Trees ca. 16 m tall. Barks gray-black. Leaves 2(or 3)-pinnately compound, ca. 70 cm; lateral petiolules 1-5 mm, terminal one 1-2.5 cm; leaflets ovate, 4-9 X 2-5 cm, densely white glandular adaxially, base cuneate, oblique, margin entire, apex caudate-acuminate; lateral veins 5-7 on each side of midrib. Inflorescences cymose-paniculate. Calyx ca. 3 cm X 8 mm; teeth 5, long triangular, ca. 1.2 cm. Corolla white to pale yellow, 7-9 cm. Stamens 4, inserted nearly at base of corolla tube. Capsule gray-black when mature, long terete, subwoody, ca. 50 X 1-1.2 cm, densely white lenticellate, scabrous. Seeds ellipsoid, including wing 1.4-1.7 cm X 3-5 mm. Fl. Apr-May, fr. Aug-Nov.
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