Slender vine, essentially glabrous; stems striate. Stipules usually persistent, narrowly subulate, ca 2 mm long; leaf blades of 2, +/- oblong lobes directed at nearly 180° angle to each other (rarely with a small central lobe), truncate or subcordate at base, 1-2.5 cm long, 5-13 cm broad, the lobes rounded and mucronulate, the lower surface glaucescent with 3-5 pairs of round glands usually along midribs especially in axils of lateral veins; palmate veins 3. Flowers generally solitary in leaf axils; peduncles 3-9 cm long, obscurely jointed immediately below to 1 cm below the flowers, the bracts inconspicuous, setaceous, ca 1 mm long; calyx tube campanulate, ca 4 mm deep, the lobes 5, lanceolate, ca 1.5 cm long, light yellowish-green; petals 5, oblong, ca 1 cm long, greenish-white; filaments of corona in 2 series, the outer to 10 mm long, mostly pale purple, the inner ca 5 mm long, purplish, narrower; operculum plicate, ca 3 mm high, incurved, purplish; gynophore slender, to 8 mm long, purple; ovary narrowly ellipsoid, to 4 mm long, purple, capitellate. Berries globose, ca 1.5 cm diam, deep blue; seeds ovate, ca 3 mm long, transversely ridged, the ridges rugulose. Croat 8273, 8278.