Aconitum, also known as aconite or epiphyllum, alias: grass crow, aconite, salt aconite, goose flower, iron flower, five poison, Latin name: Aconitum carmichaeli Debx. Buttercup family, aconite plant cotyledon of the processed product. Mainly produced in Sichuan, Hubei, Hunan and other places. late June to early August digging, remove the mother root, roots and sediment, habitually called "mud epiphyllum". It is processed and concocted into salt epiphyllum, black epiphyllum (black smooth slice), white epiphyllum, light epiphyllum, and cannon epiphyllum. It is a warming medicine. It is the "first product to restore yang and save the rebellious" in Chinese medicine. Functions: Restoring yang, tonifying fire and assisting yang, dispersing cold and relieving pain. The treatment of yin and yang, sweating and death of yang, vomiting and syncope, cold pain in the heart and abdomen, cold diarrhea, foot edema and edema of the child slow fright, wind-cold and damp paralysis, sprain and crippled contracture, impotence and cold uterus, gangrene, sores and leakage and all the cold cold and chronic cold diseases.