A huge climber, branches densely hairy, tendrils circinate, usually opposite the leaves. Leaves are alternate, petiolate, petiole c. 7.5-9 cm long, cordate at the base, lobed at the apex, orbicular in shape, 10-46 cm long and almost as broad, sparsely hairy on the upper and densely hairy on the lower surface. Inflorescence terminal, subcorymbose, densely hairy raceme; bracteoles persistent. Flowers white turning buff with age. Hypanthium c. 5-8 mm long. Calyx 3-5 lobed, c. 10-12.5 mm long, splitting into 2-3 parts, densely villous. Petals 5, c. 1.7-4.3 cm long, shortly clawed, spathulate, hairy externally. Fertile stamens 3, 2-7 staminodes may be present. Ovary densely tomentose, style hairy. Pod is woody, 22.5-30 cm long,5-7.5cm broad, dehiscent, rusty velvety, 6-12 seeded. Seed is flat, dark brown, polished, c. 2.5 cm in diameter. |
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