Essentially glabrous tree. Leaves alternate or subopposite at the apices of branchlets, petiolate; pedicels short. Flowers perfect, regular, 5-merous; perianth imbricate; calyx subobsolete, the lobes obtuse; petals inserted below the disc, sessile, shorter than or as long as the stamens; anthers dorsifixed, laterally dehiscent; disc fleshy, lobed; ovary adnate to the disc at the base, pyrami-date-trigonous, 3-locular, 2 (or more) ovules per locule, basifixed, the style short, the stigma 3-lobed. Fruit a triquetrous samara, the endocarp papery, 1-seeded, 1-loculate by abortion.