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 3,601–3,643 of 3,643 (native).

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  Vitis acerifolia Raf. Native VIAC2

  mapleleaf grape · Vitaceae 4 counties
• 
  Vitis arizonica Engelm. Native VIAR2

  canyon grape · Vitaceae 1 county
• 
  Vitis riparia Michx. Native VIRI

  riverbank grape · Vitaceae 11 counties
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  Vulpia octoflora (Walter) Rydb. Native VUOC

  sixweeks fescue · Poaceae 30 counties
• 
  Vulpia octoflora (Walter) Rydb. var. octoflora Native VUOCO

  sixweeks fescue · Poaceae 15 counties
• 
  Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi Native WOBO

  northern watermeal · Lemnaceae 1 county
• 
  Wolffia columbiana Karst. Native WOCO

  Columbian watermeal · Lemnaceae 1 county
• 
  Woodsia neomexicana Windham Native WONE

  New Mexico cliff fern · Dryopteridaceae 6 counties
• 
  Woodsia oregana D.C. Eaton Native WOOR

  Oregon cliff fern · Dryopteridaceae 30 counties
• 
  Woodsia oregana D.C. Eaton ssp. cathcartiana (B.L. Rob.) Windham Native WOORC2

  Oregon cliff fern · Dryopteridaceae 30 counties
• 
  Woodsia plummerae Lemmon Native WOPL

  Plummer's cliff fern · Dryopteridaceae 3 counties
• 
  Woodsia scopulina D.C. Eaton Native WOSC

  Rocky Mountain woodsia · Dryopteridaceae 9 counties
• 
  Wyethia amplexicaulis (Nutt.) Nutt. Native WYAM

  mule-ears · Asteraceae 6 counties
• 
  Wyethia arizonica A. Gray Native WYAR

  Arizona mule-ears · Asteraceae 8 counties
• ⚘
  Wyethia ×magna A. Nelson (pro sp.) [amplexicaulis × arizonica] Native WYMA

  mule-ears · Asteraceae 6 counties
• 
  Xanthium strumarium L. Native XAST

  rough cocklebur · Asteraceae 21 counties
• 
  Xanthium strumarium L. var. canadense (Mill.) Torr. & A. Gray Native XASTC

  Canada cocklebur · Asteraceae 20 counties
• 
  Xanthium strumarium L. var. glabratum (DC.) Cronquist Native XASTG

  rough cocklebur · Asteraceae 1 county
• 
  Xylorhiza glabriuscula Nutt. Native XYGL

  smooth woodyaster · Asteraceae 1 county
• 
  Xylorhiza venusta (M.E. Jones) A. Heller Native XYVE

  charming woodyaster · Asteraceae 6 counties
• 
  Yucca angustissima Engelm. ex Trel. Native YUAN2

  narrowleaf yucca · Agavaceae 1 county
• 
  Yucca angustissima Engelm. ex Trel. var. angustissima Native YUANA2

  narrowleaf yucca · Agavaceae 1 county
• 
  Yucca baccata Torr. Native YUBA

  banana yucca · Agavaceae 7 counties
• 
  Yucca baileyi Wooton & Standl. Native YUBA2

  Navajo yucca · Agavaceae 1 county
• 
  Yucca baileyi Wooton & Standl. var. baileyi Native YUBAB3

  Navajo yucca · Agavaceae 1 county
• 
  Yucca baileyi Wooton & Standl. var. navajoa (J.M. Webber) J.M. Webber Native YUBAN

  Navajo yucca · Agavaceae 1 county
• 
  Yucca glauca Nutt. Native YUGL

  soapweed yucca · Agavaceae 28 counties
• 
  Yucca harrimaniae Trel. Native YUHA

  Spanish bayonet · Agavaceae 10 counties
• 
  Yucca harrimaniae Trel. var. neomexicana (Wooton & Standl.) Reveal Native YUHAN

  New Mexico Spanish bayonet · Agavaceae 1 county
• 
  Zannichellia palustris L. Native ZAPA

  horned pondweed · Zannichelliaceae 16 counties
• 
  Zigadenus elegans Pursh Native ZIEL2

  mountain deathcamas · Liliaceae 33 counties
• 
  Zigadenus elegans Pursh ssp. elegans Native ZIELE

  mountain deathcamas · Liliaceae 33 counties
• 
  Zigadenus paniculatus (Nutt.) S. Watson Native ZIPA2

  foothill deathcamas · Liliaceae 8 counties
• ⚘
  Zigadenus vaginatus (Rydb.) J.F. Macbr. Native ZIVA

  sheathed deathcamas · Liliaceae 1 county
• 
  Zigadenus venenosus S. Watson Native ZIVE

  meadow deathcamas · Liliaceae 20 counties
• 
  Zigadenus venenosus S. Watson var. gramineus (Rydb.) Walsh ex M. Peck Native ZIVEG

  grassy deathcamas · Liliaceae 20 counties
• 
  Zigadenus virescens (Kunth) J.F. Macbr. Native ZIVI

  green deathcamas · Liliaceae 6 counties
• 
  Zinnia grandiflora Nutt. Native ZIGR

  Rocky Mountain zinnia · Asteraceae 13 counties
• 
  Zizia aptera (A. Gray) Fernald Native ZIAP

  meadow zizia · Apiaceae 4 counties
• 
  Zuckia brandegeei (A. Gray) S.L. Welsh & Stutz ex S.L. Welsh Native ZUBR

  siltbush · Chenopodiaceae 5 counties
• 
  Zuckia brandegeei (A. Gray) S.L. Welsh & Stutz ex S.L. Welsh var. plummeri (Stutz & S.C. Sand.) Dorn Native ZUBRP

  Plummer's siltbush · Chenopodiaceae 1 county
• ⚘
  ×Elyhordeum macounii (Vasey) Barkworth & D.R. Dewey [Elymus trachycaulus × Hordeum jubatum] Native ELMA8

  Macoun's barley · Poaceae 4 counties
• ⚘
  ×Pseudelymus saxicola (Scribn. & J.G. Sm.) Barkworth & D.R. Dewey [Elymus elymoides × Pseudoroegneria spicata] Native PSSA2

  foxtail wheatgrass · Poaceae 1 county