1, the classification is different. Magnolia is a subgenus of the genus Magnolia in the plant kingdom, and Magnolia is a Michelia in the original perianth subclass Ranunculaceae in the plant kingdom. 2, the flowering period is different, the flowering period of Magnolia is in March, only once a year, and the color is bright white. White orchids bloom in summer and autumn, and more in summer. They can bloom twice a year, and the color is generally milky white. 3, the fragrance is different, magnolia has no fragrance, but magnolia has a fragrance that permeates the heart and spleen. The shapes of trees are different. Magnolia trees are generally two or three meters long, and the tallest can reach fifteen meters. Orchids are relatively tall. Potted orchids can reach three or four meters, and the normal height is generally around seventeen to twenty meters.