A new species, Acantholimon turcicum Dogan & Akaydin (Plumbaginaceae), is described and illustrated. The species grows on calcareous mountain scree in Astragalus spp. steppe on Hazar Mountain above Sivrice (B7 Elazig). Diagnostic morphological characteristics from the closely related species are discussed and conservation status of the species is given, along with a discussion dealing with its taxonomic relationships. A revised key to the Acantholimon species with circinnate leaf basis is also provided for the species found in Turkey.