Tree to 24 m high, trunk to 18 m, 37 cm in diameter; bark pale, whitish, Young branches densely ferrugineously tomentose, with linear lenticels. Stipules oblong-lanceolate, acute, 10-14 by 3-4 mm, densely tomentellous, caducous. Leaves: rachis 15-34 cm, rusty hirsute or tomentose, petiole 3.5-6 cm, with glands at or slightly below the junctions of the pinnae, elliptic to circular, sessile, with raised, sharp margins, 1.5-3 mm in diameter; pinnae 6-14 pairs, (3-)5.5—13 cm, tomentose; leaflets (5-)11-25 pairs per pinna, opposite, sessile, thinly chartaceous, asymmetrically oblong or subfalcate, (0.5-)0.7-1.6 by (0.3-) 0.5-0.7 cm, base half truncate-rounded/half cuneate, apex asymmetrically rounded, both surfaces glabrous, but mid-main vein and margin ciliate; lateral veins prominent, reticulate on both surfaces. Inflorescences consisting of pedunculate spiciform racemes aggregated into axillary panicles at the distal leaves, tomentose or hirsute, racemes 1.5-5.5 cm, peduncle c. 2.5 cm, pedicel 0.5-2 mm, subtended by inconspicuous bracts. Flowers pentamerous, white, bisexual. Calyx campanulate, densely sericeous, 2-2.5 mm; teeth triangular-deltoid, acute, 0.5-1 mm. Corolla funnel-shaped, sericeous, 5-5.3 mm; lobes oblong-lanceolate, acute-acuminate, 2.2-3.5 mm. Stamens 14-20 mm, tube 3-4 mm, exceeding the corolla-tube. Ovary 1-2 mm, solitary, sessile or shordy stipitate, glabrous or puberulous. Pod (not known in ripe state) oblong, flat, with slightly thickened margins, 8.5-16.5 by 2-3 cm; valves with obscure, reticulate veins and a few scattered hairs, possibly glabrescent. Seeds unknown.
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