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The Palang Galoun protected region, comprising 34935 hectares, is located 75 km northwest of Najaf Abad, and 102 km northwest of Isfahan city. The aim of this research was to assess the floristic spectrum, life form varieties, chorological analysis, determination of protected status and identification of medicinal, threatened species criteria and poisonous plants of this natural heritage. Plant samples were collected during different vegetative seasons at several stages. Life forms of samples were determined and chorological analysis was performed. On the basis of the obtained results, a total of 166 species belonging to 126 genera and 39 families were identified. Six families, 23 genera and 26 species belonged to monocotyledons, whereas 33 families, 103 genera and 140 species belonged to dicotyledons. In terms of chorological analysis, 58% of plant species were distributed in the Irano-Turanian region. It is noteworthy that 44 endemic species, 97 medicinal species, 48 pasture species and 23 poisonous species were present in the studied area. Life forms were found to comprise 54% hemicryptophytes, 24% therophytes, 10% geophytes, 7% chamaephytes and 5% phanerophytes. Based on IUCN red list categories and criteria, there were 22 species in the lower risk category and seven species categorized as vulnerable case.
 

Keywords: endemic, geographical distribution, Irano-Turanian, medicinal, natural resources

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