Trees to 25 m tall. Leaves odd-pinnate, 23-45 cm; petiole 2-13 cm, tomentose; rachis wingless, tomentose; leaflets (5 or) 7-13; lateral leaflets sessile or petiolule to 2 mm, blade ovate, elliptic, or long elliptic, 9-19 × 3-6 cm, abaxially pubescent, base oblique, cordate, apex acuminate; terminal petiolule 1-2.5 cm. Fruiting spike 45-60(-70) cm, axis glabrous or tomentose. Nutlets 7-9 mm, base rounded, apex broadly conical, glabrous or pubescent; wings orbicular-ovate to elliptic-rhomboid, 1-3 × 1-2(-2.5) cm. Fl. Apr-Jun, fr. Jul-Sep.
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