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 2,001–2,050 of 4,111.

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  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
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  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
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  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
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  Hymenopappus flavescens A. Gray Native HYFL

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

  collegeflower · Asteraceae 1 county
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  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
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  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
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  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
• 
  Hyoscyamus niger L. Introduced HYNI

  black henbane · Solanaceae 8 counties
• 
  Hypericum majus (A. Gray) Britton Native HYMA2

  large St. Johnswort · Clusiaceae 2 counties
• 
  Hypericum perforatum L. Introduced HYPE

  common St. Johnswort · Clusiaceae 7 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
• 
  Hypochaeris radicata L. Introduced HYRA3

  hairy cat's ear · Asteraceae 1 county
• 
  Hypoxis hirsuta (L.) Coville Native HYHI2

  common goldstar · Liliaceae 2 counties
• 
  Hyssopus officinalis L. Introduced HYOF

  hyssop · Lamiaceae 1 county
• 
  Iberis amara L. Introduced IBAM

  annual candytuft · Brassicaceae 1 county
• ⚘
  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
• 
  Impatiens capensis Meerb. Native IMCA

  jewelweed · Balsaminaceae 5 counties
• 
  Ipomoea cardiophylla A. Gray Native IPCA3

  heartleaf morning-glory · Convolvulaceae 1 county
• 
  Ipomoea cristulata Hallier f. Native IPCR

  Trans-Pecos morning-glory · Convolvulaceae 1 county
• 
  Ipomoea leptophylla Torr. Native IPLE

  bush morning-glory · Convolvulaceae 20 counties
• 
  Ipomoea purpurea (L.) Roth Introduced IPPU2

  tall morning-glory · Convolvulaceae 2 counties
• 
  Ipomopsis aggregata (Pursh) V.E. Grant Native IPAG

  scarlet gilia · Polemoniaceae 44 counties
• 
  Ipomopsis aggregata (Pursh) V.E. Grant ssp. aggregata Native IPAGA3

  scarlet gilia · Polemoniaceae 18 counties
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  Ipomopsis aggregata (Pursh) V.E. Grant ssp. attenuata (A. Gray) V.E. Grant & A.D. Grant Native IPAGA2

  scarlet gilia · Polemoniaceae 7 counties
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  Ipomopsis aggregata (Pursh) V.E. Grant ssp. candida (Rydb.) V.E. Grant & A.D. Grant Native IPAGC

  scarlet gilia · Polemoniaceae 20 counties
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  Ipomopsis aggregata (Pursh) V.E. Grant ssp. collina (Greene) Wilken & Allred Native IPAGC2

  scarlet gilia · Polemoniaceae 19 counties
• 
  Ipomopsis aggregata (Pursh) V.E. Grant ssp. formosissima (Greene) Wherry Native IPAGF

  scarlet gilia · Polemoniaceae 1 county
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  Ipomopsis aggregata (Pursh) V.E. Grant ssp. weberi V.E. Grant & Wilken Native IPAGW

  scarlet gilia · Polemoniaceae 4 counties
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  Ipomopsis congesta (Hook.) V.E. Grant Native IPCO5

  ballhead ipomopsis · Polemoniaceae 14 counties
• 
  Ipomopsis congesta (Hook.) V.E. Grant ssp. congesta Native IPCOC3

  ballhead ipomopsis · Polemoniaceae 12 counties
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  Ipomopsis congesta (Hook.) V.E. Grant ssp. crebrifolia (Nutt.) Day Native IPCOC

  ballhead ipomopsis · Polemoniaceae 1 county
• 
  Ipomopsis congesta (Hook.) V.E. Grant ssp. frutescens (Rydb.) Day Native IPCOF

  ballhead ipomopsis · Polemoniaceae 1 county
• 
  Ipomopsis globularis (Brand) W.A. Weber Native IPGL

  Hoosier Pass ipomopsis · Polemoniaceae 3 counties