Colorado

• Adams 08001
  205 taxa Open ↗
• Alamosa 08003
  652 taxa Open ↗
• Arapahoe 08005
  254 taxa Open ↗
• Archuleta 08007
  651 taxa Open ↗
• Baca 08009
  785 taxa Open ↗
• Bent 08011
  267 taxa Open ↗
• Boulder 08013
  1,961 taxa Open ↗
• Broomfield 08014
  0 taxa Open ↗
• Chaffee 08015
  607 taxa Open ↗
• Cheyenne 08017
  694 taxa Open ↗

Showing 3,901–3,950 of 4,111.

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  Thymophylla aurea (A. Gray) Greene ex Britton var. aurea Native THAUA

  manyawn pricklyleaf · Asteraceae 8 counties
• 
  Tidestromia lanuginosa (Nutt.) Standl. Native TILA2

  woolly tidestromia · Amaranthaceae 7 counties
• 
  Tiquilia nuttallii (Hook.) A.T. Richardson Native TINU2

  Nuttall's crinklemat · Boraginaceae 1 county
• 
  Tonestus lyallii (A. Gray) A. Nelson Native TOLY

  Lyall's goldenweed · Asteraceae 5 counties
• 
  Tonestus pygmaeus (Torr. & A. Gray) A. Nelson Native TOPY

  pygmy goldenweed · Asteraceae 22 counties
• 
  Torreyochloa pallida (Torr.) Church Native TOPA6

  pale false mannagrass · Poaceae 7 counties
• 
  Torreyochloa pallida (Torr.) Church var. pauciflora (J. Presl) J.I. Davis Native TOPAP3

  pale false mannagrass · Poaceae 7 counties
• 
  Townsendia annua Beaman Native TOAN

  annual Townsend daisy · Asteraceae 5 counties
• 
  Townsendia eximia A. Gray Native TOEX

  tall Townsend daisy · Asteraceae 3 counties
• 
  Townsendia exscapa (Richardson) Porter Native TOEX2

  stemless Townsend daisy · Asteraceae 33 counties
• 
  Townsendia fendleri A. Gray Native TOFE

  Fendler's Townsend daisy · Asteraceae 2 counties
• 
  Townsendia glabella A. Gray Native TOGL4

  Gray's Townsend daisy · Asteraceae 3 counties
• 
  Townsendia grandiflora Nutt. Native TOGR

  largeflower Townsend daisy · Asteraceae 12 counties
• 
  Townsendia hookeri Beaman Native TOHO

  Hooker's Townsend daisy · Asteraceae 16 counties
• 
  Townsendia incana Nutt. Native TOIN

  hoary Townsend daisy · Asteraceae 10 counties
• 
  Townsendia leptotes (A. Gray) Osterh. Native TOLE

  common Townsend daisy · Asteraceae 7 counties
• 
  Townsendia rothrockii A. Gray ex Rothr. Native TORO

  Rothrock's Townsend daisy · Asteraceae 10 counties
• 
  Townsendia strigosa Nutt. Native TOST

  hairy Townsend daisy · Asteraceae 2 counties
• 
  Toxicodendron rydbergii (Small ex Rydb.) Greene Native TORY

  western poison ivy · Anacardiaceae 16 counties
• 
  Tradescantia occidentalis (Britton) Smyth Native TROC

  prairie spiderwort · Commelinaceae 27 counties
• 
  Tradescantia occidentalis (Britton) Smyth var. occidentalis Native TROCO

  prairie spiderwort · Commelinaceae 5 counties
• 
  Tradescantia occidentalis (Britton) Smyth var. scopulorum (Rose) E.S. Anderson & Woodson Native TROCS

  prairie spiderwort · Commelinaceae 19 counties
• 
  Tragia ramosa Torr. Native TRRA5

  branched noseburn · Euphorbiaceae 13 counties
• 
  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae 38 counties
• 
  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae 13 counties
• 
  Tragopogon pratensis L. Introduced TRPR

  Jack-go-to-bed-at-noon · Asteraceae 10 counties
• 
  Trautvetteria caroliniensis (Walter) Vail Native TRCA

  Carolina bugbane · Ranunculaceae 4 counties
• 
  Trautvetteria caroliniensis (Walter) Vail var. occidentalis (A. Gray) C.L. Hitchc. Native TRCAO

  western bugbane · Ranunculaceae 4 counties
• 
  Trianthema portulacastrum L. Native TRPO2

  desert horsepurslane · Aizoaceae 1 county
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae 24 counties
• 
  Trichophorum pumilum (Vahl) Schinz & Thell. Native TRPU18

  Rolland's bulrush · Cyperaceae 1 county
• 
  Trichostema arizonicum A. Gray Native TRAR

  Arizona bluecurls · Lamiaceae 1 county
• 
  Tridens muticus (Torr.) Nash Native TRMU

  slim tridens · Poaceae 5 counties
• 
  Tridens muticus (Torr.) Nash var. elongatus (Buckley) Shinners Native TRMUE

  slim tridens · Poaceae 5 counties
• 
  Trifolium andinum Nutt. Native TRAN2

  Intermountain clover · Fabaceae 1 county
• 
  Trifolium andinum Nutt. var. andinum Native TRANA3

  Intermountain clover · Fabaceae 1 county
• 
  Trifolium attenuatum Greene Native TRAT

  Rocky Mountain clover · Fabaceae 12 counties
• 
  Trifolium brandegeei S. Watson Native TRBR2

  Brandegee's clover · Fabaceae 7 counties
• 
  Trifolium dasyphyllum Torr. & A. Gray Native TRDA2

  alpine clover · Fabaceae 22 counties
• 
  Trifolium dasyphyllum Torr. & A. Gray ssp. dasyphyllum Native TRDAD

  alpine clover · Fabaceae 22 counties
• 
  Trifolium fragiferum L. Introduced TRFR2

  strawberry clover · Fabaceae 5 counties
• 
  Trifolium gymnocarpon Nutt. Native TRGY

  hollyleaf clover · Fabaceae 11 counties
• 
  Trifolium gymnocarpon Nutt. ssp. gymnocarpon Native TRGYG

  hollyleaf clover · Fabaceae 1 county
• 
  Trifolium hybridum L. Introduced TRHY

  alsike clover · Fabaceae 22 counties
• 
  Trifolium kingii S. Watson Native TRKI

  King's clover · Fabaceae 4 counties
• 
  Trifolium kingii S. Watson ssp. kingii Native TRKIK

  King's clover · Fabaceae 4 counties
• 
  Trifolium longipes Nutt. Native TRLO

  longstalk clover · Fabaceae 13 counties
• 
  Trifolium longipes Nutt. ssp. pygmaeum (A. Gray) J.M. Gillett Native TRLOP2

  pygmy clover · Fabaceae 13 counties
• 
  Trifolium nanum Torr. Native TRNA2

  dwarf clover · Fabaceae 22 counties
• 
  Trifolium parryi A. Gray Native TRPA5

  Parry's clover · Fabaceae 26 counties