Flora of Eastern Washington and Adjacent Idaho
Eastern Washington University
Binomial Name Fallopia japonica (Houtt.) Ronse Decr. Family Polygonaceae Common Names Japanese knotweed Eastern Washington Asian Conservation Status Notes Very aggressive weed; especially in riparian areas Click on any image to enlarge it.
Binomial Name Persicaria hydropiper (L.) Spach Family Polygonaceae Common Names smartweed, mild water-pepper Eastern Washington Introduced Conservation Status Notes Click on any image to enlarge it.
Scientific Name Polygonum polygaloides Wallich ex Meisn. ssp. confertiflorum (Nutt. ex Piper) J.C. Hickman Family Polygonaceae Common Names close-flowered knotweed Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.
Scientific Name Eriogonum strictum Benth. var. proliferum (Torr. & A. Gray) C.L. Hitchc. Family Polygonaceae Common Names strict buckwheat Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.
Scientific Name Eriogonum strictum Benth. var. anserinum (Greene) S. Stokes Family Polygonaceae Common Names Goose Lake wild buckwheat Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.
Binomial Name Eriogonum compositum Douglas ex Benth. var. compositum Family Polygonaceae Common Names northern buckwheat Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.
Binomial Name Rumex salicifolius Weinm. var. triangulivalvis (Danser) J.C. Hickman Family Polygonaceae Common Names triangular-valved, white or white willow dock Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.
Scientific Name Eriogonum compositum Dougl. ex Benth. var. leianthum Hook. Family Polygonaceae Common Names northern buckwheat Eastern Washington Native Synonyms None Conservation Status Notes Click on any image to enlarge it.
Scientific Name Rumex stenophyllus Ledebour Family Polygonaceae Common Names narrow-leaved or narrowleaf dock Eastern Washington Europe Conservation Status Notes Click on any image to enlarge it.
Scientific Name Polygonum polygaloides Wallich ex Meisn. ssp. polygaloides Family Polygonaceae Common Names Polygala knotweed Eastern Washington Native Conservation Status Notes Click on any image to enlarge it.
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