The Pathanamthitta District consists of three natural divisions viz., the lowlands, midlands, and highlands. The topography of the district is highly undulating with hills and valleys. The vegetation is divided into 3 categories such as lowland vegetation, midland vegetation and upland vegetation. The flora presents a systematic account of a total of 1249 species belonging to 658 genera of 148 families of seed plants. The species index is registered as 460/1000 ...
