Though there are many diverse patterns and motifs in Persian carpets, some of them are more common such as Shah Abbasi flowers, arabesque patterns, tree of life and vases in town carpets, and abstract forms of birds and plants and geometric shapes in rustic and tribal carpets. Also, there are specific compositions of patterns and motifs like medallion with corners, Moharamat (which has divided main background with parallel horizontal, vertical and diagonal lines), Khesti ( group of equal squares or lozenges near each other), and Mihrabi that has a dome shape in the main background.