Trees, 6-30 m tall. Leaves: petioles 1-8 cm long, swollen at base; lamina obovate-oblong to oblong, 9-20 by 3-8 cm, papyraceous, base cuneate, slightly confluent onto petiole, margin entire to slightly serrate-crenulate, apex acute or acuminate, acumen 5-14 mm long, lower surface glabrous; midrib equally prominent on both surfaces, primary veins 8-11 pairs, brochidodromous, merging by marginal veins 2-3 mm from margin, prominulous on both surfaces, intercostal veins slightly prominulous on both surfaces. Cataphylls oblong-lanceolate to lanceolate, c. 1.2 cm long, caducous. Inflorescences clusters of ramiflorous spikes, erect, with 2-14 flowers, 0.5-2.5 cm long; rachis 5-7.5 mm diam., glabrous; bracts lanceolate, 3-7 by c. 1.3 mm, apex round; bracteoles triangular, 1-1.5 by 1.5-2 mm. Calyx open in bud, red or partly pink. Flowers sessile; hypanthium subtetragonous, 5-11 by 4-9 mm, glabrous; sepals suborbicular, 3-6 by 5-9 mm; petals 4, elliptic, 2.3-3 by 1-1.6 cm, reddish white, pink or white; stamens white, staminal whorls 4-5, the inner one staminodal, staminal tube 3-4 mm, staminodia 12-20 mm; disc 0.5-1 mm high; ovary 4-locular, 3-6 ovules per locule; style 4.5-6 cm long. Fruits ovoid or almost fusiform, slightly truncate at apex, tapering towards base, 6-10.5 by 2.5-7 by 2.5-6 cm. Seeds single, ovoid to spindle-shaped, 3-4.5 by 1.5-3 cm, usually 5-ribbed.
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