The pursuit for good health has been a continuous process for human beings since ages. This knowledge is mainly gathered by the people in the form of traditions and experiences and is inherited over the centuries to the future generations. It is extremely important to save this traditional knowledge of biological heritage and explore new resources. However excessive and unsystematic use of bio-resources for medicinal purposes by the pharmaceutical, cosmetic and perfume industries have caused their depletion and threatened many valuable plant resources. Study areas, in the Northwest Himalaya...