Cotoneaster Medik. is an important and taxonomically complex group due to numerous variable forms. Therefore, it interesting object for taxonomical studies. Five new records, including transcaucasicus Pojark., C. minutus G. Klotz, afghanicus aitchisonii K. Schneid., ellipticus Hort ex Loudon are identified the first time from Iran. Moreover, meyeri Pojark. insignis reported second Flora of Iran...