Distribution: Occurring west of the Cascades crest along the coast; Vancouver Island, B.C., south to Monterey, California.

Habitat: Coastal shorelines and sand dunes.

Flowers: April-September

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies

Low, spreading shrub-like perennial here in Washington - typically less than 30 cm., though can get up to 100 cm. tall in some parts of its range.

Alternate, simple, narrow, 1-2 cm long, with prominent midrib.

Small pinkish or whitish, 5-6 mm long, with 5 parts; in small clusters along stem.

Shiny black achenes 4-5 mm long.

Can be separated from other Polygonum species by its perennial decumbent stems, lacerate hyaline stipules, axillary flower clusters, and coastal habitat.