This is the surrounding area of Henan Province, usually the mountain around Lushan County, Pingdingshan, Henan Province. There is a tree, and there are many on some mountains! Locals call this tree "Limu Tree" (local language), and locals call it "Acorn". There is also a leaf that is often used to make zongzi. The locals call it Huyezi, and its shell is covered with fluff, which is not as smooth as acorns. This kind of concrete is called "acorn" (vernacular)