General purpose of this lecture is to present on Tridax Procumbence; it is a Potent Blood Coagulant. Tridax procumbence is a widespread weed, commonly known as coat button in English. Tridax procumbence is a species of flowering plant in a daisy family. It occurs in tropical as well as subtropical regions, in all the seasons. It exhibits antiseptic, insecticidal and hair growth promoting properties. More commonly the plant leaves are used to check haemorrhage from cuts, brucies, wounds. It also reported to have various pharmacological effects and antimicrobial activity against bacteria, hence prevent the infection and stimulate wound healing.