Description from Flora of China
Clerodendrum nutans Wallich ex D. Don (1825), not Jack (1820).
Shrubs or small trees, 2-4 m tall, erect. Branchlets 4-angled, ± winged, glabrous. Petiole ca. 1 cm; leaf blade oblong to oblong-lanceolate, 11-18 X 2.5-4 cm, subleathery, glabrous, base narrowly cuneate, margin entire, apex acuminate to acute; veins 7 or 8 pairs, adaxially slightly distinct. Inflorescences pendent thyrses, 20-33 cm, glabrous, axis and peduncle 4-angled or winged; bracts small, linear to awl-shaped. Calyx red to purple, ca. 1 cm, tube very short; lobes ovate-lanceolate, 7-8 mm. Corolla white, tube ca. 1.1 cm; lobes ovate, 1.1-1.5 cm. Stamens and style exserted. Fruiting calyx red to purple, inflated, thickened. Drupes yellow-green when young, black and shiny at maturity, globose, 1-1.3 cm in diam. Fl. and fr. Oct-Apr.
Open forests on mountain slopes; 100-1200 m. SW Guangxi, Xizang, SW Yunnan [Bangladesh, India, Myanmar, Vietnam].