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3024 Plants Found

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Ordered by scientific name.

Scientific Name	Common Name	†	Map‡
Ribes cereum Douglas	wax currant
Ribes leptanthum A. Gray	trumpet gooseberry
Ribes montigenum McClatchie	gooseberry currant
Ribes pinetorum Greene	orange gooseberry
Ribes quercetorum Greene	rock gooseberry
Ribes viscosissimum Pursh	sticky currant
Ribes wolfii Rothr.	Wolf's currant
Ricinus communis L.	castorbean
Rivina humilis L.	rougeplant
Robinia neomexicana A. Gray	New Mexico locust
Robinia pseudoacacia L.	Black Locust
Roldana hartwegii (Benth.) H. Rob. & Brettel	Hartweg's groundsel
Rorippa curvipes Greene	bluntleaf yellowcress
Rorippa microtitis (B.L. Rob.) Rollins	Chihuahuan Yellowcress
Rorippa palustris (L.) Besser	bog yellowcress
Rorippa sphaerocarpa (A. Gray) Britton	roundfruit yellowcress
Rosa stellata Wooton	desert rose
Rosa woodsii Lindl.	Woods' Rose
Rotala ramosior (L.) Koehne	lowland rotala
Rubus arizonensis Focke	Arizona dewberry
Rubus deliciosus Torr.	Delicious Raspberry
Rubus leucodermis Douglas ex Torr. & A. Gray	whitebark raspberry
Rubus neomexicanus A. Gray	New Mexico raspberry
Rubus parviflorus Nutt.	thimbleberry
Rubus strigosus Michx.	American Red Raspberry
Rudbeckia hirta L.	Black-eyed Susan	✓
Rudbeckia laciniata L.	Cutleaf Coneflower	✓
Ruellia nudiflora (Engelm. & A. Gray) Urb.	violet wild petunia
Ruellia parryi A. Gray	Parry's wild petunia
Rumex acetosella L.	common sheep sorrel
Rumex altissimus Alph. Wood	pale dock
Rumex conglomeratus Murray	clustered dock
Rumex crispus L.	curly dock
Rumex dentatus L.	toothed dock
Rumex hymenosepalus Torr.	canaigre dock
Rumex nematopodus Rech. f.	Arizona dock
Rumex obtusifolius L.	Bitter Dock
Rumex occidentalis S. Watson	Western Dock
Rumex orthoneurus Rech. f.	Chiricahua Mountain dock
Ruppia cirrhosa (Petagna) Grande	spiral ditchgrass
Sageretia wrightii S. Watson	Wright's mock buckthorn
Sagina decumbens (Elliott) Torr. & A. Gray	trailing pearlwort
Sagina saginoides (L.) Karst.	arctic pearlwort
Sagittaria cuneata Sheldon	arumleaf arrowhead
Sagittaria latifolia Willd.	Broadleaf Arrowhead
Sagittaria longiloba Engelm. ex J.G. Sm.	longbarb arrowhead
Sairocarpus pusillus (Brandegee) D.A. Sutton	lesser snapdragon
Sairocarpus watsonii (Vasey & Rose) D.A. Sutton	Watson's Snapdragon
Salazaria mexicana Torr.	Mexican bladdersage
Salix amygdaloides Andersson	peachleaf willow
Salix arizonica Dorn	Arizona Willow
Salix bebbiana Sarg.	Bebb Willow
Salix bonplandiana Kunth	Bonpland willow
Salix exigua Nutt.	narrowleaf willow
Salix geyeriana Andersson	Geyer willow
Salix gooddingii C.R. Ball	Goodding's Willow
Salix irrorata Andersson	dewystem willow
Salix laevigata Bebb	red willow
Salix lasiolepis Benth.	arroyo willow
Salix ligulifolia (C.R. Ball) C.R. Ball ex C.K. Schneid.	Strapleaf Willow
