Contra Costa County

Showing 1,551–1,600 of 1,712.

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  Stachys rigida Nutt. ex Benth. Native STRI

  rough hedgenettle · Lamiaceae
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  Stachys rigida Nutt. ex Benth. var. quercetorum (A. Heller) G. Mulligan & D. Munro Native STRIQ2

  rough hedgenettle · Lamiaceae
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  Stachys rigida Nutt. ex Benth. var. rigida Native STRIR3

  rough hedgenettle · Lamiaceae
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  Stellaria media (L.) Vill. Introduced STME2

  common chickweed · Caryophyllaceae
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  Stellaria media (L.) Vill. ssp. pallida (Dumort.) Asch. & Graebn. Introduced STMEP

  common chickweed · Caryophyllaceae
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  Stellaria nitens Nutt. Native STNI

  shiny chickweed · Caryophyllaceae
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  Stephanomeria elata Nutt. Native STEL3

  Santa Barbara wirelettuce · Asteraceae
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  Stephanomeria exigua Nutt. Native STEX

  small wirelettuce · Asteraceae
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  Stephanomeria exigua Nutt. ssp. coronaria (Greene) Gottlieb Native STEXC3

  whiteplume wirelettuce · Asteraceae
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  Stephanomeria virgata Benth. Native STVI2

  rod wirelettuce · Asteraceae
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  Stephanomeria virgata Benth. ssp. pleurocarpa (Greene) Gottlieb Native STVIP

  wand wirelettuce · Asteraceae
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  Streptanthus albidus Greene Native STAL5

  Metcalf Canyon jewelflower · Brassicaceae
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  Streptanthus albidus Greene ssp. peramoenus (Greene) Kruckeb. Native STALP

  most beautiful jewelflower · Brassicaceae
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  Streptanthus hispidus A. Gray Native STHI2

  Mt. Diablo jewelflower · Brassicaceae
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  Streptanthus tortuosus Kellogg Native STTO3

  shieldplant · Brassicaceae
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  Streptanthus tortuosus Kellogg var. orbiculatus (Greene) H.M. Hall Native STTOO

  shieldplant · Brassicaceae
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  Stuckenia filiformis (Pers.) Börner Native STFI6

  fineleaf pondweed · Potamogetonaceae
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  Stuckenia filiformis (Pers.) Börner ssp. alpina (Blytt) Haynes, D.H. Les & M. Kral Native STFIA2

  fineleaf pondweed · Potamogetonaceae
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  Stuckenia pectinata (L.) Börner Native STPE15

  sago pondweed · Potamogetonaceae
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  Stylomecon heterophylla (Benth.) G. Taylor Native STHE3

  windpoppy · Papaveraceae
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  Suaeda moquinii (Torr.) Greene Native SUMO

  Mojave seablite · Chenopodiaceae
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  Symphoricarpos albus (L.) S.F. Blake Native SYAL

  common snowberry · Caprifoliaceae
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  Symphoricarpos albus (L.) S.F. Blake var. laevigatus (Fernald) S.F. Blake Native SYALL

  common snowberry · Caprifoliaceae
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  Symphoricarpos mollis Nutt. Native SYMO

  creeping snowberry · Caprifoliaceae
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  Symphyotrichum chilense (Nees) G.L. Nesom Native SYCH4

  Pacific aster · Asteraceae
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  Symphyotrichum chilense (Nees) G.L. Nesom var. chilense Native SYCHC

  Pacific aster · Asteraceae
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  Symphyotrichum lentum (Greene) G.L. Nesom Native SYLE2

  Suisun Marsh aster · Asteraceae
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  Tamarix parviflora DC. Introduced TAPA4

  smallflower tamarisk · Tamaricaceae
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  Tanacetum parthenium (L.) Sch. Bip. Introduced TAPA6

  feverfew · Asteraceae
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  Tauschia hartwegii (A. Gray) J.F. Macbr. Native TAHA2

  Hartweg's umbrellawort · Apiaceae
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  Tellima grandiflora (Pursh) Douglas ex Lindl. Native TEGR2

  bigflower tellima · Saxifragaceae
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  Tetragonia tetragonioides (Pall.) Kuntze Introduced TETE3

  New Zealand spinach · Aizoaceae
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  Thalictrum fendleri Engelm. ex A. Gray Native THFE

  Fendler's meadow-rue · Ranunculaceae
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  Thalictrum fendleri Engelm. ex A. Gray var. polycarpum Torr. Native THFEP2

  Fendler's meadow-rue · Ranunculaceae
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  Thinopyrum intermedium (Host) Barkworth & D.R. Dewey Introduced THIN6

  intermediate wheatgrass · Poaceae
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  Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang Introduced THPO7

  tall wheatgrass · Poaceae
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  Thysanocarpus curvipes Hook. Native THCU

  sand fringepod · Brassicaceae
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  Thysanocarpus laciniatus Nutt. Native THLA3

  mountain fringepod · Brassicaceae
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  Tonella tenella (Benth.) A. Heller Native TOTE

  lesser baby innocence · Scrophulariaceae
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  Torilis arvensis (Huds.) Link Introduced TOAR

  spreading hedgeparsley · Apiaceae
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  Torilis arvensis (Huds.) Link ssp. arvensis Introduced TOARA

  spreading hedgeparsley · Apiaceae
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  Torilis nodosa (L.) Gaertn. Introduced TONO

  knotted hedgeparsley · Apiaceae
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  Toxicodendron diversilobum (Torr. & A. Gray) Greene Native TODI

  Pacific poison oak · Anacardiaceae
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  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae
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  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae
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  Trichostema lanceolatum Benth. Native TRLA4

  vinegarweed · Lamiaceae
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  Trientalis borealis Raf. Native TRBO2

  starflower · Primulaceae
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  Trientalis borealis Raf. ssp. latifolia (Hook.) Hultén Native TRBOL

  broadleaf starflower · Primulaceae
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  Trifolium albopurpureum Torr. & A. Gray Native TRAL5

  rancheria clover · Fabaceae
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  Trifolium barbigerum Torr. Native TRBA

  bearded clover · Fabaceae