Among native species are hornbeam Carpinus caucasica, lime Tilia caucasica, T . cordata, beech Fagus orientalis, elm Ulmus elliptica, U . scabra, U . foliacea, oak Quercus macranthera, Q . iberica, Q . longipes, pine Pinus harmata and pear Pyrus communis ( note : Armenia is an important centre of pear diversity with over 20 known species ).
12.
Three species account for the vast majority of edible fruit production, the European pear " Pyrus communis " subsp . " communis " cultivated mainly in Europe and North America, the Chinese white pear ( " bai li " ) " Pyrus �bretschneideri ", and the Nashi pear " Pyrus pyrifolia " ( also known as Asian pear or apple pear ), both grown mainly in eastern Asia.
