R1-E - Pelouses sèches vivaces hautes méditerranéennes

Mediterranean tall perennial dry grassland

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Grassland on base-rich soils over various types of calcareous bedrock through the Mediterranean region, where grazing and trampling sustain open or closed swards, generally dominated by tall, dense tussock grasses that lend a steppe-like character. Summer drought and disturbance by grazing and burning help prevent reversion to a forest but can encourage the invasion of aliens.

Espèces diagnostiques

Macrochloa tenacissima, Helictotrichon filifolium, Lygeum spartum, Teucrium pseudochamaepitys, Brachypodium retusum

Espèces constantes

Dactylis glomerata, Brachypodium retusum, Reichardia picroides, Eryngium campestre, Sedum sediforme, Lygeum spartum, Daucus carota, Thymus vulgaris, Carlina corymbosa aggr., Hyparrhenia hirta, Bituminaria bituminosa, Macrochloa tenacissima, Linum strictum aggr., Helictochloa bromoides, Asphodelus ramosus, Pallenis spinosa, Koeleria vallesiana, Teucrium polium aggr., Foeniculum vulgare, Brachypodium phoenicoides

Espèces dominantes

Lygeum spartum, Brachypodium retusum, Macrochloa tenacissima, Hyparrhenia hirta, Brachypodium phoenicoides

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)