合欢在我国自古就是一种吉祥树木,是阖家欢乐的象征,其树姿优美,树冠亭亭如华盖,翠绿色的羽状叶片纤细而清秀。每到夏季,粉红色的花朵开满枝头,其状若垂丝,奇特而美丽,并散发出淡雅的清香。合欢适应性强,对环境要求不严,并对烟尘、二氧化硫等有害气体有着较强的抗性,可种植于公园、风景区以及机关、厂矿、庭院、居民小区等处,既可单独种植,也可 Acacia in ancient China is a kind of auspicious trees, is a symbol of the joy of the whole family, its graceful tree pose, canopy crown such as cover, emerald green plume delicate and delicate leaves. Every summer, pink flowers are full of branches, its shape if the silk, peculiar and beautiful, and exudes elegant fragrance. Acacia adaptability, the strict environmental requirements, and smoke, sulfur dioxide and other harmful gases have a strong resistance, can be planted in parks, scenic areas and organs, factories and mines, gardens, residential areas, etc., either alone planting, also may