Slender glabrous vines. Leaves ovate to oblong-elliptic, apices acute to acuminate, bases rounded to somewhat cuneate, 8-15 cm long and 5-7 cm wide; petioles stout, 1-1.5 cm long. Inflorescences umbelliform, glabrous, few-flowered; peduncles and pedicels ca. 1-2 mm long. Flowers greenish-yellow; calyx lobes broadly ovate, 2-2.3 mm long, equally wide, glabrous, the margins ciliate; corolla campanulate, glabrous, the tube ca. 2 mm long, the lobes spreading, narrowly ovate, ca. 2-3 mm long and 2 mm wide, glabrous, the margins white, ciliate; corona segments carnose, elongate, ca. 2.5 mm long; gynostegium 2-2.5 mm high, slightly exserted, terminated by a short conical beak. Follicles unknown.
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