Description from Flora of China
Lianas epiphytic, villous throughout. Stems stout, to 3 m, ca. 8 mm in diam. Petiole 1.5-2 cm; leaf blade oblong, 7-11 × 3.5-5 cm, leathery or thick papery, base rounded or truncate, apex mucronate; lateral veins 4-7 pairs, obliquely ascending, anastomosing before margin. Pseudumbels extra-axillary, globose, to 30-flowered; peduncle robust, 3-7 cm. Pedicel 1-2 cm. Sepals rounded. Corolla stellate patent; tube ca. as long as lobes, glabrous outside, pubescent inside; lobes triangular, ca. 4 × 4 mm. Corona lobes thick, outer angle rounded, inner angle acute or short acuminate, with an ovoid projection on back, center hollow. Follicles linear, 9-11 cm × ca. 4 mm. Seeds linear-lanceolate, ca. 5 mm; coma ca. 2 cm. Fl. Apr-Jun, fr. Sep-Dec.
Valleys, open woods; 400-1000 m. Guangxi, Guizhou, Hainan, Yunnan [Vietnam]