The Camperdown Elm Ulmus glabra ‘Camperdownii’ is a cultivar which cannot reproduce from seed. Although still classed as a cultivar of U. glabra the tree was considered a nothomorph of U. × hollandica var. vegeta by Green [1] (1964) not U. glabra.
This page contains content from the copyrighted Wikipedia article "Ulmus glabra ‘Camperdownii’"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.