Magnolia is a variety of magnolia that blooms white flowers. Also known as Mulan, Yulan, etc. Deciduous tree, up to 17 meters tall, a famous flower and tree in China, an important ornamental tree in early spring in northern China, and the city flower of Shanghai. It has a cultivation history of about 2500 years and is a precious ornamental tree in gardens. In ancient times, it was often planted in front of pavilions, terraces, buildings, and pavilions. It is now commonly found in gardens, factories, and mines as solitary or scattered plants, or as roadside trees on both sides of roads. In the north, there are also potted plants with a stake view. It has been introduced and cultivated all over the world.