Ulmus 'Nana'
 The elm cultivar 'Nana' is a very slow growing shrub that with time forms a small tree. It was believed for many years to be a form of Ulmus glabra and is known widely as the 'Dwarf Wych Elm'. However the ancestry of 'Nana' has been disputed in more recent years Melville considering the specimen once grown at Kew to have been a cultivar of Ulmus × hollandica.