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''Ulmus'' 'Recerta' is an American hybrid cultivar raised by the Wisconsin Alumni Research Foundation (WARF) as selection '196-5' from seed obtained from a Siberian Elm ''Ulmus pumila'' in Volgagrad, Russia; the male parent deduced as the Field Elm ''Ulmus minor''.〔Maethe, H. (1985), ''Deutsche Baumschule'', Sept. 1985, pp. 368-369.〕〔Vermeulen, N. (2001), ''Encyclopaedia of Trees & Shrubs''. Fitzroy Dearborn, ISBN 1-57958-119-6〕 ==Description== 'Recerta' produces a straight, clean stem, supporting a rounded crown. The leaves are elliptic, with typically acuminate tip, the blade 6 - 12 cm long by 3 - 6.5 cm broad; the margins are doubly, if bluntly, serrate. 〔Götz, W. (1985). Die Ulme kehrt zurück. ''Baumschulpraxis''. Nr. 12 / 85, pp 504 - 505. Aachen-Brand: Euroflora Klette Verl., Nd 〕 Image: Recerta leaf 2.jpg|Leaves Image: Recerta bark.jpg|Bark 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ulmus 'Recerta'」の詳細全文を読む スポンサード リンク
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