Lianas; branchlets brown, nearly quadrate, glabrous, scabrous lenticellate. Petiole up to 1 cm, grooved; leaf blade ovate or ovate-oblong, 5-10 × 3.5-6 cm, papery, base rounded or broadly cuneate, margin entire or weakly denticulate, apex acuminate or acute; lateral veins 7-9 pairs, reticulate veins conspicuous. Cymes axillary or terminal, ca. 3 cm; bracts and bractlets deltoid, margin ciliolate; peduncle short, 1-1.2 cm; pedicel 8-10 mm. Flowers light yellow; sepals deltoid-ovate, up to 2 mm, densely farinose, pubescent; petals ovate-oblong, ca. 5 mm, margin ciliolate, apex subacute. Disk fleshy, ca. 1.5 mm tall, base subpentagonous, ca. 3 mm in diam. Filaments flat, 2-2.5 mm; anther nearly globose. Ovary nearly triangular, mostly concealed in disk, 3-loculed; style conical, 1.2-1.6 mm, apex truncate. Fruits 1-3-fascicled capsules, peduncle not dilated; capsule ovate-oblong, 7-8 × 3-4 cm, base attenuate, 4-seeded. Seeds winged, ca. 2 × 1.2 cm. Fl. Mar-Jul, fr. Oct-Nov.
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