Tree to 25 m, sometimes a shrub to 4 m. Bark grey to grey-brown. Juvenile leaves ovate, dark green, shining. Adult leaves lanceolate, somewhat falcate, acuminate, oblique, thick, concolorous; petiole flattened. Peduncle flattened, angular or terete; pedicels angular. Operculum conical or rostrate; hypanthium hemispherical. Fruits hemispherical; valves 3 or 4, level.