Ulmus parvifolia 'Stone's Dwarf'
The Chinese Elm cultivar Ulmus parvifolia 'Stone's Dwarf' was commercially released in the US in 1978. Description. The clone is distinguished by its rough, but not corky, bark. Pests and diseases. The species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle "Xanthogaleruca luteola". Cultivation. 'Stone's Dwarf' is not known to be in cultivation beyond North America. Accessions. None known.