Biotope - Typologie Européenne EUNIS

E1.26 - Niveau 4 : Pelouses semi-sèches calcaires subatlantiques
Description
Taxons (Liens actifs si espèces présentes)
Anthyllis vulneraria L., 1753, Avenula pubescens (Huds.) Dumort., 1868, Brachypodium pinnatum (L.) P.Beauv., 1812, Briza media L., 1753, Bromus erectus Huds., 1762, Carex caryophyllea J.F.Gmel., 1791 [nom. illeg. hom.], Carex flacca Schreb., 1771, Carlina vulgaris L., 1753, Centaurea scabiosa L., 1753, Cirsium acaule (L.) All., 1780, Dianthus deltoides L., 1753, Euphorbia brittingeri Opiz ex Samp., 1914, Euphorbia verrucosa L., 1753, Euphrasia stricta Host, 1831, Festuca guestfalica Boenn. ex Rchb., 1830, Festuca lemanii Bastard, 1809, Festuca rupicola Heuff., 1858, Galium verum L., 1753, Gentianella germanica (Willd.) Börner, 1912, Hippocrepis comosa L., 1753, Koeleria pyramidata (Lam.) P.Beauv., 1812, Medicago lupulina L., 1753, Ononis repens L., 1753, Potentilla neumanniana Rchb., 1832, Potentilla tabernaemontani Asch., 1891, Potentilla verna L., 1753 [nom. et typ. cons.], Ranunculus bulbosus L., 1753, Scabiosa columbaria L., 1753, Sesleria albicans Kit. ex Schult., 1814, Trifolium montanum L., 1753 [p. 772] [nom. illeg. hom.], Viola hirta L., 1753,
E1.263 - Niveau 5 : Pelouses médio-européennes semi-sèches à Brachypodium
Description
Brachypodium pinnatum ssp. pinnatum or Brachypodium pinnatum ssp. rupestre facies of unit E1.262. Geographical subdivisions are given by level 6 units E1.2621 - E1.262L . Brachypodium-dominated facies may form in all the regional types of grasslands inventoried in unit E1.262 as a result of nitrification or of dominance of grazing over mowing. Such processes are accompanied by a drastic reduction in species diversity. South western grasslands of sub units H to K of E1.262 and of E1.263 are, however, generally rich in Brachypodium even in the apparent absence of degradation processes.
Taxons (Liens actifs si espèces présentes)
Analyse Ecologie du milieu (En fonction des espèces présentes)