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-flowering and autumn-flowering elms.
Ulmus 'Frontier' sections
Intro Description Pests and diseases Cultivation Accessions Nurseries References External links
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