Herbaceous vines, 5-6 m long. Stem slender, glabrous, thinly striate. Petiole 1-2 cm, with 2 glands in distal 1/3; leaf blade lanceolate to oblong-lanceolate, 6-13 × 2-4(-6) cm, membranous, abaxially puberulous, laminar nectaries absent, base cordate, margin entire, apex long acuminate. Inflorescences sessile, 1-or 2-flowered, glabrescent. Pedicel 1-1.5 cm. Flowers white, 1.5-2 cm in diam.; hypanthium 4-5 mm in diam. Sepals 7-9 mm × ca. 2.5 mm, membranous. Petals 6-7 × 2-3 mm. Corona a single filamentous series, white, 2-3 mm, apices clavate; operculum plicate, ca. 1.5 mm high, membranous; disk ca. 0.3 mm high; androgynophore ca. 4.5 mm tall. Stamens 5; filaments ca. 3.5 mm, basally connate for ca. 1 mm; anthers oblong, ca. 2.5 × 1 mm. Ovary subsessile on androgynophore, ellipsoid, ca. 2.5 × 1.5 mm, glabrous; styles 3, free, 2.5-4 mm; stigmas capitate. Fruit blue at maturity, globose, 1-1.5 cm in diam., glabrous. Fl. Mar-May, fr. Jun-Jul.
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