A TAXONOMIC REVIEW OF THE HORDEUM MARINUM SENSU LATO (POACEAE: TRITICEAE) IN IRAN

This study concerns the taxonomic status of Hordeum marinum sensu lato in Iran. Its geographical distribution in Iran has been reported. Based on the morphological study, the taxon contains two subspecies: marinum and gussoneanum (Parl.) Thell. in Iran. Morphological descriptions along with a key separating the two subspecies are provided. Furthermore, morphological variations of the subspecies of Hordeum marium Hudson in various habitats have been studied. In order to facilitate identifications, three photographs and drawings illustrating the herbarium specimens have been provided.