"barbata"), hornbeam ("Carpinus betulus" and "C. orientalis"), Caucasian wingnut ("Pterocarya fraxinifolia"), chestnut-leaved oak ("Quercus castaneifolia"), Caucasian oak ("Quercus macranthera"), oriental beech ("Fagus orientalis"), Persian ironwood ("Parrotia persica") and Persian silk tree ("Albizia julibrissin").