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 1,951–2,000 of 4,111.

• 
  Heterosperma pinnatum Cav. Native HEPI2

  wingpetal · Asteraceae 1 county
• 
  Heterotheca fulcrata (Greene) Shinners Native HEFU3

  rockyscree false goldenaster · Asteraceae 9 counties
• 
  Heterotheca pumila (Greene) Semple Native HEPU14

  alpine false goldenaster · Asteraceae 21 counties
• 
  Heterotheca subaxillaris (Lam.) Britton & Rusby Native HESU3

  camphorweed · Asteraceae 2 counties
• 
  Heterotheca villosa (Pursh) Shinners Native HEVI4

  hairy false goldenaster · Asteraceae 54 counties
• 
  Heterotheca villosa (Pursh) Shinners var. foliosa (Nutt.) V.L. Harms Native HEVIF

  hairy false goldenaster · Asteraceae 10 counties
• 
  Heterotheca villosa (Pursh) Shinners var. minor (Hook.) Semple Native HEVIM3

  hairy false goldenaster · Asteraceae 23 counties
• 
  Heterotheca villosa (Pursh) Shinners var. nana (A. Gray) Semple Native HEVIN

  hairy false goldenaster · Asteraceae 24 counties
• 
  Heterotheca villosa (Pursh) Shinners var. pedunculata (Greene) V.L. Harms ex Semple Native HEVIP

  hairy false goldenaster · Asteraceae 1 county
• 
  Heterotheca villosa (Pursh) Shinners var. scabra (Eastw.) Semple Native HEVIS

  hairy false goldenaster · Asteraceae 1 county
• 
  Heterotheca villosa (Pursh) Shinners var. villosa Native HEVIV

  hairy false goldenaster · Asteraceae 34 counties
• 
  Heuchera bracteata (Torr.) Ser. Native HEBR2

  bracted alumroot · Saxifragaceae 8 counties
• 
  Heuchera hallii A. Gray Native HEHA2

  Front Range alumroot · Saxifragaceae 6 counties
• 
  Heuchera parvifolia Nutt. ex Torr. & A. Gray Native HEPA11

  littleleaf alumroot · Saxifragaceae 35 counties
• 
  Heuchera parvifolia Nutt. ex Torr. & A. Gray var. parvifolia Native HEPAP6

  littleleaf alumroot · Saxifragaceae 4 counties
• 
  Heuchera richardsonii R. Br. Native HERI

  Richardson's alumroot · Saxifragaceae 2 counties
• 
  Heuchera rubescens Torr. Native HERU

  pink alumroot · Saxifragaceae 3 counties
• 
  Heuchera rubescens Torr. var. versicolor (Greene) M.G. Stewart Native HERUV

  pink alumroot · Saxifragaceae 1 county
• 
  Hibiscus trionum L. Introduced HITR

  flower of an hour · Malvaceae 8 counties
• 
  Hieracium albiflorum Hook. Native HIAL2

  white hawkweed · Asteraceae 10 counties
• 
  Hieracium aurantiacum L. Introduced HIAU

  orange hawkweed · Asteraceae 4 counties
• 
  Hieracium fendleri Sch. Bip. Native HIFE

  yellow hawkweed · Asteraceae 8 counties
• 
  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
• 
  Holcus lanatus L. Introduced HOLA

  common velvetgrass · Poaceae 2 counties
• 
  Holodiscus dumosus (Nutt. ex Hook.) A. Heller Native HODU

  rockspirea · Rosaceae 32 counties
• 
  Holosteum umbellatum L. Introduced HOUM

  jagged chickweed · Caryophyllaceae 3 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 murinum L. Introduced HOMU

  mouse barley · Poaceae 7 counties
• 
  Hordeum murinum L. ssp. glaucum (Steud.) Tzvelev Introduced HOMUG

  smooth barley · Poaceae 7 counties
• 
  Hordeum pusillum Nutt. Native HOPU

  little barley · Poaceae 21 counties
• 
  Hordeum vulgare L. Introduced HOVU

  common barley · Poaceae 4 counties
• 
  Hornungia procumbens (L.) Hayek Native HOPR4

  prostrate hutchinsia · Brassicaceae 2 counties
• 
  Humulus lupulus L. Both HULU

  common hop · Cannabaceae 25 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