Flowers 5-to 6-merous. Hypanthium cup-shaped to broadly campanulate. Calyx more or less spreading, its lobes shorter than the tube or lacking. Petals obtuse, oblong-obovate or obovate. Stamens isomorphic; filaments short; anthers often coherent in a ring, oblong or ovoid, blunt, opening by a minute terminal pore; connective simple at base, often thickened or elevated along the back of the anther. Ovary wholly inferior, 3-to 6-celled; style elongate; stigma capitate. Trees, often of large size, with broad, usually pli-nerved leaves and small or medium-sized flowers in axillary cymes or fascicles from the leafless nodes.