Semi-deciduous tree to 32 m high, bole to 20 m, d.b.h. to 50 cm. Branchlets sparsely puberulous, glabrescent. Stipules triangular-filiform, 1-2 mm, early caducous. Leaves: rachis 4.5-16 cm, puberulous, with a gland 0.5-1.5 cm above the base, circular with raised margins, concave, c. 1-1.2 mm in diameter, and with glands at the junctions of most of the 2-6 pairs of pinnae, these puberulous, 4.5-10(-12) cm, with glands at the junctions of the c. 3 distal pairs of leaflets, elliptic, sessile, depressed in the central part, c. 0.1 mm; leaflets 6-10(-12) pairs per pinna, opposite, subsessile, chartaceous, asymmetrically elliptic-oblong, (10-) 15-25(-30) by (5-)7-10(-13) mm, base obliquely half cuneate/half rounded, apex rounded, obtuse, often emarginate or mucronulate, both surfaces glabrous or sparsely puberulous, main vein sub-diagonal, running slightly closer to the front margin. Inflorescence composed of solitary or ternate peduncles axillary to the distal leaves, peduncles 2.5-5 cm, puberulous, bearing corymbs of c. 12 pedicellate flowers, pedicel 4-6 mm, puberulous. Flowers dimorphic, pentamerous, bisexual. Calyx narrowly funnel-shaped, puberulous, 3-3.5 mm; teeth triangular, acute, c. 0.5 mm. Corolla narrowly funnel-shaped, puberulous, c. 7 mm; lobes triangular-ovate, acute, c. 3 mm. Stamens white, to 25 mm, tube equalling the corolla-tube. Ovary glabrous, c. 3 mm, stipe c. 1 mm. Pod dark brown, oblong, straight, flat, rigidly chartaceous, 12-24 by 3-5 cm, irregularly breaking up; valves puberulous when young, glabrescent, with strongly raised transverse veins, rugose over the seeds. Seeds dark brown, oblong-ellipsoid, biconvex, 9-11 by 5-7 by 3 mm; areole in the micropylar half of the seed, light brown, obtriangular, c. 3 by 4 mm, open towards the hilum.
Can be grown by seedlings. Seeds needs soaking.
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