Lianas. Branchlets reddish villosulous when young. Leaves opposite; petiole 5-7 mm, with a tuft of hairs distally; leaf blade oblong-elliptic to obovate-oblong, 6-13(-15) × 3-6(-7) cm, both surfaces glabrous except abaxially very sparsely hairy, less sparsely so on veins, with or without tufts of hairs in axils of lateral veins, neither surface white verruculose, base obtuse or obtuse-rounded, apex obtuse, caudate; lateral veins in 6 or 7 pairs. Inflorescences terminal and axillary, laxly compound spikes 5-15 cm, usually grouped at branchlet apex and forming a ± lax, leafy panicle; bracts persistent at anthesis, lanceolate, 4-6 mm, tomentose. Calyx tube distally cupular, 3-5 mm, abaxially golden tomentose; lobes 5, broadly triangular, ca. 1 mm, apex aristate. Petals 5, obovate-oblong, ca. 2 mm, both surfaces yellow villous. Stamens 10, only slightly exserted, ca. 2 mm, not exceeding petals. Fruit glossy, cylindric, 5-winged, 2-3 × 0.8-1 cm, glabrous, apex acuminate.
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