Lianas to 10 m, rusty villous especially on young parts. Petiole 1-1.5 cm; leaf blade orbicular to elliptic-oblong, 4.5-12 × 2-7 cm, leathery, adaxially deeply lustrous green and glabrous except for midvein groove, abaxially densely rusty villous, apex acute or apiculate; lateral veins 6-8 pairs. Cymes irregularly dichotomous, rusty villous; peduncle 3-10 cm. Pedicel ca. 2 mm. Sepals oblong-lanceolate, ca. 3 mm. Corolla yellowish, subrotate; tube short; lobes oblong-lanceolate, 8-10 × ca. 2 mm, villous at base. Corona lobes with subulate tips overtopping anthers. Stigma head beaked, longer than anthers. Follicles subcylindric, often solitary, divergent when paired, 8-18 cm × 5-10 mm. Seeds ca. 10 × 2 mm; coma to 2 cm. Fl. Apr-May, fr. Jun-Dec.

Dense montane forests, open woods; 500-1500 m. Fujian, Guangxi, Guizhou, Hubei, Sichuan, Yunnan [Cambodia, Indonesia, Laos, Vietnam]