Salix scouleriana Barratt ex Hook.	Scouler's willow
Salix taxifolia Kunth	Yewleaf Willow
Salpichroa origanifolia (Lam.) Thell.	lily of the valley vine
Salsola paulsenii Litv.	barbwire Russian thistle
Salsola tragus L.	prickly Russian thistle
Salvia amissa Epling	Santa Catalina Mountain sage
Salvia arizonica A. Gray	desert indigo sage
Salvia columbariae Benth.	chia
Salvia henryi A. Gray	crimson sage
Salvia lemmonii A. Gray	Lemmon's sage
Salvia mohavensis Greene	Mojave sage
Salvia parryi A. Gray	Parry's sage
Salvia pinguifolia (Fernald) Wooton & Standl.	rock sage
Salvia reflexa Hornem.	Lanceleaf Sage
Salvia subincisa Benth.	sawtooth sage
Salvia tiliifolia Vahl	lindenleaf sage
Sambucus racemosa L.	Red Elderberry
Samolus vagans Greene	Chiricahua Mountain brookweed
Sanguisorba annua (Nutt. ex Hook.) Nutt. ex Torr. & A. Gray	Prairie Burnet
Sanvitalia abertii A. Gray	Abert's creeping zinnia
Sapindus saponaria L.	wingleaf soapberry
Saponaria officinalis L.	bouncingbet
Sarcobatus vermiculatus (Hook.) Torr.	Greasewood
Scabrethia scabra (Hook.) W.A. Weber	Badlands Mule-Ears
Schedonnardus paniculatus (Nutt.) Trel.	tumblegrass
Schedonorus pratensis (Huds.) P. Beauv.	meadow fescue
Schiedeella arizonica P.M. Brown	parasitic lady's tresses
Schinus molle L.	Peruvian peppertree
Schismus arabicus Nees	Arabian schismus
Schismus barbatus (Loefl. ex L.) Thell.	common Mediterranean grass
Schistophragma intermedia (A. Gray) Pennell	harlequin spiralseed
Schizachyrium cirratum (Hack.) Wooton & Standl.	Texas bluestem
Schizachyrium littorale (Nash) E.P. Bicknell	Shore Little Bluestem
Schizachyrium sanguineum (Retz.) Alston	crimson bluestem
Schizachyrium scoparium (Michx.) Nash	Little Bluestem
Schkuhria multiflora Hook. & Arn.	manyflower false threadleaf
Schkuhria pinnata (Lam.) Kuntze ex Thell.	pinnate false threadleaf
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
Scirpus microcarpus J. Presl & C. Presl	panicled bulrush
Scirpus pallidus (Britton) Fernald	Cloaked Bulrush
Scirpus pendulus Muhl.	Rufous Bulrush
Scleropogon brevifolius Phil.	burrograss
Scrophularia californica Cham. & Schltdl.	California figwort
Scrophularia parviflora Wooton & Standl.	pineland figwort
Scutellaria galericulata L.	marsh skullcap
Scutellaria potosina Brandegee	Mexican skullcap
Sebastiania bilocularis S. Watson	arrow poision plant
Securigera varia (L.) Lassen	crownvetch
Sedum cockerellii Britton	Cockerell's stonecrop
Sedum stelliforme S. Watson	Huachuca Mountain stonecrop
Selaginella arizonica Maxon	Arizona spikemoss
Selaginella eremophila Maxon	desert spikemoss
Selaginella mutica D.C. Eaton ex Underw.	bluntleaf spikemoss
Selaginella peruviana (Milde) Hieron.	Peruvian spikemoss
Selaginella underwoodii Hieron.	Underwood's spikemoss
Senecio actinella Greene	Flagstaff ragwort
Senecio arizonicus Greene	Arizona ragwort
Senecio bigelovii A. Gray	nodding ragwort
Senecio crassulus A. Gray	thickleaf ragwort
