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 1,751–1,800 of 3,643 (native).

• 
  Hieracium fendleri Sch. Bip. var. fendleri Native HIFEF

  yellow hawkweed · Asteraceae 8 counties
• 
  Hieracium gracile Hook. Native HIGR

  slender hawkweed · Asteraceae 22 counties
• 
  Hieracium gracile Hook. var. gracile Native HIGRG

  slender hawkweed · Asteraceae 22 counties
• 
  Hierochloe hirta (Schrank) Borbás Native HIHI

  northern sweetgrass · Poaceae 21 counties
• 
  Hierochloe hirta (Schrank) Borbás ssp. arctica (J. Presl) G. Weim. Native HIHIA

  northern sweetgrass · Poaceae 21 counties
• 
  Hippuris vulgaris L. Native HIVU2

  common mare's-tail · Hippuridaceae 12 counties
• 
  Hoffmannseggia drepanocarpa A. Gray Native HODR

  sicklepod holdback · Fabaceae 5 counties
• 
  Hoffmannseggia glauca (Ortega) Eifert Native HOGL2

  Indian rushpea · Fabaceae 6 counties
• 
  Holodiscus dumosus (Nutt. ex Hook.) A. Heller Native HODU

  rockspirea · Rosaceae 32 counties
• 
  Hordeum brachyantherum Nevski Native HOBR2

  meadow barley · Poaceae 19 counties
• 
  Hordeum brachyantherum Nevski ssp. brachyantherum Native HOBRB2

  meadow barley · Poaceae 18 counties
• 
  Hordeum jubatum L. Native HOJU

  foxtail barley · Poaceae 42 counties
• 
  Hordeum jubatum L. ssp. intermedium Bowden Native HOJUI

  intermediate barley · Poaceae 2 counties
• 
  Hordeum jubatum L. ssp. jubatum Native HOJUJ

  foxtail barley · Poaceae 35 counties
• 
  Hordeum pusillum Nutt. Native HOPU

  little barley · Poaceae 21 counties
• 
  Hornungia procumbens (L.) Hayek Native HOPR4

  prostrate hutchinsia · Brassicaceae 2 counties
• 
  Humulus lupulus L. var. neomexicanus A. Nelson & Cockerell Native HULUN

  common hop · Cannabaceae 22 counties
• 
  Huperzia haleakalae (Brack.) Holub Native HUHA

  Pacific clubmoss · Lycopodiaceae 8 counties
• 
  Hybanthus verticillatus (Ortega) Baill. Native HYVE

  babyslippers · Violaceae 8 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. Native HYCA4

  ballhead waterleaf · Hydrophyllaceae 7 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. var. capitatum Native HYCAC

  ballhead waterleaf · Hydrophyllaceae 7 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller Native HYFE

  Fendler's waterleaf · Hydrophyllaceae 24 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller var. fendleri Native HYFEF

  Fendler's waterleaf · Hydrophyllaceae 24 counties
• 
  Hymenopappus filifolius Hook. Native HYFI

  fineleaf hymenopappus · Asteraceae 38 counties
• 
  Hymenopappus filifolius Hook. var. cinereus (Rydb.) I.M. Johnst. Native HYFIC

  fineleaf hymenopappus · Asteraceae 27 counties
• 
  Hymenopappus filifolius Hook. var. lugens (Greene) Jeps. Native HYFIL

  fineleaf hymenopappus · Asteraceae 1 county
• 
  Hymenopappus filifolius Hook. var. luteus (Nutt.) B.L. Turner Native HYFIL2

  fineleaf hymenopappus · Asteraceae 4 counties
• 
  Hymenopappus filifolius Hook. var. megacephalus B.L. Turner Native HYFIM

  fineleaf hymenopappus · Asteraceae 7 counties
• 
  Hymenopappus filifolius Hook. var. parvulus (Greene) B.L. Turner Native HYFIP2

  fineleaf hymenopappus · Asteraceae 8 counties
• 
  Hymenopappus filifolius Hook. var. pauciflorus (I.M. Johnst.) B.L. Turner Native HYFIP

  fineleaf hymenopappus · Asteraceae 1 county
• 
  Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B.L. Turner Native HYFIP3

  manyhead hymenopappus · Asteraceae 13 counties
• 
  Hymenopappus flavescens A. Gray Native HYFL

  collegeflower · Asteraceae 4 counties
• 
  Hymenopappus flavescens A. Gray var. canotomentosus Native HYFLC

  collegeflower · Asteraceae 1 county
• 
  Hymenopappus flavescens A. Gray var. flavescens Native HYFLF

  collegeflower · Asteraceae 3 counties
• 
  Hymenopappus newberryi (A. Gray) I.M. Johnst. Native HYNE

  Newberry's hymenopappus · Asteraceae 5 counties
• 
  Hymenopappus tenuifolius Pursh Native HYTE2

  Chalk Hill hymenopappus · Asteraceae 15 counties
• 
  Hymenothrix wrightii A. Gray Native HYWR

  Wright's thimblehead · Asteraceae 1 county
• ⚘
  Hymenoxys helenioides (Rydb.) Cockerell Native HYHE

  Intermountain rubberweed · Asteraceae 4 counties
• 
  Hymenoxys hoopesii (A. Gray) Bierner Native HYHO

  owl's-claws · Asteraceae 22 counties
• 
  Hymenoxys odorata DC. Native HYOD

  bitter rubberweed · Asteraceae 7 counties
• 
  Hymenoxys richardsonii (Hook.) Cockerell Native HYRI

  pingue rubberweed · Asteraceae 25 counties
• 
  Hymenoxys richardsonii (Hook.) Cockerell var. richardsonii Native HYRIR

  pingue rubberweed · Asteraceae 22 counties
• 
  Hypericum majus (A. Gray) Britton Native HYMA2

  large St. Johnswort · Clusiaceae 2 counties
• 
  Hypericum scouleri Hook. Native HYSC5

  Scouler's St. Johnswort · Clusiaceae 18 counties
• 
  Hypericum scouleri Hook. ssp. nortoniae (M.E. Jones) J.M. Gillett Native HYSCN

  Norton's St. Johnswort · Clusiaceae 18 counties
• 
  Hypoxis hirsuta (L.) Coville Native HYHI2

  common goldstar · Liliaceae 2 counties
• ⚘
  Iliamna crandallii (Rydb.) Wiggins Native ILCR

  Crandall's wild hollyhock · Malvaceae 1 county
• 
  Iliamna grandiflora (Rydb.) Wiggins Native ILGR

  largeflower wild hollyhock · Malvaceae 3 counties
• 
  Iliamna rivularis (Douglas ex Hook.) Greene Native ILRI

  streambank wild hollyhock · Malvaceae 4 counties
• 
  Iliamna rivularis (Douglas ex Hook.) Greene var. rivularis Native ILRIR

  streambank wild hollyhock · Malvaceae 4 counties