Page authors: Don Knoke, David Giblin
Spergularia canadensis
Canada sandspurry

Distribution: Occurring west of the Cascades crest along the coast in Washington; Alaska to California; also in central Canada and northeastern North America.

Habitat: Coastal tidelands and mudflats.

Flowers: June-August

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern


Glabrous or glandular-pubescent annual, the stems several, erect or ascending, up to 2.5 dm. long and about 1 mm. thick.


Leaves opposite, not fascicled, up to 4.5 cm. long and 1-1.5 mm. broad, blunt to acute; stipules scarious, 1.5-3 mm. long and broad.


Flowers in open, leafy, terminal cymes; sepals 5, distinct, glabrous to glandular-pubescent, 3-4.5 mm. long; petals 5, white or pink, nearly equalling the sepals; stamens 2-5; styles 3, 0.3-0.4 mm. long.


Capsule dehiscent by 3 valves, longer than the calyx

Accepted Name:
Spergularia canadensis (Pers.) G. Don
Publication: Gen. Hist. 1: 426. 1831.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Spergularia canadensis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Spergularia canadensis checklist entry.

OregonFlora: Spergularia canadensis information.

E-Flora BC: Spergularia canadensis atlas page.

CalPhotos: Spergularia canadensis photos.

USDA Plants: Spergularia canadensis information.

14 photographs:
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