Senecio eremophilus Richardson	desert ragwort
Senecio flaccidus Less.	threadleaf ragwort
Senecio lemmonii A. Gray	Lemmon's ragwort
Senecio mohavensis A. Gray	Mojave ragwort
Senecio multidentatus Sch. Bip. ex Hemsl.	Huachuca Mountain ragwort
Senecio parryi A. Gray	mountain ragwort
Senecio riddellii Torr. & A. Gray	Riddell's ragwort
Senecio spartioides Torr. & A. Gray	broom-like ragwort
Senecio vulgaris L.	Common Groundsel
Senecio wootonii Greene	Wooton's ragwort
Senegalia greggii (A. Gray) Britton & Rose	Catclaw Acacia
Senna artemisioides (Gaudich. ex DC.) Randell	silver senna
Senna bauhinioides (A. Gray) Irwin & Barneby	twinleaf senna
Senna covesii (A. Gray) Irwin & Barneby	Coues' cassia
Senna hirsuta (L.) Irwin & Barneby	woolly senna
Senna lindheimeriana (Scheele) Irwin & Barneby	velvet leaf senna
Senna pendula (Humb. & Bonpl. ex Willd.) Irwin & Barneby	valamuerto
Senna roemeriana (Scheele) Irwin & Barneby	twoleaf senna
Senna wislizeni (A. Gray) Irwin & Barneby	Wislizenus' senna
Sesbania herbacea (Mill.) McVaugh	Bigpod Sesbania
Sesuvium verrucosum Raf.	verrucose seapurslane
Setaria adhaerens (Forssk.) Chiov.	bur bristlegrass
Setaria arizonica Rominger	Arizona Bristlegrass
Setaria grisebachii Fourn.	Grisebach's bristlegrass
Setaria leucopila (Scribn. & Merr.) K. Schum.	streambed bristlegrass
Setaria liebmannii Fourn.	Liebmann's Bristlegrass
Setaria macrostachya Kunth	Large-Spike Bristlegrass
Setaria parviflora (Poir.) Kerguélen	marsh bristlegrass
Setaria pumila (Poir.) Roem. & Schult.	yellow foxtail
Setaria scheelei (Steud.) Hitchc.	southwestern bristlegrass
Setaria verticillata (L.) P. Beauv.	hooked bristlegrass
Setaria verticilliformis Dunart.	barbed bristlegrass
Setaria viridis (L.) P. Beauv.	green bristlegrass
Setaria vulpiseta (Lam.) Roem. & Schult.	Plains Bristlegrass
Setariopsis auriculata (Fourn.) Scribn.	Setariopsis
Seymeria bipinnatisecta Seem.	Eagle Pass blacksenna
Sicyos glaber Wooton	smooth bur cucumber
Sicyosperma gracile A. Gray	climbing arrowheads
Sida neomexicana A. Gray	New Mexico fanpetals
Sida rhombifolia L.	Cuban jute
Sida spinosa L.	Prickly Fanpetals
Sidalcea neomexicana A. Gray	salt spring checkerbloom
Sideroxylon lanuginosum Michx.	gum bully
Silene antirrhina L.	sleepy silene
Silene gallica L.	common catchfly
Silene laciniata Cav.	cardinal catchfly
Silene scouleri Hook.	Simple Campion
Silene thurberi S. Watson	woolly catchfly
Silybum marianum (L.) Gaertn.	blessed milkthistle
Simmondsia chinensis (Link) C.K. Schneid.	jojoba
Simsia lagasceiformis DC.	annual bushsunflower
Sinapis alba L.	white mustard
Sinapis arvensis L.	charlock mustard
Sisymbrium altissimum L.	tall tumblemustard
Sisymbrium irio L.	London rocket
Sisymbrium linifolium (Nutt.) Nutt.	Flaxleaf Plainsmustard
Sisymbrium officinale (L.) Scop.	hedgemustard
Sisymbrium orientale L.	Indian hedgemustard
Sisyrinchium arizonicum Rothr.	Arizona blue-eyed grass
