Tall, climbing or rambling shrub. Stems up to 10 m long, glabrous, older parts with a yellow-ish grey separable bark; flowering branches frequently with rugose bark, densely leafy towards apex. Leaves sometimes fascicled on very short branchlets, cordate or cordate-ovate, 30-110 x 25-75 mm, mostly entire, apex emarginate to acute, mucronate, basal sinus wide and distinct, glabrous to densely pubescent mainly on lower nerves, reticulate venation conspicuous beneath, lower surface mostly dotted with numerous black glands; petiole 20-95 mm long. Peduncles very short or obsolete; pedicels solitary or 2-5-fascicled, 20-60 mm long; bracts very small, early deciduous. Calyx subcylindric, subglabrous, 14-17 mm long; sepals oblong to elliptic, apex obtuse to emarginate, outer ones shorter, all much enlarged in fruit, up to 40 mm long. Corolla white, cream-coloured to greenish yellow, tube 80-150 mm long, very slender, limb 30-40 mm wide, salver-shaped with wool-ly hairs near apices of midpetaline area well defined. Stamens 5. Capsule ovoid to subglobose, 20 x 10-15 mm, glabrous. Seeds usually 4, covered with long, conose brown trichomes. Flowering time throughout the year.
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Woody climbing shrub, up to 10 m high. Leaf lamina ovate, obtusely acute or emarginate at mucronate apex, cordate at base, glabrous or ± pubescent, entire or ± subrepand, lower surface dotted with numerous small circular glands. Sepals elliptic obtuse, glabrous or slightly pubescent. Corolla hypocrateriform, tube up to 150 mm long. Flowers white.
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