Ulmus macrocarpa var. macrocarpa
Ulmus macrocarpa" var. "macrocarpa is found on hillslopes and in valleys at elevations of 700–800 m in the Chinese provinces of Anhui, Gansu, Hebei, Heilongjang, Henan, Hubei, Jiangsu, Jilin, Liaoning, Nei Mongol, eastern Qinghai, Shaanxi, Shanxi, Shandong. Beyond China it is also found in Korea, Mongolia, and Russia (Siberia). Fu sank "Ulmus taihangshanensis" as a synonym for this variety, but "U. taihangshanensis", as described from Henan, differs in having more pubescent twigs which never develop corky wings, and thinner leaves (papery rather than leathery). . "U. taihangshanensis" has more recently been sunk as a synonym of "Ulmus  lamellosa". Description. The tree is distinguished by a "leaf blade abaxially sparsely pubescent, adaxially hirsute or with convex trichome scars, base attenauted to rounded, apex shortly caudate. Samara pubescent, apically concave or rounded, wings thick, stigmas pubescent. Fl. Mar., fr., Apr." Pests and diseases. No information available. Cultivation. The tree is very rare in cultivation beyond Asia.