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| Ulmus davidiana var. japonica 'Freedom' ： ウィキペディア英語版 |
Ulmus davidiana var. japonica 'Freedom'
The Japanese Elm cultivar ''Ulmus davidiana'' var. ''japonica'' 'Freedom' is another cold-resistant selection from Canada, raised along with 'Discovery' in the 1980s by Dr Wilbert Ronald, of Jeffries Nurseries Ltd., and Rick Durrand of Shade Consulting Services, Portage la Prairie, Manitoba ().
==Description==
Little descriptive information is available, beyond its comparison with the 'Discovery' clone in the latter's patent application, in which it is noted that 'Freedom' has an open crown with codominant lateral branching, and leaves tinged reddish-purple in autumn.〔Photograph of 'Freedom' elms, ().〕 ()
The species does not sucker from roots. 〔Heybroek, H. M. (1981). The Japanese elm species and their value for the Dutch elm breeding program. ''Proceedings of the Dutch Elm Disease symposium and workshop''. October 5–9, 1981, Winnipeg, Manitoba. pp 78–90〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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