A climbing shrub; branchlets slender, woody, subglabrous, dark brown. Leaves narrowly obovate-oblong, abruptly long-acuminate, subcoriaceous, glabrous above, glabrescent below, 5–6 in. long, 1 1/2–2 in. broad at the middle, narrowed gradually to the base; petiole 6–9 lin. long. Flowers 2–5 in cymes sessile in the axils of the leaves; bracts minute, linear, ferrugineo-pubescent; pedicels slender, obscurely pubescent, barely 1 lin. long. Outer sepals broadly cordate-ovate, obtuse, the outermost reaching 6 lin. long, the 3 inner much smaller, ovate, acute, all sparsely puberulous. The outer larger, forming in the fruit a flat membranous reticulately veined suborbicular structure with cordate base and overlapping lobes 2–2 1/2 in. long, the inner ellipsoidal, similar in texture but smaller, about 1 1/2 in. long. Corolla whitish, 5/8– 3/4 in. long; tube suburceolate; limb spreading; lobes short, broad. Stamens shorter than the corolla-tube; filaments dilated at the base, glabrous. Style bifid but not to the middle. Stigmas large, peltately ellipsoidal. Disc obsolete. Ovary incompletely 2-celled, 4-ovuled. Fruit 1-celled, 1-seeded, presumably indehiscent but not seen ripe.
