Oregon

• Baker 41001
  1,572 taxa Open ↗
• Benton 41003
  1,855 taxa Open ↗
• Clackamas 41005
  1,485 taxa Open ↗
• Clatsop 41007
  979 taxa Open ↗
• Columbia 41009
  1,183 taxa Open ↗
• Coos 41011
  1,238 taxa Open ↗
• Crook 41013
  1,354 taxa Open ↗
• Curry 41015
  1,738 taxa Open ↗
• Deschutes 41017
  1,482 taxa Open ↗
• Douglas 41019
  2,250 taxa Open ↗

Showing 2,551–2,600 of 5,518.

• 
  Hordeum jubatum L. Native HOJU

  foxtail barley · Poaceae 20 counties
• 
  Hordeum jubatum L. ssp. jubatum Native HOJUJ

  foxtail barley · Poaceae 20 counties
• 
  Hordeum marinum Huds. Introduced HOMA2

  seaside barley · Poaceae 22 counties
• 
  Hordeum marinum Huds. ssp. gussoneanum (Parl.) Thell. Introduced HOMAG

  Mediterranean barley · Poaceae 22 counties
• 
  Hordeum murinum L. Introduced HOMU

  mouse barley · Poaceae 25 counties
• 
  Hordeum murinum L. ssp. glaucum (Steud.) Tzvelev Introduced HOMUG

  smooth barley · Poaceae 4 counties
• 
  Hordeum murinum L. ssp. leporinum (Link) Arcang. Introduced HOMUL

  hare barley · Poaceae 19 counties
• 
  Hordeum murinum L. ssp. murinum Introduced HOMUM

  wall barley · Poaceae 3 counties
• 
  Hordeum pusillum Nutt. Native HOPU

  little barley · Poaceae 2 counties
• 
  Hordeum vulgare L. Introduced HOVU

  common barley · Poaceae 10 counties
• 
  Horkelia congesta Douglas ex Hook. Native HOCO

  Sierra horkelia · Rosaceae 9 counties
• 
  Horkelia congesta Douglas ex Hook. ssp. congesta Native HOCOC

  Sierra horkelia · Rosaceae 9 counties
• 
  Horkelia congesta Douglas ex Hook. ssp. nemorosa D.D. Keck Native HOCON

  Sierra horkelia · Rosaceae 3 counties
• 
  Horkelia daucifolia (Greene) Rydb. Native HODA

  carrotleaf horkelia · Rosaceae 3 counties
• 
  Horkelia daucifolia (Greene) Rydb. ssp. daucifolia Native HODAD

  carrotleaf horkelia · Rosaceae 3 counties
• 
  Horkelia fusca Lindl. Native HOFU

  pinewoods horkelia · Rosaceae 19 counties
• 
  Horkelia fusca Lindl. ssp. capitata (Lindl.) D.D. Keck Native HOFUC2

  bighead horkelia · Rosaceae 7 counties
• 
  Horkelia fusca Lindl. ssp. filicoides (Crum) D.D. Keck Native HOFUF

  pinewoods horkelia · Rosaceae 4 counties
• 
  Horkelia fusca Lindl. ssp. fusca Native HOFUF2

  pinewoods horkelia · Rosaceae 4 counties
• 
  Horkelia fusca Lindl. ssp. parviflora (Nutt. ex Torr. & A. Gray) D.D. Keck Native HOFUP2

  smallflower horkelia · Rosaceae 7 counties
• 
  Horkelia hendersonii Howell Native HOHE2

  Henderson's horkelia · Rosaceae 1 county
• 
  Horkelia sericata S. Watson Native HOSE

  silky horkelia · Rosaceae 5 counties
• 
  Horkelia tridentata Torr. Native HOTR

  threetooth horkelia · Rosaceae 2 counties
• 
  Horkelia tridentata Torr. ssp. tridentata Native HOTRT

  threetooth horkelia · Rosaceae 2 counties
• 
  Hornungia procumbens (L.) Hayek Native HOPR4

  prostrate hutchinsia · Brassicaceae 7 counties
• 
  Howellia aquatilis A. Gray Native HOAQ

  water howellia · Campanulaceae 4 counties
• 
  Hulsea algida A. Gray Native HUAL

  Pacific hulsea · Asteraceae 2 counties
• 
  Hulsea nana A. Gray Native HUNA

  dwarf alpinegold · Asteraceae 9 counties
• 
  Humulus lupulus L. Both HULU

  common hop · Cannabaceae 9 counties
• 
  Humulus lupulus L. var. neomexicanus A. Nelson & Cockerell Native HULUN

  common hop · Cannabaceae 9 counties
• 
  Huperzia occidentalis (Clute) Kartesz & Gandhi Native HUOC

  western clubmoss · Lycopodiaceae 7 counties
• 
  Hyacinthoides non-scripta (L.) Chouard ex Rothm. Introduced HYNO

  English bluebell · Liliaceae 1 county
• 
  Hydrocotyle ranunculoides L. f. Native HYRA

  floating marshpennywort · Apiaceae 4 counties
• 
  Hydrocotyle umbellata L. Native HYUM

  manyflower marshpennywort · Apiaceae 1 county
• 
  Hydrocotyle verticillata Thunb. Native HYVE2

  whorled marshpennywort · Apiaceae 4 counties
• 
  Hydrocotyle verticillata Thunb. var. verticillata Native HYVEV

  whorled marshpennywort · Apiaceae 4 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. Native HYCA4

  ballhead waterleaf · Hydrophyllaceae 23 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. var. alpinum S. Watson Native HYCAA

  alpine waterleaf · Hydrophyllaceae 17 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. var. capitatum Native HYCAC

  ballhead waterleaf · Hydrophyllaceae 12 counties
• 
  Hydrophyllum capitatum Douglas ex Benth. var. thompsonii (M. Peck) Constance Native HYCAT

  Thompson's waterleaf · Hydrophyllaceae 9 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller Native HYFE

  Fendler's waterleaf · Hydrophyllaceae 16 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller var. albifrons (A. Heller) J.F. Macbr. Native HYFEA

  white waterleaf · Hydrophyllaceae 16 counties
• 
  Hydrophyllum fendleri (A. Gray) A. Heller var. fendleri Native HYFEF

  Fendler's waterleaf · Hydrophyllaceae 2 counties
• 
  Hydrophyllum occidentale (S. Watson) A. Gray Native HYOC

  western waterleaf · Hydrophyllaceae 11 counties
• 
  Hydrophyllum tenuipes A. Heller Native HYTE

  Pacific waterleaf · Hydrophyllaceae 19 counties
• 
  Hymenopappus filifolius Hook. Native HYFI

  fineleaf hymenopappus · Asteraceae 11 counties
• 
  Hymenopappus filifolius Hook. var. filifolius Native HYFIF

  fineleaf hymenopappus · Asteraceae 11 counties
• 
  Hymenoxys cooperi (A. Gray) Cockerell Native HYCO2

  Cooper's rubberweed · Asteraceae 2 counties
• 
  Hymenoxys cooperi (A. Gray) Cockerell var. canescens (D.C. Eaton) K.F. Parker Native HYCOC

  Cooper's rubberweed · Asteraceae 2 counties
• 
  Hymenoxys hoopesii (A. Gray) Bierner Native HYHO

  owl's-claws · Asteraceae 4 counties