Hawthorn, a genus of Hawthorn in Rosaceae, ranks first in the group of fruits for its anti-aging effect. Deciduous trees, up to 6 meters high.It is distributed in Shandong, Shaanxi, Shanxi, Henan, Jiangsu, Zhejiang, Liaoning, Jilin, Heilongjiang, Inner Mongolia, Hebei and other places.