Collin County

Showing 301–350 of 355.

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  Sporobolus cryptandrus (Torr.) A. Gray Native SPCR

  sand dropseed · Poaceae
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  Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood Native SPVA

  poverty dropseed · Poaceae
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  Stenaria nigricans (Lam.) Terrell Native STNI6

  diamond-flowers · Rubiaceae
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  Stenaria nigricans (Lam.) Terrell var. nigricans Native STNIN

  diamondflowers · Rubiaceae
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  Stillingia texana I.M. Johnst. Native STTE3

  Texas toothleaf · Euphorbiaceae
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  Stylisma pickeringii (Torr. ex M.A. Curtis) A. Gray Native STPI3

  Pickering's dawnflower · Convolvulaceae
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  Stylisma pickeringii (Torr. ex M.A. Curtis) A. Gray var. pattersonii (Fernald & B.G. Schub.) Myint Native STPIP2

  Patterson's dawnflower · Convolvulaceae
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  Styphnolobium affine (Torr. & A. Gray) Walp. Native STAF4

  Eve's necklacepod · Fabaceae
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  Symphoricarpos orbiculatus Moench Native SYOR

  coralberry · Caprifoliaceae
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  Symphyotrichum patens (Aiton) G.L. Nesom Native SYPA11

  late purple aster · Asteraceae
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  Symphyotrichum patens (Aiton) G.L. Nesom var. patens Native SYPAP2

  late purple aster · Asteraceae
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  Symphyotrichum praealtum (Poir.) G.L. Nesom Native SYPR5

  willowleaf aster · Asteraceae
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  Taraxacum laevigatum (Willd.) DC. Introduced TALA2

  rock dandelion · Asteraceae
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  Taraxacum officinale F.H. Wigg. Both TAOF

  common dandelion · Asteraceae
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  Taraxacum officinale F.H. Wigg. ssp. officinale Introduced TAOFO

  common dandelion · Asteraceae
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  Tephrosia onobrychoides Nutt. Native TEON

  multibloom hoarypea · Fabaceae
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  Tetraneuris linearifolia (Hook.) Greene Native TELI3

  fineleaf fournerved daisy · Asteraceae
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  Thelesperma filifolium (Hook.) A. Gray Native THFI

  stiff greenthread · Asteraceae
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  Thelesperma filifolium (Hook.) A. Gray var. filifolium Native THFIF

  stiff greenthread · Asteraceae
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  Torilis arvensis (Huds.) Link Introduced TOAR

  spreading hedgeparsley · Apiaceae
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  Tradescantia edwardsiana Tharp Native TRED

  plateau spiderwort · Commelinaceae
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  Tradescantia ohiensis Raf. Native TROH

  bluejacket · Commelinaceae
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  Tragia brevispica Engelm. & A. Gray Native TRBR4

  shortspike noseburn · Euphorbiaceae
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  Tragia urticifolia Michx. Native TRUR2

  nettleleaf noseburn · Euphorbiaceae
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  Trepocarpus aethusae Nutt. ex DC. Native TRAE2

  whitenymph · Apiaceae
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae
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  Tridens congestus (L.H. Dewey) Nash Native TRCO2

  pink fluffgrass · Poaceae
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  Tridens flavus (L.) Hitchc. Native TRFL2

  purpletop tridens · Poaceae
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  Tridens muticus (Torr.) Nash Native TRMU

  slim tridens · Poaceae
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  Triodanis lamprosperma McVaugh Native TRLA10

  prairie Venus' looking-glass · Campanulaceae
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  Triodanis leptocarpa (Nutt.) Nieuwl. Native TRLE3

  slimpod Venus' looking-glass · Campanulaceae
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  Triodanis perfoliata (L.) Nieuwl. Native TRPE4

  clasping Venus' looking-glass · Campanulaceae
• 
  Triticum aestivum L. Introduced TRAE

  common wheat · Poaceae
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  Ulmus americana L. Native ULAM

  American elm · Ulmaceae
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  Ulmus crassifolia Nutt. Native ULCR

  cedar elm · Ulmaceae
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  Valerianella radiata (L.) Dufr. Native VARA

  beaked cornsalad · Valerianaceae
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  Verbascum blattaria L. Introduced VEBL

  moth mullein · Scrophulariaceae
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  Verbena bracteata Cav. ex Lag. & Rodr. Native VEBR

  bigbract verbena · Verbenaceae
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  Verbesina alternifolia (L.) Britton ex Kearney Native VEAL

  wingstem · Asteraceae
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  Verbesina virginica L. Native VEVI3

  white crownbeard · Asteraceae
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  Verbesina virginica L. var. virginica Native VEVIV

  white crownbeard · Asteraceae
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  Veronica peregrina L. Native VEPE2

  neckweed · Scrophulariaceae
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  Viburnum rufidulum Raf. Native VIRU

  rusty blackhaw · Caprifoliaceae
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  Vicia ludoviciana Nutt. Native VILU

  Louisiana vetch · Fabaceae
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  Vicia ludoviciana Nutt. ssp. leavenworthii (Torr. & A. Gray) Lassetter & C.R. Gunn Native VILUL4

  Leavenworth's vetch · Fabaceae
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  Vicia minutiflora F.G. Dietr. Native VIMI

  pygmyflower vetch · Fabaceae
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  Vicia villosa Roth Introduced VIVI

  winter vetch · Fabaceae
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  Viola sororia Willd. Native VISO

  common blue violet · Violaceae
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  Vitis cinerea (Engelm.) Engelm. ex Millard Native VICI2

  graybark grape · Vitaceae
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  Vitis cinerea (Engelm.) Engelm. ex Millard var. cinerea Native VICIC2

  graybark grape · Vitaceae