The Thoreau tree is an evergreen ornamental flower and tree. When the white dense flowers are in full bloom, it looks like the tree is covered with snow and has a pleasant fragrance. It is an excellent green ornamental tree worth using. The Thoreau tree is a tree rich in mythology in South Asia and both sides of the Taiwan Strait. It is known as the "fairy tree". Legend has it that Lady Maya gave birth to the Buddha Sakyamuni while holding the Solo tree.