Houston County

Showing 501–550 of 641.

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  Rhus copallinum L. Native RHCO

  winged sumac · Anacardiaceae
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  Rhus copallinum L. var. latifolia Engl. Native RHCOL2

  winged sumac · Anacardiaceae
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  Rhus glabra L. Native RHGL

  smooth sumac · Anacardiaceae
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  Rhus lanceolata (A. Gray) Britton Native RHLA3

  prairie sumac · Anacardiaceae
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  Rhynchosia latifolia Nutt. ex Torr. & A. Gray Native RHLA5

  prairie snoutbean · Fabaceae
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  Rhynchospora capitellata (Michx.) Vahl Native RHCA12

  brownish beaksedge · Cyperaceae
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  Rhynchospora corniculata (Lam.) A. Gray Native RHCO2

  shortbristle horned beaksedge · Cyperaceae
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  Rhynchospora globularis (Chapm.) Small Native RHGL2

  globe beaksedge · Cyperaceae
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  Rhynchospora harveyi W. Boott Native RHHA

  Harvey's beaksedge · Cyperaceae
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  Rhynchospora harveyi W. Boott var. harveyi Native RHHAH

  Harvey's beaksedge · Cyperaceae
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  Rhynchospora macra (C.B. Clarke ex Britton) Small Native RHMA5

  large beaksedge · Cyperaceae
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  Rhynchospora scirpoides (Torr.) A. Gray Native RHSC5

  longbeak beaksedge · Cyperaceae
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  Rosa bracteata J.C. Wendl. Introduced ROBR

  Macartney rose · Rosaceae
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  Rotala ramosior (L.) Koehne Native RORA

  lowland rotala · Lythraceae
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  Rubus trivialis Michx. Native RUTR

  southern dewberry · Rosaceae
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  Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. Native RUGR

  rough coneflower · Asteraceae
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  Rudbeckia hirta L. Native RUHI2

  blackeyed Susan · Asteraceae
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  Rudbeckia maxima Nutt. Native RUMA3

  great coneflower · Asteraceae
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  Ruellia humilis Nutt. Native RUHU

  fringeleaf wild petunia · Acanthaceae
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  Ruellia pedunculata Torr. ex A. Gray Native RUPE4

  stalked wild petunia · Acanthaceae
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  Rumex crispus L. Introduced RUCR

  curly dock · Polygonaceae
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  Rumex crispus L. ssp. crispus Introduced RUCRC

  curly dock · Polygonaceae
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  Sabatia campestris Nutt. Native SACA3

  Texas star · Gentianaceae
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  Sabatia gentianoides Elliott Native SAGE

  pinewoods rose gentian · Gentianaceae
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  Saccharum alopecuroides (L.) Nutt. Native SAAL21

  silver plumegrass · Poaceae
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  Saccharum baldwinii Spreng. Native SABA10

  narrow plumegrass · Poaceae
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  Saccharum brevibarbe (Michx.) Pers. Native SABR18

  shortbeard plumegrass · Poaceae
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  Saccharum giganteum (Walter) Pers. Native SAGI

  sugarcane plumegrass · Poaceae
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  Sacciolepis striata (L.) Nash Native SAST

  American cupscale · Poaceae
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  Sagittaria graminea Michx. Native SAGR

  grassy arrowhead · Alismataceae
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  Sagittaria graminea Michx. var. graminea Native SAGRG

  grassy arrowhead · Alismataceae
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  Sagittaria platyphylla (Engelm.) J.G. Sm. Native SAPL

  delta arrowhead · Alismataceae
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  Salvia coccinea P.J. Buchoz ex Etlinger Native SACO5

  blood sage · Lamiaceae
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  Salvia lyrata L. Native SALY2

  lyreleaf sage · Lamiaceae
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  Samolus valerandi L. Both SAVA3

  seaside brookweed · Primulaceae
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  Samolus valerandi L. ssp. parviflorus (Raf.) Hultén Native SAVAP

  seaside brookweed · Primulaceae
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  Sarracenia alata Alph. Wood Native SAAL4

  yellow trumpets · Sarraceniaceae
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  Saururus cernuus L. Native SACE

  lizard's tail · Saururaceae
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  Schedonorus arundinaceus (Schreb.) Dumort., nom. cons. Introduced SCAR7

  tall fescue · Poaceae
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  Schizachyrium scoparium (Michx.) Nash Native SCSC

  little bluestem · Poaceae
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  Scirpus cyperinus (L.) Kunth Native SCCY

  woolgrass · Cyperaceae
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  Scleria oligantha Michx. Native SCOL2

  littlehead nutrush · Cyperaceae
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  Scleria reticularis Michx. Native SCRE

  netted nutrush · Cyperaceae
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  Scleria triglomerata Michx. Native SCTR

  whip nutrush · Cyperaceae
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  Scutellaria cardiophylla Engelm. & A. Gray Native SCCA4

  gulf skullcap · Lamiaceae
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  Scutellaria parvula Michx. Native SCPA7

  small skullcap · Lamiaceae
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  Selaginella apoda (L.) Spring Native SEAP

  meadow spikemoss · Selaginellaceae
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  Senecio ampullaceus Hook. Native SEAM2

  Texas ragwort · Asteraceae
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  Senna obtusifolia (L.) Irwin & Barneby Native SEOB4

  Java-bean · Fabaceae
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  Senna occidentalis (L.) Link Introduced SEOC2

  septicweed · Fabaceae