Plants to 4(-6) dm, glabrous; rhizomes branching. Leaves: petiole to 15 cm; blade orbiculate-reniform to cordate-sagittate, mostly palmately 5-7-lobed, to 25 cm wide; margins scalloped; adaxial surface glaucous. Inflorescences: scape to 15 cm. Flowers: sepals ca. 1 cm; petals white or pinkish, oblong to oblanceolate, 15-30 mm; style to 3 mm. Capsules fusiform, 35-60 mm, glabrous. Seeds black to red-orange, obscurely reticulate. 2 n = 18 (cult.).