Trees, 5-33 m tall. Leaves: petiole 1-11 cm long, slightly winged towards lamina, not swollen at base; lamina obovate-lanceolate, 11-34 by 3-13 cm, coriaceous, base cuneate, margins entire or slightly serrate-crenulate, strongly revolute, apex acute or acuminate, the acumen 0-12 mm long, lower surface glabrous; midrib prominulous above, prominent beneath, primary veins 14-16 pairs, brochidodromous, merging through marginal veins 2-5 mm from margin, prominulous on both surfaces, intercostal veins prominulous and conspicuously reticulate on both surfaces. Cataphylls triangular, 4-6 by 2-3 mm. Inflorescences terminal or ramiflorous racemes, pendulous, 70-80 cm long, up to 90-flowered; rachis glabrous; bracts triangular, c. 1 by 0.5 mm. Calyx closed in bud, with a small beak of c. 1 mm, rupturing into 2-4 segments, 9-12 by 6-10 mm, without apical pore. Flowers with pedicels 0.5-2 cm long; hypanthium obpyramidal with acute edges, trigonous, 3-5 by 2.5-4 mm, glabrous, without appendages; sepals 2-4, oblong, c. 10 mm long, glabrous; petals 3-4, elliptic, 1.75-2 by 1-1.25 cm, red or pink; stamens yellow or pink to deep pink, staminal whorls 4, the inner one staminodal, staminal tube c. 1.5 mm high, staminodia c. 1.25 mm; disc thin, outside grooved, 0.25-0.5 mm high; ovary 3(-4)-locular, 3-4 ovules per locule; style 3.5-4.5 cm long. Fruits distinctly pedicelled, sharply 3-4-gonous, truncate, fusiform when young, later ovoid, cuneate at base, 4.5-6 by 1.25-1.75 by 1-1.5 cm, not winged. Seeds ovoid, trigonous, c. 3 cm by 9 mm.
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