Diao pear, Rosaceae pear deciduous tree, alias deer pear, pear, wild pear, bird pear, etc., native to east China, south China to Vietnam, there are a number of varieties. Often wild in the warm and humid slopes, swamps, mixed woods, can be used as grafting Western pear and other rootstock (zhēn). Roots and leaves have medicinal value, can moisten the lungs and relieve cough, clear heat and detoxification, treatment of acute conjunctivitis; fruit can strengthen the stomach, stop dysentery.

Rot disease resistance is strong, the growth conditions are not demanding, so it is often used as rootstock, and the Western pear affinity is strong, and the sand pear, white pear system and poor. Roots, leaves, fruits can be used as medicine, have stomach, digestion, dysentery, cough; leaves and flowers on the haunted goat flower, quinoa has detoxification effect; fruit sugar content of 15-20%, can be brewed; wood hard, for the system of coarse and fine furniture and carving stamps with.