EN
Chrysanthemum segetum is a rare species in Poland, which is within the easternmost extent of its range. The species is an anthrophyte that is not native to Poland. The aim of the present study was to determine the the present-day distribution of the species on the basis of field investigation, revised herbarium materials, review of the literature, and both published and unpublished data. Altogether, the species was found at 281 sites in 92 ATPOL squares in Western Pomerania.