Fragrant tree, also known as seed-bearing flower and trident, is a deciduous shrub of Daphne, about two meters high, with yellow flowers, and forty or fifty flowers clustered into a head, which is rich and fragrant. Xiang Jie is named because it flowers first and leaves later, its branches are flexible, it can be tied at will without breaking, and its flowers are rich. Xiang Jie branches once a year, and each branch is divided into three branchlets, so it grows into a trident, so it is called a trident tree. Secondly, it is said that if people dream at night and tie a knot on a fragrant tree in the morning, they can realize good dreams and resolve nightmares, so they are called "dream flowers" and "dream trees".