Distribution: Occurring west of the Cascades crest in coastal counties in Washington; British Columbia to California along the coast, also along the Chesapeake Bay on the Atlantic Coast.
Habitat: Along marine water shorelines in sand or gravel.
Origin: Introduced from Europe
Conservation Status: Not of concern
Glabrous, fleshy annual, the stems freely-branched, decumbent at the base, 1-5 dm. tall.
Leaves alternate, 4-8 cm. long, pinnatifid, the blade oblong-ovate to oblong-oblanceolate, narrowed to a broad petiole.
Flowers in racemes 4-15 cm. long; pedicles stout, 3-7 mm. long, ascending; sepals 4, 3-4 mm. long, with a few soft hairs at the tip, soon deciduous; petals 4, nearly white to lilac, long-clawed, 8-10 mm. long; stamens 6; style none.
Siliques fleshy, 12-18 mm. long, 2-jointed, the lower segment persistent, flared into 2 prominent, horn-like lobes at the tip, the upper segment ovoid and deciduous, narrowed to a truncate beak, each segment 1-seeded or the lower segment seedless.