Stems twining, young parts fulvous-strigose with partly slightly patent hairs. Leaves ovate, 6-14 by 3½-8½ cm, rounded or slightly cordate at the base, acute or slightly acuminate at the apex, upper surface glabrous, but sparsely strigose on midrib, lower surface strigose on midrib and lateral nerves, sparsely so on the intervenium; midrib and 5-8 nerves on either side prominent beneath, minor nervation reticulate, rather inconspicuous; petiole short, 1-4½ cm long, hairy like the stem. Upper inflorescences forming a rather lax panicle, composed of more or less long-peduncled cymes, leafless or with a few small leaves; lower ones axillary. Peduncles terete, longer than the petioles, 3-16 cm long, hairy like the stem, cymosely ca 25-flowered. Pedicels ca 3 mm long, hairy. Bracts ovate, ca 5 mm long, rounded, often shallowly split at the apex, hirsute beneath, caducous. Sepals subequal in form, broadly ovate, rounded at the apex, ca 4 mm long, fulvous-hirsute, sepal 3 with one, two inner sepals with two glabrous margins. Corolla funnel-shaped, ca 13 mm long, white, tube violet mauve, dark purple inside; limb distinctly 5-lobed, lobes ovate, ca 4 mm long; midpetaline bands hirsute with a glabrous wing on either side along the whole length, basal portion of corolla glabrous; inside sparsely hirsute above the base of the stamens. Filaments with dilated base, glabrous. Ovary glabrous, 2-celled. Fruit (unripe?) ovoid, ca 12 mm long, pink, 1-seeded.
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