The fern is also known as the dragon's head vegetable, Ruyi vegetable and so on. The general plant up to one meter high, rhizomatic long and horizontal walk, with black-brown fluff. Early spring newborn leaves fist roll, was trident strong. The stalked leaves are tender, covered with white tomentum, pinnatifid, the lower pinnae opposite, brown spore cysts are continuously inserted on the edge of the leaf blade, with a double cyst cover. It is rich in nutrients, can be fried directly, and fried with meat, delicious flavor and rich in nutrients. It has the efficacy of moisturizing the lungs and regulating the qi, tonifying the deficiency and relaxing the collaterals, and clearing heat and detoxifying the toxin. Regular consumption can treat hypertension, dizziness, uterine bleeding, arthritis and other diseases, and has a preventive effect on measles and influenza. It is the best of the mountain wild vegetables.

Vegetable is a fern in the purple stalks family purple stalks genus purple stalks sporophyte young leaves of processed products, velvet fine. It has the function of moisturizing the skin, and has the title of "beauty fairy". Regular consumption can regulate the physiological function of the human body, nutritional health care for the human body, enhance physical fitness has a certain role. It also has the role of "anti-cancer", is both health care, food as one of the precious natural wild food. Because it can not be cultivated artificially, it is extremely valuable, and has the reputation of "king of wild vegetables".