R1-H - Pelouses sèches basiphiles ibériques oroméditerranéennes

Iberian oromediterranean basiphilous dry grassland

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Grassland of base-rich soils over calcareous bedrocks on the slopes and crests of high mountains in the Iberian Peninsula and France, 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 vegetation cover, moderately open to closed, is dominated by prostrate or dwarf grasses and forbs and includes many endemics.

Espèces diagnostiques

Festuca hystrix, Poa ligulata, Koeleria vallesiana, Teucrium expassum, Helianthemum canum, Arenaria grandiflora, Oreochloa confusa, Arenaria aggregata aggr., Saxifraga conifera, Carthamus mitissimus, Dianthus pungens, Seseli montanum, Thymus mastigophorus, Thymus munbyanus, Jurinea humilis, Helianthemum apenninum, Potentilla pusilla, Festuca burnatii, Festuca marginata subsp. andres-molinae, Coronilla minima

Espèces constantes

Festuca hystrix, Koeleria vallesiana, Helianthemum canum, Anthyllis vulneraria, Seseli montanum, Poa ligulata, Coronilla minima, Helianthemum apenninum, Arenaria grandiflora, Thymus praecox, Carex humilis, Teucrium expassum, Potentilla pusilla, Sedum album, Helictochloa pratensis, Teucrium chamaedrys, Jurinea humilis, Arenaria aggregata aggr., Eryngium campestre, Dianthus pungens

Espèces dominantes

Festuca hystrix, Koeleria vallesiana

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)