Steppes dominated by Stipa pennata, with Festuca auquieri, Koeleria vallesiana, Brachypodium pinnatum, Ononis striata, occupying vast expanses of the Causses, and locally represented on crests and plateaux of Haute Provence, the southeastern Alps and the Corbières.
Mediterraneo-montane Stipa-rich grasslands of southern France outside of the Causses, for the most part occupying small surfaces interspersed with other formations, but sometimes constituting dominant habitats over very significant surfaces, such as the plateau of Caussols.