Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon, east across North America except for California, Nevada, and Utah.
Habitat: Dry to moist shorelines, streambanks, fields, and other disturbed, open areas..
Conservation Status: Not of concern
Glandular-pubescent annual with 1 to several simple or basally branched, decumbent to erect stems 5-20 cm. long.
Leaves opposite, the basal and lower cauline spatulate to oblanceolate, 7-25 mm. long, broadly short-petiolate; cauline leaves several pairs, linear-lanceolate to ovate, sessile.
Flowers several in a loose, leafy, bracteate cyme; pedicles slender, 5-20 mm. long, spreading to ascending by sharply deflexed near the tip; sepals 5, 3-5 mm. long; petals white, from slightly shorter to half again as long as the sepals, sometimes lacking; styles 5, distinct to the base, opposite the sepals; stamens 10.
Capsule cylindric, 2-3 times as long as the calyx.