Tall-grass perennial swards on the mobile white and embryonic coastal dunes and shingle beaches of the warm-temperate to boreal Atlantic-Baltic coasts
Vascular plants: Ammophila arenaria subsp. arenaria, Elytrigia juncea subsp. boreoatlantica, Festuca rubra, Honckenya peploides, Leymus arenarius, Sonchus arvensis subsp. arvensis, x Calammophila baltica