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Biotope - Typologie Européenne EUNIS
E1.272 - Niveau 5 : Pelouses médio-européennes du Xerobromion
Description
Formations of southern Belgium, Germany, France, Switzerland, northern Spain and the northern Apennines. Where they occur in the vicinity of communities of the Festucetalia valesiacae, the latter occupy sites with more continental microclimates than those inhabited by the formations of this group.
Taxons (Liens actifs si espèces présentes)
E1.272G - Niveau 6 : Xerobromion pyrénéen
Description
Hill and montane xerophile calcareous grasslands of the Pyrenees and adjacent areas; in the pubescent oak level of the eastern part of the range Xerobromion grasslands with Koeleria vallesiana, Festuca ovina s.l. and Bromus erectus come in contact with Aphyllanthion formations occupying more humid soils and closed postcultural Brachypodium grasslands of the Brachypodion phoenicoides. On the south side of the range, xerophile pastures are represented in lower zones and on sheletered sunny slopes by communities of the Aphyllanthion, of decidedly Mediterranean hue, while the formations of the Xerobromion, of more Euro-Siberian character, occupy the other situations. Chamaephytes such as Helianthemum nummularium, Artemisia alba, Teucrium pyrenaicum, Ononis spinosa, Ononis natrix are abundant alongside the gramineous Phleum phleoides, Festuca ovina s.l., and Carex humilis.
Taxons (Liens actifs si espèces présentes)
Artemisia alba Turra, 1764 ( Esp. caract. )
Brachypodium P.Beauv., 1812 ( Esp. caract. )
Festuca ovina L., 1753 ( Esp. caract. )
Helianthemum nummularium (L.) Mill., 1768 ( Esp. caract. )
Koeleria vallesiana (Honck.) Gaudin, 1808 ( Esp. caract. )
Ononis natrix L., 1753 ( Esp. caract. )
Ononis spinosa L., 1753 [nom. et typ. cons.] ( Esp. caract. )
Phleum phleoides (L.) H.Karst., 1880 ( Esp. caract. )
Teucrium pyrenaicum L., 1753 ( Esp. caract. )
Brachypodium P.Beauv., 1812 ( Esp. caract. )
Festuca ovina L., 1753 ( Esp. caract. )
Helianthemum nummularium (L.) Mill., 1768 ( Esp. caract. )
Koeleria vallesiana (Honck.) Gaudin, 1808 ( Esp. caract. )
Ononis natrix L., 1753 ( Esp. caract. )
Ononis spinosa L., 1753 [nom. et typ. cons.] ( Esp. caract. )
Phleum phleoides (L.) H.Karst., 1880 ( Esp. caract. )
Teucrium pyrenaicum L., 1753 ( Esp. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)
Faible
Forte
— nb espèces indicatrices par classe
Humidité
Réaction du sol (pH)
Nutriments
Lumière
Matière organique
Granulométrie
Salinité