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5330 Plants Found

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Ordered by scientific name.

Scientific Name	Common Name	†	Map‡
Sabulina austromontana (S.J.Wolf & Packer) Dillenb. & Kadereit	Columbian Stitchwort
Sabulina macrantha (Rydb.) Dillenb. & Kadereit	House's Stitchwort
Sabulina rubella (Wahlenb.) Dillenb. & Kadereit	Beautiful Sandwort
Sageretia wrightii S. Watson	Wright's mock buckthorn
Sagina decumbens (Elliott) Torr. & A. Gray	trailing pearlwort
Sagina saginoides (L.) Karst.	arctic pearlwort
Sagittaria calycina Engelm.	Hooded Arrowhead
Sagittaria cuneata Sheldon	arumleaf arrowhead
Sagittaria longiloba Engelm. ex J.G. Sm.	longbarb arrowhead
Sairocarpus kingii (S. Watson) D.A. Sutton	Least Snapdragon
Sairocarpus pusillus (Brandegee) D.A. Sutton	lesser snapdragon
Salazaria mexicana Torr.	Mexican bladdersage
Salicornia rubra A. Nelson	red swampfire
Salix amygdaloides Andersson	peachleaf willow
Salix bebbiana Sarg.	Bebb Willow
Salix bonplandiana Kunth	Bonpland willow
Salix boothii Dorn	Booth's willow
Salix brachycarpa Nutt.	Shortfruit Willow
Salix cascadensis Cockerell	cascade willow
Salix drummondiana Barratt ex Hook.	Drummond's willow
Salix eastwoodiae Cockerell ex A. Heller	mountain willow
Salix exigua Nutt.	narrowleaf willow
Salix geyeriana Andersson	Geyer willow
Salix glauca L.	grayleaf willow
Salix gooddingii C.R. Ball	Goodding's Willow
Salix interior Rowlee	Sandbar Willow
Salix irrorata Andersson	dewystem willow
Salix jepsonii C.K. Schneid.	Jepson's willow
Salix laevigata Bebb	red willow
Salix lasiolepis Benth.	arroyo willow
Salix lemmonii Bebb	Lemmon's Willow
Salix ligulifolia (C.R. Ball) C.R. Ball ex C.K. Schneid.	Strapleaf Willow
Salix lutea Nutt.	yellow willow
Salix melanopsis Nutt.	dusky willow
Salix monochroma C.R. Ball	onecolor willow
Salix monticola Bebb	Park Willow
Salix nigra Marshall	Black Willow
Salix nivalis Hook.	snow willow
Salix orestera C.K. Schneid.	Sierra Willow
Salix petrophila Rydb.	alpine willow
Salix planifolia Pursh	Diamondleaf Willow
Salix prolixa Andersson	MacKenzie's willow
Salix scouleriana Barratt ex Hook.	Scouler's willow
Salix sitchensis Sanson ex Bong.	Sitka willow
Salix taxifolia Kunth	Yewleaf Willow
Salix tweedyi (Bebb ex Rose) C.R. Ball	Tweedy's willow
Salix wolfii Bebb	Wolf's Willow
Saltugilia australis (H. Mason & A.D. Grant) L.A. Johnson	southern gilia
Salvia apiana Jeps.	white sage
Salvia arizonica A. Gray	desert indigo sage
Salvia ballotiflora Benth.	shrubby blue sage
Salvia columbariae Benth.	chia
Salvia dorrii (Kellogg) Abrams	purple sage
Salvia farinacea Benth.	mealycup sage
Salvia greatae Brandegee	lavender sage
Salvia henryi A. Gray	crimson sage
Salvia leptophylla Benth.	slenderleaf sage
Salvia lycioides A. Gray	canyon sage
Salvia mohavensis Greene	Mojave sage
Salvia pachyphylla Epling ex Munz	Blue Sage
Salvia pinguifolia (Fernald) Wooton & Standl.	rock sage
Salvia regla Cav.	mountain sage
Salvia roemeriana Scheele	cedar sage
Salvia subincisa Benth.	sawtooth sage
Salvia summa A. Nelson	great sage
Salvia texana (Scheele) Torr.	Texas sage
Salvia vaseyi (Porter) Parish	scallopleaf sage
Salvia whitehousei G. Alziar	clustered sage
