Trees, dioecious. Leaves alternate, distichous on lateral branches, entire, glabrous. Inflorescence cymose, axillary or terminal. Calyx cupular, shallowly 5-lobed, glabrous. Petals 5, free, valvate in bud, glabrous. Male flowers: stamens 5, free; filaments flattened, villous above middle; anthers introrse, dorsifixed; gynoecium rudimentary. Female flowers: ovary with a fleshy lateral appendage at base, asymmetrical, glabrous; ovules 2; style obsolete; stigma capitate, shallowly 4-or 5-lobed. Fruit drupaceous with a thick fleshy lateral adnate appendage, flattened, elliptic or ovate, keeled; keel attached for most of its length to appendage. Seed 1.