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Perennial herb; stems twining or prostrate, slender, ridged, glabrous (abnormally hairy).. Leaves ovate to linear, 6.5–12.3 (–15) cm. long, 1–5 cm. wide, obtuse or subacute at the apex, cuneate at the base, entire, coarsely sinuate-dentate or with small lobes above the base, pubescent or glabrescent, rarely hairy; petiole 0.5–3 cm. long.. Flowers several in close umbellate cymes; peduncle 3.6–11 cm. long; pedicels about 1 cm. long.. Sepals oblong, 6–8 mm. long, 3–4 mm. wide, ± obtuse at the apex, glabrous.. Corolla with a cylindrical tube and funnel-shaped limb, white, often with a magenta or mauve centre, 2–4.0 cm. long.. Capsule globose, glabrous, 6 mm. in diameter.. Seeds glabrous, brown, 3 mm. long.
An erect herb. It keeps growing from year to year. It grows 20-30 cm high. It has a tuberous rootstock. The tubers are like carrots and 10 cm long by 2 cm wide. There is usually only one stem but sometimes two. They are sometimes branched. The leaves are narrow and 10 cm long. The leaf stalks are short. The flowers are funnel shaped and white. There are 1-4 together in the axils of leaves. The fruit is a 4 seeded round capsule. It is green with purple tinges and turns brown.
Leaf lamina from broadly ovate to elliptic, oblong, lanceolate or linear 5–18 × 0·5–5·5 cm., obtuse or subacute at the apex, cuneate, rounded or truncate at the base, entire, coarsely sinuate-dentate or with small lobes above the base, herbaceous drying papery, green above, paler below, pubescent or glabrescent, rarely hairy; petiole 0·5–7 cm. long, minutely scabridulous to hirsute.
Twining or prostrate perennial herb. Leaves broadly ovate to elliptic, oblong, lanceolate or linear, entire; rounded or truncate at base. Flowers in dense cymes; Peduncle 35-270 mm long. Sepals triangular to oblong or lanceolate-oblong from broad base, glabrous. Corolla 20-55 mm long. Flowers white often with magenta or mauve centre.
Sepals unequal, subcoriaceous; outer ones triangular to oblong or lanceolate-oblong from a broad base, 6–7 mm. long, finely muriculate or verrucose on the back; oblong to ovate, 7–8 mm. long, with a rather broad hyaline membranous edge; all slightly accrescent and glabrous.
Flowers several in close umbellate cymes; peduncle 3·5–27 cm. long; bracteoles triangular to lanceolate-subulate, erect, acute, 1–3 mm. long, early deciduous; pedicels up to 1 cm. long.
Stems from a thin taproot, twining or prostrate, up to 3 m. long, slender, ridged, glabrous, puberulous or sometimes hirsute.
Corolla hypoc-rateriform, white, often with a magenta or mauve centre, 2–5·5 cm. long, with well-defined midpetaline areas.
Seeds brown, glabrous or minutely puberulous.
Capsule globose, glabrous, apiculate.
Perennial herb.