Sisyrinchium cernuum (E.P. Bicknell) Kearney	nodding blue-eyed grass
Sisyrinchium demissum Greene	stiff blue-eyed grass
Sisyrinchium longipes (E.P. Bicknell) Kearney & Peebles	timberland blue-eyed grass
Sium suave Walter	hemlock waterparsnip
Solanum adscendens Sendtn.	sonoita nightshade
Solanum americanum Mill.	American Black Nightshade
Solanum carolinense L.	Carolina Horsenettle
Solanum douglasii Dunal	Greenspot Nightshade
Solanum heterodoxum Dunal	melonleaf nightshade
Solanum hindsianum Benth.	Hinds' Nightshade
Solanum jamesii Torr.	wild potato
Solanum lumholtzianum Bartlett	Sonoran Nightshade
Solanum lycopersicum L.	Garden Tomato
Solanum nigrescens M. Martens & Galeotti	Divine Nightshade
Solanum physalifolium Rusby	hoe nightshade
Solanum triflorum Nutt.	cutleaf nightshade
Solanum xanti A. Gray	chaparral nightshade
Solidago altissima L.	Tall Goldenrod
Solidago missouriensis Nutt.	Missouri goldenrod
Solidago multiradiata Aiton	Rocky Mountain goldenrod
Solidago simplex Kunth	Mt. Albert goldenrod
Solidago velutina DC.	Threenerve Goldenrod
Solidago wrightii A. Gray	Wright's goldenrod
Sonchus arvensis L.	field sowthistle
Sonchus asper (L.) Hill	spiny sowthistle
Sonchus oleraceus L.	common sowthistle
Sophora nuttalliana B.L. Turner	silky sophora
Sophora secundiflora (Ortega) Lag. ex DC.	Mescal Bean
Sorbus scopulina Greene	Greene's mountain ash
Sorghastrum nutans (L.) Nash	Yellow Indiangrass
Sorghum bicolor (L.) Moench	Sorghum
Sorghum halepense (L.) Pers.	Johnsongrass
Sparganium emersum Rehmann	European bur-reed
Spartium junceum L.	Spanish broom
Spermolepis echinata (Nutt. ex DC.) A. Heller	bristly scaleseed
Sphaeralcea ambigua A. Gray	desert globemallow
Sphaeralcea angustifolia (Cav.) G. Don	copper 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 laxa Wooton & Standl.	caliche globemallow
Sphaeralcea leptophylla (A. Gray) Rydb.	Scaly Globemallow
Sphaeralcea orcuttii Rose	Carrizo Creek globemallow
Sphaeralcea parvifolia A. Nelson	small-leaf globemallow
Sphaeralcea rusbyi A. Gray	Rusby's Globemallow
Sphaeralcea wrightii A. Gray	Wright's globemallow
Sphaerophysa salsula (Pall.) DC.	alkali swainsonpea
Sphenopholis intermedia (Rydb.) Rydb.	slender wedgescale
Sphenopholis obtusata (Michx.) Scribn.	Prairie Wedgescale
Sphinctospermum constrictum (S. Watson) Rose	hourglass peaseed
Spiranthes delitescens Sheviak	reclusive 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 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 interruptus Vasey	Black Dropseed
Sporobolus nealleyi Vasey	gyp dropseed
Sporobolus neglectus Nash	puffsheath dropseed
Sporobolus purpurascens (Sw.) Ham.	purple dropseed
Sporobolus texanus Vasey	Texas dropseed
Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood	poverty dropseed
Sporobolus wrightii Munro ex Scribn.	big sacaton
Stachys coccinea Ortega	scarlet hedgenettle
Stachys pilosa Nutt.	hairy hedgenettle
