A large tree, up to 6-15 (-25) m tall with smooth, pale greenish to whitish grey bark. Leaves usually subopposite, oblong-elliptic or somewhat sub-orbicular, 7-18 (-25) cm long, 4-6 cm broad, obtuse, rarely subacute with rounded or cordate base, glabrous to subglabrous above, partially pubescent beneath, entire somewhat crenate or serrate in the upper half or throughout, petiole 5-10 mm long with 2 (-1) rounded glands at the apex. Inflorescence axillary or terminal paniculate spikes, 3-6 cm long, 1 cm broad. Bracteole small, deciduous, linear lanceolate. Flowers yellowish white, sessile. Hypanthium broadly campanulate, 4-5 mm long, teeth triangular c. 15 mm long, glabrous. Stamens much exserted. Ovary glabrous; disc barbate. Fruit ovoid-oblong, 2.5-5 cm long, brown with 5 project¬ing wings, wings striated with 5 ascending veins.