Plants to 6 m. Branchlets glabrescent. Petiole 3-5 mm; leaf blade ovate-lanceolate, 4.5-6 × 1.2-2.5 cm, thin papery, adaxially deep green and short gray hairy, abaxially rusty villous, base obtuse, margin recurved, apex acuminate; lateral veins numerous, arching toward margin. Cymes extra-axillary, 1.8-2.5 × 2.5-3 cm, with reddish hairs; peduncle 3-10 mm. Pedicel 1-3 mm. Sepals pubescent. Corolla greenish yellow, 1.5-2 mm, glabrous; lobes rounded, apex obtuse. Corona lobes falcate. Stigma head slightly exserted from anthers, apex umbonate. Follicles oblong-lanceolate in outline, ca. 6 cm × 6 mm, glabrous. Seeds oblong ca. 6 × 3 mm; coma to 3 cm. Fl. Jun-Aug, fr. Aug-Dec.

Thickets, montane forests; 200-800 m. Guangdong, Guangxi, Hainan [Thailand, Vietnam].