Stanleya pinnata (Pursh) Britton	desert princesplume
Stellaria longifolia Muhl. ex Willd.	longleaf starwort
Stellaria longipes Goldie	longstalk starwort
Stellaria media (L.) Vill.	common chickweed
Stellaria nitens Nutt.	Shiny Chickweed
Stellaria porsildii Chinnappa	Porsild's starwort
Stellaria umbellata Turcz. ex Kar. & Kir.	umbrella starwort
Stemodia durantifolia (L.) Sw.	whitewoolly twintip
Stenocereus thurberi (Engelm.) Buxbaum	organpipe cactus
Stenotaphrum secundatum (Walter) Kuntze	St. Augustine Grass
Stephanomeria exigua Nutt.	Small Wirelettuce
Stephanomeria pauciflora (Torr.) A. Nelson	brownplume 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 lemmonii (A. Gray) A. Gray	Lemmon's candyleaf
Stevia micrantha Lag.	annual candyleaf
Stevia plummerae A. Gray	Plummer's candyleaf
Stevia salicifolia Cav.	Willowleaf Candyleaf
Stevia serrata Cav.	sawtooth candyleaf
Stevia viscida Kunth	viscid candyleaf
Stillingia linearifolia S. Watson	queen's-root
Streptanthella longirostris (S. Watson) Rydb.	longbeak streptanthella
Streptanthus carinatus C. Wright ex A. Gray	lyreleaf jewelflower
Streptanthus lasiophyllus (Hook. & Arn.) Hoover	California Mustard
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
Stylocline micropoides A. Gray	woollyhead neststraw
Stylocline sonorensis Wiggins	Sonoran neststraw
Stylosanthes humilis Kunth	Townsville stylo
Suaeda calceoliformis (Hook.) Moq.	Pursh Seepweed
Suaeda nigra (Raf.) J.F.Macbr.	Mojave Seablite
Suckleya suckleyana (Torr.) Rydb.	poison suckleya
Symphoricarpos longiflorus A. Gray	desert snowberry
Symphoricarpos oreophilus A. Gray	mountain snowberry
Symphoricarpos rotundifolius A. Gray	roundleaf snowberry
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 lanceolatum (Willd.) G.L. Nesom	White Panicled Aster
Symphyotrichum potosinum (A. Gray) G.L. Nesom	Santa Rita Mountain aster
Syntrichopappus fremontii A. Gray	Yellowray Fremont's-Gold
Tagetes lemmonii A. Gray	Lemmon's marigold
Tagetes micrantha Cav.	licorice marigold
Tamarix aphylla (L.) Karst.	Athel tamarisk
Tamarix aralensis Bunge	Russian tamarisk
Tamarix gallica L.	French tamarisk
Tamarix parviflora DC.	smallflower tamarisk
Taraxacum officinale F.H. Wigg.	common dandelion
Tecoma stans (L.) Juss. ex Kunth	yellow trumpetbush
Tephrosia leiocarpa A. Gray	smoothpod hoarypea
Tephrosia thurberi (Rydb.) C.E. Wood	Thurber's hoarypea
Tephrosia vicioides Schtdl.	red hoarypea
Tetraclea coulteri A. Gray	Coulter's wrinklefruit
Tetradymia canescens DC.	spineless horsebrush
Tetramerium nervosum Nees	hairy fournwort
Tetraneuris acaulis (Pursh) Greene	stemless four-nerve daisy
Tetraneuris argentea (A. Gray) Greene	perkysue
Tetraneuris scaposa (DC.) Greene	stemmy four-nerve daisy
Teucrium canadense L.	Canada germander
Teucrium cubense Jacq.	small coastal germander
Teucrium glandulosum Kellogg	sticky germander
Thalictrum fendleri Engelm. ex A. Gray	Fendler's meadow-rue
