Study on rare and endangered plants of Qiyao in Mt. Qinling
Qinling Mountains is an important ecological barrier of the upper reaches of the Yangtze River, and there are a large number of medicinal plant resources including many rare and endangered plants. This paper identified 26 kinds of rare and endangered plants of Qiyao plants in Qinling which belong to 21 genera and 10 families through investigation. This paper studied their protection level and endangered category, analyzed the endangering reasons and proposed some protection measures.