Fls perfect; hypanthium short; sep, pet, and stamens each 5; staminodia 5, opposite the pet, each consisting of 3 or more sterile stamens ±connate at base and separate above, their anthers reduced to glands; ovary superior or partly inferior, unilocular; ovules numerous on 4 parietal placentas; stigmas 4, nearly sessile, commissural; capsule
4-valved, loculicidal; seeds numerous, oblong, angular, cellular-reticulate; glabrous perennial herbs, the lvs entire, palmately veined, mostly long-petioled in a basal rosette, or a single sessile one on the erect, 1-fld scape; fls erect, the pet white, conspicuously veined. 50, N. Temp.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.