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 101–150 of 5,518.

• 
  Agrostis densiflora Vasey Native AGDE7

  California bentgrass · Poaceae 2 counties
• 
  Agrostis exarata Trin. Native AGEX

  spike bentgrass · Poaceae 32 counties
• 
  Agrostis gigantea Roth Introduced AGGI2

  redtop · Poaceae 16 counties
• 
  Agrostis hallii Vasey Native AGHA2

  Hall's bentgrass · Poaceae 11 counties
• ⚘
  Agrostis hendersonii Hitchc. Native AGHE3

  Henderson's bentgrass · Poaceae 1 county
• 
  Agrostis howellii Scribn. Native AGHO2

  Howell's bentgrass · Poaceae 3 counties
• 
  Agrostis humilis Vasey Native AGHU

  alpine bentgrass · Poaceae 15 counties
• 
  Agrostis idahoensis Nash Native AGID

  Idaho bentgrass · Poaceae 13 counties
• 
  Agrostis microphylla Steud. Native AGMI3

  small-leaf bentgrass · Poaceae 11 counties
• 
  Agrostis oregonensis Vasey Native AGOR

  Oregon bentgrass · Poaceae 15 counties
• 
  Agrostis pallens Trin. Native AGPA8

  seashore bentgrass · Poaceae 22 counties
• 
  Agrostis perennans (Walter) Tuck. Native AGPE

  upland bentgrass · Poaceae 1 county
• 
  Agrostis scabra Willd. Native AGSC5

  rough bentgrass · Poaceae 26 counties
• 
  Agrostis stolonifera L. Introduced AGST2

  creeping bentgrass · Poaceae 33 counties
• 
  Agrostis variabilis Rydb. Native AGVA

  mountain bentgrass · Poaceae 12 counties
• 
  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae 14 counties
• 
  Aira caryophyllea L. Introduced AICA

  silver hairgrass · Poaceae 20 counties
• 
  Aira caryophyllea L. var. caryophyllea Introduced AICAC2

  silver hairgrass · Poaceae 20 counties
• 
  Aira elegans Willd. ex Kunth Introduced AIEL4

  annual silver hairgrass · Poaceae 11 counties
• 
  Aira praecox L. Introduced AIPR

  yellow hairgrass · Poaceae 10 counties
• 
  Ajuga reptans L. Introduced AJRE

  common bugle · Lamiaceae 3 counties
• 
  Alcea rosea L. Introduced ALRO3

  hollyhock · Malvaceae 2 counties
• 
  Alhagi maurorum Medik. Introduced ALMA12

  camelthorn · Fabaceae 1 county
• 
  Aliciella leptomeria (A. Gray) J.M. Porter Native ALLE7

  sand gilia · Polemoniaceae 8 counties
• 
  Aliciella lottiae (Day) J.M. Porter Native ALLO6

  Lott's gilia · Polemoniaceae 3 counties
• 
  Aliciella micromeria (A. Gray) J.M. Porter Native ALMI10

  dainty gilia · Polemoniaceae 5 counties
• 
  Aliciella triodon (Eastw.) Brand Native ALTR14

  coyote gilia · Polemoniaceae 1 county
• 
  Alisma gramineum Lej. Native ALGR

  narrowleaf water plantain · Alismataceae 7 counties
• 
  Alisma lanceolatum With. Introduced ALLA2

  lanceleaf water plantain · Alismataceae 6 counties
• 
  Alisma triviale Pursh Native ALTR7

  northern water plantain · Alismataceae 22 counties
• 
  Allenrolfea occidentalis (S. Watson) Kuntze Native ALOC2

  iodinebush · Chenopodiaceae 2 counties
• 
  Alliaria petiolata (M. Bieb.) Cavara & Grande Introduced ALPE4

  garlic mustard · Brassicaceae 3 counties
• 
  Allium aaseae Ownbey Native ALAA

  South Idaho onion · Liliaceae 1 county
• 
  Allium acuminatum Hook. Native ALAC4

  tapertip onion · Liliaceae 29 counties
• 
  Allium amplectens Hook. Native ALAM2

  narrowleaf onion · Liliaceae 18 counties
• 
  Allium anceps Kellogg Native ALAN

  twinleaf onion · Liliaceae 7 counties
• 
  Allium bisceptrum S. Watson Native ALBI2

  twincrest onion · Liliaceae 4 counties
• 
  Allium bisceptrum S. Watson var. bisceptrum Native ALBIB

  twincrest onion · Liliaceae 4 counties
• 
  Allium bolanderi S. Watson Native ALBO

  Bolander's onion · Liliaceae 4 counties
• 
  Allium bolanderi S. Watson var. bolanderi Native ALBOB

  Bolander's onion · Liliaceae 3 counties
• 
  Allium bolanderi S. Watson var. mirabile (L.F. Hend.) McNeal Native ALBOM

  Bolander's onion · Liliaceae 4 counties
• 
  Allium brandegeei S. Watson Native ALBR

  Brandegee's onion · Liliaceae 6 counties
• 
  Allium campanulatum S. Watson Native ALCA2

  dusky onion · Liliaceae 18 counties
• 
  Allium cernuum Roth Native ALCE2

  nodding onion · Liliaceae 9 counties
• 
  Allium cernuum Roth var. cernuum Native ALCEC2

  nodding onion · Liliaceae 9 counties
• 
  Allium crenulatum Wiegand Native ALCR4

  Olympic onion · Liliaceae 13 counties
• ⚘
  Allium dictuon H. St. John Native ALDI3

  Blue Mountain onion · Liliaceae 3 counties
• 
  Allium douglasii Hook. Native ALDO

  Douglas' onion · Liliaceae 9 counties
• 
  Allium falcifolium Hook. & Arn. Native ALFA3

  scytheleaf onion · Liliaceae 4 counties
• 
  Allium fibrillum M.E. Jones Native ALFI

  Cuddy Mountain onion · Liliaceae 9 counties