Zhang of China lived under the locust tree in that province for 500 years.

China Zhang, a 500-year-old Sophora japonica, belongs to Hongtong County. According to records, there was a Guangji Temple on the west side of Jia Cun, two miles north of Hongdong in Ming Dynasty. This temple is magnificent, with many monks and pilgrims. Next to the temple, there is a "tree surrounded by several acres of shade", and the avenue of chariots and horses passes through the shade. The old harriers on Fenhe beach nest in the trees and are scattered all over the floor, which is very spectacular. The Ming government set up a bureau in Guangji Temple to concentrate immigrants, and the locust tree became a gathering place for immigrants.

In late autumn, the locust tree leaves, and the old crow's nest is very eye-catching. When the immigrants left, they stared at the tall ancient locust tree, and the old harrier who lived among the branches kept moaning, which made the immigrants who had left their hometown burst into tears and could not bear to leave. Finally, they can only see the old crane nest on the big locust tree.

To this end, the big locust tree and the old crane nest have become symbols for immigrants to bid farewell to their hometown. "Ask me where my ancestors came from, Shanxi Hong Tong Sophora japonica. What is the name of the hometown of ancestral home, the old man's nest under the big locust tree. " For hundreds of years, this folk song has been widely circulated in many areas of our country.