Ulmus 'Frontier'
Elm cultivar / From Wikipedia, the free encyclopedia
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Ulmus 'Frontier' is an American hybrid cultivar , a United States National Arboretum introduction (NA 55393) derived from a crossing of the European Field Elm Ulmus minor (female parent) with the Chinese Elm Ulmus parvifolia in 1971. Released in 1990, the tree is a rare example of the hybridization of spring- and autumn-flowering elms. Tested in the US National Elm Trial coordinated by Colorado State University, 'Frontier' averaged a survival rate of 74% after 10 years.[1]
Quick Facts Ulmus 'Frontier', Genus ...
Ulmus 'Frontier' | |
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Genus | Ulmus |
Hybrid parentage | U. minor × U. parvifolia |
Cultivar | 'Frontier' |
Origin | US |
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