Low-yield plum, a woody plant of Prunus in Rosaceae, with hairless branchlets; Leaves oblong obovate or elliptic obovate; Pedicel glabrous, sepals oblong-ovate, petals white, oblong-obovate; The fruit is yellow or red, sometimes green or purple, covered with wax powder; Flowering in April; The fruiting period is July-August. Plum originated in southeast China, and now it is cultivated in most areas around and south of Qinling Mountains in China. Plums have strong adaptability to climate, and should grow in places with loose soil and good drainage. Often born in thickets on hillsides at an altitude of 400-2,600 meters, in open forests in valleys, or at the water's edge, at the bottom of ditches, on roadsides, etc. There are many breeding methods of plum, such as cutting seedling, ramet seedling, grafting seedling and seed seedling. According to "Southern Yunnan Materia Medica", plums are sweet and sour, and have the effects of clearing away heat and promoting fluid production, promoting diuresis and invigorating the stomach, clearing liver and purging fire. They are mainly used to treat internal heat due to fatigue, quenching thirst, ascites and dysuria. According to modern medical records, plums can promote the secretion of gastric acid and digestive enzymes, stimulate appetite and promote digestion. Plum meat has an auxiliary therapeutic effect on liver cirrhosis, and eating plums often has the effects of skin care and skin lubrication. Plums can be eaten raw, pickled or canned. In addition, it can also be used as a raw material for brewing fruit wine. The branches of plum trees are widely distributed, and the leaves are red from spring to autumn, especially in spring, which is a good foliage garden plant.