Biology:Ulmus parvifolia 'Ohio'
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Short description: Elm cultivar
| 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,[1] 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.[2] The small leaves are grass-green in colour, turning a dull red in autumn. The samarae too are reddish in colour.[3]
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).[4]
Cultivation
Initially marketed by Princeton Nurseries, near Kingston, New Jersey (but not listed 2007), the tree is not known to be in cultivation beyond North America.
Accessions
North America
- United States National Arboretum, Washington, D.C., US.
References
- ↑ http://www.usna.usda.gov/Newintro/name.html
- ↑ "Elm". http://www.ca.uky.edu/agcollege/plantpathology/vaillanc/for410/Dutch%20Elm%20Disease/BASIC/DED/CORE/00/00/F1D.HTML#_Ohio.
- ↑ Amer. Nurseryman, 176 (12), 72, 1992
- ↑ "Elm Leaf Beetle Survey". Archived from the original. Error: If you specify
|archiveurl=, you must also specify|archivedate=. https://web.archive.org/web/20110719132152/http://www.sunshinenursery.com/survey.htm.
External links
- http://www.ces.ncsu.edu/depts/hort/consumer/factsheets/trees-new/cultivars/ulmus_parvifolia.htm Ulmus parvifolia cultivar list.
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