Mayr, known variously as the Manchurian, cut-leaf, or lobed elm, is a deciduous tree native to the humid ravine forests of Japan, Korea, northern China, eastern Siberia and Sakhalin, growing alongside Cercidiphyllum japonicum, Aesculus turbinata, and Pterocarya rhoifolia,[2][3][4] at elevations of 700–2200 m, though sometimes lower in more northern latitudes, notably in Hokkaido.

[6] Ulmus laciniata is chiefly distinguished by its leaves, often regularly incised to form between three and seven apical lobes, giving rise to its common name, the cut-leaf elm.

[9] The perfect wind-pollinated apetalous flowers are produced on second-year shoots in April (March in England), followed in May by elliptic < 20 × 14 mm samarae lightly-notched at the apex.

[10][11][12] Growth is moderate; the trunk of one specimen planted on permanently damp, fertile soil in south Hampshire, UK, increased in diameter at breast height (d.b.h.)

A specimen, obtained from the Leon Chenault nursery in Orléans, stood in the Ryston Hall arboretum, Norfolk,[18] in the early 20th century.

[19] The tree was comprehensively evaluated in the Netherlands in the 1950s as a potential source of anti-fungal genes for use in the Dutch elm hybridization programme, but was found intolerant of all but the most sheltered and humid conditions.

nikkoensis - the Nikko Elm, discovered as a seedling near Lake Chūzenji, near Nikkō, Japan, and obtained by the Arnold Arboretum in 1905.