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Twiners large, woody. Young branches pubescent, finally glabrescent. Petiole 3-14 cm; leaf blade broadly ovate or circular, 6-20 X 5-20 cm, herbaceous, ± pubescent or subglabrous, abaxially glandular punctate, base cordate, apex short acuminate or abruptly acuminate, mucronulate; lateral veins 7 or 8 pairs. Cymes 1-3-flowered; peduncle 1.5-7.5 cm; bracts deciduous, minute. Pedicel 2-3.5 cm. Sepals circular, subequal or inner ones shorter, 1-1.8 cm, pubescent or glabrous abaxially, minutely glandular punctate, enlarging to 4-5 cm in fruit, apex rounded or emarginate. Corolla reddish purple, with a dark center, funnelform, 8-10 cm; limb 8-10 cm in diam.; midpetaline bands glandular punctate outside, sometimes pilose. Stamens unequal; filaments pubescent basally; anthers lanceolate, ca. 5 mm. Style filiform; lobes of stigma papillose. Fruit globose, 2-3.5 cm in diam. Seeds dark brown, 8-9 mm, pubescent. Fl. Oct-Nov, fr. Jan.
A large woody climber. The young branches are hairy. The leaf stalks are 3-14 cm long. The leaf blade is oval or round and 6-20 cm long by 5-20 cm wide. The base is heart shaped. There are 1-3 flowers in a group. They are funnel shaped and 8-10 cm long and wide. The fruit is round and 2-4 cm across. The seeds are dark brown and 8-9 mm wide.
