	Cloaked Bulrush
Scirpus pendulus Muhl.	Rufous Bulrush
Scolochloa festucacea (Willd.) Link	common rivergrass
Scrophularia lanceolata Pursh	lanceleaf figwort
Scutellaria galericulata L.	marsh skullcap
Scutellaria lateriflora L.	blue skullcap
Scutellaria parvula Michx.	Small Skullcap
Sedum lanceolatum Torr.	spearleaf stonecrop
Sedum stenopetalum Pursh	wormleaf stonecrop
Selaginella densa Rydb.	lesser spikemoss
Selaginella rupestris (L.) Spring	northern selaginella
Senecio crassulus A. Gray	thickleaf ragwort
Senecio eremophilus Richardson	desert ragwort
Senecio fremontii Torr. & A. Gray	dwarf mountain ragwort
Senecio integerrimus Nutt.	lambstongue ragwort
Senecio lugens Richardson	small blacktip ragwort
Senecio megacephalus Nutt.	rocky ragwort
Senecio rapifolius Nutt.	Openwoods Ragwort
Senecio riddellii Torr. & A. Gray	Riddell's ragwort
Senecio serra Hook.	tall ragwort
Senecio sphaerocephalus Greene	ballhead ragwort
Senecio triangularis Hook.	arrowleaf ragwort
Senega alba (Nutt.) J.F.B.Pastore & J.R.Abbott	White Milkwort
Senega officinalis Spach	Seneca Snakeroot
Senega sanguinea (L.) J.F.B.Pastore & J.R.Abbott	Field Milkwort
Senega verticillata (L.) J.F.B.Pastore & J.R.Abbott	Whorled Milkwort
Sesuvium verrucosum Raf.	verrucose seapurslane
Shepherdia argentea (Pursh) Nutt.	Silver Buffaloberry
Shepherdia canadensis (L.) Nutt.	Russet Buffaloberry
Shinnersoseris rostrata (A. Gray) S. Tomb	beaked skeletonweed
Sibbaldia procumbens L.	Creeping Sibbaldia
Sicyos angulatus L.	Oneseed Bur Cucumber
Silene acaulis (L.) Jacq.	moss campion
Silene antirrhina L.	sleepy silene
Silene drummondii Hook.	Drummond's campion
Silene menziesii Hook.	Menzies' campion
Silene parryi (S. Watson) C.L. Hitchc. & Maguire	Parry's silene
Silphium integrifolium Michx.	wholeleaf rosinweed
Silphium laciniatum L.	compassplant
Sisymbrium linifolium (Nutt.) Nutt.	Flaxleaf Plainsmustard
Sisyrinchium campestre E.P. Bicknell	prairie blue-eyed grass
Sisyrinchium idahoense E.P. Bicknell	Idaho blue-eyed grass
Sisyrinchium montanum Greene	strict blue-eyed grass
Sisyrinchium mucronatum Michx.	needletip blue-eyed grass
Sisyrinchium septentrionale E.P. Bicknell	northern blue-eyed grass
Sium suave Walter	Hemlock Waterparsnip
Solanum interius Rydb.	Inland Nightshade
Solanum ptycanthum Dunal	West Indian Nightshade
Solanum rostratum Dunal	Buffalobur Nightshade
Solanum triflorum Nutt.	cutleaf nightshade
Solidago altissima L.	Tall Goldenrod
Solidago canadensis L.	Canada Goldenrod
Solidago gigantea Aiton	Giant Goldenrod
Solidago lepida DC.	Western Goldenrod
Solidago missouriensis Nutt.	Missouri goldenrod
Solidago mollis Bartlett	velvety goldenrod
Solidago multiradiata Aiton	Rocky Mountain goldenrod
Solidago nana Nutt.	Baby Goldenrod
Solidago nemoralis Aiton	Gray Goldenrod
Solidago ptarmicoides (Torr. & A.Gray) B.Boivin	Prairie Goldenrod
Solidago simplex Kunth	Mt. Albert goldenrod
Solidago speciosa Nutt.	showy goldenrod
Solidago velutina DC.	Threenerve Goldenrod
Sophora nuttalliana B.L. Turner	silky sophora
Sorbus scopulina Greene	Greene's mountain ash
Sorghastrum nutans (L.) Nash	Yellow Indiangrass
Sparganium angustifolium Michx.	narrowleaf bur-reed
Sparganium emersum Rehmann	European bur-reed
Sparganium eurycarpum Engelm.	broadfruit bur-reed
Spartina gracilis Trin.	alkali cordgrass
Spartina pectinata Bosc ex Link	Prairie Cordgrass
Sphaeralcea coccinea (Nutt.) Rydb.	scarlet globemallow
Sphenopholis intermedia (Rydb.) Rydb.	slender wedgescale
Sphenopholis obtusata (Michx.) Scribn.	Prairie Wedgescale
Spiraea lucida Douglas ex Greene	shinyleaf spirea
Spiranthes cernua (L.) Rich.	Nodding Lady's Tresses
Spiranthes magnicamporum Sheviak	Great Plains lady's tresses
Spiranthes romanzoffiana Cham.	hooded lady's tresses
Spirodela polyrhiza (L.) Schleid.	Common Duckmeat
Sporobolus airoides (Torr.) Torr.	Alkali Sacaton
Sporobolus compositus (Poir.) Merr.	Composite Dropseed
Sporobolus cryptandrus (Torr.) A. Gray	sand dropseed
Sporobolus heterolepis (A. Gray) A. Gray	Prairie Dropseed
Sporobolus neglectus Nash	puffsheath dropseed
Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood	poverty dropseed
Stachys pilosa Nutt.	hairy hedgenettle
Stanleya pinnata (Pursh) Britton	desert princesplume

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