Trees to 20 m tall. Leaves odd-pinnate, (18-)20-25 cm; petiole 5-7 cm, glabrous; rachis wingless, glabrous; leaflets 5-11(-15), petiolule to 2 mm, blade long elliptic to ovate-elliptic, 8-12 × 3.5-5 cm, abaxially glabrous except for hairs along midvein, in dense clusters in axils, and scattered along secondary veins, base subrounded, oblique, apex shortly acuminate. Fruiting spike 30-45 cm, axis glabrous or slightly pubescent. Nutlets subglobose, slightly ribbed, 7-8 mm, glabrous; wings broad, elliptic-ovate, 1-1.5 × 1.2-1.5 cm. Fl. Apr-May, fr. Aug.
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