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 401–434 of 434 (introduced).

• 
  Tanacetum parthenium (L.) Sch. Bip. Introduced TAPA6

  feverfew · Asteraceae 1 county
• 
  Tanacetum vulgare L. Introduced TAVU

  common tansy · Asteraceae 4 counties
• 
  Taraxacum laevigatum (Willd.) DC. Introduced TALA2

  rock dandelion · Asteraceae 1 county
• 
  Taraxacum officinale F.H. Wigg. ssp. officinale Introduced TAOFO

  common dandelion · Asteraceae 1 county
• 
  Thinopyrum intermedium (Host) Barkworth & D.R. Dewey Introduced THIN6

  intermediate wheatgrass · Poaceae 19 counties
• 
  Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang Introduced THPO7

  tall wheatgrass · Poaceae 11 counties
• 
  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae 29 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
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae 24 counties
• 
  Trifolium fragiferum L. Introduced TRFR2

  strawberry clover · Fabaceae 5 counties
• 
  Trifolium hybridum L. Introduced TRHY

  alsike clover · Fabaceae 22 counties
• 
  Trifolium pratense L. Introduced TRPR2

  red clover · Fabaceae 18 counties
• 
  Trifolium repens L. Introduced TRRE3

  white clover · Fabaceae 29 counties
• 
  Tripleurospermum perforatum (Mérat) M. Lainz Introduced TRPE21

  scentless false mayweed · Asteraceae 8 counties
• 
  Triticum aestivum L. Introduced TRAE

  common wheat · Poaceae 8 counties
• 
  Ulmus parvifolia Jacq. Introduced ULPA

  Chinese elm · Ulmaceae 1 county
• 
  Ulmus pumila L. Introduced ULPU

  Siberian elm · Ulmaceae 14 counties
• 
  Vaccaria hispanica (Mill.) Rauschert Introduced VAHI2

  cow soapwort · Caryophyllaceae 7 counties
• 
  Verbascum blattaria L. Introduced VEBL

  moth mullein · Scrophulariaceae 2 counties
• 
  Verbascum phlomoides L. Introduced VEPH

  orange mullein · Scrophulariaceae 2 counties
• 
  Verbascum thapsus L. Introduced VETH

  common mullein · Scrophulariaceae 21 counties
• ⚘
  Verbascum ×pterocaulon Franch. [blattaria × thapsus] Introduced VEPT

  mullein · Scrophulariaceae 1 county
• 
  Veronica biloba L. Introduced VEBI2

  twolobe speedwell · Scrophulariaceae 11 counties
• 
  Veronica persica Poir. Introduced VEPE3

  birdeye speedwell · Scrophulariaceae 1 county
• 
  Veronica polita Fr. Introduced VEPO

  gray field speedwell · Scrophulariaceae 3 counties
• 
  Viburnum lantana L. Introduced VILA

  wayfaringtree · Caprifoliaceae 2 counties
• 
  Vicia sativa L. Introduced VISA

  garden vetch · Fabaceae 3 counties
• 
  Vicia sativa L. ssp. nigra (L.) Ehrh. Introduced VISAN2

  garden vetch · Fabaceae 3 counties
• 
  Vicia villosa Roth Introduced VIVI

  winter vetch · Fabaceae 10 counties
• 
  Vicia villosa Roth ssp. villosa Introduced VIVIV

  winter vetch · Fabaceae 10 counties
• 
  Viola odorata L. Introduced VIOD

  sweet violet · Violaceae 1 county
• 
  Xanthium spinosum L. Introduced XASP2

  spiny cocklebur · Asteraceae 1 county