Large woody climber. Branchlets sparsely to densely pubescent. Leaves: petiole 7-11 mm long, pubescent; blade ovate, 7.6-25 by 1.4-8 cm, 2.1-5.6 times as long as wide, apex acuminate, base rounded, glabrous to sparsely pubescent above and beneath, 13-24 pairs of secondary veins, ascending, not particularly distinct from the reticulate tertiary venation. Inflorescence a terminal panicle, 2-8 cm long, densely pubescent throughout, many-flowered; peduncle 1.6-2.5 cm long; pedicels 1-6 mm long. Sepals orbicular, 2.8-5 by 2.3-3.5 mm, 1-2 times as long as wide, apex rounded, densely pubescent, ciliate. Corolla white; bud head ellipsoid, apex acute to obtuse; tube 13-18 mm long, 3.5-4.7 times as long as sepals, 1.1-1.9 times as long as lobes, densely pubescent outside, densely pubescent inside except at very base, pubescent in throat; lobes axe-shaped, projection short, 8.5-16 by 5.3-7.5 mm, 1.7-2.1 times as long as wide, pubescent outside on part exposed in bud, glabrous inside; corona of 10 free lobes, paired in each sinus, pubescent at base, otherwise glabrous, 2-3.3 mm long. Stamens inserted at c. 2.8 mm from corolla base which is 0.2 of tube length; anthers c. 2.5 by 0.6 mm. Ovary c. 1.2 mm high; style c. 1.3 mm long; style head c. 1.8 mm long. Fruit ovoid, c. 5.7 by 4 cm across.
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