Tree to 21 m tall, to 60 cm dbh. Bark brown or grey, fissured or scaly. Leaves opposite, ocrea large and sticky; petiole 0.7-2.7 cm long, glabrous; blade coriaceous, elliptic, 3.2-25 by 1.2-8.1 cm, 2.1-4.3 times as long as wide, apex rounded to short blunt acuminate, base cuneate, glabrous above and beneath, punctate beneath, 15-26 pairs of secondary veins almost at right angles to the midrib to weakly angled to midrib, straight, often rather obscure above. Inflorescence 7-11.5 cm long, glabrous; peduncle 2.5-6.6 cm long; pedicels 15-22 mm long. Sepals ovate, 2.8-3 by 1.6-2 mm, 1.4-1.9 times as long as wide, apex obtuse, more rarely rounded or acute, glabrous, not ciliate. Corolla white to yellowish green, in mature bud 20-28 mm long with ovoid head which is c. 0.4 of bud length, apex rounded to obtuse; tube 15.5-20 mm long, c. 4.6 times as long as sepals, c. 1.5 times as long as lobes; lobes 11-24 mm long; glabrous outside, usually pubescent above anthers inside. Stamens inserted in the lower half of the corolla tube; anthers c. 3 by 0.4 mm. Ovaries c. 2 mm high; style and style head c. 1.7 mm. Fruit oblique ellipsoid, to 37 by 14 cm, apex acuminate to obtuse.