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日本七叶树为七叶树科七叶树属落叶乔木,原产日本,现在我国上海、山东、河北、天津、辽宁等地均有引种栽培。笔者所在的河北省任丘市华北石油工矿区,土壤属中度盐碱地,日本七叶树生长良好。日本七叶树高达30m,小枝淡绿色,幼时有短绒毛。掌状复叶对生,小叶5~7枚,无柄,倒卵状长椭圆形,先端短急尖,基部楔形,缘有不规则重锯齿,下面略有白粉,脉腋有褐色簇毛,秋叶变浅橙黄色。花白色或淡
Japanese horse chestnut Aesculus Aesculus is a deciduous tree, native to Japan, and now China’s Shanghai, Shandong, Hebei, Tianjin, Liaoning and other places have introduced cultivation. The author is located in Renqiu City, Hebei Province, North China Petroleum Mining Area, the soil is moderate saline soil, aesculus japonicus grow well. Aesculus japonica up to 30m, twigs pale green, short hair when young. Palmate compound leaflets, leaflets 5 to 7, sessile, obovate long oval, apex short acute, base wedge-shaped, edges with irregular heavy serrated, below a little white powder, vein axils have brown tufts, Autumn leaves become pale orange. Flowers white or pale