Sambucus racemosa L.	Red Elderberry
Sanguisorba annua (Nutt. ex Hook.) Nutt. ex Torr. & A. Gray	Prairie Burnet
Sanguisorba canadensis L.	Canadian burnet
Sanicula bipinnatifida Douglas ex Hook.	purple sanicle
Sanicula graveolens Poepp. ex DC.	northern sanicle
Sanvitalia abertii A. Gray	Abert's creeping zinnia
Sapindus saponaria L.	wingleaf soapberry
Sarcobatus baileyi Coville	Bailey's Greasewood
Sarcobatus vermiculatus (Hook.) Torr.	Greasewood
Sarcocornia utahensis (Tidestr.) A.J. Scott	Utah swampfire
Sartwellia flaveriae A. Gray	threadleaf glowwort
Saxifraga adscendens L.	Wedgeleaf Saxifrage
Saxifraga bronchialis L.	Yellowdot Saxifrage
Saxifraga caespitosa L.	tufted alpine saxifrage
Saxifraga cernua L.	Nodding Saxifrage
Saxifraga chrysantha A. Gray	Goldbloom Saxifrage
Saxifraga flagellaris Willd. ex Sternb.	Whiplash Saxifrage
Saxifraga hyperborea R. Br.	Pygmy Saxifrage
Saxifraga mertensiana Bong.	wood saxifrage
Saxifraga oppositifolia L.	purple mountain saxifrage
Scabrethia scabra (Hook.) W.A. Weber	Badlands Mule-Ears
Schaefferia cuneifolia A. Gray	desert yaupon
Schiedeella arizonica P.M. Brown	parasitic lady's tresses
Schistophragma intermedia (A. Gray) Pennell	harlequin spiralseed
Schizachne purpurascens (Torr.) Swallen	false melic
Schizachyrium cirratum (Hack.) Wooton & Standl.	Texas bluestem
Schizachyrium sanguineum (Retz.) Alston	crimson bluestem
Schizachyrium scoparium (Michx.) Nash	Little Bluestem
Schizachyrium spadiceum (Swallen) Wipff	honey bluestem
Schkuhria multiflora Hook. & Arn.	manyflower false threadleaf
Schkuhria pinnata (Lam.) Kuntze ex Thell.	pinnate false threadleaf
Schoenocaulon texanum Scheele	Texas feathershank
Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve	Hardstem Bulrush
Schoenoplectus americanus (Pers.) Volkart ex Schinz & R. Keller	chairmaker's bulrush
Schoenoplectus californicus (C.A. Mey.) Palla	California Bulrush
Schoenoplectus pungens (Vahl) Palla	common threesquare
Schoenoplectus tabernaemontani (C.C. Gmel.) Palla	softstem bulrush
Schoenus nigricans L.	Black Bogrush
Scirpus microcarpus J. Presl & C. Presl	panicled bulrush
Scirpus nevadensis S. Watson	Nevada bulrush
Scirpus pallidus (Britton) Fernald	Cloaked Bulrush
Sclerocactus glaucus (J.A. Purpus ex K. Schum.) L.D. Benson	Colorado Hookless Cactus
Sclerocactus nyensis F. Hochstätter	Nye County Fishhook Cactus
Sclerocactus papyracanthus (Engelm.) N.P. Taylor	paperspine fishhook cactus
Sclerocactus parviflorus Clover & Jotter	Smallflower Fishhook Cactus
Sclerocactus polyancistrus (Engelm. & J.M. Bigelow) Britton & Rose	Redspined Fishhook Cactus
Sclerocactus pubispinus (Engelm.) L.D. Benson	Great Basin Fishhook Cactus
Sclerocactus spinosior (Engelm.) Woodruff & L.D. Benson	Desert Valley Fishhook Cactus
Sclerocactus wetlandicus Hochstätter	Uinta Basin Hookless Cactus
Sclerocactus whipplei (Engelm. & J.M. Bigelow) Britton & Rose	Whipple's Fishhook Cactus
Sclerolinon digynum (A. Gray) C.M. Rogers	northwestern yellowflax
Scleropogon brevifolius Phil.	burrograss
Scopulophila rixfordii (Brandegee) Munz & I.M. Johnst.	Rixford's Rockwort
Scrophularia californica Cham. & Schltdl.	California figwort
Scrophularia desertorum (Munz) R.J. Shaw	Desert Figwort
