Herbage glabrous. Leaflets: blade narrowly oblong. Flowers: sepals not accrescent, broadly lanceolate, 6-7 mm, glabrous or sparsely hairy; petals cream, aging or drying lilac, obcordate, 12-15 mm, 1.2-1.3 times as long as wide (apex recurved), sparsely hairy (hairs long); filaments ca. 4 mm; anthers cream or pinkish, ± 1 mm; style ± 4 mm. Nutlets 3.5 mm, smooth, tuberculate, or ridged.

Flowering Apr-May(-Jul). Winter-wet grasslands, woodlands, edges of vernal pools, edges of ephemeral streams; 150-2100 m; Calif.