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Perennial; stems twining, almost glabrous, conspicuously 4-winged with wings up to 2 mm. wide.. Leaf-blade ovate-orbicular in outline, cordate at the base, up to 9 cm. long and 12 cm. wide, palmately lobed to the middle or beyond; lobes 3–5, elliptic, ovate or oblong, ± mucronate; petiole narrowly or widely winged, 1–2(–7.5) cm. long.. Peduncle winged, up to 10 cm. long, about 4-flowered; pedicels about 2–3 cm. long, often conspicuously scarred.. Sepals oval, usually obtuse, thinnish, up to 10 mm. long and 6.5 mm. wide.. Corolla white or cream with red or purple throat, rarely sulphur-yellow, 3.6 cm. long, 4 cm. wide; midpetaline areas strigosely pilose above.. Capsule 1.2–2 cm. in diameter, brown, glabrous.. Seeds subglobose, 5.5 mm. in diameter, glabrescent, black.
Perennial climber or shrub, mostly glabrous. Stems 1-3 m long, 4-winged to-angled. Leaves cordate-ovate to suborbicular in outline, 30-150 mm long and wide, palmately 3-9-lobed; lobes ovate; petioles 4-angled, up to 85 mm long. Inflorescence a few-flowered cyme; peduncle 4-angled, up to 150 mm long; pedicels up to 30 mm long, thickened, erect in fruit. Calyx 9-11 mm long; sepals oblong, papery, pale yellow-green, accrescent, spreading in fruit. Corolla broadly funnel-shaped, pale yellow to white, throat red or purple, 25-35 mm long, 35-45 mm wide; midpetaline areas pilose outside. Flowering time Nov.-Apr. Fruit an ovoid-conical capsule, 12-15 mm long; style base persistent, brown. Seeds subglobose, 5-7 mm long, black.
Leaf lamina ovate-circular, cordate at the base, up to 8 × 10 cm., palmately 3–7 lobed to the middle or beyond; lobes elliptic, ovate or oblong, acute or cuspidate, more or less mucronate, entire or subrepand; petiole narrowly or widely winged up to 8·5 cm. long.
Inflorescence cymosely few-flowered, rarely solitary; peduncle winged, up to 12 cm. long; bracteoles minute linear; pedicels up to about 3 cm. long, often conspicuously scarred, thickened and remaining erect in fruit.
Sepals ovate-oblong or oblong, usually obtuse, up to 10 mm. long, chartaceous, accrescent, becoming broadly ovate to circular and ultimately spreading in fruit.
Corolla broadly funnel-shaped, pale yellow, cream or white with red or purple throat, 3·5 cm. long; midpetaline areas strugosely pilose above.
Capsule ovoidconical more or less truncate or flattened-depressed at the apex and crowned with the persistent style-base, brown, glabrous.
Stems twining, almost glabrous, 4-winged with wings up to 2 mm. wide, ultimate branches slender, 4-angled.
Seeds subglobose, black, smooth and glabrous.
Perennial, more or less shrubby climber.
