Southern hawthorn berry is a plant of the Rosaceae hawthorn genus, native to Henan, Hubei, Jiangxi, Hunan, Anhui, Jiangsu, Zhejiang, Yunnan, Guizhou, Guangdong, Guangxi, and Fujiann province. Quercetin, hyperin, epicatechin, chlorogenic acid, citric acid and its methyl esters, as well as flavane polymers were isolated from the fruit. Dual use of medicine and food.