Shrubs climbing. Stems slightly complanate, striate, brown-tomentose. Petiole 8-10 cm, tomentose to glabrescent; leaf blade ovate, rounded-cordate, or ovate-lanceolate, 20-35 × 15-30 cm, leathery, abaxially densely white tomentose, adaxially glabrate, veins palmate, 5-6 pairs from base, base cordate, sinus 1-4 cm deep, apex acute. Racemes on old woody stems, 3-5-flowered, 3-4 cm. Pedicel 2-4 cm, pendulous, brown villous; bractlets subulate, ca. 10 × 2-3 mm. Calyx yellow-green with purple veins and blotches, limb dark purple; tube geniculately curved, abaxially villous; basal portion of tube saccate, ca. 30 × 10 mm, orifice nearly quadrate; limb obliquely trumpet-shaped, ca. 3 cm in diam., 3-lobed; lobes unequal, upper 2 distinctly recurved, deltoid, lower one broadly deltoid. Anthers oblong, 3-4 mm. Gynostemium 3-lobed. Capsule ovoid, ca. 5 cm × 3-4 cm, dehiscing basipetally. Seeds not seen. Fl. May-Jun, fr. Aug-Sep.
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A climbing shrub. The stems have lines along them and a brown coating. The leaf stalks are 8-10 cm long. The leaves are oval or heart shaped. They are 20-35 cm long by 15-30 cm wide. They are leathery and have a white coating underneath. There are 5-6 pairs of veins spreading out like fingers on a hand. The flowers are on old woody stems. There are 3-5 flowers in a group.
Can be grown by cuttings or seedlings. Seeds needs soaking.
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