Introduction to leaf-seed ginkgo: There are two ancient ginkgo trees in the south of Weaver Girl Cave. They are tall and straight, with lush branches and leaves and abundant fruits. One of the trees has a pole height of 16 meters, a chest circumference of 3.35 meters, and a canopy covering 196 square meters. What is particularly surprising is that 20% of the fruits are produced on the leaves. It is extremely rare and is known as the "leaf-seed Ginkgo". There is only one such plant in the country. Some experts believe that it is a plant atavism.