Plants to 8 m. Young branchlets rusty puberulent, branches of previous years pale gray, densely lenticellate. Petiole pubescent, 2-5 mm; leaf blade ovate-lanceolate, 2-7 × 2-2.5 cm, papery, glabrous adaxially, pubescent and glandular dotted abaxially, base subrounded or broadly cuneate, apex acuminate; lateral veins 6-10 pairs. Cymes extra-axillary or subterminal; peduncle short, densely rusty pubescent. Pedicel ca. 5 mm. Sepals broadly ovate, ca. 1 mm, ciliate. Corolla yellow; tube short; lobes oblong, ca. 2 mm, papillose inside. Corona lobes shorter than gynostegium. Stigma head short conical. Follicles lanceolate in outline, 4-6 cm × ca. 7 mm.Seeds oblong, 1-3 cm × ca. 5 mm; coma ca. 3.5 cm. Fl. May-Jun, fr. Sep-Oct.

Open montane woods, dense forests; 400-800 m. Guangdong, Guangxi, Guizhou, Yunnan.