Quantitative morpho-anatomical features of leaves nine Clematis taxa (C. alpina ‘Pamela Jackman’, C. macropetala ‘Maidwell Hall’, integrifolia ‘Aljonushka’, ispahanica ‘Zvezdograd’, fargesii ‘Paul Farges’, texensis ‘Princess Diana’, tibetana, viticella, and heracleifolia) were determined with the aim to analyze their adaptation environmental conditions.Among investigated clematises, there plant...