Page author: David Giblin
Polygonum erectum
erect knotweed
Specimens
Photos

Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to Oregon and Nevada, east from the Rocky Mountains and northern Great Plains to the Altantic Coast.

Habitat: Dry, disturbed ground.

Flowers: June-September

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, flies

Description:

[none provided]


Accepted Name:
Polygonum erectum L.
Publication: Sp. Pl. 1: 363. 1753.

Synonyms & Misapplications:
Polygonum aviculare L. var. erectum (L.) Roth ex Meisn.
Additional Resources:

PNW Herbaria: Specimen records of Polygonum erectum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Polygonum erectum checklist entry.

OregonFlora: Polygonum erectum information.

E-Flora BC: Polygonum erectum atlas page.

CalPhotos: Polygonum erectum photos.

USDA Plants: Polygonum erectum information.

2 photographs:
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