Lianas woody, to 13 m, glabrous except for inflorescences. Branches slender, lenticellate. Petiole 5-10 mm; leaf blade narrowly elliptic, 6-10 X 2-3 cm, base cuneate to narrowly rounded; lateral veins 5-7 pairs. Cymes to 7 X 7 cm; peduncle 2-3.5 cm. Pedicel 4-10 mm. Calyx ca. 1.5 mm, broader at base. Corolla greenish, ca. 5 mm. Stamens inserted at corolla throat; disc cupular. Ovary obscurely 2-lobed. Style long; pistil head ovoid. Follicles ca. 12 cm, connate, narrowly fusiform, glabrous. Seed coma ca. 4 cm. Fl. May-Aug, fr. Aug-Dec.

* Rocky areas; 500-800 m. Guangxi (Longjin, Lingyun).