Herbs, perennial. Rhizomes creeping, short, stout, with numerous fibrous roots; aerial stems erect, simple, glabrous, with large scales at base. Leaves peltate, large, 3-9-parted or lobed. Inflorescence of few fascicled flowers or a subumbel. Flowers perfect, nutant. Sepals 6, membranous, caducous. Petals 6, dark purplish red. Filaments decumbent, flat; anthers introrsely dehiscent; anther connective wide and usually prolonged; pollen grains 3-colpate, subspheroidal or suboblate, sexine thicker than nexine, foveolate. Pistils solitary; ovary 1-loculed; ovules numerous; stigma globose. Berry red or purplish red. Seeds numerous, without arils. 2n = 12.