Red plum (scientific name: Prunus mume Siebold&Zucc.), also known as spring plum, dry branch plum, and sour plum, is a plant in the Rosaceae family and the genus Prunus. Red plum is a deciduous small tree with a gray brown trunk, slender green branches, and no hair. Its leaves are broadly ovate to ovate, with fine serrations on the edges; The flowers are light pink or red in color, while cultivated varieties have purple, red, and other colors; The drupe is nearly spherical in shape, yellow or green in color, with a sour taste. The flesh and nucleus are not easily separated, and the fruit matures from June to July. It likes warm climate, has certain cold resistance, likes high air humidity, but avoids rainstorm during flowering. This type of plant is native to China.