Leaves: petiole 4-8 cm; petiolules 0.5-1.3 cm; glabrous or partially hairy; leaflets thickly chartaceous, lanceolate or elliptical, 5 — 15 by 2-5 cm, acumen 0.3 — 1.5 cm long, base rounded or cordate, glabrous on both surfaces or slightly hairy on the lower surface, upper surface shiny, olivaceous when dry; nerves 7 — 9( — 15) pairs, looped, at angles of 80-90° with midrib. Thyrses slightly pubescent. Flower buds subglobose, ovoid, or pear-shaped, 3-5 mm long. Bracteoles c. 1.5 by 0.5 mm. Perianth in anthesis: outer and inner tepals unequal, inner surface towards the base with palish c. 1 mm long hairs; outer tepals ovate or lanceolate, connate at base, 6-6.5 by 2-2.5 mm, inner ones linear, 5-6 by 0.6-0.8 mm. Filaments ± filiform, c. 2 mm long, with c. 1 mm long hairs in the lower part; staminal appendages inconspicuous, solid, clavate, c. 0.25 mm long; in-terstaminal glands present. Fruits 2-winged and 2-ridged, nut 1.5-2.5 cm long; wings Ungulate, 3-3.7 cm long, ridges c. 0.5 cm long.
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