34.332 - Niveau 5 : Pelouses médio-européennes du Xerobromion
Description
Formations of southern Belgium, Germany, France, northern Spain and the northern Apennines. Where they occur in the vicinity of communities of the Festucetalia valesiacae, the latter occupy cites with more continental microclimates than those inhabited by the formations of this group.
34.3325 - Niveau 6 : Xerobromion du Bassin parisien jurassique
Description
Xerophile grasslands of the north-eastern, eastern and south-eastern Jurassic belt of the Paris basin and adjacent Cretaceous areas in Lorraine, Champagne, Haute Marne, Burgundy, Haute Saône.