Description from Flora of China
Shrubs to 4 m tall. Branchlets pubescent when young, glabrescent. Petiole 5-12 mm, robust, pubescent or glabrous; leaf blade oblong-elliptic to oblong-lanceolate, 13-30 × 3-8 cm, papery, glabrous, secondary veins 12-14 on each side of midvein, base broadly cuneate, apex shortly acuminate to obtuse. Inflorescences axillary, 1- or 2-flowered. Pedicel ca. 1 cm, with several bracteoles at base. Sepals broadly ovate, 5-6 × 5-6 mm, puberulent. Petals yellowish green; outer petals narrowly lanceolate, 2.2-3 × ca. 0.7 cm, outside puberulent; inner petals ovate, ca. 1.2 cm, apex acute to acuminate. Stamens linear-oblong, ca. 2 mm; connectives apically truncate. Carpels cylindric, brown hispid; ovules 2 per carpel; styles as long as ovary; stigmas apically 2-cleft. Monocarps shortly stipitate, oblong-ellipsoid, 10-18 × 5-6 mm, sparsely hispid to glabrescent, apex obtuse. Fl. Jul-Sep, fr. Jul-Oct.
● Forested slopes; 300-600 m. S Guangxi, Hainan.