Daphne genkwa, also known as "wild coriander" or "mountain coriander", is a wild plant that grows in mountainous areas and the wild. Legend has it that the word "Daphne genkwa" comes from a general named Wang Jian in the Tang Dynasty. It is said that Wang Jian was exiled to Qiannan area of Guizhou because of his failure. The local villagers were in pain to see him. In order to comfort Wang Jian, they mashed the leaves of wild coriander and fed them to him. After Wang Jian ate it, his condition gradually improved, so he called wild vegetables "going down the mountain to die." Although this legend is full of romance, it is not credible. In fact, the word "Daphne genkwa" first appeared in the Book of Songs, and "Daphne genkwa fish" refers to a freshwater fish similar to crucian carp. Later, people confused this kind of fish with coriander produced in Shan Ye, and called it "coriander flower". Therefore, why Daphne genkwa is called "death down the mountain" is actually just a folk legend, lacking practical basis. The real reason should be that the word "Daphne genkwa" has been used to refer to coriander in ancient times, and "dying down the mountain" is just a legend handed down.