The records of conscious use of plants other than food by human races have been obliterated in remote historical past. When the “Vedas” appeared in written form, the use of plants appeared to be the first documentary evidence as curative agent. The subject ethnobotany gained importance at the beginning of 20th century. In those days, it was thought that the knowledge of plants of different ethnic people is the major source of ethnobotany. Those people had no written alphabet. It was further conceived that discourses about the uses of plants by these aborigines and ethnic people is ethnobotany. But the area of ethnobotany is deeper and wider.