Woody liana to 1 long; branchlets with faint longitudinal ridges, bark peeling, dark-brown. Petiole slender, 6-10 mm long, terete, slightly winged; blades thin-coriaceous, brown or greenish when dried, somewhat lustrous above, ovate to elliptic-ovate, (7-)12-16 x (5-)7-10 cm, margins entire, slightly undulate and revolute, apex obtuse or rounded or with short, blunt acumen, base obtuse to cordate; primary vein prominent on both surfaces, secondary veins 7-8 per side, arcuately ascending, prominent on both surfaces, tertiary veins loosely reticulate, prominulous on both surfaces. Inflorescence axillary, 6-20 cm long, many-flowered, lax, thyrsoid-paniculate, pseudo-dichotomously branched; peduncle and rachis dark, purplish brown, ultimate branchlets alternate, branches slightly thickened towards the nodes; bracts semiorbicular, less than 1 mm long, more or less erosulous; pedicels slender, to 1 mm long; bracteoles minute, acute. Flowers 2.5-3 mm wide; sepals slightly fleshy, punctate at base, deltoid, 0.4-0.8 x 0.6-1 mm, rounded or acute, margins scariose; petals spreading or reflexed, yellowish, membranous, glandular-punctate, orbicular to ovate and unguiculate; disk slightly fleshy, cylindric, 0.1-0.2 x 0.7 mm, margin entire; filaments 0.3 mm long, anthers ellipsoid, 0.1 x 0.15 mm; ovules 6-8 per locule, style 0.3 mm long. Mericarps ovoid or oblongoid, to 10 x 6 x 5 cm, pericarp smooth, pale brown to greyish and flabellately veined when dry; seeds to 3 cm long, wing narrow, to 4 x 1 cm or not developed.
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