Ulmus davidiana Planchon var. japonica (Rehder) Nakai

Distribution : Japan, Korea, Mongolia, Siberia, China (Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanxi, Zhejiang)

Description in Fl. Sylv. Kor. 19: 26. 1932