This book deals with 1111 species of flowering plants collected from Alappuzha district, belonging to 619 genera and 139 families. The species index is registered as 786/1000 sq.km, which is comparatively very high and indicates the richness of the floristic diversity of the district. An analysis of the flora showed that 64 species are endemic and about 145 species are rare. A total of 88 wild relatives of cultivated crop plants and 128 very important medicinal plants have also been collected from the district. Updated nomenclature, detailed description and distributional notes are provided for each species.