A climbing shrub, 9–30 feet high, glabrous except puberulous veins on the lower surface of the leaves. Leaves oval or obovate-oblong, opposite, deciduous, crowded near the extremities of the branches, cuspidate or caudate at apex, narrowed at base, 2 1/2–8 by 4/5–3 1/2 in., lateral veins about 8–9 pairs, inconspicuous; petiole 1/3–1 in.; stipules persistent, glumaceous, ovate or lanceolate, crowded at the extremities of the branches, obtuse, 3/8– 5/8 in. long. Flowers solitary, pentamerous, fragrant, terminal, often terminating short branchlets, erect, subsessile, 6–10 in. long. Calyx-tube oblong; lobes subfoliaceous, linear or linear-spathulate, spreading, 1/2 in. long, persistent. Corolla-tube slender, cylindrical, green or yellowish; limb whitish 2–2 1/2 in. diam.; lobes oval, obtuse, dextrorsely contorted in bud. Anthers and style partly exserted. Fruit globose or somewhat pear-shaped, not ribbed, 1–1 1/2 in. diam.
