Stems 6-21 cm × 1-3 mm, glabrous. Roots not or weakly fusiform-thickened proximally. Leaves: petiole glabrous. Leaf blade ovate or elliptic, 1.8-4.8 × 0.7-1.6 cm, base rounded to broadly acute, margins entire. Flowers: petals 5(-8), 5-8 × 2-6 mm. Flowering spring-summer (May-Aug). Damp meadows, woods, streams; 1400-3600 m; Calif., Idaho, Mont., Nev., Oreg., Wash.; Mexico (Baja Calif.)