Leaves grow on branches, and there are buds on the branches, and there are bud primordia on the buds. Through the nutrients transported by leaves and roots, it continues to grow and develops into young leaves, and then grows into new leaves after a period of time.
After a period of dormancy, the seeds of the tree will germinate and grow radicles, embryos and hypocotyls, and then gradually form roots, leaves and trunks. After that, the leaves of the tree begin to photosynthesize, and the oil glucose in the body is converted into protein. Finally, the cells gradually begin to divide, and the leaves are lush and the branches are thick.