Scrophularia laevis Wooton & Standl.	Organ Mountain figwort
Scrophularia lanceolata Pursh	lanceleaf figwort
Scrophularia macrantha Greene ex Stiefelhagen	New Mexico figwort
Scrophularia montana Wooton	mountain figwort
Scrophularia parviflora Wooton & Standl.	pineland figwort
Scutellaria angustifolia Pursh	narrowleaf skullcap
Scutellaria drummondii Benth.	Drummond's skullcap
Scutellaria galericulata L.	marsh skullcap
Scutellaria laevis Shinners	Culberson County skullcap
Scutellaria lateriflora L.	blue skullcap
Scutellaria microphylla Moc. & Sessé ex Benth.	littleleaf skullcap
Scutellaria nana A. Gray	Dwarf Skullcap
Scutellaria potosina Brandegee	Mexican skullcap
Scutellaria sapphirina (Barneby) Olmstead	White Pine Skullcap
Scutellaria texana B.L. Turner	Texas skullcap
Scutellaria wrightii A. Gray	Wright's skullcap
Sebastiania bilocularis S. Watson	arrow poision plant
Sedum cockerellii Britton	Cockerell's stonecrop
Sedum debile S. Watson	Orpine Stonecrop
Sedum havardii Rose	Havard's stonecrop
Sedum lanceolatum Torr.	spearleaf stonecrop
Sedum leibergii Britton	Leiberg stonecrop
Sedum obtusatum A. Gray	Sierra stonecrop
Sedum stenopetalum Pursh	wormleaf stonecrop
Sedum wrightii A. Gray	Wright's stonecrop
Selaginella arizonica Maxon	Arizona spikemoss
Selaginella densa Rydb.	lesser spikemoss
Selaginella eremophila Maxon	desert spikemoss
Selaginella lepidophylla (Hook. & Grev.) Spring	flower of stone
Selaginella leucobryoides Maxon	Mojave Spikemoss
Selaginella mutica D.C. Eaton ex Underw.	bluntleaf spikemoss
Selaginella peruviana (Milde) Hieron.	Peruvian spikemoss
Selaginella pilifera A. Braun	resurrection plant
Selaginella rupincola Underw.	Rockloving Spikemoss
Selaginella underwoodii Hieron.	Underwood's spikemoss
Selaginella viridissima Weath.	green spikemoss
Selaginella wallacei Hieron.	Wallace's spikemoss
Selaginella watsonii Underw.	Watson's spikemoss
Selaginella wrightii Hieron.	Wright's spikemoss
Selenia dissecta Torr. & A. Gray	Texas selenia
Senecio amplectens A. Gray	Showy Alpine Ragwort
Senecio atratus Greene	Tall Blacktip Ragwort
Senecio bigelovii A. Gray	nodding ragwort
Senecio californicus DC.	California ragwort
Senecio crassulus A. Gray	thickleaf ragwort
Senecio eremophilus Richardson	desert ragwort
Senecio flaccidus Less.	threadleaf ragwort
Senecio fremontii Torr. & A. Gray	dwarf mountain ragwort
Senecio hydrophiloides Rydb.	tall groundsel
Senecio hydrophilus Nutt.	water ragwort
Senecio integerrimus Nutt.	lambstongue ragwort
Senecio lemmonii A. Gray	Lemmon's ragwort
Senecio lugens Richardson	small blacktip ragwort
Senecio mohavensis A. Gray	Mojave ragwort
Senecio parryi A. Gray	mountain ragwort
Senecio pattersonensis Hoover	Mono Ragwort
Senecio pudicus Greene	Bashful Ragwort
Senecio rapifolius Nutt.	Openwoods Ragwort
Senecio riddellii Torr. & A. Gray	Riddell's ragwort
Senecio scorzonella Greene	Sierra Ragwort
Senecio serra Hook.	tall ragwort
Senecio soldanella A. Gray	Colorado Ragwort
Senecio spartioides Torr. & A. Gray	broom-like ragwort
Senecio sphaerocephalus Greene	ballhead ragwort
Senecio taraxacoides (A. Gray) Greene	Dandelion Ragwort
Senecio triangularis Hook.	arrowleaf ragwort
Senecio warnockii Shinners	Warnock's ragwort
Senecio wootonii Greene	Wooton's ragwort
