Trees, 3-20 m tall. Leaves clustered and tufted at branch ends; petioles 1-8 cm long, slightly winged, pulvinate; lamina obovate-lanceolate, 50-162 by 18-36 cm, chartaceous to subcoriaceous, base cuneate, confluent onto petiole, margin entire, apex finely acuminate, acumen 20-30 mm long, lower surface glabrous; midrib prominent above, strongly prominent beneath, primary veins 26-65 pairs, brochidodromous, merging by curved marginal vein 2-6 mm from margin, prominulous above, prominent beneath, intercostal veins prominulous on both surfaces, arranged parallel at right angles to veins. Inflorescences ramiflorous spikes, pendulous, 15-105 cm long, with up to 66 flowers; rachis 1.5-3 mm diam., accrescent to 4-9 mm, densely yellow-puberulous. Calyx closed in bud, apex with small beak, rupturing early into a circumscissile, persistent cup-shaped ring, 2-5 mm high and a caducous cap of c. 8 by 15 mm, rusty-puberulous. Flowers sessile (subsessile in fruit with pedicel to 3 mm long); hypanthium obpyriform, yellow puberulous; petals 4, elliptic, c. 3 by 1.5-1.75 cm, pink or white; stamens pale yellow, staminal whorls 8, of which 3 staminodal, staminal tube c. 7 mm high, staminodia c. 1.25 cm long; disc annular, c. 2 mm high; ovary 4-locular, 4-6 ovules per locule; style 3.5-4.75 cm long. Fruits ovoid, tetragonous, winged when young, truncate, tapering at base, 5-7.5 by 2.5-5.5 by 2.5-5.5 cm. Seeds ovoid, c. 3.25 by 2.25 cm, deeply grooved.
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