Fig. 3From: Low effective population size and high spatial genetic structure of black poplar populations from the Oder valley in PolandThe distribution map of black poplar trees at the studied area located near Kędzierzyn Koźle city in Poland. The red points indicate the location of black poplar trees. The green and yellow squares indicate the location of black poplar trees which share the same genotype. The blue cross indicates the location of the hybrid individual recognized as the cultivar Populus ‘Marilandica’. The location data of each studied tree are available online: https://mygeodata.cloud/map/#9678297-Black-poplar-population-KędzierzynKozleBack to article page