Tree up to 21 m high. Branchlets terete, densely rusty tomentose, glabrescent. Stipules inconspicuous, rigid, c. 1 mm. Leaves: rachis 19-29 cm, terete, glabrous, glands not seen; pinnae 2 pairs, 9-24 cm, glands not seen, petiolules c. 5 mm, glabrous; leaflets 3 or 4 pairs per pinna, opposite, coriaceous, drying grey-green above, brown-green beneath, unequal-sided, ovate-elliptic or elliptic, 8.5-18 by 4.5-8 cm, base asymmetrically cuneate or rounded, apex obtuse or obscurely acuminate, upper surface glabrous, lower glabrous except for the major veins, principal lateral veins c. 8 per leaflet-half, arching, reticulation dense, slightly raised on both surfaces. Inflorescences cauliflorous, rusty tomentose, consisting of racemes aggregated into panicles to 32 cm, lateral branches 13-19 cm, peduncles up to 7 cm long; floral bracts not seen; pedicels 2-3 mm, tomentose. Flowers male, penta-or hexamerous. Calyx green, campanulate with slightly undulate margin, 6-8 mm, rusty tomentose. Corolla cream inside, brown outside, funnel-shaped, 2,0-24 mm, densely rusty puberulous; lobes linear-oblong, acute, c. 10-12 mm. Stamens cream, 55-65 mm, tube equalling the corolla-tube. Ovaries not seen (5-7 and villous according to Mohlenbrock, l.с.). Pod and seeds unknown.
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