2, plum tree alias cherry plum, common fruit tree, deciduous small tree, the height can reach 8 meters; The red leaf plum base in Dafeng, Jiangsu Province is usually redder because of the different climate. Dry skin is purple-gray, branchlets are reddish brown, all smooth and hairless. Simple leaves alternate, the leaves are oval or oblong-lanceolate, 4.5-6 cm long and 2-4 cm wide, the apex is short and sharp, the base is wedge-shaped, and the edge is serrate. Five or eight pairs of pinnate veins are hairless on both sides or hairy in the axils of posterior veins, with dark green or purple color, and the petiole is smooth and glandular. Afraid of saline-alkali and waterlogging. Shallow roots, strong germination, and certain resistance to harmful gases. Peach trees are often used for rootstock grafting and propagation, and cuttings can also be used for propagation.