Floristic study in Nova (Noor) Mountain, Kermanshah province

The aim of this research was to identify the plant species, introducing the flora, determination of life forms, and plant geographical distribution of Nova Mountain, Kermanshah province. This area is locate in south west of Kermanshah province with 7000 hectares, where the amount of annual precipitation is 348.1 mm and means annual temperature is 13.7°C. The altitude of this mountain is 2500 m (above sea level). The method of plant collection in this region was classical method of regional plant taxonomic studies. 800 plant samples were collected from different parts of the area between 1600-2500 m during two growing seasons 2010-2011 and are deposited in herbarium of Islamic Azad University, Boroujerd Branch and herbarium of Kermanshah Agricultural and Natural Resources Research and Education Center. The life form of plant species was determined by using of Raunkiaer’s method. The position of this area within Iran’s phytogeography classification was studied based on geographical distribution data and references. From 177 identified species in Nova Mountain, 136 dicotyledons and 41 monocotyledons are present. These species belong to 37 families and 129 genera. The important families are Fabaceae, Asteraceae and Poaceae with 16.69%, 16.69% and 11.86%, respectively. Therophytes with 69 species (38.98%) were the most frequent life form. 97 species (54.8%) belong to Irano-Turanian region; 8 species of them were endemics of Iran.