Japan Flora: Tree with grayish bark; young branchlets slightly long-pubescent, soon glabrous; leaves ovate or broadly so, or rhombic-ovate, 5-8 cm. long, 3-5 cm. wide, short-acuminate, broadly cuneate to obliquely rounded at base, undulately and obsoletely toothed, long-pubescent while young especially on nerves beneath and on margin, the lateral nerves of 7 to 11 pairs, ascending, straight or nearly so, the petioles 3-10 mm. long, slightly pubescent; involucre about 15 mm. long, nearly as long as the nuts, provided with rather dense linear awnlike fleshy appendages 3-7 mm. long, the peduncles rather thick, pubescent. May. Important forest-tree of temperate regions;

Hokkaido, Honshu, Shikoku, Kyushu.