Page author: David Giblin
Stellaria graminea
grass-leaf starwort

Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains, and from the southern Great Plains east to the Atlantic Coast.

Habitat: Roadsides, fields, pastures, and lawns.

Flowers: May-July

Origin: Introduced from Eurasia

Growth Duration: Perennial

Conservation Status: Not of concern


Spreading, glabrous perennial with 4-angled, decumbent or ascending stems up to 10 dm. long


Leaves opposite, all cauline, lanceolate to linear-lanceolate, sessile, 1.5-2.5 cm. long.


Flowers many in a diffuse inflorescence, the pedicels slender, spreading, 2-4 cm. long; sepals 5, lanceolate, pointed, 3.5-5.5 mm. long, the margins membranous and hairy; petals 5, white, exceeding the sepals; styles 3, 2-4 mm. long.


Capsule ovoid, greenish-yellow, equaling the calyx.

Accepted Name:
Stellaria graminea L.
Publication: Sp. Pl. 1: 422. 1753.

Synonyms & Misapplications:
Alsine graminea (L.) Britton
Additional Resources:

PNW Herbaria: Specimen records of Stellaria graminea in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Stellaria graminea checklist entry.

OregonFlora: Stellaria graminea information.

E-Flora BC: Stellaria graminea atlas page.

CalPhotos: Stellaria graminea photos.

USDA Plants: Stellaria graminea information.

14 photographs:
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