Senega alba (Nutt.) J.F.B.Pastore & J.R.Abbott	White Milkwort
Senega hemipterocarpa (A.Gray) J.F.B.Pastore & J.R.Abbott	Winged Milkwort
Senega scoparioides (Chodat) J.F.B.Pastore & J.R.Abbott	Broom Milkwort
Senega watsonii (Chodat) J.F.B.Pastore & J.R.Abbott	Watson's Milkwort
Senegalia berlandieri (Benth.) Britton & Rose	Guajillo
Senegalia greggii (A. Gray) Britton & Rose	Catclaw Acacia
Senegalia roemeriana (Scheele) Britton & Rose	roundflower catclaw
Senegalia wrightii (Benth.) Britton & Rose	catclaw acacia
Senna armata (S. Watson) Irwin & Barneby	desertsenna
Senna bauhinioides (A. Gray) Irwin & Barneby	twinleaf senna
Senna covesii (A. Gray) Irwin & Barneby	Coues' cassia
Senna durangensis (Rose) Irwin & Barneby	Durango senna
Senna lindheimeriana (Scheele) Irwin & Barneby	velvet leaf senna
Senna monozyx (Irwin & Barneby) Irwin & Barneby	Andean Senna
Senna orcuttii (Britton & Rose) Irwin & Barneby	Orcutt's senna
Senna pilosior (B.L. Rob. ex J.F. Macbr.) Irwin & Barneby	Trans-Pecos senna
Senna pumilio (A. Gray) Irwin & Barneby	dwarf senna
Senna roemeriana (Scheele) Irwin & Barneby	twoleaf senna
Senna wislizeni (A. Gray) Irwin & Barneby	Wislizenus' senna
Sesbania herbacea (Mill.) McVaugh	Bigpod Sesbania
Sesuvium maritimum (Walter) Britton, Sterns & Poggenb	Slender Seapurslane
Sesuvium verrucosum Raf.	verrucose seapurslane
Setaria grisebachii Fourn.	Grisebach's bristlegrass
Setaria leucopila (Scribn. & Merr.) K. Schum.	streambed bristlegrass
Setaria macrostachya Kunth	Large-Spike Bristlegrass
Setaria parviflora (Poir.) Kerguélen	marsh bristlegrass
Setaria reverchonii (Vasey) Pilg.	Reverchon's bristlegrass
Setaria scheelei (Steud.) Hitchc.	southwestern bristlegrass
Setaria texana W.H.P. Emery	Texas bristlegrass
Setaria villosissima (Scribn. & Merr.) K. Schum.	hairyleaf bristlegrass
Seymeria falcata B.L. Turner	curved-fruit blacksenna
Seymeria scabra A. Gray	limpia blacksenna
Shepherdia argentea (Pursh) Nutt.	Silver Buffaloberry
Shepherdia canadensis (L.) Nutt.	Russet Buffaloberry
Shepherdia rotundifolia Parry	roundleaf buffaloberry
Sibbaldia procumbens L.	Creeping Sibbaldia
Sicyos glaber Wooton	smooth bur cucumber
Sicyos laciniatus L.	Cutleaf Bur Cucumber
Sicyos microphyllus Kunth	small-leaf bur cucumber
Sicyos parviflorus Willd.	smallflower bur cucumber
Sida abutilifolia Mill.	Spreading Fanpetals
Sida longipes A. Gray	stockflower fanpetals
Sida neomexicana A. Gray	New Mexico fanpetals
Sida tragiifolia A. Gray	Earleaf Fanpetals
Sidalcea candida A. Gray	White Checkerbloom
Sidalcea covillei Greene	Owens Valley sidalcea
Sidalcea glaucescens Greene	waxy checkerbloom
Sidalcea multifida Greene	Cutleaf Checkerbloom
Sidalcea neomexicana A. Gray	salt spring checkerbloom
Sidalcea oregana (Nutt. ex Torr. & A. Gray) A. Gray	Oregon checkerbloom
Sideroxylon lanuginosum Michx.	gum bully
Sidotheca trilobata (A.Gray) Reveal	Threelobe Oxytheca
Silene acaulis (L.) Jacq.	moss campion
Silene antirrhina L.	sleepy silene
Silene bernardina S. Watson	Palmer's catchfly
Silene clokeyi C.L. Hitchc. & Maguire	Clokey's Catchfly
Silene douglasii Hook.	Douglas's catchfly
Silene drummondii Hook.	Drummond's campion
Silene grayi S. Watson	Gray's Catchfly
Silene kingii (S. Watson) Bocquet	King's Campion
