Chaenomeles. as is, canon 500D. Source wikipedia : Chaenomeles is a genus of three species of deciduous spiny shrubs, usually 1–3 m tall, in the family Rosaceae. They are native to eastern Asia in Japan, China and Korea. These plants are related to the quince (Cydonia oblonga) and the Chinese quince (Pseudocydonia sinensis), differing in the serrated leaves, and in the flowers having deciduous sepals and styles that are connate at the base.