The botanical account of the protected areas is important for the conservation and management of biodiversity and ecosystem. The Pabitora Wildlife Sanctuary is one of such protected area in Assam in North Eastern India. The area is famous for the highest density of the Indian one-horned Rhinoceros in the world. The sanctuary is also well known for its wetland habitat which provides the suitable site for migratory birds and fish fauna. The present study highlights the floristic wealth of the sanctuary which is the outcome of the intensive botanical collection and observation for the period of four year from 1995 to 1998. The present book presents the botanical accounts, phytogeography, vegetation and ecosystem of the sanctuary. It covers 724 species under 492 genera 142 families of vascular plants. The work also focus the pattern of floristic diversity, phenology of some common plants with a brief account of fodder plants, medicinal, economically important plants, rare and endemic plants etc of the area. The study based on the revised taxonomic monographic work and recent taxonomic nomenclature.'