Ulmus parvifolia 'Emer II'

Ulmus parvifolia 'Emer II' or 'Emerald Vase' (selling name Allee) is a Chinese Elm cultivar selected by Dr. Michael A. Dirr and cloned in the late 1980s from a tree planted circa 1910 on the University of Georgia campus at Athens, that had survived ice-storms undamaged.

[3] Allee can reach a height of about 15 m, with a more upright crown shape than its stablemate Athena, its spread approximately 13 m, with arching branches bearing medium green, glossy leaves turning orange to rust red in autumn.

[6] The tree is being evaluated in the National Elm Trial coordinated by Colorado State University.

[7] With its more upright form, Allee has been described as a better street tree than the commonly planted lacebark elm 'Drake'.

[10] The tree has been introduced to Australia and Europe,[citation needed] and was marketed briefly in England by the Thornhayes Nursery, Devon.