Basal leaf blades filiform to linear, 1-10 × 0.05-0.4 cm. Cauline leaf blades perfoliate or slightly cleft, 1-5 cm diam. Flowers 10-12 mm diam., petals white or pink. 2n = 12. Flowering Feb-Apr. Foothill pine/blue oak woodlands of Sierra Nevada foothills and lower slopes; 100-1200 m; Calif.