Thalictrum revolutum DC.	Waxyleaf Meadow-Rue
Thamnosma montana Torr. & Frém.	turpentinebroom
Thamnosma texana (A. Gray) Torr.	rue of the mountains
Thelesperma ambiguum A. Gray	Colorado greenthread
Thelesperma filifolium (Hook.) A. Gray	stiff greenthread
Thelesperma longipes A. Gray	longstalk greenthread
Thelesperma megapotamicum (Spreng.) Kuntze	Hopi Tea Greenthread
Thelypodium integrifolium (Nutt.) Endl. ex Walp.	entireleaved thelypody
Thelypodium wrightii A. Gray	Wright's thelypody
Thermopsis montana Nutt.	Mountain Goldenbanner
Thinopyrum intermedium (Host) Barkworth & D.R. Dewey	intermediate wheatgrass
Thlaspi arvense L.	field pennycress
Thymophylla acerosa (DC.) Strother	pricklyleaf dogweed
Thymophylla aurea (A. Gray) Greene ex Britton	manyawn pricklyleaf
Thymophylla concinna (A. Gray) Strother	Sonoran Pricklyleaf
Thysanocarpus curvipes Hook.	sand fringepod
Thysanocarpus laciniatus Nutt.	mountain fringepod
Tidestromia lanuginosa (Nutt.) Standl.	Woolly Tidestromia
Tillandsia recurvata (L.) L.	small ballmoss
Tiquilia canescens (DC.) A.T. Richardson	woody crinklemat
Tiquilia hispidissima (Torr. & A. Gray) A.T. Richardson	hairy crinklemat
Tiquilia plicata (Torr.) A.T. Richardson	fanleaf crinklemat
Tithonia thurberi A. Gray	Arizona Sunflowerweed
Tomostima reptans (Lam.) Al-Shehbaz, M.Koch & Jordon-Thaden	Carolina Draba
Tordylium apulum L.	Mediterranean Hartwort
Torilis arvensis (Huds.) Link	spreading hedgeparsley
Torreyochloa pallida (Torr.) Church	Pale False Mannagrass
Townsendia annua Beaman	annual Townsend daisy
Townsendia exscapa (Richardson) Porter	stemless Townsend daisy
Townsendia formosa Greene	Smooth Townsend Daisy
Townsendia strigosa Nutt.	Hairy Townsend Daisy
Toxicodendron radicans (L.) Kuntze	Eastern Poison Ivy
Toxicodendron rydbergii (Small ex Rydb.) Greene	Western Poison Ivy
Toxicoscordion paniculatum (Nutt.) Rydb.	Foothill Deathcamas
Trachypogon spicatus (L. f.) Kuntze	spiked crinkleawn
Tradescantia occidentalis (Britton) Smyth	Prairie Spiderwort
Tradescantia pinetorum Greene	pinewoods spiderwort
Tragia amblyodonta (Müll. Arg.) Pax & K. Hoffm.	dogtooth noseburn
Tragia laciniata (Torr.) Müll. Arg.	Sonoita noseburn
Tragia nepetifolia Cav.	catnip noseburn
Tragia ramosa Torr.	branched noseburn
Tragopogon dubius Scop.	yellow salsify
Tragopogon porrifolius L.	salsify
Tragopogon pratensis L.	Jack-go-to-bed-at-noon
Tragus berteronianus Schult.	spiked bur grass
Tragus racemosus (L.) All.	stalked bur grass
Trianthema portulacastrum L.	desert horsepurslane
Tribulus terrestris L.	puncturevine
Trichoneura elegans Swallen	Silveus' grass
Trichoptilium incisum (A. Gray) A. Gray	yellowdome
Trichostema arizonicum A. Gray	Arizona bluecurls
Trichostema brachiatum L.	fluxweed
Tridens albescens (Vasey) Wooton & Standl.	white tridens
Tridens congestus (L.H. Dewey) Nash	pink fluffgrass
Tridens eragrostoides (Vasey & Scribn.) Nash	lovegrass tridens
