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A slender-stemmed, elegant climber; shoots glabrous, or downy only when quite young. Leaves roundish ovate and heart-shaped at the base, or triangular and truncate at the base, often contracted at the apex to a slender point; amongst the smallest in the genus, being ordinarily 2 to 31⁄2 in. across, of thin firm texture, glabrous and glossy above, downy on the veins and in the vein-axils beneath. Inflorescence slender, 2 to 6 in. long. Fruits about the size of a pea, black.
Native of Japan, Korea and China. Long cultivated but now represented in British gardens mainly by the following:
V. flexuosa f. parvifolia (Roxb.) Planch.
V. parvifolia Roxb