Trees, 10-15 m tall, deciduous. Branches slightly sparsely pubescent, glabrescent. Leaves 13-21-foliolate; rachis 10-15 cm, including petiole 1.5-4 cm; leaflet blades oblong to obovate, 1.5-4 × 0.9-1.5 cm, membranous, both surfaces puberulent or adaxially glabrous, base obliquely cuneate, apex obtuse and shortly cuspidate. Pseudoracemes axillary, elongated, 5-15 cm; rachis nodes with 2 or 3 fascicled flowers. Pedicel 4-5 mm, slender. Flowers ca. 8 mm. Calyx campanulate, 2-5 mm, outside sericeous; teeth minute, deltoid. Corolla white; petals clawed; standard orbicular-subcordate. Ovary puberulent. Legume linear-oblong, flat, 3.5-5 × 0.9-1 cm, glabrous or puberulent, both ends narrowed; adaxial suture with a 2-3 mm wide wing. Seeds 1-5(-10) per legume. Fl. Feb-Apr, fr. May-Jan. 2n = 22.
Deciduous forest, especially teak forest. Mountain slopes; at elevations from 300-1,600 metres. Disturbed, degraded, fire-prone areas, deciduous forest with much bamboo and dry, evergreen forest.
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