Silene laciniata Cav.	cardinal catchfly
Silene menziesii Hook.	Menzies' campion
Silene nachlingerae Tiehm	Nevada Catchfly
Silene nuda (S. Watson) C.L. Hitchc. & Maguire	Western Fringed Catchfly
Silene oregana S. Watson	Oregon silene
Silene parryi (S. Watson) C.L. Hitchc. & Maguire	Parry's silene
Silene petersonii Maguire	Plateau Catchfly
Silene plankii C.L. Hitchc. & Maguire	Plank's catchfly
Silene repens Patrin ex Pers.	Pink Campion
Silene sargentii S. Watson	Sargent's Catchfly
Silene scaposa B.L. Rob.	Blue Mountain catchfly
Silene scouleri Hook.	Simple Campion
Silene spaldingii S. Watson	Spalding's silene
Silene verecunda S. Watson	San Francisco campion
Silene wrightii A. Gray	Wright's catchfly
Simmondsia chinensis (Link) C.K. Schneid.	jojoba
Simsia calva (Engelm. & A. Gray) A. Gray	awnless bushsunflower
Simsia lagasceiformis DC.	annual bushsunflower
Sisymbrium linifolium (Nutt.) Nutt.	Flaxleaf Plainsmustard
Sisyrinchium bellum S. Watson	Western Blue-eyed Grass
Sisyrinchium chilense Hook.	swordleaf blue-eyed grass
Sisyrinchium demissum Greene	stiff blue-eyed grass
Sisyrinchium funereum E.P. Bicknell	Funeral Mountain Blue-eyed Grass
Sisyrinchium halophilum Greene	Nevada Blue-Eyed Grass
Sisyrinchium idahoense E.P. Bicknell	Idaho blue-eyed grass
Sisyrinchium montanum Greene	strict blue-eyed grass
Sisyrinchium pallidum Cholewa & Douglass M. Hend.	Pale Blue-eyed Grass
Sisyrinchium radicatum E.P. Bicknell	Bigroot Blue-Eyed Grass
Sium suave Walter	Hemlock Waterparsnip
Solanum citrullifolium A. Braun	watermelon nightshade
Solanum davisense M.D. Whalen	Davis horsenettle
Solanum heterodoxum Dunal	melonleaf nightshade
Solanum jamesii Torr.	wild potato
Solanum ptycanthum Dunal	West Indian Nightshade
Solanum tenuipes Bartlett	fancy nightshade
Solanum triquetrum Cav.	Texas nightshade
Solanum xanti A. Gray	chaparral nightshade
Solidago altissima L.	Tall Goldenrod
Solidago gigantea Aiton	Giant Goldenrod
Solidago juliae G.L. Nesom	Julia's 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 simplex Kunth	Mt. Albert goldenrod
Solidago spectabilis (D.C. Eaton) A. Gray	Nevada Goldenrod
Solidago velutina DC.	Threenerve Goldenrod
Solidago wrightii A. Gray	Wright's Goldenrod
Sophora nuttalliana B.L. Turner	silky sophora
Sophora stenophylla A. Gray	fringeleaf necklacepod
Sorbus californica Greene	California mountain ash
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
Sparganium natans L.	Small Bur-reed
Spartina gracilis Trin.	alkali cordgrass
Spartina pectinata Bosc ex Link	Prairie Cordgrass
Spermolepis echinata (Nutt. ex DC.) A. Heller	bristly scaleseed
Spermolepis inermis (Nutt. ex DC.) Mathias & Constance	Red River scaleseed
Sphaeralcea ambigua A. Gray	desert globemallow
Sphaeralcea angustifolia (Cav.) G. Don	copper globemallow
Sphaeralcea caespitosa M.E. Jones	Tufted Globemallow
Sphaeralcea coccinea (Nutt.) Rydb.	scarlet globemallow
Sphaeralcea coulteri (S. Watson) A. Gray	Coulter's globemallow
Sphaeralcea digitata (Greene) Rydb.	juniper globemallow
Sphaeralcea emoryi Torr. ex A. Gray	Emory's globemallow
Sphaeralcea fendleri A. Gray	Fendler's Globemallow
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.	gooseberryleaf globemallow
