Ulmus campestris Linnaeus var. japonica Rehder in Bailey, Cycl. Amer. Hort. 4: 1882. 1902; U. davidiana var. levigata (C. K. Schneider) Nakai; U. japonica (Rehder) Sargent; U. japonica var. levigata C. K. Schneider; U. propinqua Koidzumi; U. wilsoniana C. K. Schneider.

Bark blackish. Samaras glabrous. Fl. and fr. Feb-May.

Slopes, wetlands near streams, valleys; below 2300 m. Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Jilin, Liaoning, Nei Mongol, Ningxia, E Qinghai, Shaanxi, Shandong, Shanxi, Zhejiang [Japan, Korea, Mongolia, Russia (Far East, E Siberia)].