A stand of Pterocarya fraxinifolia, hitherto unknown to science, is reported from the central Zagros mountains in the Irano-Turanian part of Iran, at an altitude of 1730 m, far disjunct from the populations at the Caspian Sea and in the Van area in SE Turkey. It has long been protected by the local people, who believe that cutting these trees is inauspicious. Structure, size and phytogeographical importance of the stand is discussed and its protection, along with nearby gigantic Platanus orientalis, as a national natural monument suggested.
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