Flora, life form and chorology of Dehgin basin, Hormozgan Province

The Dehgin reagent and paired basin with 4.2 Km2 is located in geographic coordinates of 57 12 29 to 57 11 25 eastern longitude and 27 46 6 to 27 44 21 north latitude. In this study, 190 plant species were collected and introduced. These species belong to 50 families (1 family of Angiospermae, 47 families of Dicotyledone and 2 families of Monocotyledone) and 149 genera. Compositae with 23 species, Papilionaceae with 18 species and Gramineae with 20 species are main families of this region. Studing of plants life forms by Raunkier method showed that Therophytes with 41 and Hemichryptophytes with 18 percent of species are the most frequent life forms. Phanerophytes with 14 percent and Chamaephytes with 16 percent are other life forms. High percentage of Therophytes indicates that the area has dry and deserty climate. Investigation on geographical distribution of plants species showed 26 percent (49 species) of species belong to Saharo-Sindian,12 percent (22 species) to Irano-Touranian and 3 percent (5 species) to Cosmic zones. 60 species were medicinal plants that 15 species had high heath care.