“…Quercus L. species have a high level of intraspecific variability of morphometric parameters of leaves, which can vary significantly in different individuals within the same population or even one tree and depend on seasonal and ontogenetic changes (Jensen et al, 1993;Penas et al, 1994;Bruschi et al, 2003;González-Rodríguez and Oyama, 2005;Nikolić et al, 2005). In particular, the variability of the morphological and anatomical features of Q. robur (Borazan and Babaç, 2003;Nikolić et al, 2005Nikolić et al, , 2006Boratynski et al, 2008;Kryvoruchko and Bessonovа, 2018;Martins et al, 2022) and Q. rubra (Jensen et al, 1993;Ashton and Berlyn, 1994;Nagel et al, 1998;Kryvoruchko andBessonovа, 2017, 2018) leaf structure is shown in different growing conditions (moisture, lighting, increased UV radiation, influence of urban technogenic conditions).…”