The old specimen in the Morton Arboretum, Illinois (2014), is an open-branched tree, more broad than tall, with ascending branches,[2][3] the bark breaking into shallow vertical plates.[4]
Cultivation
One specimen survives at the Morton Arboretum. The hybrid was cultivated at the Baarn elm research institute, The Netherlands, in the mid-20th century.[5] It is not known to have been introduced to Australasia.[1]
Accessions
North America
Morton Arboretum, Illinois, US. Acc. no. 2351–24. Raised from seed of the tree at the Arnold Arboretum.