Supra-Mediterranean screes of Mediterranean southern France, common in the coastal ranges of the Marseille region (Allauch, Carpiagne, Puget, Marseilleveyre), rare on the Sainte-Baume, also represented in the Cévennes, with Arenaria provincialis (Gouffeia arenarioides), Ptychotis heterophylla, Linaria supina, Centranthus ruber, Centranthus lecoqii, Crucianella latifolia.