The city tree of Tai'an City is Chinese scholar tree, also called Chinese locust tree or family locust tree, which belongs to Leguminosae, the deciduous arbor. The Chinese scholar tree, having powerful adaptability, long life and sparse and casual shape, is a kind of scenic beauty tree with high sightseeing value. The total amount of Chinese scholar trees aged over one hundred years in Taishan Mountain are 42, among which the most well-known are Tang Scholar tree in Daimiao Temple, Wolong scholar tree in Doumu Palace, "Four scholar trees" on the bends, etc.