Locust tree of Hongdong
The Locust Tree of Hongdong (alternative spelling Hongtong), also called the Great Pagoda Tree of Hongdong, Ancient Big Locust Tree and Hongdong Big Locust Tree, is an old Styphnolobium japonicum-tree and important historical site and tourist attraction in Hongtong County, Shanxi in China. History
From about 1373 to 1417, there was a concerted effort from the ruling Ming dynasty government to resettle the North China Plains, which had been negatively affected by conflict and natural disasters shortly before the Ming took power. Immigrants from Shanxi were often concentrated near the tree, which was a settlement center. While en route to their new homes in the North China Plains, many migrants gathered at the tree in Hongdong before moving on to new areas for settlement, with some remaining nearby. To this day, a popular folk song exists in Northeast China pertaining to the Locust tree. A translation is as follows:

"Ask me where my ancestors came from, the big locust tree in Hongdong, Shanxi; what is the name of the ancient residence of my ancestors, The old stork nest under the big locust tree." Tourist attraction
The tree and surrounding complex retains cultural significance, being visited by about 200,000 tourists each year and being labelled as one of the AAAAA Tourist Attractions of China. The tree is a notable site for Chinese ancestor veneration, with tourists paying homage to their ancestors. The site also hosts large events for the annual Qingming Festival. References

Individual trees in China