Shrubs or trees, evergreen. Leaves alternate but often clustered apically on branchlets, petiolate; leaf blade leathery, pinnately veined, margin entire or serrate. Flowers axillary, solitary or in a short raceme. Pedicel short; bracteoles 2-7, caducous. Sepals 5, caducous after anthesis. Petals 5(or 6), basally ± connate. Stamens numerous; outer filament whorl adnate to petals; anthers dorsifixed. Ovary placentation axile. Capsule oblong-cylindric or cylindric, 5(or 6-8)-loculed, loculicidal; columella persistent to apex of locules. Seeds flat, apically with an oblong membranous wing; endosperm thin.