Author(s): Samydurai Ponnusamy, Rajendran Arumugam, Sarvalingam Ariyan and Rajasekar Chinnaiyan

Abstract: Andrographis Wall ex Nees, is a large genus of herbs with greater species diversity occurring in the southern Western Ghats. Among the different species of Andrographis, the present study provides the ethnobotanical data of 9 rare, endemic/endangered species collected from the Nilgiris of the southern Western Ghats. The nine species show narrow distributional range and are vulnerable to unsustainable utilization. This study provided data on diversity, distribution and habitats for conservation and prioritization of the valuable species.