Plant: Annual; hairs simple and stellate; stem erect, 1-5 dm, branched or not Leaves: basal rosetted, petioled, 3-6 cm, oblanceolate, subentire to pinnately lobed or dissected; cauline sessile, sagittate, ± clasping stem Inflorescence: racemes, many-flowered Flowers: bisexual; sepals 4, free; petals (0)4, free, white, distinctly clawed; stamens generally (2,4)6, generally 4 long, 2 short; ovary 1, superior, chambers generally 2, septum membranous, connecting 2 parietal placentas, style 1, stigma simple or 2-lobed Fruit: 4-8 mm; pedicel spreading to ascending; Seeds many; wing 0; embryonic root at back of 1 cotyledon Misc: Disturbed sites, gardens; < 2300 m.; All year Notes: fruit obdeltoid, flattened; petals clawed; pedicels spreading-ascending References: J.C. Hickman, ed. The Jepson Manual. W.B. McDougal. Seed plants of Northern Arizona. USDA website.ASU specimens.