Introduction of Flora, Biodiversity and Geographical Distribution of Plants in the Western Region of Ludab in Kohgiluyeh and Boyerahmad Province

Floristic studies of any regions have high importance, because the floristic list is an exploration document to identify the existent species and consequently the potential of the area.West Loodab region with an area around 20000 hectares is located in Zagros mountain in 120 Km northwest of Yasouj of Kohgilooyeh and Booyerahmad province between 30º 50′ and 31º 08′ north latitudes and 50º 40′ and 50º 59′ east longitudes. Due to having extreme difference in elevation, this region have different climates and outstanding biodiversity. Collection of specimens was performed from February of 2014 to August 2016. 249 species belonging to 164 genera and 60 families were identified. The largest families were Asteraceae (37 taxa), Fabaceae (28 taxa) and Lamiaceae (22 taxa) and the most diverse genera included Euphorbia with 8 species, Astragalus with 7 species and Salvia with 6 species respectavily. According to Raunkiaer’s classification, plants in this region were hemicryptophytes (41.78%), therophytes (27.71%), phanerophytes (12.85%), geophytes (12.45%), chamaephyts (4.41%) and parasite (0.81%) were life form in this area. A consideable number of species (53%) belonged to Irano-Toranian phytogeographycal region. For this region 49 poisonous, 38 rare, 56 medicinal and 45 endemic speices identified.