Tree to 30 m tall; trunk 5-55 cm dbh with short spreading buttresses; bark blackish or dark brown, inner bark white, sapwood pale yellow to white. Leaves: petiole 3-10 mm long; blade papery to subcoriaceous, narrowly elliptic, 4-10 by 0.8-4 cm, 3-8.1 times as long as wide, apex acuminate to subcaudate, base cuneate or decurrent onto the petiole, glabrous, 5-8 obscure pairs of secondary veins, tertiary venation obscure; with or without domatia, if present obscure. Inflorescence 2.5-3 cm long, 4-24-flowered; peduncle 1-2 mm long; pedicels 8-12 mm long. Sepals ovate, 1-2.5 by 1-1.5 mm, apex acute, glabrous outside. Corolla white; tube 5.3-8 mm long, lower part 4-6.5 mm long, upper part 1-1.5 mm long, glabrous inside and outside or with some hairs at top of tube outside; lobes narrowly elliptic, 8-12 by 3-7 cm, 1.3-3 times as long as wide, pubescent to glabrous outside, sparsely to densely pubescent inside, glabrous at lobe apices. Stamens slightly exserted, inserted at 5-7 mm from corolla base; anthers 2-2.3 by 0.5-0.8 mm. Disk cup-shaped, 0.5-1 mm high, 5-lobed. Ovaries 1-1.5 mm high, puberulent; style 5.5-7 mm long; style head 0.7-1 mm long. Fruit: sometimes only one fully developed, 8-25 by 0.2-0.4 cm. Seeds: grains 22-25 by 2-3 mm, glabrous; beak glabrous for 5-10 mm with a coma for 20-30 mm; coma hairs 10-60 mm long.
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