Acantholimon gemicianum Kaptaner Igci, Koruklu & Aytac sp. nova (Plumbaginaceae) is described and illustrated as a new species from Turkey. It grows on marl and marl-gypsum steppes. It most resembles A. strigillosum and A. turcicum, and the diagnostic morphological characters useful in distinguishing A. gemicianum are discussed. Notes on its habitat ecology and pollen morphology are provided, along with the distribution map and a key to species.