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 901–950 of 4,111.

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  Caryopteris ×clandonensis hort. ex Rehder [incana × mongholica] Introduced CACL7

  caryopteris · Verbenaceae 1 county
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  Castilleja angustifolia (Nutt.) G. Don Native CAAN7

  northwestern Indian paintbrush · Scrophulariaceae 1 county
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  Castilleja angustifolia (Nutt.) G. Don var. dubia A. Nelson Native CAAND

  northwestern Indian paintbrush · Scrophulariaceae 1 county
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  Castilleja flava S. Watson Native CAFL7

  yellow Indian paintbrush · Scrophulariaceae 7 counties
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  Castilleja flava S. Watson var. flava Native CAFLF3

  yellow Indian paintbrush · Scrophulariaceae 7 counties
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  Castilleja haydenii (A. Gray) Cockerell Native CAHA16

  Hayden's Indian paintbrush · Scrophulariaceae 9 counties
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  Castilleja integra A. Gray Native CAIN14

  wholeleaf Indian paintbrush · Scrophulariaceae 23 counties
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  Castilleja integra A. Gray var. integra Native CAINI5

  wholeleaf Indian paintbrush · Scrophulariaceae 23 counties
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  Castilleja linariifolia Benth. Native CALI4

  Wyoming Indian paintbrush · Scrophulariaceae 32 counties
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  Castilleja lineata Greene Native CALI5

  marshmeadow Indian paintbrush · Scrophulariaceae 2 counties
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  Castilleja miniata Douglas ex Hook. Native CAMI12

  giant red Indian paintbrush · Scrophulariaceae 31 counties
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  Castilleja miniata Douglas ex Hook. ssp. miniata Native CAMIM5

  giant red Indian paintbrush · Scrophulariaceae 31 counties
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  Castilleja minor (A. Gray) A. Gray Native CAMI13

  lesser Indian paintbrush · Scrophulariaceae 3 counties
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  Castilleja minor (A. Gray) A. Gray ssp. minor Native CAMIM6

  lesser Indian paintbrush · Scrophulariaceae 3 counties
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  Castilleja occidentalis Torr. Native CAOC4

  western Indian paintbrush · Scrophulariaceae 25 counties
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  Castilleja puberula Rydb. Native CAPU19

  shortflower Indian paintbrush · Scrophulariaceae 4 counties
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  Castilleja rhexiifolia Rydb. Native CARH4

  splitleaf Indian paintbrush · Scrophulariaceae 27 counties
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  Castilleja scabrida Eastw. Native CASC19

  rough Indian paintbrush · Scrophulariaceae 5 counties
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  Castilleja scabrida Eastw. var. scabrida Native CASCS4

  Zion Indian paintbrush · Scrophulariaceae 5 counties
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  Castilleja sessiliflora Pursh Native CASE5

  downy paintedcup · Scrophulariaceae 16 counties
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  Castilleja sulphurea Rydb. Native CASU12

  sulphur Indian paintbrush · Scrophulariaceae 31 counties
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  Catabrosa aquatica (L.) P. Beauv. Native CAAQ3

  water whorlgrass · Poaceae 11 counties
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  Catabrosa aquatica (L.) P. Beauv. var. aquatica Native CAAQA6

  water whorlgrass · Poaceae 11 counties
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  Catalpa speciosa (Warder) Warder ex Engelm. Native CASP8

  northern catalpa · Bignoniaceae 1 county
• 
  Caulanthus crassicaulis (Torr.) S. Watson Native CACR11

  thickstem wild cabbage · Brassicaceae 2 counties
• 
  Caulanthus crassicaulis (Torr.) S. Watson var. crassicaulis Native CACRC

  thickstem wild cabbage · Brassicaceae 2 counties
• 
  Ceanothus fendleri A. Gray Native CEFE

  Fendler's ceanothus · Rhamnaceae 22 counties
• 
  Ceanothus herbaceus Raf. Native CEHE

  Jersey tea · Rhamnaceae 6 counties
• 
  Ceanothus martinii M.E. Jones Native CEMA2

  Martin's ceanothus · Rhamnaceae 2 counties
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  Ceanothus velutinus Douglas ex Hook. Native CEVE

  snowbrush ceanothus · Rhamnaceae 13 counties
• 
  Ceanothus velutinus Douglas ex Hook. var. velutinus Native CEVEV4

  snowbrush ceanothus · Rhamnaceae 13 counties
• 
  Celtis laevigata Willd. Native CELA

  sugarberry · Ulmaceae 13 counties
• 
  Celtis laevigata Willd. var. reticulata (Torr.) L.D. Benson Native CELAR

  netleaf hackberry · Ulmaceae 13 counties
• 
  Celtis occidentalis L. Native CEOC

  common hackberry · Ulmaceae 7 counties
• 
  Cenchrus longispinus (Hack.) Fernald Native CELO3

  mat sandbur · Poaceae 18 counties
• 
  Cenchrus spinifex Cav. Native CESP4

  coastal sandbur · Poaceae 1 county
• 
  Centaurea cyanus L. Introduced CECY2

  garden cornflower · Asteraceae 2 counties
• 
  Centaurea diffusa Lam. Introduced CEDI3

  diffuse knapweed · Asteraceae 8 counties
• 
  Centaurea eriophora L. Introduced CEER

  wild sandheath · Asteraceae 1 county
• 
  Centaurea solstitialis L. Introduced CESO3

  yellow star-thistle · Asteraceae 3 counties
• 
  Centaurea stoebe L. Introduced CEST8

  spotted knapweed · Asteraceae 7 counties
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  Centaurea stoebe L. ssp. micranthos (Gugler) Hayek Introduced CESTM

  spotted knapweed · Asteraceae 7 counties
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  Centaurium arizonicum (A. Gray) A. Heller Native CEAR12

  Arizona centaury · Gentianaceae 1 county
• 
  Centaurium exaltatum (Griseb.) W. Wight ex Piper Native CEEX

  desert centaury · Gentianaceae 3 counties
• 
  Centaurium pulchellum (Sw.) Druce Introduced CEPU3

  branched centaury · Gentianaceae 1 county
• 
  Cerastium arvense L. Both CEAR4

  field chickweed · Caryophyllaceae 35 counties
• 
  Cerastium arvense L. ssp. strictum (L.) Ugborogho Native CEARS2

  field chickweed · Caryophyllaceae 35 counties
• 
  Cerastium beeringianum Cham. & Schltdl. Native CEBE2

  Bering chickweed · Caryophyllaceae 18 counties
• 
  Cerastium beeringianum Cham. & Schltdl. ssp. earlei (Rydb.) Hultén Native CEBEE

  Bering chickweed · Caryophyllaceae 18 counties
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  Cerastium brachypodum (Engelm. ex A. Gray) B.L. Rob. Native CEBR3

  shortstalk chickweed · Caryophyllaceae 7 counties