Vines woody. Branches terete, shallowly grooved, sparsely puberulous, glabrescent. Leaves simple; petiole 1.5--2 cm; leaf blade broadly lanceolate to ovate, 9--12.5 X 4.5--5.5 cm, leathery, both surfaces glabrous, base subtruncate, margin entire, apex acute or acuminate; basal veins 3--5, abaxially prominent. Cymes terminal, paniclelike, many flowered; peduncle 10--18 cm; bracts leaflike. Flowers ca. 1 cm in diam.; pedicel ca. 1 cm. Sepals 4, white, oblong, 7--8 × 2--3 mm, abaxially glabrous, adaxially glabrous, margin velutinous, apex rounded or obtuse. Stamens ca. 7 mm; anthers linear, ca. 4 mm, apex obtuse. Ovaries densely puberulous; style ca. 6 mm, densely villous. Fl. Sep.
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