Bull. Calif. Acad. Sci. 1: 66. 1885.
Leaves persistent, 2-ternately compound or 3-5-foliolate, 10-18 cm; petiole 3-12 cm, sparsely hairy. Leaflet blades ovate to oblong, slightly 3-lobed, leathery, base cordate, margins thickened, crisped, apex notched; surfaces abaxially pubescent, glaucous, adaxially glabrous to rarely pubescent. Inflorescences: peduncle 2-3 dm; pedicel 1-4 cm, stipitate-glandular. Flowers 4-15; bracteoles 6-9, tan to brown, 1-4 mm, caducous, stipitate-glandular; sepals 6, yellow, spatulate, 6-10 mm, stipitate-glandular; petals 6, yellow, 4-6 mm, margins entire, apex strongly reflexed, apical nectary darker yellow; filaments stipitate-glandular. Follicles greenish brown, 8-15 mm including beak, beak 3-4 mm, densely stipitate-glandular. Seeds 3-10, reddish brown, reniform to oblong, 3-4 mm. 2n = 12.
Phenology: Flowering spring (May–Jun); fruiting spring–summer (Jun–Jul).
Habitat: Open, mixed evergreen forests and thickets on serpentine substrates
Elevation: 100-1500 m