Roberts County

Showing 301–350 of 364.

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  Salvia reflexa Hornem. Native SARE3

  lanceleaf sage · Lamiaceae
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  Sapindus saponaria L. Native SASA4

  wingleaf soapberry · Sapindaceae
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  Sapindus saponaria L. var. drummondii (Hook. & Arn.) L.D. Benson Native SASAD

  western soapberry · Sapindaceae
• 
  Schedonnardus paniculatus (Nutt.) Trel. Native SCPA

  tumblegrass · Poaceae
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  Schizachyrium scoparium (Michx.) Nash Native SCSC

  little bluestem · Poaceae
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  Schoenoplectus pungens (Vahl) Palla Native SCPU10

  common threesquare · Cyperaceae
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  Scutellaria resinosa Torr. Native SCRE3

  sticky skullcap · Lamiaceae
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  Senecio riddellii Torr. & A. Gray Native SERI2

  Riddell's ragwort · Asteraceae
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  Setaria leucopila (Scribn. & Merr.) K. Schum. Native SELE6

  streambed bristlegrass · Poaceae
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  Setaria pumila (Poir.) Roem. & Schult. Introduced SEPU8

  yellow foxtail · Poaceae
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  Setaria viridis (L.) P. Beauv. Introduced SEVI4

  green bristlegrass · Poaceae
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  Sisyrinchium angustifolium Mill. Native SIAN3

  narrowleaf blue-eyed grass · Iridaceae
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  Solanum americanum Mill. Native SOAM

  American black nightshade · Solanaceae
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  Solanum elaeagnifolium Cav. Native SOEL

  silverleaf nightshade · Solanaceae
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  Solanum rostratum Dunal Native SORO

  buffalobur nightshade · Solanaceae
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  Solidago gigantea Aiton Native SOGI

  giant goldenrod · Asteraceae
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  Solidago petiolaris Aiton Native SOPE

  downy ragged goldenrod · Asteraceae
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  Solidago petiolaris Aiton var. angusta (Torr. & A. Gray) A. Gray Native SOPEA

  downy ragged goldenrod · Asteraceae
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  Sophora nuttalliana B.L. Turner Native SONU

  silky sophora · Fabaceae
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  Sorghastrum nutans (L.) Nash Native SONU2

  Indiangrass · Poaceae
• 
  Sorghum halepense (L.) Pers. Introduced SOHA

  Johnsongrass · Poaceae
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  Sphaeralcea coccinea (Nutt.) Rydb. Native SPCO

  scarlet globemallow · Malvaceae
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  Sporobolus airoides (Torr.) Torr. Native SPAI

  alkali sacaton · Poaceae
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  Sporobolus cryptandrus (Torr.) A. Gray Native SPCR

  sand dropseed · Poaceae
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  Sporobolus texanus Vasey Native SPTE5

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

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

  diamondflowers · Rubiaceae
• 
  Stenosiphon linifolius (Nutt. ex James) Heynh. Native STLI2

  false gaura · Onagraceae
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  Strophostyles leiosperma (Torr. & A. Gray) Piper Native STLE6

  slickseed fuzzybean · Fabaceae
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  Symphyotrichum divaricatum (Nutt.) G.L. Nesom Native SYDI2

  southern annual saltmarsh aster · Asteraceae
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  Symphyotrichum ericoides (L.) G.L. Nesom Native SYER

  white heath aster · Asteraceae
• 
  Symphyotrichum ericoides (L.) G.L. Nesom var. ericoides Native SYERE

  white heath aster · Asteraceae
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  Symphyotrichum fendleri (A. Gray) G.L. Nesom Native SYFE

  Fendler's aster · Asteraceae
• 
  Tamarix ramosissima Ledeb. Introduced TARA

  saltcedar · Tamaricaceae
• 
  Tetraneuris acaulis (Pursh) Greene Native TEAC

  stemless four-nerve daisy · Asteraceae
• 
  Tetraneuris acaulis (Pursh) Greene var. acaulis Native TEACA2

  stemless four-nerve daisy · Asteraceae
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  Tetraneuris scaposa (DC.) Greene Native TESC2

  stemmy four-nerve daisy · Asteraceae
• 
  Tetraneuris scaposa (DC.) Greene var. scaposa Native TESCS

  stemmy four-nerve daisy · Asteraceae
• 
  Teucrium canadense L. Native TECA3

  Canada germander · Lamiaceae
• 
  Teucrium canadense L. var. canadense Native TECAC

  Canada germander · Lamiaceae
• 
  Thelesperma megapotamicum (Spreng.) Kuntze Native THME

  Hopi tea greenthread · Asteraceae
• 
  Tidestromia lanuginosa (Nutt.) Standl. Native TILA2

  woolly tidestromia · Amaranthaceae
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  Townsendia texensis Larsen Native TOTE2

  Texas Townsend daisy · Asteraceae
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  Toxicodendron rydbergii (Small ex Rydb.) Greene Native TORY

  western poison ivy · Anacardiaceae
• 
  Tragia ramosa Torr. Native TRRA5

  branched noseburn · Euphorbiaceae
• 
  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae
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  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae
• 
  Tridens flavus (L.) Hitchc. Native TRFL2

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

  slim tridens · Poaceae