Treelet or tree, 1.5-10 m high. Twigs and leaf rachises densely tomentose-velutinous; stems terete, relatively thick, 3-5 mm diameter and internodes often short, 0.5-1.7 cm. Leaves imparipinnate with 6-13 pairs of lateral leaflets; total length up to 13 cm including petiole 0.5-1 cm long; rachis segments 0.4-0.9 cm long; petiole and rachis terete, densely tomentose-velutinous, petiole diverging from shoot at angle of almost 90° especially at growing tips; leaflets coriaceous, bullate and carinate, with margins strongly recurved and often rolled, upper surface puberulent or glabrous when the cuticle thick, lower surface sparsely to densely pubescent, the midrib sericeous; lateral leaflets oblong or somewhat ovate, the largest 1.4-2.7 by 0.6-1 cm, with the base symmetrical, rounded to cordate and the apex broadly acute, inserted ± at 90° to leaf rachis; terminal leaflet elliptic, scarcely larger than largest laterals, 1.9-3.3 by 0.7-1 cm including petiolule of 0.3-0.5 cm, apex acute; margin crenate but usually obscured, 5-7 notches on each side in the largest lateral leaflets; midrib indented on upper surface and prominent beneath; secondary veins ± at 90° angle to midrib. Stipules ± orbicular, up to 1 by 1.2 cm, adaxial surface shortly velutinous. Inflorescence one pair of opposite dyads, the apical bud of the main stem (between the peduncles of the dyads) often continuing to grow vegetatively during flowering; peduncles 0.3-0.7 cm long; racemes up to 10.5 cm long; axes densely tomentose-velutinous; inflorescences and infructescences usually dense. Flowers unisexual (or sometimes bisexual?); pedicel 1-1.5 mm long, with short erect hairs; calyx lobes 0.8-0.9 by 0.6-0.8 mm, hirsute; petals obovate to ± circular, 1.1-1.5 by 1-1.1 mm, rounded at apex, margin ciliolate; disc lobes 0.4-0.5 mm long, oblong or broadly oblong; in male flowers: filaments c. 2.5 mm long, ovary c. 0.6 mm, densely pubescent, styles 0.1 mm, incurved; in female flowers: filaments up to 1.9 mm long, ovary 1.5-2 mm long, densely pubescent, styles c. 1 mm long, straight, pubescent at base. Capsules with valves up to 3.7-4.5 by 1.8-2.2 mm at dehiscence; exocarp densely pubescent; calyx lobes persistent. Seeds immature, c. 0.9 mm long, comose at both ends.
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