فهرست نشریات علمی دسترسی آزاد ایران

The aim of this research was to identify the plant species, introducing the flora, determination of life forms, and geographical distribution of alpine plants of some part of Alvand Mountain, Hamadan province. This area, with 3750 hectares, situated in north-east of Toyserkan city where the amount of annual precipitation is 420 mm and means annual temperature is 13.4°C. The altitude of this mountain is 3450 m (above sea level). The method of plant collection in this region was classical method of regional plant taxonomic studies. 400 plant samples were collected from different parts of the area between 3000-3450 m during two growing seasons 2009-2010 and are conserved in herbarium of Islamic Azad University, Boroujerd Branch and herbarium of Agricultural and Natural Resources Research Center of Hamadan Province. 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 108 identified species in high altitude of Alvand Mountain, 1 Pteridophyte, 80 dicotyledons and 27 monocotyledons are present. These species belong to 33 families and 85 genera. The important families are Asteraceae, Poaceae and Lamiaceae with 12.96%, 12.03% and 10.18%, respectively. Hemicryptophytes with 45 species (41.67%) were the most frequent life form. 65 species (60.18%) belong to Irano-Turanian region; 13 species of them were endemics of Iran which among them, distribution of 2 species (Allium breviscapum Stapf and Astragalus leucargyreus Bornm.) limited to Hamadan province.