The taxonomic status of the genus Secale L. in Iran was reviewed. Morphological and taxonomic aspects of the taxa belonging to the genus were studied based on a total number of 50 accessions and 104 herbarium sheaths from a wide range of distribution of the genus in Iran. The results of this study showed that the genus Secale occurs in Iran with two species: 1- Secale cereale L. subsp. cereale and subsp. ancesterale Zhuk., and 2- Secale strictum (C. Presl) C. Presl subsp. strictum var. strictum and var. ciliatiglume (Boiss.) Fred. & G. Petersen.