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.
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
2 photographs:
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