Acacia, an indignation. Born in Yizhou, near Jing, Yong and Luo. The tree is like a sycamore, with very weak branches. The leaves are like sophora pods, thin and numerous. Every night, the branches must intertwine with each other. When the wind blows in the morning, they will disintegrate themselves without being tied together, so they are called Hetun, also known as Night Het. Red and white flowers bloom in May, with many silk velvets on the petals. The pods are actually produced in autumn, and the seeds are very thin and thin. It is suitable to plant it in the gardens and ponds of other people's houses, as it can relieve people's anger. ——"Chen Haozi·Flower Mirror"