Polygonum aviculare ssp. buxiforme
American knotweed, prairie knotweed
Specimens
Photos
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Sandy areas, dunes, marsh edges, roadsides, and wastelots.
Flowers: April-October
Origin: Introduced from eastern North America
Conservation Status: Not of concern
Pollination: Bees, flies
Description:
[none provided]
Accepted Name:
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif
Publication: Sida. 20: 988. 2003.
Publication: Sida. 20: 988. 2003.
Synonyms & Misapplications:
Polygonum aviculare L. var. littorale (Link) Mert.
Polygonum buxiforme Small [ILBC4, KZ99]
Polygonum littorale Link
Polygonum buxiforme Small [ILBC4, KZ99]
Polygonum littorale Link
Additional Resources:
PNW Herbaria: Specimen records of Polygonum aviculare ssp. buxiforme in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Polygonum aviculare ssp. buxiforme checklist entry
OregonFlora: Polygonum aviculare ssp. buxiforme information
E-Flora BC: Polygonum aviculare ssp. buxiforme atlas page
CalPhotos: Polygonum aviculare ssp. buxiforme photos
15 photographs:
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