Liana, or shrubby creeper. Stipules triangular, or a series of filaments, c. 1 mm long. Leaves subcoriaceous or chartaceous, ovate-oblong, ovate, broad-elliptic to elliptic-lanceolate, 3½-16 by 2-9 cm; base obtuse, cuneate; apex acute to acuminate, sometimes obtuse and slightly apiculate; margin crenate to subentire; nerves 5-8 pairs; petiole 3-7 mm. Inflorescences axillary and extra-axillary, 1-4 times branched, few-flowered, densely reddish brown puberulous, 1⅓-4 cm long, sometimes very short. Peduncle 2/3-2 cm. Bracts triangular, c. 1 mm long. Pedicels 2-5 mm. Flowers yellowish, or green. Calyx lobes semi-orbicular, or deltoid, ⅔-1 mm long, brownish puberulous outside. Petals ovate-oblong, 3-5 by 1⅓-2 mm. Disk annular-pulvinate, 1.5-2.5 mm ø, c. 1 mm high, sometimes the basal part slightly extended outwards or downward and slightly 5-angular. Stamens 1½-2 mm. Pistil 0.75-2 mm emerging from the disk. Ovules (5-)6(-8) in each cell. Follicles obovate to obovate-or elliptic-oblong, 2½-7.75 by 1.5-3 cm, emarginate or obtuse at the apex; pericarp thin-leathery, the margins of suture slightly spreading after dehiscence. Seed proper elliptic-or ovate-oblong, 1-2 by 0.5-0.75 cm; wing ovate to ovate-oblong, or elliptic, 2-4 by 1.25-2 cm.
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