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A deciduous climber, of vigorous habit, with downy stems. Leaves heart-shaped, usually pointed at the apex, 21⁄2 to 5 in. long, three-fourths as wide; covered beneath with down, slightly downy above; stalk 1 to 2 in. long, downy. Flowers solitary, produced in June from the joints of the stem, on slender, pendulous, slightly downy stalks about 2 in. long. Perianth 11⁄2 in. long; tube inflated, 1⁄2 in. wide, somewhat flattened, downy, pale green, much bent back so as to expose the yellow mouth and three spreading lobes, which are yellow, dotted with purplish red, greenish towards the margin. Seed-vessel 3 in. long, 11⁄4 in. wide, with six ridges. Bot. Mag., t. 8325.
Native of W. China; discovered by the Abbé David in 1886, but first introduced to cultivation by Wilson in 1903, and flowered in the Coombe Wood nursery in 1908. It appears to be quite hardy and, although not showy, is well worth growing for its prettily coloured, quaintly formed flowers.