Ferula caspica and Ferula szowitsiana grow in the same area of Central Anatolia. According to Flora of Turkey, they can be easily confused for one another during the flowering time. In this study, morphological and anatomical features of these two species were examined in order to reveal their differences. Leaves, flowers and fruits of these two species were examined and necessary measurements were made. The proliferation in the inflorescence of F. caspica, was not observed in the species F. szowitziana. There were distinct morphological differences in the fruits, also, the numbers of the secretory channels were different in the anatomical sections of mericarps. Morphological differences were observed in leaf lobes of these two species. As a result, the data that can be used to distinguish between these species are shown.