Toona sinensis leaves are the tender leaves of the Chinese toon of melia family, also known as Chinese toon head, Chinese toon bud, they are tree vegetables that come in early spring. Chinese toon tree is distributed naturally in Qinling Mountain area of shaanxi province.
The nutritive value of Chinese toon is higher, besides containing protein, fat, carbohydrate, still have rich vitamin, carotene,iron, phosphorus, calcium, and so on.