Japan Flora: Erect deciduous shrub with slender elongate branches; leaves oblong, sometimes ovate or elliptic, 6-12 cm. long, 2.5-5 cm. wide, acutely caudate-acuminate, cuneate with an obtuse end or rounded at base, dentate-serrate, coarsely hirsute above and on nerves beneath, the petioles elongate, slender, the stipules free, deciduous; fruit ovoid, about 1.5 mm. long. Mar.-May.