Wasco County

Showing 1–50 of 1,534.

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  Abies amabilis (Douglas ex Loudon) Douglas ex Forbes Native ABAM

  Pacific silver fir · Pinaceae
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  Abies grandis (Douglas ex D. Don) Lindl. Native ABGR

  grand fir · Pinaceae
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  Abies procera Rehder Native ABPR

  noble fir · Pinaceae
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  Abronia mellifera Douglas ex Hook. Native ABME

  white sand verbena · Nyctaginaceae
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  Acer circinatum Pursh Native ACCI

  vine maple · Aceraceae
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  Acer glabrum Torr. Native ACGL

  Rocky Mountain maple · Aceraceae
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  Acer glabrum Torr. var. douglasii (Hook.) Dippel Native ACGLD4

  Douglas maple · Aceraceae
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  Acer macrophyllum Pursh Native ACMA3

  bigleaf maple · Aceraceae
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  Acer negundo L. Native ACNE2

  boxelder · Aceraceae
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  Acer negundo L. var. negundo Native ACNEN

  boxelder · Aceraceae
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  Achillea millefolium L. Both ACMI2

  common yarrow · Asteraceae
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  Achlys triphylla (Sm.) DC. Native ACTR

  sweet after death · Berberidaceae
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  Achnatherum hendersonii (Vasey) Barkworth Native ACHE10

  Henderson's needlegrass · Poaceae
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  Achnatherum hymenoides (Roem. & Schult.) Barkworth Native ACHY

  Indian ricegrass · Poaceae
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  Achnatherum lemmonii (Vasey) Barkworth Native ACLE8

  Lemmon's needlegrass · Poaceae
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  Achnatherum lemmonii (Vasey) Barkworth var. lemmonii Native ACLEL

  Lemmon's needlegrass · Poaceae
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  Achnatherum occidentale (Thurb.) Barkworth Native ACOC3

  western needlegrass · Poaceae
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  Achnatherum occidentale (Thurb.) Barkworth ssp. californicum (Merr. & Burtt Davy) Barkworth Native ACOCC

  California needlegrass · Poaceae
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  Achnatherum thurberianum (Piper) Barkworth Native ACTH7

  Thurber's needlegrass · Poaceae
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  Aconitum columbianum Nutt. Native ACCO4

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

  Columbian monkshood · Ranunculaceae
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  Acroptilon repens (L.) DC. Introduced ACRE3

  hardheads · Asteraceae
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  Actaea rubra (Aiton) Willd. Native ACRU2

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

  red baneberry · Ranunculaceae
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  Adenocaulon bicolor Hook. Native ADBI

  American trailplant · Asteraceae
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  Agoseris aurantiaca (Hook.) Greene Native AGAU2

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

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

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

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

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

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

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

  spearleaf agoseris · Asteraceae
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  Agropyron cristatum (L.) Gaertn. Introduced AGCR

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

  crested wheatgrass · Poaceae
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  Agrostemma githago L. Introduced AGGI

  common corncockle · Caryophyllaceae
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  Agrostis capillaris L. Introduced AGCA5

  colonial bentgrass · Poaceae
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  Agrostis exarata Trin. Native AGEX

  spike bentgrass · Poaceae
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  Agrostis idahoensis Nash Native AGID

  Idaho bentgrass · Poaceae
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  Agrostis scabra Willd. Native AGSC5

  rough bentgrass · Poaceae
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  Agrostis stolonifera L. Introduced AGST2

  creeping bentgrass · Poaceae
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  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae
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  Aira caryophyllea L. Introduced AICA

  silver hairgrass · Poaceae
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  Aira caryophyllea L. var. caryophyllea Introduced AICAC2

  silver hairgrass · Poaceae
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  Alisma gramineum Lej. Native ALGR

  narrowleaf water plantain · Alismataceae
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  Alisma triviale Pursh Native ALTR7

  northern water plantain · Alismataceae
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  Allium acuminatum Hook. Native ALAC4

  tapertip onion · Liliaceae
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  Allium amplectens Hook. Native ALAM2

  narrowleaf onion · Liliaceae
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  Allium campanulatum S. Watson Native ALCA2

  dusky onion · Liliaceae
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  Allium cernuum Roth Native ALCE2

  nodding onion · Liliaceae