Festuca borissii a spikelet, lateral view b glumes, lateral view c leaf-blade cross-section d junction of leaf sheath and blade, lateral view e distribution map f general habit. Scale bars: 10 cm (f); 1 mm (a, b, d); 0.5 mm (c). The green colour on the map refers to information on species-distribution in the region known from literature data, red points mark localities confirmed by us during revision of herbarium materials.