Treelet or tree, 3-30 m high. Leaves in whorls of 2-4, papyraceous when dried, sometimes thickly so; petiole 1-4 cm long; blades obovate or narrowly so, 10.5-26 by 4.6-10 cm, ratio 1.9-3.9, base cuneate to long cuneate, margin entire, apex acuminate to cuspidate, rarely acute; secondary veins 7-12 pairs, strongly arcuate ascending, not reaching the margin, not joining, not forming a submarginal vein. Inflorescence 4-9 cm long, axillary cymes, in whorls of 2, not much branched, congested; peduncle 3-7 cm long. Flowers 20-25 on each inflorescence. Sepals ovate, apex rounded, thick except along the margin, rough outside, smooth inside. Corolla white, cream, yellow, villose inside, rather dense, forming a belt of 2-2.5 mm wide just below the insertion of stamens; tube 11-14.3 mm long, tube-calyx ratio 4.8-5.1, tube-lobes ratio 0.8-0.9. Stamens inserted at 3.5-4 mm below the mouth, 0.7-0.8 of the length of the corolla tube; filaments 0.3 mm long. Pistil 8.8-9 mm long; ovary subglobose, apex rounded and abruptly narrowed at base of style; style 7-9 mm long, split at base. Fruit composed of 2 separate mericarps; mericarps narrowly ellipsoid to narrowly obovoid, base rounded, apex acuminate, acumen short, remotely verrucose or with fine irregular ridges when dried; endocarps split into fibres penetrating the mesocarps; fibres hard and thick, usually forming hard thick pointed ends. Seeds 3 at either placenta.
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