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 401–450 of 901 (introduced).

• 
  Herniaria hirsuta L. ssp. hirsuta Introduced HEHIH

  hairy rupturewort · Caryophyllaceae 1 county
• 
  Hesperis matronalis L. Introduced HEMA3

  dames rocket · Brassicaceae 9 counties
• 
  Hibiscus trionum L. Introduced HITR

  flower of an hour · Malvaceae 8 counties
• 
  Hieracium aurantiacum L. Introduced HIAU

  orange hawkweed · Asteraceae 6 counties
• 
  Hieracium caespitosum Dumort. Introduced HICA10

  meadow hawkweed · Asteraceae 1 county
• 
  Hieracium lachenalii C.C. Gmel. Introduced HILA8

  common hawkweed · Asteraceae 2 counties
• 
  Hieracium pilosella L. Introduced HIPI

  mouseear hawkweed · Asteraceae 3 counties
• 
  Hieracium pilosella L. var. pilosella Introduced HIPIP

  mouseear hawkweed · Asteraceae 3 counties
• 
  Hirschfeldia incana (L.) Lagr.-Foss. Introduced HIIN3

  shortpod mustard · Brassicaceae 2 counties
• 
  Holcus lanatus L. Introduced HOLA

  common velvetgrass · Poaceae 24 counties
• 
  Holcus mollis L. Introduced HOMO

  creeping velvetgrass · Poaceae 11 counties
• 
  Holosteum umbellatum L. Introduced HOUM

  jagged chickweed · Caryophyllaceae 23 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 vulgare L. Introduced HOVU

  common barley · Poaceae 10 counties
• 
  Hyacinthoides non-scripta (L.) Chouard ex Rothm. Introduced HYNO

  English bluebell · Liliaceae 1 county
• 
  Hyoscyamus niger L. Introduced HYNI

  black henbane · Solanaceae 10 counties
• 
  Hypericum androsaemum L. Introduced HYAN8

  sweet-amber · Clusiaceae 3 counties
• 
  Hypericum calycinum L. Introduced HYCA10

  Aaron's beard · Clusiaceae 1 county
• 
  Hypericum perforatum L. Introduced HYPE

  common St. Johnswort · Clusiaceae 33 counties
• 
  Hypochaeris glabra L. Introduced HYGL2

  smooth cat's ear · Asteraceae 10 counties
• 
  Hypochaeris radicata L. Introduced HYRA3

  hairy cat's ear · Asteraceae 21 counties
• 
  Ilex aquifolium L. Introduced ILAQ80

  English holly · Aquifoliaceae 18 counties
• 
  Impatiens balfourii Hook. f. Introduced IMBA2

  Balfour's touch-me-not · Balsaminaceae 2 counties
• 
  Impatiens glandulifera Royle Introduced IMGL

  ornamental jewelweed · Balsaminaceae 6 counties
• 
  Inula helenium L. Introduced INHE

  elecampane inula · Asteraceae 10 counties
• 
  Ipomoea purpurea (L.) Roth Introduced IPPU2

  tall morning-glory · Convolvulaceae 2 counties
• ⚘
  Iris germanica L. Introduced IRGE

  German iris · Iridaceae 2 counties
• 
  Iris pseudacorus L. Introduced IRPS

  paleyellow iris · Iridaceae 10 counties
• 
  Isatis tinctoria L. Introduced ISTI

  Dyer's woad · Brassicaceae 9 counties
• 
  Isolepis setacea (L.) R. Br. Introduced ISSE2

  bristleleaf bulrush · Cyperaceae 2 counties
• 
  Jasione montana L. Introduced JAMO

  sheepbit · Campanulaceae 1 county
• 
  Juncus bulbosus L. Introduced JUBU2

  bulbous rush · Juncaceae 1 county
• 
  Juncus compressus Jacq. Introduced JUCO

  roundfruit rush · Juncaceae 1 county
• 
  Juncus planifolius R. Br. Introduced JUPL

  broadleaf rush · Juncaceae 3 counties
• 
  Kickxia elatine (L.) Dumort. Introduced KIEL

  sharpleaf cancerwort · Scrophulariaceae 11 counties
• 
  Kickxia spuria (L.) Dumort. Introduced KISP

  roundleaf cancerwort · Scrophulariaceae 5 counties
• 
  Knautia arvensis (L.) J.M. Coult. Introduced KNAR

  field scabiosa · Dipsacaceae 2 counties
• 
  Lactuca saligna L. Introduced LASA

  willowleaf lettuce · Asteraceae 8 counties
• 
  Lactuca serriola L. Introduced LASE

  prickly lettuce · Asteraceae 30 counties
• 
  Lagurus ovatus L. Introduced LAOV

  harestail grass · Poaceae 6 counties
• 
  Lallemantia peltata (L.) Fisch. & C.A. Mey. Introduced LAPE3

  lion's heart · Lamiaceae 1 county
• 
  Lamium amplexicaule L. Introduced LAAM

  henbit deadnettle · Lamiaceae 23 counties
• 
  Lamium maculatum L. Introduced LAMA

  spotted henbit · Lamiaceae 2 counties
• 
  Lamium purpureum L. Introduced LAPU2

  purple deadnettle · Lamiaceae 18 counties
• 
  Lamium purpureum L. var. incisum (Willd.) Pers. Introduced LAPUI

  purple deadnettle · Lamiaceae 2 counties