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A vigorous deciduous climber, shoots covered with a dense white wool, a thick disk interrupting the pith at the joints. Leaves 2 to 41⁄2 in. wide, broadly heart-shaped to kidney-shaped, sometimes entire or with only a wavy outline, sometimes obscurely three-lobed; on young plants or strong sucker shoots the leaves are sometimes deeply three-, five-, or seven-lobed, but even then scarcely or very shallowly toothed. On first expanding the upper surface is woolly, but the wool soon falls away, leaving it a dull, dark green, whilst the under-surface remains covered with a thick white felt. The stalk is one-fourth to half as long as the blade, and white-woolly. Berries globose, about 2⁄3 in. wide, purplish, and unpleasantly flavoured.
Native of the USA from Oklahoma and Arkansas to Texas, often found on limestone. It is one of the most distinct of American grape-vines in the broad, almost entire leaves and vivid white wool beneath, suggesting a white poplar leaf. It was quite hardy when grown at Kew. Allied to it, and perhaps a hybrid from it is: