Sedges of Goa contains an up-to-date taxonomic account of family Cyperaceae in Goa. Taxonomy of 111 taxa comprising 100 species, three subspecies and eight varieties belonging to 16 genera has been discussed. In addition to the taxonomy, achene morphology of 71 selected taxa has been studied using Light Microscope and Scanning Electron Microscope (SEM) and the findings have been discussed. Information on the habitat, flowering and fruiting season, distribution at global level, in India and within the state, and details of the specimens examined for each taxon are provided. Line drawings and photographs of selected taxa are also provided for easy identification. The uniqueness of the book is the information of achene micromorphology, not usually found in Floras.