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

Pollination: Bees, flies

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.