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 301–350 of 4,111.

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  Armeria maritima (Mill.) Willd. Native ARMA6

  thrift seapink · Plumbaginaceae 2 counties
• 
  Armeria maritima (Mill.) Willd. ssp. sibirica (Turcz. ex Boiss.) Nyman Native ARMAS

  Siberian sea thrift · Plumbaginaceae 2 counties
• 
  Armoracia rusticana G. Gaertn., B. Mey. & Scherb. Introduced ARRU4

  horseradish · Brassicaceae 3 counties
• 
  Arnica angustifolia Vahl Native ARAN5

  narrowleaf arnica · Asteraceae 2 counties
• 
  Arnica angustifolia Vahl ssp. tomentosa (Macoun) G.W. Douglas & G. Ruyle-Douglas Native ARANT

  narrowleaf arnica · Asteraceae 2 counties
• 
  Arnica chamissonis Less. Native ARCH3

  Chamisso arnica · Asteraceae 17 counties
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  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire Native ARCHF

  Chamisso arnica · Asteraceae 17 counties
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  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire var. andina (Nutt.) Ediger & T.M. Barkley Native ARCHA2

  Chamisso arnica · Asteraceae 17 counties
• 
  Arnica cordifolia Hook. Native ARCO9

  heartleaf arnica · Asteraceae 36 counties
• 
  Arnica fulgens Pursh Native ARFU3

  foothill arnica · Asteraceae 11 counties
• 
  Arnica latifolia Bong. Native ARLA8

  broadleaf arnica · Asteraceae 15 counties
• 
  Arnica longifolia D.C. Eaton Native ARLO6

  spearleaf arnica · Asteraceae 3 counties
• 
  Arnica mollis Hook. Native ARMO4

  hairy arnica · Asteraceae 21 counties
• 
  Arnica parryi A. Gray Native ARPA13

  Parry's arnica · Asteraceae 19 counties
• 
  Arnica parryi A. Gray ssp. parryi Native ARPAP3

  Parry's arnica · Asteraceae 19 counties
• 
  Arnica rydbergii Greene Native ARRY

  Rydberg's arnica · Asteraceae 12 counties
• 
  Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl Introduced AREL3

  tall oatgrass · Poaceae 4 counties
• 
  Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl var. elatius Introduced ARELE

  tall oatgrass · Poaceae 4 counties
• 
  Artemisia absinthium L. Introduced ARAB3

  absinthium · Asteraceae 3 counties
• 
  Artemisia annua L. Introduced ARAN3

  sweet sagewort · Asteraceae 1 county
• 
  Artemisia arbuscula Nutt. Native ARAR8

  little sagebrush · Asteraceae 7 counties
• 
  Artemisia arbuscula Nutt. ssp. arbuscula Native ARARA

  little sagebrush · Asteraceae 7 counties
• 
  Artemisia arctica Less. Native ARAR9

  boreal sagebrush · Asteraceae 11 counties
• 
  Artemisia arctica Less. ssp. arctica Native ARARA2

  boreal sagebrush · Asteraceae 11 counties
• 
  Artemisia biennis Willd. Both ARBI2

  biennial wormwood · Asteraceae 18 counties
• 
  Artemisia biennis Willd. var. biennis Introduced ARBIB

  biennial wormwood · Asteraceae 18 counties
• 
  Artemisia bigelovii A. Gray Native ARBI3

  Bigelow sage · Asteraceae 14 counties
• 
  Artemisia campestris L. Native ARCA12

  field sagewort · Asteraceae 37 counties
• 
  Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. Native ARCAB2

  field sagewort · Asteraceae 26 counties
• 
  Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. var. borealis (Pall.) M. Peck Native ARCAB4

  field sagewort · Asteraceae 15 counties
• 
  Artemisia campestris L. ssp. borealis (Pall.) H.M. Hall & Clem. var. scouleriana (Hook.) Cronquist Native ARCAS5

  field sagewort · Asteraceae 18 counties
• 
  Artemisia campestris L. ssp. caudata (Michx.) H.M. Hall & Clem. Native ARCAC

  field sagewort · Asteraceae 17 counties
• 
  Artemisia cana Pursh Native ARCA13

  silver sagebrush · Asteraceae 11 counties
• 
  Artemisia cana Pursh ssp. cana Native ARCAC5

  silver sagebrush · Asteraceae 10 counties
• 
  Artemisia carruthii Alph. Wood ex Carruth. Native ARCA14

  Carruth's sagewort · Asteraceae 24 counties
• 
  Artemisia dracunculus L. Native ARDR4

  tarragon · Asteraceae 35 counties
• 
  Artemisia filifolia Torr. Native ARFI2

  sand sagebrush · Asteraceae 19 counties
• 
  Artemisia franserioides Greene Native ARFR3

  ragweed sagebrush · Asteraceae 10 counties
• 
  Artemisia frigida Willd. Native ARFR4

  prairie sagewort · Asteraceae 44 counties
• 
  Artemisia longifolia Nutt. Native ARLO7

  longleaf wormwood · Asteraceae 3 counties
• 
  Artemisia ludoviciana Nutt. Both ARLU

  white sagebrush · Asteraceae 53 counties
• 
  Artemisia ludoviciana Nutt. ssp. albula (Wooton) D.D. Keck Native ARLUA

  white sagebrush · Asteraceae 7 counties
• 
  Artemisia ludoviciana Nutt. ssp. incompta (Nutt.) D.D. Keck Native ARLUI2

  white sagebrush · Asteraceae 25 counties
• 
  Artemisia ludoviciana Nutt. ssp. ludoviciana Native ARLUL2

  white sagebrush · Asteraceae 46 counties
• 
  Artemisia ludoviciana Nutt. ssp. mexicana (Willd. ex Spreng.) D.D. Keck Native ARLUM2

  white sagebrush · Asteraceae 6 counties
• 
  Artemisia michauxiana Besser Native ARMI4

  Michaux's wormwood · Asteraceae 9 counties
• 
  Artemisia nova A. Nelson Native ARNO4

  black sagebrush · Asteraceae 9 counties
• ⚘
  Artemisia parryi A. Gray Native ARPA17

  Parry's wormwood · Asteraceae 2 counties
• 
  Artemisia pattersonii A. Gray Native ARPA18

  Patterson's wormwood · Asteraceae 5 counties
• 
  Artemisia pedatifida Nutt. Native ARPE6

  birdfoot sagebrush · Asteraceae 1 county