Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Meadows, forest openings, sagebrush flats, roadsides, fields, and disturbed open areas at low to middle elevations.
Origin: Introduced from Eurasia
Growth Duration: Annual, Biennial
Conservation Status: Not of concern
Grayish, appressed-stellate biennial, the stem simple to freely-branched, 1-3 dm. tall.
Leaves alternate, entire, narrowly lanceolate, 5-25 mm. long.
Inflorescence of elongate, bractless racemes; sepals 4, 2 mm. long, persistent, with stellate and soft hairs on the back; petals 4, creamy white, very narrow, 3-4 mm. long; pedicels spreading, equaling the fruit; stamens 6, the 2 shorter ones flanked by linear glands 1 mm. long; style 0.5 mm. long.
Silicles stellate, ovate-oval, strongly compressed, 3-4 mm. long, slightly notched at the tip, flattened around the margins but bulged in the center over the 2 seeds per cell.