Investigating the Flora, Life Form, Chorology, and Conservation Classes of Plants in Garin Mountain, Delfan County- Lorestan Province

This study aimed to investigate the flora, life form, Chorology, and exclusive plants and their conservation class of plants in Garin Mountains Delfan County, Lorestan province. First, the plant samples observed in the area during the growing season were collected, and based on the common methods of plant taxonomy, the family, genus, and species of each of them were determined. Then, based on the classification of the International Union for Conservation of Nature (IUCN) and Red Data Book of Iran, the Conservation classes of plants in the region were investigated. The results of this research indicated 212 species belonging to 150 genera and 46 families. The results showed that the largest families in terms of the number of species are Asteraceae with 34 species (16.04%), Lamiaceae with 30 species (14.15%), Poaceae with 29 species (13.68%), Brassicaceae with 22 species (10.38%), Fabaceae with 19 species (8.96%), and Apiaceae with 10 species (4.72%). The life forms of the plants in the region, which were determined based on Raunkiaer’s classification, include hemicryptophytes (42.92%), therophytes (35.85%), geophytes (10.85%), phanerophytes (5.66%), and chamaephytes (4.72%). In terms of geographical distribution, 51% of the species were from Iran-Turani elements. By reviewing Iran's rare exclusive species in the region, two types of conservation classes were identified for them, which include the Lower Risk (LR) with 14 species and Endangered (En) with one species.