Montana

• Beaverhead 30001
  755 taxa Open ↗
• Big Horn 30003
  565 taxa Open ↗
• Blaine 30005
  333 taxa Open ↗
• Broadwater 30007
  359 taxa Open ↗
• Carbon 30009
  749 taxa Open ↗
• Carter 30011
  454 taxa Open ↗
• Cascade 30013
  768 taxa Open ↗
• Chouteau 30015
  423 taxa Open ↗
• Custer 30017
  458 taxa Open ↗
• Daniels 30019
  384 taxa Open ↗

Showing 1,501–1,550 of 3,215.

• 
  Hordeum jubatum L. ssp. jubatum Native HOJUJ

  foxtail barley · Poaceae 3 counties
• 
  Hordeum marinum Huds. Introduced HOMA2

  seaside barley · Poaceae 2 counties
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  Hordeum marinum Huds. ssp. gussoneanum (Parl.) Thell. Introduced HOMAG

  Mediterranean barley · Poaceae 2 counties
• 
  Hordeum pusillum Nutt. Native HOPU

  little barley · Poaceae 3 counties
• 
  Hordeum vulgare L. Introduced HOVU

  common barley · Poaceae 7 counties
• 
  Horkelia fusca Lindl. Native HOFU

  pinewoods horkelia · Rosaceae 1 county
• 
  Horkelia fusca Lindl. ssp. parviflora (Nutt. ex Torr. & A. Gray) D.D. Keck Native HOFUP2

  smallflower horkelia · Rosaceae 1 county
• 
  Hulsea algida A. Gray Native HUAL

  Pacific hulsea · Asteraceae 4 counties
• 
  Humulus lupulus L. Both HULU

  common hop · Cannabaceae 14 counties
• 
  Humulus lupulus L. var. neomexicanus A. Nelson & Cockerell Native HULUN

  common hop · Cannabaceae 2 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. Native HYCA4

  ballhead waterleaf · Hydrophyllaceae 9 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. var. capitatum Native HYCAC

  ballhead waterleaf · Hydrophyllaceae 9 counties
• 
  Hymenopappus filifolius Hook. Native HYFI

  fineleaf hymenopappus · Asteraceae 28 counties
• 
  Hymenopappus filifolius Hook. var. polycephalus (Osterh.) B.L. Turner Native HYFIP3

  manyhead hymenopappus · Asteraceae 18 counties
• 
  Hymenopappus tenuifolius Pursh Native HYTE2

  Chalk Hill hymenopappus · Asteraceae 1 county
• 
  Hymenoxys hoopesii (A. Gray) Bierner Native HYHO

  owl's-claws · Asteraceae 1 county
• 
  Hymenoxys richardsonii (Hook.) Cockerell Native HYRI

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

  pingue rubberweed · Asteraceae 25 counties
• 
  Hyoscyamus niger L. Introduced HYNI

  black henbane · Solanaceae 42 counties
• 
  Hypericum perforatum L. Introduced HYPE

  common St. Johnswort · Clusiaceae 27 counties
• 
  Hypericum scouleri Hook. Native HYSC5

  Scouler's St. Johnswort · Clusiaceae 15 counties
• 
  Hypericum scouleri Hook. ssp. scouleri Native HYSCS2

  Scouler's St. Johnswort · Clusiaceae 1 county
• 
  Hypochaeris radicata L. Introduced HYRA3

  hairy cat's ear · Asteraceae 2 counties
• 
  Hyssopus officinalis L. Introduced HYOF

  hyssop · Lamiaceae 2 counties
• 
  Iliamna rivularis (Douglas ex Hook.) Greene Native ILRI

  streambank wild hollyhock · Malvaceae 14 counties
• 
  Impatiens aurella Rydb. Native IMAU

  paleyellow touch-me-not · Balsaminaceae 3 counties
• 
  Impatiens ecornuta Gerry Moore, Zika & Rushworth Native IMEC2

  spurless touch-me-not · Balsaminaceae 2 counties
• 
  Ionactis alpina (Nutt.) Greene Native IOAL

  Lava aster · Asteraceae 7 counties
• 
  Ionactis stenomeres (A. Gray) Greene Native IOST

  Rocky Mountain aster · Asteraceae 6 counties
• 
  Ipomoea leptophylla Torr. Native IPLE

  bush morning-glory · Convolvulaceae 4 counties
• 
  Ipomopsis aggregata (Pursh) V.E. Grant Native IPAG

  scarlet gilia · Polemoniaceae 10 counties
• 
  Ipomopsis aggregata (Pursh) V.E. Grant ssp. aggregata Native IPAGA3

  scarlet gilia · Polemoniaceae 10 counties
• 
  Ipomopsis aggregata (Pursh) V.E. Grant ssp. attenuata (A. Gray) V.E. Grant & A.D. Grant Native IPAGA2

  scarlet gilia · Polemoniaceae 1 county
• 
  Ipomopsis congesta (Hook.) V.E. Grant Native IPCO5

  ballhead ipomopsis · Polemoniaceae 9 counties
• 
  Ipomopsis congesta (Hook.) V.E. Grant ssp. congesta Native IPCOC3

  ballhead ipomopsis · Polemoniaceae 8 counties
• 
  Ipomopsis pumila (Nutt.) V.E. Grant Native IPPU4

  dwarf ipomopsis · Polemoniaceae 1 county
• 
  Ipomopsis spicata (Nutt.) V.E. Grant Native IPSP

  spiked ipomopsis · Polemoniaceae 11 counties
• 
  Ipomopsis spicata (Nutt.) V.E. Grant ssp. orchidacea (Brand) Wilken & R.L. Hartm. Native IPSPO2

  orchid ipomopsis · Polemoniaceae 2 counties
• 
  Ipomopsis spicata (Nutt.) V.E. Grant ssp. orchidacea (Brand) Wilken & R.L. Hartm. var. cephaloidea (Rydb.) Wilken & R.L. Hartm. Native IPSPC2

  orchid ipomopsis · Polemoniaceae 2 counties
• 
  Ipomopsis spicata (Nutt.) V.E. Grant ssp. orchidacea (Brand) Wilken & R.L. Hartm. var. orchidacea (Brand) Dorn Native IPSPO3

  orchid ipomopsis · Polemoniaceae 1 county
• 
  Ipomopsis spicata (Nutt.) V.E. Grant ssp. robruthii Wilken & R.L. Hartm. Native IPSPR3

  spiked ipomopsis · Polemoniaceae 1 county
• 
  Ipomopsis spicata (Nutt.) V.E. Grant ssp. spicata Native IPSPS

  spiked ipomopsis · Polemoniaceae 10 counties
• 
  Iris missouriensis Nutt. Native IRMI

  Rocky Mountain iris · Iridaceae 1 county
• 
  Iris pseudacorus L. Introduced IRPS

  paleyellow iris · Iridaceae 2 counties
• 
  Isatis tinctoria L. Introduced ISTI

  Dyer's woad · Brassicaceae 13 counties
• 
  Isoetes bolanderi Engelm. Native ISBO

  Bolander's quillwort · Isoetaceae 2 counties
• ⚘
  Isoetes ×herb-wagneri W.C. Taylor [bolanderi × echinospora] Native ISHE2

  quillwort · Isoetaceae 1 county
• 
  Iva axillaris Pursh Native IVAX

  povertyweed · Asteraceae 37 counties
• 
  Ivesia gordonii (Hook.) Torr. & A. Gray Native IVGO

  Gordon's ivesia · Rosaceae 9 counties
• ⚘
  Juncus albescens (Lange) Fernald Native JUAL2

  northern white rush · Juncaceae 2 counties