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 1,201–1,250 of 4,111.

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  Cryptantha pterocarya (Torr.) Greene var. cycloptera (Greene) J.F. Macbr. Native CRPTC

  wingnut cryptantha · Boraginaceae 1 county
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  Cryptantha pterocarya (Torr.) Greene var. pterocarya Native CRPTP2

  wingnut cryptantha · Boraginaceae 1 county
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  Cryptantha recurvata Coville Native CRRE5

  curvenut cryptantha · Boraginaceae 3 counties
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  Cryptantha rollinsii I.M. Johnst. Native CRRO6

  Rollins' cryptantha · Boraginaceae 1 county
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  Cryptantha scoparia A. Nelson Native CRSC2

  Pinyon Desert cryptantha · Boraginaceae 1 county
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  Cryptantha sericea (A. Gray) Payson Native CRSE3

  silky cryptantha · Boraginaceae 7 counties
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  Cryptantha setosissima (A. Gray) Payson Native CRSE5

  bristly cryptantha · Boraginaceae 1 county
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  Cryptantha stricta (Osterh.) Payson Native CRST5

  Yampa River cryptantha · Boraginaceae 6 counties
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  Cryptantha thyrsiflora (Greene) Payson Native CRTH

  calcareous cryptantha · Boraginaceae 21 counties
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  Cryptantha virgata (Porter) Payson Native CRVI4

  miner's candle · Boraginaceae 8 counties
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  Cryptantha watsonii (A. Gray) Greene Native CRWA2

  Watson's cryptantha · Boraginaceae 4 counties
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  Cryptantha weberi I.M. Johnst. Native CRWE2

  Weber's cryptantha · Boraginaceae 3 counties
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  Cryptogramma acrostichoides R. Br. Native CRAC3

  American rockbrake · Pteridaceae 22 counties
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  Cryptogramma stelleri (S.G. Gmel.) Prantl Native CRST2

  fragile rockbrake · Pteridaceae 6 counties
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  Cucurbita foetidissima Kunth Native CUFO

  Missouri gourd · Cucurbitaceae 16 counties
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  Cucurbita pepo L. Both CUPE

  field pumpkin · Cucurbitaceae 1 county
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  Cucurbita pepo L. var. pepo Introduced CUPEP

  field pumpkin · Cucurbitaceae 1 county
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  Cuscuta approximata Bab. Introduced CUAP2

  alfalfa dodder · Cuscutaceae 3 counties
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  Cuscuta californica Hook. & Arn. Native CUCA

  chaparral dodder · Cuscutaceae 1 county
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  Cuscuta californica Hook. & Arn. var. breviflora Engelm. Native CUCAB

  chaparral dodder · Cuscutaceae 1 county
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  Cuscuta cuspidata Engelm. Native CUCU2

  cusp dodder · Cuscutaceae 2 counties
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  Cuscuta denticulata Engelm. Native CUDE2

  desert dodder · Cuscutaceae 1 county
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  Cuscuta denticulata Engelm. var. denticulata Native CUDED

  desert dodder · Cuscutaceae 1 county
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  Cuscuta indecora Choisy Native CUIN

  bigseed alfalfa dodder · Cuscutaceae 17 counties
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  Cuscuta indecora Choisy var. neuropetala (Engelm.) Hitchc. Native CUINN

  bigseed dodder · Cuscutaceae 16 counties
• ⚘
  Cuscuta megalocarpa Rydb. Native CUME4

  bigfruit dodder · Cuscutaceae 1 county
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  Cuscuta pentagona Engelm. Native CUPE3

  fiveangled dodder · Cuscutaceae 3 counties
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  Cuscuta pentagona Engelm. var. pentagona Native CUPEP2

  fiveangled dodder · Cuscutaceae 2 counties
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  Cuscuta umbellata Kunth Native CUUM

  flatglobe dodder · Cuscutaceae 3 counties
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  Cyclachaena xanthiifolia (Nutt.) Fresen. Native CYXA2

  carelessweed · Asteraceae 24 counties
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  Cyclanthera naudiniana Cogn. Native CYNA5

  Naudin's cyclanthera · Cucurbitaceae 3 counties
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  Cycloloma atriplicifolium (Spreng.) J.M. Coult. Native CYAT

  winged pigweed · Chenopodiaceae 16 counties
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  Cylindropuntia imbricata (Haw.) F.M. Knuth Native CYIM2

  tree cholla · Cactaceae 6 counties
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  Cylindropuntia imbricata (Haw.) F.M. Knuth var. imbricata Native CYIMI

  tree cholla · Cactaceae 6 counties
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  Cylindropuntia whipplei (Engelm. & J.M. Bigelow) F.M. Knuth Native CYWH

  Whipple cholla · Cactaceae 4 counties
• ⚘
  Cylindropuntia ×viridiflora (Britton & Rose) F.M. Knuth (pro sp.) [imbricata × whipplei] Native CYVI16

  rat-tail cholla · Cactaceae 1 county
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  Cymopterus acaulis (Pursh) Raf. Native CYAC

  plains springparsley · Apiaceae 27 counties
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  Cymopterus acaulis (Pursh) Raf. var. acaulis Native CYACA

  plains springparsley · Apiaceae 1 county
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  Cymopterus acaulis (Pursh) Raf. var. fendleri (A. Gray) Goodrich Native CYACF

  Fendler's springparsley · Apiaceae 9 counties
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  Cymopterus bulbosus A. Nelson Native CYBU

  bulbous springparsley · Apiaceae 11 counties
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  Cymopterus duchesnensis M.E. Jones Native CYDU

  Uinta Basin springparsley · Apiaceae 2 counties
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  Cymopterus montanus Nutt. ex Torr. & A. Gray Native CYMO

  mountain springparsley · Apiaceae 17 counties
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  Cymopterus planosus (Osterh.) Mathias Native CYPL

  Rocky Mountain springparsley · Apiaceae 9 counties
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  Cymopterus purpurascens (A. Gray) M.E. Jones Native CYPU

  widewing springparsley · Apiaceae 3 counties
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  Cymopterus purpureus S. Watson Native CYPU2

  purple springparsley · Apiaceae 11 counties
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  Cynodon dactylon (L.) Pers. Introduced CYDA

  Bermudagrass · Poaceae 3 counties
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  Cynoglossum officinale L. Introduced CYOF

  gypsyflower · Boraginaceae 21 counties
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  Cyperus acuminatus Torr. & Hook. ex Torr. Native CYAC2

  tapertip flatsedge · Cyperaceae 4 counties
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  Cyperus bipartitus Torr. Native CYBI6

  slender flatsedge · Cyperaceae 6 counties
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  Cyperus erythrorhizos Muhl. Native CYER2

  redroot flatsedge · Cyperaceae 6 counties