There are bracken on the east side of Dongguan.

The difference between Pteridium aquilinum and Cantonese cuisine is that Cantonese cuisine belongs to a kind of cuisine, also known as Cantonese cuisine, which is one of the traditional cuisines in China and refers to the common traditional cuisine in Guangdong. Pteridium aquilinum belongs to a kind of wild vegetables, its leaves, buds and tender stems are rich in nutrients and various vitamins needed by human body, which are often used in fresh and dried products.

Pteridium aquilinum, also known as fist dish, cat claw dish and bibcock dish, likes to be born in sunny places in shallow mountainous areas. Usually, the edible part is the undeveloped young leaves and buds of Pteridium aquilinum. The young leaves of Pteridium aquilinum are like fresh tobacco leaves, with texture and tender and soft hand feel. Pteridium aquilinum not only can be eaten cold, but also can be fried, or processed into dried vegetables, stuffed and canned. The processed Pteridium aquilinum tastes fragrant and smooth, and then mixed with seasoning, which is cool and refreshing. It is a typical green food. The rhizome of Pteridium aquilinum contains 35-41% starch, and Pteridium aquilinum powder can be extracted as nourishing food.