Additions to the flora of vascular plants of the Pojezierze Zachodniosuwalskie lakeland (NE Poland)

The aim of this work was to supplement the flora of vascular plants of the Pojezierze Zachodniosuwalskie lakeland, a mesoregion in north-eastern Poland, with new records from 2019–2024. Distribution data, mainly for rare and new taxa in the region, were collected based on field inventories using the ATPOL cartogram method. The floristic list presents 45 taxa of vascular plants, including seven taxa new for the flora of the mesoregion. The red list status and establishment of selected species in the regional flora are briefly discussed.