Sphaeralcea hastulata A. Gray	spear globemallow
Sphaeralcea incana Torr. ex A. Gray	gray globemallow
Sphaeralcea janeae (S.L. Welsh) S.L. Welsh	Jane's Globemallow
Sphaeralcea laxa Wooton & Standl.	caliche globemallow
Sphaeralcea leptophylla (A. Gray) Rydb.	Scaly Globemallow
Sphaeralcea moorei (S.L.Welsh) N.D.Atwood & S.L.Welsh	Moore's Globemallow
Sphaeralcea munroana (Douglas) Spach	Munro's globemallow
Sphaeralcea orcuttii Rose	Carrizo Creek globemallow
Sphaeralcea parvifolia A. Nelson	small-leaf globemallow
Sphaeralcea polychroma La Duke	hot springs globemallow
Sphaeralcea procera Ced. Porter	Luna County globemallow
Sphaeralcea psoraloides S.L. Welsh	Psoralea Globemallow
Sphaeralcea rusbyi A. Gray	Rusby's Globemallow
Sphaeralcea wrightii A. Gray	Wright's globemallow
Sphenopholis intermedia (Rydb.) Rydb.	slender wedgescale
Sphenopholis obtusata (Michx.) Scribn.	Prairie Wedgescale
Sphenosciadium capitellatum A. Gray	woollyhead parsnip
Spigelia hedyotidea A. DC.	prairie pinkroot
Spiraea douglasii Hook.	rose spirea
Spiraea lucida Douglas ex Greene	shinyleaf spirea
Spiraea splendens Baumann ex K. Koch	rose meadowsweet
Spiranthes diluvialis Sheviak	Ute Lady's Tresses
Spiranthes magnicamporum Sheviak	Great Plains lady's tresses
Spiranthes porrifolia Lindl.	creamy lady's tresses
Spiranthes romanzoffiana Cham.	hooded lady's tresses
Spirodela polyrhiza (L.) Schleid.	Common Duckmeat
Sporobolus airoides (Torr.) Torr.	Alkali Sacaton
Sporobolus arenicola P.M.Peterson	Giant Sandreed
Sporobolus compositus (Poir.) Merr.	Composite Dropseed
Sporobolus contractus Hitchc.	spike dropseed
Sporobolus cryptandrus (Torr.) A. Gray	sand dropseed
Sporobolus flexuosus (Thurb. ex Vasey) Rydb.	mesa dropseed
Sporobolus giganteus Nash	giant dropseed
Sporobolus nealleyi Vasey	gyp dropseed
Sporobolus neglectus Nash	puffsheath dropseed
Sporobolus pyramidatus (Lam.) Hitchc.	Madagascar Dropseed
Sporobolus texanus Vasey	Texas dropseed
Sporobolus wrightii Munro ex Scribn.	big sacaton
Stachys albens A. Gray	whitestem hedgenettle
Stachys bigelovii A. Gray	rock hedgenettle
Stachys coccinea Ortega	scarlet hedgenettle
Stachys pilosa Nutt.	hairy hedgenettle
Stachys rothrockii A. Gray	Rothrock's Hedgenettle
Stanleya albescens M.E. Jones	White Princesplume
Stanleya confertiflora (B.L. Rob.) Howell	Oregon Princesplume
Stanleya elata M.E. Jones	Panamint Princesplume
Stanleya pinnata (Pursh) Britton	desert princesplume
Stanleya tomentosa Parry	Woolly Princesplume
Stanleya viridiflora Nutt.	Green Princesplume
Stellaria borealis Bigelow	boreal starwort
Stellaria calycantha (Ledeb.) Bong.	northern starwort
Stellaria crassifolia Ehrh.	fleshy starwort
Stellaria crispa Cham. & Schltdl.	curled starwort
Stellaria cuspidata Willd. ex Schltdl.	Mexican starwort
Stellaria irrigua Bunge	Colorado Starwort
Stellaria longifolia Muhl. ex Willd.	longleaf starwort
Stellaria longipes Goldie	longstalk starwort
Stellaria nitens Nutt.	Shiny Chickweed
Stellaria obtusa Engelm.	Rocky Mountain chickweed
Stellaria umbellata Turcz. ex Kar. & Kir.	umbrella starwort
Stemodia durantifolia (L.) Sw.	whitewoolly twintip
Stenandrium barbatum Torr. & A. Gray	early shaggytuft
Stenaria butterwickiae (Terrell) Terrell	Butterwick's starviolet
