Polygonum aviculare ssp. buxiforme - Burke Herbarium Image Collection

Vascular Plants, Macrofungi, & Lichenized Fungi of Washington

Page author: David Giblin

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.

Synonyms & Misapplications:

Polygonum aviculare L. var. littorale (Link) Mert.
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.

USDA Plants: Polygonum aviculare ssp. buxiforme information.

15 photographs:

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