Conducted research work concentrating on plant diversity, especially flowering plants and its documentation as biodiversity documentation is a part of biodiversity conservation which in turn forms part of Conservation Biology. According to Global Strategy for Plant Conservation, the first step for plant conservation is the documentation of all known plants. Knowledge about the bio-resources of our nation and its present status is important. It can give priority for studies on conservation of species and areas. It was against this background that a comprehensive account on the plant wealth of Kerala, the Western Ghats, India, was brought out.