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An evergreen twiner, growing 10 or 12 ft high, young shoots hairy. Leaves oval-lanceolate, 11⁄2 to 31⁄2 in. long, 1⁄2 to 1 in. wide, tapering at both ends, the tip blunt, downy beneath when young, becoming glabrous, dark glossy green above; stalk about 1⁄8 in. long. Flowers very fragrant, produced in July and August on glabrous, slender-stalked cymes, 11⁄2 to 2 in. long, usually on short lateral twigs. Calyx-lobes spathulate, reflexed at the tips, as long as the narrow basal part of the corolla and about half as long as the total length of the tube. Corolla pure white, scarcely 1 in. across, the tube about 1⁄4 in. long. Bot. Mag., t. 4737.
Native of China and Japan (see var. pubescens); introduced by Fortune from Shanghai in 1844. It was long grown in greenhouses, where its flowers were prized for their fragrance, but it is also now grown on walls in the south and west. It is rather slow-growing when young, and then more vulnerable to frost than when it is established.