A glabrous climber. Leaves coriaceous, elliptical to oval-oblong, broadly rounded at the apex or narrowed to an obtuse point, usually obtuse and rounded or broadly cuneate at the base, more rarely subcordate, minutely or obsoletely serrulate, reticulation subprominent, 1 1/2–4 in. long, 3/4–2 in. broad; petiole 1/4– 1/2 in. Flowers 5–6 lines in diam., in loose, many- or few-flowered, axillary, puberulous cymes shorter than or rarely equalling the leaves, or sometimes on pendent subcirrhose branches forming a loose panicle interrupted by long internodes and reduced leaves. Sepals ovate or ovate-rotundate. Petals much exceeding the sepals, ovate-lanceolate or lanceolate, rather obtuse, glabrous within, slightly imbricate. Ovary slightly raised upon a short thick disk, narrowed into a subulate style, obovate- or oblanceolate-oblong, much compressed, 2–2 1/2 in. long. Fruit-carpels much compressed, oblong-oblanceolate or obovate, retuse or emarginate.
