Polygonum ramosissimum ssp. prolificum
proliferous knotweed
Specimens
Photos
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east across much of North America to the Atlantic Coast.
Habitat: Wet saline ground.
Flowers: July-September
Origin: Native
Conservation Status: Not of concern
Pollination: Bees, flies
Description:
[none provided]
Accepted Name:
Polygonum ramosissimum Michx. ssp. prolificum (Small) Costea & Tardif
Publication: Sida. 20: 995. 2003.
Publication: Sida. 20: 995. 2003.
Synonyms & Misapplications:
Polygonum prolificum (Small) B.L. Rob.
Polygonum prolificum (Small) B.L. Rob. var. autumnale (Brenckle) Brenckle
Polygonum prolificum (Small) B.L. Rob. var. profusum Brenckle
Polygonum ramosissimum Michx. var. prolificum Small [ILBC4]
Polygonum prolificum (Small) B.L. Rob. var. autumnale (Brenckle) Brenckle
Polygonum prolificum (Small) B.L. Rob. var. profusum Brenckle
Polygonum ramosissimum Michx. var. prolificum Small [ILBC4]
Additional Resources:
PNW Herbaria: Specimen records of Polygonum ramosissimum ssp. prolificum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Polygonum ramosissimum ssp. prolificum checklist entry.
OregonFlora: Polygonum ramosissimum ssp. prolificum information.
E-Flora BC: Polygonum ramosissimum ssp. prolificum atlas page.
CalPhotos: Polygonum ramosissimum ssp. prolificum photos.
USDA Plants: Polygonum ramosissimum ssp. prolificum information.
3 photographs:
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