Shrub or small tree to 5 m high, to 3.5 cm dbh. Branchlets glabrous. Leaves opposite; petiole 4-15 mm long, glabrous; blade papery, elliptic to obovate, 6-33.5 by 1.8-9 cm, 2-4.5 times as long as wide, apex acuminate or caudate, base cuneate or decurrent onto petiole, glabrous above and beneath, 6-20 pairs of secondary veins. Inflorescence delicate, 7-25 cm long; peduncle 2.5-18 cm long, glabrous; pedicels 3-6 mm long, glabrous. Sepals ovate, 0.9-2 by 1-2 mm, 1-1.5 times as long as wide, apex usually obtuse, occasionally acute, glabrous, ciliate. Corolla in mature bud 10-29 mm long with globose head which is 0.14-0.21 of bud length, apex rounded; tube not twisted, 10-26 mm long, 8-12 times as long as sepals, 1.2-3.5 times as long as lobes; lobes 5-9 by 1.5-4 mm, 2-4 times as long as wide; glabrous outside, pubescent around stamen insertion inside. Stamens inserted in the upper half of the corolla tube with the anther apex just beneath the mouth; anthers 1.2-2.4 by 0.3-0.7 mm. Ovaries 0.5-2 mm long; style and style head 7.2-19 mm long. Fruit stipitate, often having a twisted appearance, 0.7-2.2 by 0.3-1.2 cm, apex caudate, usually strongly reflexed, 1-or 2-seeded. Seeds obliquely ellipsoid with longitudinal grooves, 8-12 by 4-8 mm.
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