Clematis is a perennial climbing herbaceous plant of the Ranunculaceae family. Alias: Mountain pepper seedling, spicy clematis, clematis, iron clematis, iron clematis, black clematis, etc. The roots of Clematis contain triterpene saponins, clematis A, B, and C, as well as Pulsatilla, Pulsatilla lactones, sterols, sugars, phenols, and amino acids. The leaves contain lactones, phenols, triterpenes, Amino acids, organic acids, etc. Young clematis seedlings with unopened leaves are edible. In the past, whenever there was a drought in spring, it became one of the main wild vegetables used by people to survive the famine. Although people in modern times have solved the problem of food and clothing, after getting used to eating big fish and meat, it is also a rare delicacy to have a plate of cold mountain chili rice seedlings (ie Clematis).