The use of plants to treat diverse ailments is a practice that evolved with man and millions of people worldwide use herbal remedies and drugs discovered through study of traditional cures and folk knowledge. The patronage of botanicals is on the increase worldwide based on perceived efficacy and safety. In realization of the inherent value of herbal medicines to primary health care and the fact that over three quarters of the world's population rely mainly on plants for health care, the WHO has advocated for proper identification, sensible exploitation, scientific development and appropriate...