Tall perennial climber. Stems woody, older parts with dark, rough bark, young twigs ± herbaceous, hairy. Leaves subcordate, subentire, apex mucronate and ± acuminate, base cordate to subtruncate, basal lobes rounded, both surfaces minutely adpressed-puberulous, ± glabrescent; main nerves slightly prominent beneath; blade 30-70 x 15-50 mm; petiole densely adpressed-puberulous, 10-30 mm long. Inflorescence axillary, cymosely 1-to few-flowered; peduncle densely adpressed-puberulous, up to 70 mm long; pedicels somewhat pubescent, faintly striate, 5-25 mm long; bracteoles 6 x 2-3 mm, early deciduous. Sepals unequal, glabrescent; 2 outer sepals cordate-triangular, 14 mm long; third sepal ± asymmetrical 10-11 mm long, innermost two oblong-lanceolate, 9-10 mm long. Corolla funnel-shaped, pale pink to white, lower portion of tube purple-mauve inside; tube glabrous, ±25 mm long, limb spreading, 5-angled, 40-60 mm wide; midpetaline areas strigose-pilose with white hairs on outside. Capsule ovoid-conical, glabrous, brown, 10-12 x 8 mm. Seeds 4, ±4.5 mm long, shortly velutinous with 7 mm long fulvous hairs on angles.
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Perennial climber. Leaves ovate-cordate to elongate-cordate, entire or faintly crenate; acuminate to attenuate and mucronate at apex, broadly and shallowly cordate to subtruncate at base, with rounded basal lobes. Inflorescence cymosely few-flowered, pedunculate. Outer sepals cordate-triangular, bi-auriculate by basal lobes of cordate base, subacuminate, subobtuse at apex, margin undulate. Corolla ± 20 mm long. Flowers white with lower part of tube purple-mauve inside.
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