California

• Alameda 06001
  1,856 taxa Open ↗
• Alpine 06003
  1,174 taxa Open ↗
• Amador 06005
  1,226 taxa Open ↗
• Butte 06007
  2,704 taxa Open ↗
• Calaveras 06009
  1,227 taxa Open ↗
• Colusa 06011
  1,330 taxa Open ↗
• Contra Costa 06013
  1,712 taxa Open ↗
• Del Norte 06015
  1,424 taxa Open ↗
• El Dorado 06017
  1,950 taxa Open ↗
• Fresno 06019
  2,373 taxa Open ↗

Showing 8,101–8,150 of 8,499 (native).

• 
  Thermopsis californica S. Watson var. semota (Jeps.) C.J. Chen & B.L. Turner Native THCAS2

  California goldenbanner · Fabaceae 1 county
• 
  Thermopsis gracilis Howell Native THGR6

  slender goldenbanner · Fabaceae 5 counties
• 
  Thermopsis gracilis Howell var. gracilis Native THGRG

  slender goldenbanner · Fabaceae 5 counties
• 
  Thermopsis macrophylla Hook. & Arn. Native THMA2

  Santa Inez goldenbanner · Fabaceae 2 counties
• 
  Thermopsis robusta Howell Native THRO4

  showy goldenbanner · Fabaceae 3 counties
• ⚘
  Thinopyrum junceiforme (Á. Löve & D. Löve) Á. Löve Native THJU3

  Russian wheatgrass · Poaceae 1 county
• 
  Thuja plicata Donn ex D. Don Native THPL

  western redcedar · Cupressaceae 4 counties
• 
  Thymophylla pentachaeta (DC.) Small Native THPE4

  fiveneedle pricklyleaf · Asteraceae 2 counties
• 
  Thymophylla pentachaeta (DC.) Small var. belenidium (DC.) Strother Native THPEB

  fiveneedle pricklyleaf · Asteraceae 2 counties
• 
  Thysanocarpus conchuliferus Greene Native THCO9

  Santa Cruz Island fringepod · Brassicaceae 1 county
• 
  Thysanocarpus curvipes Hook. Native THCU

  sand fringepod · Brassicaceae 52 counties
• 
  Thysanocarpus laciniatus Nutt. Native THLA3

  mountain fringepod · Brassicaceae 27 counties
• 
  Thysanocarpus radians Benth. Native THRA

  ribbed fringepod · Brassicaceae 25 counties
• 
  Tiarella trifoliata L. Native TITR

  threeleaf foamflower · Saxifragaceae 11 counties
• 
  Tiarella trifoliata L. var. trifoliata Native TITRT

  threeleaf foamflower · Saxifragaceae 2 counties
• 
  Tiarella trifoliata L. var. unifoliata (Hook.) Kurtz Native TITRU

  oneleaf foamflower · Saxifragaceae 11 counties
• 
  Tidestromia lanuginosa (Nutt.) Standl. Native TILA2

  woolly tidestromia · Amaranthaceae 1 county
• ⚘
  Tidestromia oblongifolia (S. Watson) Standl. Native TIOB

  Arizona honeysweet · Amaranthaceae 6 counties
• 
  Tiquilia canescens (DC.) A.T. Richardson Native TICA3

  woody crinklemat · Boraginaceae 4 counties
• 
  Tiquilia canescens (DC.) A.T. Richardson var. canescens Native TICAC

  woody crinklemat · Boraginaceae 4 counties
• 
  Tiquilia canescens (DC.) A.T. Richardson var. pulchella (I.M. Johnst.) A.T. Richardson Native TICAP

  woody crinklemat · Boraginaceae 2 counties
• 
  Tiquilia nuttallii (Hook.) A.T. Richardson Native TINU2

  Nuttall's crinklemat · Boraginaceae 8 counties
• 
  Tiquilia palmeri (A. Gray) A.T. Richardson Native TIPA

