Sophora japonica is a bud variety of Sophora japonica, which is deciduous, light-loving, slightly shade-tolerant and can adapt to dry and cold climate. With beautiful crown and fragrant flowers, it is a street tree and an excellent nectar source plant; Flowers and pods are used as medicine, which have the functions of cooling and astringency, hemostasis and blood pressure reduction; Leaves and root bark have the effects of clearing away heat and toxic materials, and can be used to treat sores. Wood is used for building. As a result of different habitats or artificial propagation, this species has various forms and has produced many varieties and forms.