Index / States / Oregon / Washington
§1County listing — Oregon
Washington County
Oregon
- FIPS
- 41067
- Taxa recorded
- 1,527
- State
- Oregon
Filter
Showing 1–50 of 1,527.
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Abies amabilis (Douglas ex Loudon) Douglas ex Forbes Native ABAMPacific silver fir · Pinaceae -
Abies concolor (Gord. & Glend.) Lindl. ex Hildebr. Native ABCOwhite fir · Pinaceae - Abies grandis (Douglas ex D. Don) Lindl. Native ABGRgrand fir · Pinaceae
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Abies procera Rehder Native ABPRnoble fir · Pinaceae -
Abronia mellifera Douglas ex Hook. Native ABMEwhite sand verbena · Nyctaginaceae -
Abutilon theophrasti Medik. Introduced ABTHvelvetleaf · Malvaceae -
Acer circinatum Pursh Native ACCIvine maple · Aceraceae -
Acer glabrum Torr. Native ACGLRocky Mountain maple · Aceraceae - Acer glabrum Torr. var. douglasii (Hook.) Dippel Native ACGLD4Douglas maple · Aceraceae
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Acer macrophyllum Pursh Native ACMA3bigleaf maple · Aceraceae -
Acer negundo L. Native ACNE2boxelder · Aceraceae -
Achillea millefolium L. Both ACMI2common yarrow · Asteraceae - Achillea millefolium L. var. occidentalis DC. Native ACMIOwestern yarrow · Asteraceae
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Achlys triphylla (Sm.) DC. Native ACTRsweet after death · Berberidaceae -
Achnatherum hymenoides (Roem. & Schult.) Barkworth Native ACHYIndian ricegrass · Poaceae -
Achnatherum nelsonii (Scribn.) Barkworth Native ACNE9Columbia needlegrass · Poaceae - Achnatherum nelsonii (Scribn.) Barkworth ssp. nelsonii Native ACNEN2Columbia needlegrass · Poaceae
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Achnatherum thurberianum (Piper) Barkworth Native ACTH7Thurber's needlegrass · Poaceae -
Acroptilon repens (L.) DC. Introduced ACRE3hardheads · Asteraceae -
Actaea elata (Nutt.) Prantl Native ACEL4tall bugbane · Ranunculaceae -
Actaea rubra (Aiton) Willd. Native ACRU2red baneberry · Ranunculaceae - Actaea rubra (Aiton) Willd. ssp. arguta (Nutt.) Hultén Native ACRUA8red baneberry · Ranunculaceae
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Adenocaulon bicolor Hook. Native ADBIAmerican trailplant · Asteraceae -
Adiantum aleuticum (Rupr.) Paris Native ADALAleutian maidenhair · Pteridaceae -
Aegilops cylindrica Host Introduced AECYjointed goatgrass · Poaceae -
Agoseris glauca (Pursh) Raf. Native AGGLpale agoseris · Asteraceae - Agoseris glauca (Pursh) Raf. var. glauca Native AGGLGpale agoseris · Asteraceae
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Agoseris grandiflora (Nutt.) Greene Native AGGRbigflower agoseris · Asteraceae -
Agoseris heterophylla (Nutt.) Greene Native AGHE2annual agoseris · Asteraceae - Agoseris heterophylla (Nutt.) Greene var. heterophylla Native AGHEHannual agoseris · Asteraceae
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Agoseris retrorsa (Benth.) Greene Native AGREspearleaf agoseris · Asteraceae -
Agrostis capillaris L. Introduced AGCA5colonial bentgrass · Poaceae -
Agrostis exarata Trin. Native AGEXspike bentgrass · Poaceae -
Agrostis microphylla Steud. Native AGMI3small-leaf bentgrass · Poaceae -
Agrostis oregonensis Vasey Native AGOROregon bentgrass · Poaceae -
Agrostis stolonifera L. Introduced AGST2creeping bentgrass · Poaceae -
Aira caryophyllea L. Introduced AICAsilver hairgrass · Poaceae - Aira caryophyllea L. var. caryophyllea Introduced AICAC2silver hairgrass · Poaceae
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Aliciella leptomeria (A. Gray) J.M. Porter Native ALLE7sand gilia · Polemoniaceae -
Alisma triviale Pursh Native ALTR7northern water plantain · Alismataceae -
Allium aaseae Ownbey Native ALAASouth Idaho onion · Liliaceae -
Allium acuminatum Hook. Native ALAC4tapertip onion · Liliaceae -
Allium brandegeei S. Watson Native ALBRBrandegee's onion · Liliaceae -
Allium fibrillum M.E. Jones Native ALFICuddy Mountain onion · Liliaceae -
Allium geyeri S. Watson Native ALGEGeyer's onion · Liliaceae -
Allium madidum S. Watson Native ALMA6swamp onion · Liliaceae -
Allium nevadense S. Watson Native ALNENevada onion · Liliaceae -
Allium nigrum L. Introduced ALNIblack garlic · Liliaceae -
Allium parvum Kellogg Native ALPA3small onion · Liliaceae -
Allium tolmiei (Hook.) Baker ex S. Watson Native ALTOTolmie's onion · Liliaceae