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 51–100 of 5,518.

• ⚘
  Achnatherum ×bloomeri (Bol.) Barkworth [hymenoides × occidentale] Native ACBL

  Poaceae 3 counties
• 
  Achyrachaena mollis Schauer Native ACMO2

  blow wives · Asteraceae 3 counties
• 
  Aconitum columbianum Nutt. Native ACCO4

  Columbian monkshood · Ranunculaceae 22 counties
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  Aconitum columbianum Nutt. ssp. columbianum Native ACCOC3

  Columbian monkshood · Ranunculaceae 12 counties
• 
  Aconitum columbianum Nutt. ssp. viviparum (Greene) D.E. Brink Native ACCOV2

  Columbian monkshood · Ranunculaceae 11 counties
• 
  Acorus calamus L. Introduced ACCA4

  calamus · Acoraceae 3 counties
• 
  Acroptilon repens (L.) DC. Introduced ACRE3

  hardheads · Asteraceae 22 counties
• 
  Actaea elata (Nutt.) Prantl Native ACEL4

  tall bugbane · Ranunculaceae 13 counties
• 
  Actaea laciniata (S. Watson) J. Compton Native ACLA12

  Mt. Hood bugbane · Ranunculaceae 3 counties
• 
  Actaea rubra (Aiton) Willd. Native ACRU2

  red baneberry · Ranunculaceae 32 counties
• 
  Actaea rubra (Aiton) Willd. ssp. arguta (Nutt.) Hultén Native ACRUA8

  red baneberry · Ranunculaceae 32 counties
• 
  Adenocaulon bicolor Hook. Native ADBI

  American trailplant · Asteraceae 27 counties
• 
  Adiantum aleuticum (Rupr.) Paris Native ADAL

  Aleutian maidenhair · Pteridaceae 24 counties
• 
  Adiantum jordanii C.H. Mull. Native ADJO

  California maidenhair · Pteridaceae 4 counties
• 
  Adonis aestivalis L. Introduced ADAE

  summer pheasant's eye · Ranunculaceae 4 counties
• 
  Aegilops cylindrica Host Introduced AECY

  jointed goatgrass · Poaceae 7 counties
• 
  Aegilops neglecta Req. ex Bertol. Introduced AENE2

  three-awned goatgrass · Poaceae 1 county
• 
  Aegilops triuncialis L. Introduced AETR

  barbed goatgrass · Poaceae 1 county
• 
  Aegopodium podagraria L. Introduced AEPO

  bishop's goutweed · Apiaceae 8 counties
• 
  Aesculus californica (Spach) Nutt. Native AECA

  California buckeye · Hippocastanaceae 1 county
• 
  Aesculus hippocastanum L. Introduced AEHI

  horse chestnut · Hippocastanaceae 3 counties
• 
  Agastache cusickii (Greenm.) A. Heller Native AGCU

  Cusick's giant hyssop · Lamiaceae 1 county
• 
  Agastache occidentalis (Piper) A. Heller Native AGOC

  western giant hyssop · Lamiaceae 1 county
• 
  Agastache urticifolia (Benth.) Kuntze Native AGUR

  nettleleaf giant hyssop · Lamiaceae 19 counties
• 
  Agastache urticifolia (Benth.) Kuntze var. urticifolia Native AGURU

  nettleleaf giant hyssop · Lamiaceae 13 counties
• 
  Ageratina occidentalis (Hook.) R.M. King & H. Rob. Native AGOC2

  western snakeroot · Asteraceae 16 counties
• 
  Agoseris apargioides (Less.) Greene Native AGAP2

  woolly goat chicory · Asteraceae 7 counties
• 
  Agoseris apargioides (Less.) Greene var. maritima (Sheldon) Q. Jones ex Cronquist Native AGAPM

  woolly goat chicory · Asteraceae 7 counties
• 
  Agoseris aurantiaca (Hook.) Greene Native AGAU2

  orange agoseris · Asteraceae 22 counties
• 
  Agoseris aurantiaca (Hook.) Greene var. aurantiaca Native AGAUA

  orange agoseris · Asteraceae 22 counties
• 
  Agoseris elata (Nutt.) Greene Native AGEL

  tall agoseris · Asteraceae 7 counties
• 
  Agoseris glauca (Pursh) Raf. Native AGGL

  pale agoseris · Asteraceae 22 counties
• 
  Agoseris glauca (Pursh) Raf. var. agrestis (Osterh.) Q. Jones ex Cronquist Native AGGLA

  pale agoseris · Asteraceae 9 counties
• 
  Agoseris glauca (Pursh) Raf. var. dasycephala (Torr. & A. Gray) Jeps. Native AGGLD

  pale agoseris · Asteraceae 3 counties
• 
  Agoseris glauca (Pursh) Raf. var. glauca Native AGGLG

  pale agoseris · Asteraceae 13 counties
• 
  Agoseris glauca (Pursh) Raf. var. laciniata (D.C. Eaton) Smiley Native AGGLL

  false agoseris · Asteraceae 7 counties
• 
  Agoseris glauca (Pursh) Raf. var. monticola (Greene) Q. Jones ex Cronquist Native AGGLM

  pale agoseris · Asteraceae 7 counties
• 
  Agoseris grandiflora (Nutt.) Greene Native AGGR

  bigflower agoseris · Asteraceae 29 counties
• 
  Agoseris heterophylla (Nutt.) Greene Native AGHE2

  annual agoseris · Asteraceae 27 counties
• 
  Agoseris heterophylla (Nutt.) Greene var. heterophylla Native AGHEH

  annual agoseris · Asteraceae 23 counties
• 
  Agoseris retrorsa (Benth.) Greene Native AGRE

  spearleaf agoseris · Asteraceae 13 counties
• 
  Agrimonia gryposepala Wallr. Native AGGR2

  tall hairy agrimony · Rosaceae 2 counties
• 
  Agropyron cristatum (L.) Gaertn. Introduced AGCR

  crested wheatgrass · Poaceae 16 counties
• 
  Agropyron cristatum (L.) Gaertn. ssp. pectinatum (M. Bieb.) Tzvelev Introduced AGCRP8

  crested wheatgrass · Poaceae 16 counties
• 
  Agropyron desertorum (Fisch. ex Link) Schult. Introduced AGDE2

  desert wheatgrass · Poaceae 3 counties
• 
  Agrostemma githago L. Introduced AGGI

  common corncockle · Caryophyllaceae 14 counties
• 
  Agrostis aequivalvis (Trin.) Trin. Native AGAE

  arctic bentgrass · Poaceae 3 counties
• 
  Agrostis canina L. Native AGCA4

  velvet bentgrass · Poaceae 2 counties
• 
  Agrostis capillaris L. Introduced AGCA5

  colonial bentgrass · Poaceae 25 counties
• 
  Agrostis castellana Boiss. & Reuter Introduced AGCA11

  bentgrass · Poaceae 8 counties