| 词条 | Ulmus parvifolia 'Ohio' |
| 释义 |
| name = Ulmus parvifolia 'Ohio' | species = Ulmus parvifolia | cultivar = 'Ohio' | origin = US }} The Chinese Elm cultivar Ulmus parvifolia 'Ohio' was raised by A. M. Townsend at the USDA National Arboretum , and released in 1992. Description'Ohio' is a moderately vase-shaped tree growing to approximately 13 m in height, the crown much the same in diameter but appears much looser and more open than most varieties. The small leaves are grass-green in colour, turning a dull red in autumn. The samarae too are reddish in colour.[1] Pests and diseasesThe species and its cultivars are highly resistant, but not immune, to Dutch elm disease, and unaffected by the Elm Leaf Beetle Xanthogaleruca luteola.[2] CultivationInitially marketed by Princeton Nurseries, near Kingston, New Jersey, (but not listed 2007), the tree is not known to be in cultivation beyond North America. AccessionsNorth America
References1. ^Amer. Nurseryman, 176 (12), 72, 1992 2. ^{{Cite web|url=http://www.sunshinenursery.com/survey.htm|access-date=17 July 2017|archiveurl=https://web.archive.org/web/20110719132152/http://www.sunshinenursery.com/survey.htm|title=Elm Leaf Beetle Survey|archive-date=2011-07-19}} External links
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