Stenaria mullerae (Fosberg) Terrell	Muller's diamond-flowers
Stenaria nigricans (Lam.) Terrell	Diamond-flowers
Stenaria rupicola (Greenm.) Terrell	smallflower starviolet
Stenocereus thurberi (Engelm.) Buxbaum	organpipe cactus
Stenogonum flexum (M.E. Jones) Reveal & J.T. Howell	Bent Two-Whorl Buckwheat
Stenogonum salsuginosum Nutt.	Salty Buckwheat
Stenotus acaulis (Nutt.) Nutt.	Stemless Mock Goldenweed
Stenotus armerioides Nutt.	thrift mock goldenweed
Stenotus lanuginosus (A. Gray) Greene	woolly mock goldenweed
Stephanomeria exigua Nutt.	Small Wirelettuce
Stephanomeria paniculata Nutt.	tufted wirelettuce
Stephanomeria parryi A. Gray	Parry's Wirelettuce
Stephanomeria pauciflora (Torr.) A. Nelson	brownplume wirelettuce
Stephanomeria runcinata Nutt.	Desert Wirelettuce
Stephanomeria schottii A. Gray	Schott's wirelettuce
Stephanomeria tenuifolia (Torr.) H.M.Hall	Lesser Wirelettuce
Stephanomeria thurberi A. Gray	Thurber's wirelettuce
Stephanomeria virgata Benth.	rod wirelettuce
Stevia micrantha Lag.	annual candyleaf
Stevia ovata Willd.	roundleaf candyleaf
Stevia serrata Cav.	sawtooth candyleaf
Stevia viscida Kunth	viscid candyleaf
Stillingia linearifolia S. Watson	queen's-root
Stillingia paucidentata S. Watson	Mojave toothleaf
Stillingia spinulosa Torr.	annual toothleaf
Stillingia sylvatica L.	queen's-delight
Stillingia treculiana (Müll. Arg.) I.M. Johnst.	Trecul's toothleaf
Streptanthella longirostris (S. Watson) Rydb.	longbeak streptanthella
Streptanthus barnebyi (Rollins & P.K.Holmgren) Al-Shehbaz	Black Rock Wild Cabbage
Streptanthus campestris S. Watson	southern jewelflower
Streptanthus carinatus C. Wright ex A. Gray	lyreleaf jewelflower
Streptanthus cordatus Nutt.	Heartleaf Twistflower
Streptanthus crassicaulis Torr.	Thickstem Wild Cabbage
Streptanthus cutleri Cory	Cutler's jewelflower
Streptanthus glaucus (S.Watson) Jeps.	Glaucous Wild Cabbage
Streptanthus lasiophyllus (Hook. & Arn.) Hoover	California Mustard
Streptanthus major (M.E.Jones) Jeps.	Slender Wild Cabbage
Streptanthus oliganthus Rollins	Masonic Mountain Jewelflower
Streptanthus pilosus (S.Watson) Jeps.	Hairy Wild Cabbage
Streptanthus platycarpus A. Gray	broadpod jewelflower
Streptanthus tortuosus Kellogg	shieldplant
Streptopus amplexifolius (L.) DC.	claspleaf twistedstalk
Strophostyles leiosperma (Torr. & A. Gray) Piper	Slickseed Fuzzybean
Stuckenia filiformis (Pers.) Börner	Fineleaf Pondweed
Stuckenia pectinata (L.) Börner	Sago Pondweed
Stuckenia striata (Ruiz & Pav.) Holub	broadleaf pondweed
Stuckenia vaginata (Turcz.) Holub	Sheathed Pondweed
Stylocline intertexta Morefield	Morefield's neststraw
Stylocline micropoides A. Gray	woollyhead neststraw
Stylocline psilocarphoides M. Peck	Baretwig Neststraw
Styrax platanifolius Engelm.	sycamoreleaf snowbell
Suaeda calceoliformis (Hook.) Moq.	Pursh Seepweed
Suaeda mexicana (Standl.) Standl.	Mexican seepweed
Suaeda nigra (Raf.) J.F.Macbr.	Mojave Seablite
Suckleya suckleyana (Torr.) Rydb.	poison suckleya
Sullivantia hapemanii (J.M. Coult. & Fisher) J.M. Coult.	Hapeman's Coolwort
Swertia perennis L.	felwort
Symphoricarpos albus (L.) S.F. Blake	Common Snowberry
Symphoricarpos longiflorus A. Gray	desert snowberry
Symphoricarpos mollis Nutt.	creeping snowberry
