Report 2020 on plant biodiversity in Italy: native and alien vascular flora

This paper provides an updated overview, based on nomenclatural, taxonomical and distribution data, on the native and alien vascular flora of Italy, with details on the occurrence at national and regional administrative level. Recently described taxa occurring in Italy, which were not included in the checklists published in 2018, are listed. The list of extinct or possibly extinct native taxa and that of alien taxa of EU concern are updated.