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Article from Bean's Trees and Shrubs Hardy in the British Isles
'Ampelopsis arborea' from the website Trees and Shrubs Online (treesandshrubsonline.
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A deciduous climber, with slender, purplish, nearly or quite glabrous, somewhat angular, zigzag shoots, slightly marked with lenticels; tendrils slender, forked. Leaves 5 to 8 in. long, about as much wide, doubly (sometimes trebly) pinnate, and composed of numerous stalked leaflets, which are ovate, 1⁄2 to 13⁄4 in. long, 1⁄3 to 11⁄4 in. wide; sometimes lobed, always with very large, sharp, triangular teeth, the apex pointed, the base narrowly to broadly wedge-shaped; dark green and glabrous above; at first downy on the veins and in the vein-axils beneath, ultimately nearly or quite glabrous. Flowers in open, long-stalked cymes. Berries dark purple, about 1⁄3 in. in diameter.
Native of the southern United States; introduced in 1700, and quite hardy, although better against a wall than in the open. It is a very handsome climber when in vigorous growth, but although it flowers occasionally, rarely develops fruit with us. Perhaps partially or wholly evergreen in warmer climates. (See also A. orientalis.)