Japan Flora: Young branch- lets soon becoming glabrous; leaves ovate or ovate-elliptic, 5-8 cm. long, 2.5-5 cm. wide, short-acuminate, obsoletely undulate, rounded to obtusely rounded at base, long-pubescent on both sides while young, soon glabrate above, the hairs persistent beneath, the lateral nerves of 10 to 14 pairs, the petioles 8-10 mm. long, soon glabrate; involucre 6-8 mm. long, about 1/2- 2/3 the length of the nuts, with a short ovate-deltoid appendage, the peduncles slender, glabrous, 3-4 cm. long. Apr.-May. Mountains;

Honshu, Shikoku, Kyushu.