Hypanthium cupulate or turbinate; sep 5; pet 5, small, spreading; stamens 15-many; pistils mostly 5; styles terminal; ovules 2-several; fr a firm follicle, dehiscent on the ventral suture; endosperm none; shrubs with exstipulate, simple lvs and white to pink or purple fls in terminal or lateral infls. 70, N. Hemisphere
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.