Plants annual, not rhizomatous, stoloniferous, or bulbiferous. Stems spreading, freely branched, 5-20 cm. Leaves alternate, petiolate, clasping leaf sheaths absent; blade lanceolate to broadly ovate, more often rhombic to suborbiculate, 20-70 × 10-40 mm. Inflorescences leafy. Flowers 2-8; sepals 1.8-3.5 mm; petals 5, pink or white, 3-5 mm; stamens 5, anther white to yellow. Seeds 1-1.5 mm, tuberculate; elaiosome present. 2n = 16. Flowering spring-early summer. Moist woods; 0-1200 m; B.C.; Calif., Oreg., Wash.