Trees. Leaves alternate. Conflorescence raceme-like or paniculately branched, ±erect, terminal and axillary. Flowers bisexual or male, slightly zygomorphic, paired, sessile on a common peduncle; common and floral bracts present at anthesis. Tepals valvate, coiled and reflexed at anthesis, dilated at apex, densely pubescent abaxially, sparsely so adaxially. Hypogynous glands 3, linear-subulate. Stamens 4; anthers bilocular, basifixed, dehiscing by longitudinal slits. Ovary sessile; ovules 1 or 2; style linear, subulate; pollen presenter filiform to cylindrical-clavate; stigmatic surface terminal. Fruit a 1-or 2-seeded follicle. Seeds flat, elliptic-ovate, with a marginal wing.