Symphoricarpos occidentalis Hook.	Western Snowberry
Symphoricarpos oreophilus A. Gray	mountain snowberry
Symphoricarpos rotundifolius A. Gray	roundleaf snowberry
Symphyotrichum ascendens (Lindl.) G.L. Nesom	Western Aster
Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve	northern bog aster
Symphyotrichum campestre (Nutt.) G.L. Nesom	western meadow aster
Symphyotrichum chilense (Nees) G.L. Nesom	Pacific aster
Symphyotrichum ciliatum (Ledeb.) G.L. Nesom	Rayless Alkali Aster
Symphyotrichum cusickii (A. Gray) G.L. Nesom	Cusick's aster
Symphyotrichum defoliatum (Parish) G.L. Nesom	San Bernardino aster
Symphyotrichum divaricatum (Nutt.) G.L. Nesom	Southern Annual Saltmarsh Aster
Symphyotrichum eatonii (A. Gray) G.L. Nesom	Eaton's aster
Symphyotrichum ericoides (L.) G.L. Nesom	White Heath Aster
Symphyotrichum expansum (Poepp. ex Spreng.) G.L. Nesom	southwestern annual saltmarsh aster
Symphyotrichum falcatum (Lindl.) G.L. Nesom	white prairie aster
Symphyotrichum foliaceum (Lindl. ex DC.) G.L. Nesom	alpine leafybract aster
Symphyotrichum frondosum (Nutt.) G.L. Nesom	short-rayed alkali aster
Symphyotrichum jessicae (Piper) G.L. Nesom	Jessica's aster
Symphyotrichum laeve (L.) Á. Löve & D. Löve	Smooth Blue Aster
Symphyotrichum lanceolatum (Willd.) G.L. Nesom	White Panicled Aster
Symphyotrichum molle (Rydb.) G.L. Nesom	Soft Aster
Symphyotrichum oblongifolium (Nutt.) G.L. Nesom	Aromatic Aster
Symphyotrichum praealtum (Poir.) G.L. Nesom	willowleaf aster
Symphyotrichum spathulatum (Lindl.) G.L. Nesom	western mountain aster
Symphyotrichum subspicatum (Nees) G.L. Nesom	Douglas aster
Symphyotrichum subulatum (Michx.) G.L. Nesom	Eastern Annual Saltmarsh Aster
Symphyotrichum welshii (Cronquist) G.L. Nesom	Welsh's Aster
Synthlipsis greggii A. Gray	Gregg's keelpod
Synthyris missurica (Raf.) Pennell	tailed kittentails
Synthyris pinnatifida S. Watson	featherleaf kittentails
Syntrichopappus fremontii A. Gray	Yellowray Fremont's-Gold
Tagetes micrantha Cav.	licorice marigold
Talinopsis frutescens A. Gray	arroyo fameflower
Taraxacum eriophorum Rydb.	woolbearing dandelion
Taraxia tanacetifolia (Torr. & A.Gray) Piper	Tansyleaf Evening Primrose
Tauschia arguta (Torr. & A. Gray) J.F. Macbr.	southern umbrellawort
Taxus brevifolia Nutt.	Pacific Yew
Tecoma stans (L.) Juss. ex Kunth	yellow trumpetbush
Telesonix heucheriformis Rydb.	Alumroot Brookfoam
Tephrosia vicioides Schtdl.	red hoarypea
Tetraclea coulteri A. Gray	Coulter's wrinklefruit
Tetracoccus hallii Brandegee	Hall's shrubby-spurge
Tetradymia argyraea Munz & Roos	Striped Cottonthorn
Tetradymia axillaris A. Nelson	Longspine Horsebrush
Tetradymia canescens DC.	spineless horsebrush
Tetradymia filifolia Greene	threadleaf horsebrush
Tetradymia glabrata Torr. & A. Gray	Littleleaf Horsebrush
Tetradymia nuttallii Torr. & A. Gray	Nuttall's Horsebrush
Tetradymia spinosa Hook. & Arn.	Shortspine Horsebrush
Tetradymia stenolepis Greene	Mojave Cottonthorn
Tetradymia tetrameres (S.F. Blake) Strother	Fourpart Horsebrush
Tetragonotheca texana Engelm. & A. Gray ex A. Gray	squarebud daisy
Tetramerium nervosum Nees	hairy fournwort
Tetraneuris acaulis (Pursh) Greene	stemless four-nerve daisy

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