Trees ca. 20 m tall. Leaves 1-pinnately compound, 40-56 cm; petiolules 1-2 cm; leaflets 5-7, ovate-elliptic to ovate, 11-26 X 4-6 cm, black glandular abaxially, glabrous, base broadly cuneate to subrounded, oblique, margin entire, apex acute; lateral veins 7-10 on each side of midrib. Inflorescences cymose-paniculate, terminal. Calyx campanulate, 3-5 X 3-5 mm, persistent; teeth 5, minute, apex truncate. Corolla pale yellow; tube ca. 2.5 cm, ca. 5 mm in diam.; lobes ovate-rounded, ca. 1 cm. Style filiform, ca. 2 cm, glabrous. Capsule green, long terete, nodding, 20-28 cm X ca. 6 mm; pericarp thin leathery, dehiscing by 2 valves; septum terete, 2-3 mm in diam. Seeds minute, long ellipsoid, including wing ca. 1 cm. Fl. Jan-Mar, fr. Apr-Dec.

* Guangxi, S Yunnan.