Index / States / Oregon / Washington
§1County listing — Oregon
Washington County
Oregon
- FIPS
- 41067
- Taxa recorded
- 1,527
- State
- Oregon
Filter
Showing 101–150 of 1,527.
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Anthemis cotula L. Introduced ANCO2stinking chamomile · Asteraceae -
Anthoxanthum odoratum L. Introduced ANODsweet vernalgrass · Poaceae - Anthoxanthum odoratum L. ssp. odoratum Introduced ANODO2sweet vernalgrass · Poaceae
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Anthriscus caucalis M. Bieb. Introduced ANCA14bur chervil · Apiaceae -
Anthriscus sylvestris (L.) Hoffm. Introduced ANSYwild chervil · Apiaceae -
Aphanes arvensis L. Introduced APAR2field parsley piert · Rosaceae -
Apocynum androsaemifolium L. Native APAN2spreading dogbane · Apocynaceae -
Apocynum cannabinum L. Native APCAIndianhemp · Apocynaceae -
Aquilegia formosa Fisch. ex DC. Native AQFOwestern columbine · Ranunculaceae -
Arabis cusickii S. Watson Native ARCUCusick's rockcress · Brassicaceae -
Arabis holboellii Hornem. Native ARHO2Holboell's rockcress · Brassicaceae - Arabis holboellii Hornem. var. retrofracta (Graham) Rydb. Native ARHORsecond rockcress · Brassicaceae
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Arabis microphylla Nutt. Native ARMIlittleleaf rockcress · Brassicaceae -
Arabis puberula Nutt. Native ARPUsilver rockcress · Brassicaceae -
Arabis sparsiflora Nutt. Native ARSPsicklepod rockcress · Brassicaceae - Arabis sparsiflora Nutt. var. subvillosa (S. Watson) Rollins Native ARSPShairystem rockcress · Brassicaceae
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Arabis suffrutescens S. Watson Native ARSU2woody rockcress · Brassicaceae - Arabis suffrutescens S. Watson var. suffrutescens Native ARSUSwoody rockcress · Brassicaceae
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Arabis ×divaricarpa A. Nelson (pro sp.) [drummondii × holboellii] Native ARDI2spreadingpod rockcress · Brassicaceae -
Arbutus menziesii Pursh Native ARMEPacific madrone · Ericaceae -
Arceuthobium douglasii Engelm. Native ARDODouglas-fir dwarf mistletoe · Viscaceae -
Arctium minus Bernh. Introduced ARMI2lesser burdock · Asteraceae -
Arctostaphylos columbiana Piper Native ARCO3hairy manzanita · Ericaceae -
Arenaria aculeata S. Watson Native ARAC2prickly sandwort · Caryophyllaceae -
Arenaria congesta Nutt. Native ARCO5ballhead sandwort · Caryophyllaceae - Arenaria congesta Nutt. var. glandulifera Maguire Native ARCOGgland sandwort · Caryophyllaceae
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Arnica cordifolia Hook. Native ARCO9heartleaf arnica · Asteraceae -
Arnica latifolia Bong. Native ARLA8broadleaf arnica · Asteraceae -
Arnica sororia Greene Native ARSO2twin arnica · Asteraceae -
Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl Introduced AREL3tall oatgrass · Poaceae - Arrhenatherum elatius (L.) P. Beauv. ex J. Presl & C. Presl var. bulbosum (Willd.) Spenner Introduced ARELBtall oatgrass · Poaceae
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Artemisia absinthium L. Introduced ARAB3absinthium · Asteraceae -
Artemisia arbuscula Nutt. Native ARAR8little sagebrush · Asteraceae - Artemisia arbuscula Nutt. ssp. arbuscula Native ARARAlittle sagebrush · Asteraceae
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Artemisia douglasiana Besser Native ARDO3Douglas' sagewort · Asteraceae -
Artemisia dracunculus L. Native ARDR4tarragon · Asteraceae -
Artemisia ludoviciana Nutt. Both ARLUwhite sagebrush · Asteraceae - Artemisia ludoviciana Nutt. ssp. candicans (Rydb.) D.D. Keck Native ARLUC8white sagebrush · Asteraceae
- Artemisia ludoviciana Nutt. ssp. incompta (Nutt.) D.D. Keck Native ARLUI2white sagebrush · Asteraceae
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Artemisia rigida (Nutt.) A. Gray Native ARRI2scabland sagebrush · Asteraceae -
Artemisia tridentata Nutt. Native ARTR2big sagebrush · Asteraceae - Artemisia tridentata Nutt. ssp. tridentata Native ARTRTbasin big sagebrush · Asteraceae
- Artemisia tridentata Nutt. ssp. vaseyana (Rydb.) Beetle Native ARTRVmountain big sagebrush · Asteraceae
- Artemisia tridentata Nutt. ssp. xericensis Winward ex R. Rosentreter & R. Kelsey Native ARTRXbig sagebrush · Asteraceae
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Arum italicum Mill. Introduced ARITItalian lords and ladies · Araceae -
Aruncus dioicus (Walter) Fernald Both ARDI8bride's feathers · Rosaceae - Aruncus dioicus (Walter) Fernald var. acuminatus (Rydb.) Rydb. ex H. Hara Native ARDIAbride's feathers · Rosaceae
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Asarum caudatum Lindl. Native ASCA2British Columbia wildginger · Aristolochiaceae -
Asclepias cryptoceras S. Watson Native ASCRpallid milkweed · Asclepiadaceae - Asclepias cryptoceras S. Watson ssp. davisii (Woodson) Woodson Native ASCRD2Davis' milkweed · Asclepiadaceae