Lianas woody, to 4 m. Branchlets gray-green. Leaves opposite or in whorls of 3; petiole ca. 1 cm; leaf blade elliptic to narrowly so, 9-12 X 3-4.2 cm, papery, abaxially glabrous; lateral veins numerous, inconspicuous abaxially. Cymes terminal or axillary, solitary or umbellate in groups of 3 or 4, 2-6.7 cm, pubescent; peduncle 1-4 cm. Sepals ovate, ca. 2 mm, obtuse, densely pubescent. Corolla white, pubescent on both surfaces, tube ca. 6 mm; lobes ovate, ca. 2 mm. Stamens inserted at corolla throat. Ovary glabrous. Style filiform. Fl. Sep.

* Dense montane forests; ca. 2000 m. S Yunnan.