Frio County

Showing 251–300 of 324 (native).

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  Rhus microphylla Engelm. ex A. Gray Native RHMI3

  littleleaf sumac · Anacardiaceae
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  Rhynchosida physocalyx (A. Gray) Fryxell Native RHPH2

  buffpetal · Malvaceae
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  Rudbeckia hirta L. Native RUHI2

  blackeyed Susan · Asteraceae
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  Ruellia nudiflora (Engelm. & A. Gray) Urb. Native RUNU

  violet wild petunia · Acanthaceae
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  Ruellia nudiflora (Engelm. & A. Gray) Urb. var. runyonii (Tharp & F.A. Barkley) B.L. Turner Native RUNUR

  Runyon's wild petunia · Acanthaceae
• ⚘
  Rumex spiralis Small Native RUSP2

  winged dock · Polygonaceae
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  Salvia ballotiflora Benth. Native SABA5

  shrubby blue sage · Lamiaceae
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  Samolus valerandi L. ssp. parviflorus (Raf.) Hultén Native SAVAP

  seaside brookweed · Primulaceae
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  Schedonnardus paniculatus (Nutt.) Trel. Native SCPA

  tumblegrass · Poaceae
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  Scutellaria drummondii Benth. Native SCDR2

  Drummond's skullcap · Lamiaceae
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  Scutellaria drummondii Benth. var. drummondii Native SCDRD

  Drummond's skullcap · Lamiaceae
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  Senecio ampullaceus Hook. Native SEAM2

  Texas ragwort · Asteraceae
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  Senegalia roemeriana (Scheele) Britton & Rose Native SERO

  roundflower catclaw · Fabaceae
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  Serjania brachycarpa A. Gray Native SEBR4

  littlefruit slipplejack · Sapindaceae
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  Setaria leucopila (Scribn. & Merr.) K. Schum. Native SELE6

  streambed bristlegrass · Poaceae
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  Setaria parviflora (Poir.) Kerguélen Native SEPA10

  marsh bristlegrass · Poaceae
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  Setaria reverchonii (Vasey) Pilg. Native SERE3

  Reverchon's bristlegrass · Poaceae
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  Sibara viereckii (O.E. Schultz) Rollins Native SIVI5

  Viereck's winged rockcress · Brassicaceae
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  Sida lindheimeri Engelm. & A. Gray Native SILI

  showy fanpetals · Malvaceae
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  Sideroxylon lanuginosum Michx. Native SILA20

  gum bully · Sapotaceae
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  Sideroxylon lanuginosum Michx. ssp. albicans (Sarg.) Kartesz & Gandhi Native SILAA4

  gum bully · Sapotaceae
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  Simsia calva (Engelm. & A. Gray) A. Gray Native SICA7

  awnless bushsunflower · Asteraceae
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  Solanum elaeagnifolium Cav. Native SOEL

  silverleaf nightshade · Solanaceae
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  Spermolepis divaricata (Walter) Raf. ex Ser. Native SPDI2

  roughfruit scaleseed · Apiaceae
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  Sphaeralcea pedatifida (A. Gray) A. Gray Native SPPE2

  palmleaf globemallow · Malvaceae
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  Sporobolus cryptandrus (Torr.) A. Gray Native SPCR

  sand dropseed · Poaceae
• ⚘
  Stellaria prostrata Baldw. Native STPR

  prostrate starwort · Caryophyllaceae
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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
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  Symphyotrichum ericoides (L.) G.L. Nesom var. ericoides Native SYERE

  white heath aster · Asteraceae
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  Tephrosia lindheimeri A. Gray Native TELI

  Lindheimer's hoarypea · Fabaceae
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  Tetragonotheca repanda (Buckley) Small Native TERE2

  showy nerveray · Asteraceae
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  Tetraneuris linearifolia (Hook.) Greene Native TELI3

  fineleaf fournerved daisy · Asteraceae
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  Thamnosma texana (A. Gray) Torr. Native THTE2

  rue of the mountains · Rutaceae
• ⚘
  Thelesperma ambiguum A. Gray Native THAM4

  Colorado greenthread · Asteraceae
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  Thelesperma burridgeanum (Regel, Korn. & Rach.) S.F. Blake Native THBU

  Burridge's greenthread · Asteraceae
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  Thelesperma simplicifolium A. Gray Native THSI

  slender greenthread · Asteraceae
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  Thelocactus setispinus (Engelm.) E.F. Anderson Native THSE5

  miniature barrel cactus · Cactaceae
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  Thymophylla pentachaeta (DC.) Small Native THPE4

  fiveneedle pricklyleaf · Asteraceae
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  Thymophylla pentachaeta (DC.) Small var. pentachaeta Native THPEP

  fiveneedle pricklyleaf · Asteraceae
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  Thymophylla tenuiloba (DC.) Small Native THTE7

  bristleleaf pricklyleaf · Asteraceae
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  Thymophylla tenuiloba (DC.) Small var. tenuiloba Native THTET

  bristleleaf pricklyleaf · Asteraceae
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  Tillandsia recurvata (L.) L. Native TIRE

  small ballmoss · Bromeliaceae
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  Tinantia anomala (Torr.) C.B. Clarke Native TIAN

  widowstears · Commelinaceae
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  Toxicodendron radicans (L.) Kuntze Native TORA2

  eastern poison ivy · Anacardiaceae
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  Trachypogon spicatus (L. f.) Kuntze Native TRSP12

  spiked crinkleawn · Poaceae
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  Tradescantia humilis Rose Native TRHU

  Texas spiderwort · Commelinaceae
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  Tragia amblyodonta (Müll. Arg.) Pax & K. Hoffm. Native TRAM9

  dogtooth noseburn · Euphorbiaceae
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  Trichloris pluriflora Fourn. Native TRPL3

  multiflower false Rhodes grass · Poaceae
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  Tridens albescens (Vasey) Wooton & Standl. Native TRAL2

  white tridens · Poaceae