Japan Flora: Tree with pubescent young branchlets; leaves narrowly ovate to ovate-oblong, 6-10 cm. long, 2.5-4 cm. wide, long-acuminate, rounded to shallowly cordate at base, doubly serrate with acute mucronate teeth, glabrescent above, with tufts of axillary hairs and long brownish hairs on nerves beneath, the lateral nerves of 20 to 24 pairs, the petioles 8-15 mm. long, puberulent above; fruiting aments pendulous, narrowly oblong, the peduncles 2-4 cm. long, puberulent, the scales 15-22 mm. long, narrowly ovate, with short appressed hairs, coarsely toothed; nuts oblong, about 4 mm. long, with few striations. Honshu, Shikoku, Kyushu.

var. cordifolia Winkl. A large-leaved phase, occurring with the species.