R1-J - Pelouses sèches siliceuses oroméditerranéennes cyrno-sardes

Cyrno-Sardean oromediterranean siliceous dry grassland

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Grassland of base-poor soils over siliceous bedrock on the slopes and crests of high mountains in Corsica and Sardinia, with a short growing season and harsh winters when strong winds blow the ground free of snow and leave the surface subject to deep cold which encourages the development of freeze-thaw features. The cover of vegetation is intermediate to complete, dominated by prostrate herbs, cushion plants and dwarf shrubs, and includes many endemics.

Espèces diagnostiques

Cerastium soleirolii, Sagina pilifera, Galium corsicum, Genista lobelii, Hypochaeris robertia, Poa balbisii, Carlina macrocephala, Plantago subulata, Ligusticum corsicum, Thymus herba-barona, Pilosella soleiroliana, Stachys corsica, Bellium bellidioides, Armeria sardoa, Pilosella lactucella, Festuca morisiana, Hypochaeris cretensis, Anthyllis hermanniae, Sesamoides minor, Berberis aetnensis

Espèces constantes

Cerastium soleirolii, Sagina pilifera, Rumex acetosella, Hypochaeris robertia, Plantago subulata, Juniperus communis subsp. nana, Genista lobelii, Carex caryophyllea, Thymus herba-barona, Nardus stricta, Galium corsicum, Agrostis castellana, Sedum brevifolium, Poa bulbosa, Poa balbisii, Petrorhagia saxifraga, Carlina macrocephala, Bellium bellidioides, Avenella flexuosa, Stachys corsica

Espèces dominantes

Sagina pilifera, Plantago subulata, Carex caryophyllea, Thymus catharinae, Genista lobelii, Festuca morisiana, Brachypodium pinnatum

Bibliographie

 European Topic Centre on Biological Diversity, 2021. EUNIS terrestrial habitat classification 2021 including crosswalks. ETC/BD-EEA. Table Excel transmise par S. Hennekens (Alterra) le 14/02/2022. (Source)