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 1,451–1,500 of 4,111.

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  Elymus lanceolatus (Scribn. & J.G. Sm.) Gould ssp. lanceolatus Native ELLAL

  thickspike wheatgrass · Poaceae 23 counties
• 
  Elymus multisetus M.E. Jones Native ELMU3

  big squirreltail · Poaceae 1 county
• 
  Elymus repens (L.) Gould Introduced ELRE4

  quackgrass · Poaceae 26 counties
• 
  Elymus scribneri (Vasey) M.E. Jones Native ELSC4

  spreading wheatgrass · Poaceae 22 counties
• ⚘
  Elymus submuticus (Hook.) Smyth & Smyth Native ELSU

  Virginia wildrye · Poaceae 2 counties
• 
  Elymus trachycaulus (Link) Gould ex Shinners Native ELTR7

  slender wheatgrass · Poaceae 42 counties
• 
  Elymus trachycaulus (Link) Gould ex Shinners ssp. subsecundus (Link) Á. Löve & D. Löve Native ELTRS

  slender wheatgrass · Poaceae 1 county
• 
  Elymus trachycaulus (Link) Gould ex Shinners ssp. trachycaulus Native ELTRT

  slender wheatgrass · Poaceae 35 counties
• 
  Elymus virginicus L. Native ELVI3

  Virginia wildrye · Poaceae 2 counties
• 
  Elymus virginicus L. var. virginicus Native ELVIV

  Virginia wildrye · Poaceae 2 counties
• ⚘
  Elymus ×saundersii Vasey (pro sp.) [elymoides × trachycaulus] Native ELSA4

  Poaceae 1 county
• 
  Encelia nutans Eastw. Native ENNU4

  nodding sunray · Asteraceae 2 counties
• 
  Enceliopsis nudicaulis (A. Gray) A. Nelson Native ENNU

  nakedstem sunray · Asteraceae 1 county
• 
  Enceliopsis nudicaulis (A. Gray) A. Nelson var. nudicaulis Native ENNUN

  nakedstem sunray · Asteraceae 1 county
• 
  Endolepis dioica (Nutt.) Standl. Native ENDI

  Suckley's endolepis · Chenopodiaceae 1 county
• 
  Engelmannia peristenia (Raf.) Goodman & C.A. Lawson Native ENPE4

  Engelmann's daisy · Asteraceae 6 counties
• 
  Ephedra cutleri Peebles Native EPCU

  Cutler's jointfir · Ephedraceae 1 county
• 
  Ephedra torreyana S. Watson Native EPTO

  Torrey's jointfir · Ephedraceae 7 counties
• 
  Ephedra torreyana S. Watson var. torreyana Native EPTOT

  Torrey's jointfir · Ephedraceae 7 counties
• 
  Ephedra viridis Coville Native EPVI

  mormon tea · Ephedraceae 8 counties
• 
  Epilobium anagallidifolium Lam. Native EPAN4

  pimpernel willowherb · Onagraceae 14 counties
• 
  Epilobium brachycarpum C. Presl Native EPBR3

  tall annual willowherb · Onagraceae 26 counties
• 
  Epilobium ciliatum Raf. Native EPCI

  fringed willowherb · Onagraceae 40 counties
• 
  Epilobium ciliatum Raf. ssp. ciliatum Native EPCIC

  fringed willowherb · Onagraceae 8 counties
• 
  Epilobium ciliatum Raf. ssp. glandulosum (Lehm.) Hoch & P.H. Raven Native EPCIG

  fringed willowherb · Onagraceae 34 counties
• 
  Epilobium clavatum Trel. Native EPCL

  talus willowherb · Onagraceae 11 counties
• 
  Epilobium halleanum Hausskn. Native EPHA

  glandular willowherb · Onagraceae 15 counties
• 
  Epilobium hornemannii Rchb. Native EPHO

  Hornemann's willowherb · Onagraceae 22 counties
• 
  Epilobium hornemannii Rchb. ssp. hornemannii Native EPHOH

  Hornemann's willowherb · Onagraceae 22 counties
• 
  Epilobium lactiflorum Hausskn. Native EPLA3

  milkflower willowherb · Onagraceae 16 counties
• 
  Epilobium leptophyllum Raf. Native EPLE2

  bog willowherb · Onagraceae 6 counties
• 
  Epilobium palustre L. Native EPPA

  marsh willowherb · Onagraceae 1 county
• 
  Epilobium saximontanum Hausskn. Native EPSA

  Rocky Mountain willowherb · Onagraceae 24 counties
• 
  Epipactis gigantea Douglas ex Hook. Native EPGI

  stream orchid · Orchidaceae 8 counties
• 
  Epipactis helleborine (L.) Crantz Introduced EPHE

  broadleaf helleborine · Orchidaceae 1 county
• 
  Equisetum arvense L. Native EQAR

  field horsetail · Equisetaceae 32 counties
• 
  Equisetum hyemale L. Native EQHY

  scouringrush horsetail · Equisetaceae 22 counties
• 
  Equisetum hyemale L. var. affine (Engelm.) A.A. Eaton Native EQHYA

  scouringrush horsetail · Equisetaceae 22 counties
• 
  Equisetum laevigatum A. Braun Native EQLA

  smooth horsetail · Equisetaceae 42 counties
• 
  Equisetum pratense Ehrh. Native EQPR

  meadow horsetail · Equisetaceae 8 counties
• 
  Equisetum variegatum Schleich. ex F. Weber & D. Mohr Native EQVA

  variegated scouringrush · Equisetaceae 13 counties
• 
  Equisetum variegatum Schleich. ex F. Weber & D. Mohr var. variegatum Native EQVAV

  variegated scouringrush · Equisetaceae 13 counties
• ⚘
  Equisetum ×ferrissii Clute (pro sp.) [hyemale × laevigatum] Native EQFE

  Equisetaceae 2 counties
• 
  Eragrostis barrelieri Daveau Introduced ERBA2

  Mediterranean lovegrass · Poaceae 6 counties
• 
  Eragrostis cilianensis (All.) Vign. ex Janchen Introduced ERCI

  stinkgrass · Poaceae 19 counties
• 
  Eragrostis curtipedicellata Buckley Native ERCU

  gummy lovegrass · Poaceae 2 counties
• 
  Eragrostis curvula (Schrad.) Nees Introduced ERCU2

  weeping lovegrass · Poaceae 3 counties
• 
  Eragrostis hypnoides (Lam.) Britton, Sterns & Poggenb. Native ERHY

  teal lovegrass · Poaceae 4 counties
• ⚘
  Eragrostis lutescens Scribn. Native ERLU2

  sixweeks lovegrass · Poaceae 1 county
• 
  Eragrostis mexicana (Hornem.) Link Native ERME

  Mexican lovegrass · Poaceae 3 counties