Ulmus macrocarpa var. glabra Nie & Huang is restricted to mixed forests in the Chinese province of Heilongjiang.Fu, L., Xin, Y. & Whittemore, A. (2002). Ulmaceae, in Wu, Z. & Raven, P. (eds) Flora of China, Vol. 5 (Ulmaceae through Basellaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis, USA. Nie, S. Q. & Huang, K. Q. (1987). Bull. Bot. Res. (7)1: 153, 1987
Description The tree is distinguished by a "leaf blade subelliptic, smooth, with tufted hairs in vein axil, base oblique, apex acuminate to narrowly acuminate. Samara smooth, glabrous, wings thin. Fl. Apr.–May, fr. May.–Jun".
Pests and diseases No information available.
Cultivation The tree is not known to be in cultivation beyond China.
References
External links efloras.org: U. macrocarpa var. glabra description