Tree to 10 m tall. Leafy twigs 4–5 mm diam., drying blackish. Leaves to 47 cm, at least 11-jugate; petiole c. 5 cm, weakly pubescent. Leaflets alternate to subopposite proximally, opposite distally, to 15 by 4 cm, oblong-lanceolate, bases acute, apices acuminate, costae c. 12 on each side, prominulous in sicco; pseudogemmula minute. Thyrses c. 10 cm, subspiciform with short branches and cymules, in axils of young leaves; axes puberulent, bracts c. 1 mm, triangular, puberulent; pedicels c. 3–4 mm, puberulent. Calyx 3–5 mm long, obconical to campanulate, densely pubescent without, margin entire. Petals 4 or 5, 8 by 3 mm, linear-spathulate, two often narrower than the others, imbricate, white. Staminal tube 5-or 6-dentate, glabrous to very sparsely pubescent without, teeth retuse; anthers 5 or 6, 2 mm long, linear, locellate, glabrous, included. Ovary pubescent; style hirtellous; stylehead capitate to subdiscoid. Fruits unknown.
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