Dryopteris filix mas (L.) Schott is a plant species belonging to the family Dryopteridaceae and the genus Dryopteris. The plant is about 50-120 centimeters tall. Produced in the northwest and north of Xinjiang, distributed in Europe, North America, Central Asia, and the northern temperate zone. Growing in coniferous forests or by small rivers at an altitude of 1500-1900 meters, it is distributed in groups. The medicinal use of ferns has a long history in China, such as Guanzhong, which had been used as a medicinal plant for over 2000 years and had insecticidal effects; After liberation, with the continuous development of medical research in our country, a large number of valuable medical discoveries have been made.

Dryopteris filix mas (L.) Schott is a plant species belonging to the family Dryopteridaceae and the genus Dryopteris. The plant is about 50-120 centimeters tall. Produced in the northwest and north of Xinjiang, distributed in Europe, North America, Central Asia, and the northern temperate zone. Growing in coniferous forests or by small rivers at an altitude of 1500-1900 meters, it is distributed in groups. The medicinal use of ferns has a long history in China, such as Guanzhong, which had been used as a medicinal plant for over 2000 years and had insecticidal effects; After liberation, with the continuous development of medical research in our country, a large number of valuable medical discoveries have been made.