Tridens muticus (Torr.) Nash	slim tridens
Trifolium albopurpureum Torr. & A. Gray	rancheria clover
Trifolium amabile Kunth	Aztec clover
Trifolium fragiferum L.	strawberry clover
Trifolium gracilentum Torr. & A. Gray	pinpoint clover
Trifolium gymnocarpon Nutt.	Hollyleaf Clover
Trifolium hybridum L.	Alsike Clover
Trifolium longipes Nutt.	longstalk clover
Trifolium microcephalum Pursh	smallhead clover
Trifolium mucronatum Willd. ex Spreng.	cusp clover
Trifolium neurophyllum Greene	White Mountain Clover
Trifolium pinetorum Greene	woods clover
Trifolium pratense L.	Red Clover
Trifolium repens L.	White Clover	✓
Trifolium variegatum Nutt.	whitetip clover
Trifolium willdenovii Spreng.	Tomcat Clover
Trifolium wormskioldii Lehm.	cows clover
Triodanis holzingeri McVaugh	Holzinger's Venus' looking-glass
Triodanis perfoliata (L.) Nieuwl.	Clasping Venus' Looking-glass
Tripsacum lanceolatum Rupr. ex Fourn.	Mexican gamagrass
Tripterocalyx carneus (Greene) L.A. Galloway	winged sandpuffs
Trisetum interruptum Buckley	prairie false oat
Trisetum spicatum (L.) K. Richt.	Spike Trisetum
Triteleia lemmoniae (S. Watson) Greene	Oak Creek Triteleia
Triteleiopsis palmeri (S. Watson) Hoover	Palmer's Bajalily
Triticum aestivum L.	common wheat
Trixis californica Kellogg	American threefold
Tumamoca macdougalii Rose	Tumamoc globeberry
Turritis glabra L.	Tower Rockcress
Typha domingensis Pers.	southern cattail
Typha latifolia L.	Broadleaf Cattail
Ulmus parvifolia Jacq.	Chinese Elm
Ulmus pumila L.	Siberian Elm
Urochloa arizonica (Scribn. & Merr.) O. Morrone & F. Zuloaga	Arizona signalgrass
Urochloa fusca (Sw.) B.F. Hansen & Wunderlin	Browntop Signalgrass
Urochloa platyphylla (Munro ex C. Wright) R.D. Webster	Broadleaf Signalgrass
Urochloa texana (Buckley) R. Webster	Texas Signalgrass
Urtica gracilenta Greene	mountain nettle
Urtica gracilis Aiton	American Stinging Nettle
Urtica urens L.	dwarf nettle
Vaccaria hispanica (Mill.) Rauschert	cow soapwort
Vaccinium membranaceum Douglas ex Torr.	Thinleaf Huckleberry
Vaccinium myrtillus L.	whortleberry
Vachellia constricta (Benth.) Seigler & Ebinger	Whitethorn Acacia
Vachellia farnesiana (L.) Wight & Arn.	Sweet Acacia
Vachellia vernicosa (Britton & Rose) Seigler & Ebinger	viscid acacia
Valeriana acutiloba Rydb.	sharpleaf valerian
Valeriana arizonica A. Gray	Arizona valerian
Valeriana edulis Nutt. ex Torr. & A. Gray	Tobacco Root
Valeriana occidentalis A. Heller	western valerian
Valeriana sorbifolia Kunth	pineland valerian
Vauquelinia californica (Torr.) Sarg.	Arizona rosewood
Veratrum californicum Durand	California false hellebore
Verbascum blattaria L.	Moth Mullein
Verbascum thapsus L.	Great Mullein
Verbascum virgatum Stokes	wand mullein
Verbena bracteata Cav. ex Lag. & Rodr.	Bigbract Verbena
Verbena elegans Kunth	Mountain Mock Vervain
Verbena hastata L.	Blue Vervain
Verbena incompta P.W. Michael	purpletop vervain
Verbena macdougalii A. Heller	MacDougal verbena
