Ostrya japonica, known as East Asian hophornbeam, or Japanese hop-hornbeam, is a species of tree in the Betulaceae family growing to 25 m tall. It is native to Japan, Korea and China. In China, it grows in temperate forests of southern Gansu, Hebei, Henan, Hubei, and Shaanxi provinces from elevation. In Japan it is known as Asada (浅田).
References
Further reading Ohwi, J. Flora of Japan, 1984. Woody Plants of Japan, Vol. 1, 2000.