Tree to 40 m tall; trunk to 120 cm dbh, sometimes with buttresses; bark rough or smooth, pale brown, dark grey or whitish, inner bark pale yellow, less often brown. Leaves: petiole 2-10 mm long; blade coriaceous, narrowly to broadly elliptic, 3.5-14 by 1-6 cm, 2.1-4.8 times as long as wide, apex acuminate or subcaudate, base cuneate or decurrent onto petiole, glabrous, 4-7 pairs of secondary veins, tertiary venation obscure; with or without domatia, if present with or without hairs. Inflorescence 1.5-3 cm long, 4-25-flowered; peduncle 1-3 mm long; pedicels 7-12(-15) mm long. Sepals 1.5-3 by 1-2 mm, apex acute or acuminate, glabrous or, rarely, pubescent. Corolla white or pale yellow; tube 5-8(-9) mm long, no obvious upper tube, minutely puberulent outside and inside; lobes obovate or ovate, rarely elliptic, 6-13 by 3-7 mm, 1.4-2.3 times as long as wide, minutely puberulent outside and inside. Stamens exserted, inserted at 5-8 mm from corolla base; anthers 2-2.5(-3) by 0.5-1 mm. Disk ring-to cup-shaped, 0.5-1.5 mm high, 5-lobed. Ovaries 1-2 mm high; style 3-7 mm long; style head 1 mm long. Fruit 8-50 by 0.4-0.6 cm. Seeds: grain 20-35 by 1.5-3 mm; beak glabrous for 5-10 mm, bearing a coma for up to 65 mm; coma hairs 10-80 mm long.
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