Japan Flora: Slightly pubescent to glabrate usually spiny tree; stipules often spiny, the leaflets 9- 19, membranous, oblong, 2-5 cm. long, 1-2.5 cm. wide, rounded at apex, obtuse at base, glaucescent beneath; racemes glabrous, about 8 cm. long, 12-15 mm. wide. May-June.
Cultivated and sometimes naturalized. Introduced from the United States.