Gravel beach communities of the mediterranean region

Very open, low formations of annuals and perennials of Mediterranean gravel and shingle beaches, occupying accumulations of drift material, sandy gravels and gravels rich in nitrogenous organic matter; characteristic are [Cakile maritima], [Enarthrocarpus arcuatus], [Salsola kali], [Atriplex] spp., [Polygonum] spp., [Glaucium flavum].