Verbena menthifolia Benth.	mint vervain
Verbena neomexicana (A. Gray) Small	hillside vervain
Verbena officinalis L.	herb of the cross
Verbena pinetorum Moldenke	Chihuahuan vervain
Verbena plicata Greene	fanleaf vervain
Verbena rigida Spreng.	tuberous vervain
Verbena scabra Vahl	sandpaper vervain
Verbena urticifolia L.	White Vervain
Verbena xutha Lehm.	Gulf vervain
Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray	Golden Crownbeard
Verbesina rothrockii B.L. Rob. & Greenm.	Rothrock's crownbeard
Vernonia marginata (Torr.) Raf.	plains ironweed
Veronica americana Schwein. ex Benth.	American Speedwell
Veronica anagallis-aquatica L.	water speedwell
Veronica arvensis L.	corn speedwell
Veronica peregrina L.	neckweed
Veronica persica Poir.	Birdeye Speedwell
Veronica plantaginea E.James	White River Coraldrops
Veronica polita Fr.	gray field speedwell
Vicia americana Muhl. ex Willd.	American vetch
Vicia leucophaea Greene	Mogollon Mountain vetch
Vicia ludoviciana Nutt.	Louisiana vetch
Vicia pulchella Kunth	sweetclover vetch
Vicia sativa L.	garden vetch
Vicia villosa Roth	winter vetch
Viguiera cordifolia A. Gray	heartleaf goldeneye
Viguiera dentata (Cav.) Spreng.	toothleaf goldeneye
Vinca major L.	Bigleaf Periwinkle
Viola adunca Sm.	hookedspur violet
Viola arvensis Murray	European field pansy
Viola bicolor Pursh	field pansy
Viola canadensis L.	Canadian white violet
Viola nephrophylla Greene	northern bog violet
Viola purpurea Kellogg	goosefoot violet
Viola umbraticola Kunth	Ponderosa violet
Vitex trifolia L.	simpleleaf chastetree
Vitis arizonica Engelm.	canyon grape
Vitis riparia Michx.	Riverbank Grape
Vulpia bromoides (L.) Gray	brome fescue
Vulpia microstachys (Nutt.) Munro	small fescue
Vulpia myuros (L.) C.C. Gmel.	annual fescue
Vulpia octoflora (Walter) Rydb.	sixweeks fescue
Waltheria detonsa A.Gray	(Unnamed)
Waltheria indica L.	Uhaloa
Washingtonia filifera (Linden ex André) H. Wendl.	California fan palm
Wislizenia refracta Engelm.	Spectacle Fruit
Woodsia cochisensis Windham	Cochise cliff fern
Woodsia oregana D.C. Eaton	Oregon cliff fern
Woodsia phillipsii Windham	Phillips' cliff fern
Woodsia plummerae Lemmon	Plummer's cliff fern
Woodsia scopulina D.C. Eaton	Rocky Mountain woodsia
Wyethia arizonica A. Gray	Arizona mule-ears
Xanthisma gracile (Nutt.) D.R.Morgan & R.L.Hartm.	Slender Goldenweed
Xanthisma junceum (Greene) D.R.Morgan & R.L.Hartm.	Rush Bristleweed
Xanthisma spinulosum (Pursh) D.R.Morgan & R.L.Hartm.	Cutleaf Ironplant
Xanthisma texanum DC.	Texas sleepydaisy
Xanthium spinosum L.	spiny cocklebur
Xanthium strumarium L.	rough cocklebur
Xanthocephalum gymnospermoides (A. Gray) Benth. & Hook. f.	San Pedro matchweed
Xylorhiza tortifolia (Torr. & A. Gray) Greene	Mojave woodyaster
Yabea microcarpa (Hook. & Arn.) Koso-Pol.	false carrot
Yucca ×schottii Engelm.	Schott's Yucca

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