  Palmer's crinklemat · Boraginaceae 4 counties
• 
  Tiquilia plicata (Torr.) A.T. Richardson Native TIPL2

  fanleaf crinklemat · Boraginaceae 6 counties
• 
  Tolmiea menziesii (Pursh) Torr. & A. Gray Native TOME

  youth on age · Saxifragaceae 8 counties
• 
  Tonella tenella (Benth.) A. Heller Native TOTE

  lesser baby innocence · Scrophulariaceae 19 counties
• 
  Tonestus eximius (H.M. Hall) A. Nelson & J.F. Macbr. Native TOEX3

  Lake Tahoe serpentweed · Asteraceae 2 counties
• 
  Tonestus lyallii (A. Gray) A. Nelson Native TOLY

  Lyall's goldenweed · Asteraceae 2 counties
• 
  Tonestus peirsonii (D.D. Keck) G.L. Nesom & D. Morgan Native TOPE

  Peirson's serpentweed · Asteraceae 3 counties
• 
  Torreya californica Torr. Native TOCA

  California nutmeg · Taxaceae 27 counties
• 
  Torreyochloa californica (Beetle) Church Native TOCA2

  Sierra false mannagrass · Poaceae 2 counties
• 
  Torreyochloa erecta (Hitchc.) Church Native TOER

  spiked false mannagrass · Poaceae 15 counties
• 
  Torreyochloa pallida (Torr.) Church Native TOPA6

  pale false mannagrass · Poaceae 21 counties
• 
  Torreyochloa pallida (Torr.) Church var. pauciflora (J. Presl) J.I. Davis Native TOPAP3

  pale false mannagrass · Poaceae 21 counties
• 
  Townsendia condensata Parry ex A. Gray Native TOCO2

  cushion Townsend daisy · Asteraceae 1 county
• 
  Townsendia condensata Parry ex A. Gray var. condensata Native TOCOC

  cushion Townsend daisy · Asteraceae 1 county
• 
  Townsendia florifer (Hook.) A. Gray Native TOFL5

  showy Townsend daisy · Asteraceae 1 county
• 
  Townsendia leptotes (A. Gray) Osterh. Native TOLE

  common Townsend daisy · Asteraceae 1 county
• 
  Townsendia parryi D.C. Eaton Native TOPA2

  Parry's Townsend daisy · Asteraceae 1 county
• 
  Townsendia scapigera D.C. Eaton Native TOSC

  tufted Townsend daisy · Asteraceae 4 counties
• 
  Toxicodendron diversilobum (Torr. & A. Gray) Greene Native TODI

  Pacific poison oak · Anacardiaceae 46 counties
• 
  Tracyina rostrata S.F. Blake Native TRRO

  Indian headdress · Asteraceae 4 counties
• 
  Tragia ramosa Torr. Native TRRA5

  branched noseburn · Euphorbiaceae 2 counties
• 
  Trautvetteria caroliniensis (Walter) Vail Native TRCA

  Carolina bugbane · Ranunculaceae 7 counties
• 
  Trautvetteria caroliniensis (Walter) Vail var. occidentalis (A. Gray) C.L. Hitchc. Native TRCAO

  western bugbane · Ranunculaceae 7 counties
• 
  Triantha occidentalis (S. Watson) Gates Native TROC7

  western false asphodel · Liliaceae 15 counties
• 
  Triantha occidentalis (S. Watson) Gates ssp. occidentalis Native TROCO2

  western false asphodel · Liliaceae 15 counties
• 
  Trianthema portulacastrum L. Native TRPO2

  desert horsepurslane · Aizoaceae 5 counties
• 
  Tricardia watsonii Torr. ex S. Watson Native TRWA2

  threehearts · Hydrophyllaceae 5 counties
• 
  Trichocoronis wrightii (Torr. & A. Gray) A. Gray Native TRWR2

  limestone bugheal · Asteraceae 4 counties