Fl. N.W. Amer., 239. 1898.
Leaf-blades usually shallowly, sometimes deeply 5–7-lobed, 8–20 (–35) cm wide. Flowers: sepals (pistillate) deltate to subulate or filiform, 1 mm; petals 8–10 mm (pistillate) or 5–6 mm (staminate), corolla usually white to cream, rarely greenish, cupulate to cupulate-rotate; staminodia present in pistillate flowers. Capsules usually striped dark green at maturity, short-ellipsoid to ovoid, tapered to beak, 4–6.5 (–8) cm, surface sparsely to moderately echinate (usually smooth distally), spinules weak, flexible, 3–6 mm. Seeds 3–6, orbiculate to elliptic, compressed, 16–22 mm. 2n = 32.
Phenology: Flowering (Feb–)Mar–Jun.
Habitat: Roadsides, disturbed areas, clearings, fields, dunes, open hillsides, stream sides, meadows, thickets, Douglas fir and redwood forests
Elevation: 0–800(–2000) m
B.C., Calif., Oreg., Wash.
"/2" is not declared as a valid unit of measurement for this property.No values specified.