大叶榆（Ulmus laevis）

大叶榆又名欧洲白榆，榆科榆属植物，落叶乔木，叶片通常倒卵状宽椭圆形或椭圆形，花常自花芽抽出，裂片不等长。果为翅果，花果期4-5月。喜光树种，适应性强。原产欧洲。我国东北、新疆、北京、山东、江苏及安徽引种栽培，在新疆生长良好。其树干通直，枝叶茂密，树冠圆满优美，适应性强，生长快，抗病虫能力较强，是用材和“四旁”绿化的优良树种之一。

Alsoknown as the European white elm elm, Ulmus pumila Linn, deciduous tree, leafblade usually obovate broadly elliptic or elliptic, often out of flower bud,lobes unequal. Fruit Samara, flower and fruit of 4-5 months. Light treespecies, strong adaptability. Native to Europe. In Northeast China, Xinjiang,Beijing, Shandong Jiangsu and Anhui, the introduction and Cultivation inXinjiang grew well. The straight trunk, lush foliage, crown fullness beautiful,strong adaptability, fast growth, disease and insect resistance ability, is oneof the excellent species for timber and all around the green.