Page authors: Don Knoke, David Giblin
Persicaria amphibia
water smartweed
Specimens
Photos

Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Atlantic Coast.

Habitat: River, stream, lake, and pond margins in water to 2 meters deep to adjacent moist uplands.

Flowers: July-October

Origin: Native

Conservation Status: Not of concern

Description:

[none provided]


Accepted Name:
Persicaria amphibia (L.) Gray
Publication: Nat. Arr. Brit. Pl. 2: 268. 1821. 1821.

Synonyms & Misapplications:
Polygonum amphibium L. [HC]
Polygonum amphibium L. var. coccineum (Muhl. ex Willd.) Farw.
Polygonum amphibium L. var. emersum Michx. [JPM, ILBC4]
Polygonum amphibium L. var. stipulaceum N. Coleman [JPM, ILBC4]
Polygonum coccineum Muhl. ex Willd. [HC]
Polygonum natans Eaton
Additional Resources:

PNW Herbaria: Specimen records of Persicaria amphibia in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Persicaria amphibia checklist entry.

E-Flora BC: Persicaria amphibia atlas page.

CalPhotos: Persicaria amphibia photos.

USDA Plants: Persicaria amphibia information.

45 photographs:
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