Turboveg for Windows is a comprehensive database management system designed for the storage, selection, and export of vegetation data (relevés). The standard structure of the databases is fixed, but you can easily extend it by defining extra fields to fit your own needs. You can extend both the header data (e.g. a field for soil type) and the species data (e.g. add a field for the phenology of the species). Each database can have its own extension.