栾树,为无患子科栾树属树种,我国北自东北南部,南到长江流域及福建,西到甘肃东南部及四川中部均有分布。落叶乔木,树形端正;枝叶茂密,春季嫩叶多为红色,入秋叶色变黄;夏季开花,满树金黄,甚为美丽壮观,是理想的绿化、观赏树种。宜作庭荫树、行道树及园景树,也可用作防护林、水土保持及荒山绿化树种。其木材较脆,易加工,可作板料、器具等;叶可提制栲胶;花可作黄色染料;种子可榨油,供制肥皂及润滑 Koelreuteria paniculata is a tree species belonging to the genus Koelreuteria, which is distributed in north China from the northeast to the south, the Yangtze River valley to the south and Fujian to the southeast of Gansu and the central Sichuan. Deciduous tree, tree-shaped; dense foliage, mostly red in spring leaves, into the autumn leaves turn yellow; summer flowering, golden tree, is very beautiful spectacular, is the ideal green, ornamental tree species. Suitable for Tingyin trees, street trees and landscape trees, but also can be used as shelterbelt, soil and water conservation and afforestation tree species. The wood is more brittle, easy processing, can be used for sheet metal, utensils, etc .; leaves can be made of glue; flowers can be used for yellow dye; seeds can be pressed for soap and lubricate