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A deciduous bush of graceful, spreading habit 10 ft or more high; said sometimes to be a small tree over 20 ft high. Branchlets downy or glabrous, armed with broad, flat spines 1⁄4 to 3⁄4 in. long. Leaves pinnate, 3 to 5, sometimes 9 in. long, aromatic; leaflets seven to eleven, broadly ovate, 1⁄2 to 2 in. long, slightly toothed; there are often a few spiny bristles on the upper surface, also on the midrib below; the main-stalk is armed beneath with short spines, also above, where the leaflets are attached. The inflorescence is a small panicle produced at the end of short, axillary twigs. Fruits reddish, with dark dots.
Native of China; introduced to Kew in 1869. One of the hardiest of the genus.