Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to California, east across North America to the Atlantic Coast.

Habitat: Grain fields and waste areas.

Flowers: June-August

Origin: Introduced from Europe

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Self-pollination, moths, hummingbirds

Annual with 1-3 simple or branched stems, 2-6 dm. tall, stiff-hairy throughout and glandular-pubescent above.

Leaves opposite, ovate-lanceolate to elliptic-oblanceolate, 5-12 cm. long and up to 4 cm. broad, the lower ones long-petiolate, the upper sub-sessile.

Flowers few to several in an open inflorescence, the pedicels 3-30 mm. long; calyx 5u00e2u20acu201clobed, tubular, 15 mm. long at flowering, much enlarged in fruit, 10-nerved, the lobes lance-linear, 5-9 mm. long; petals 5, white to pinkish, glabrous, the claw 12-25 mm. long, auriculate above, the blade 7-10 mm. long, bi-lobed less than half the length; blade appendages 2, 0.5-1.5 mm. long and broad; stamens 10; styles 3. Flowers open at dusk.

Capsule 3-celled.