R4-3 - Pelouses alpines acidiphiles tempérées

Temperate acidophilous alpine grassland

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Grassland and dwarf chamaephyte vegetation on skeletal and shallow soils over predominantly siliceous bedrocks in the alpine belt throughout the temperate mountains of Europe, typical of the highest summits and ridges, often very exposed to strong winds and largely blown clear of snow in the winter.

Espèces diagnostiques

Trifolium alpinum, Potentilla aurea, Geum montanum, Carex curvula, Agrostis rupestris, Helictochloa versicolor, Scorzoneroides helvetica, Poa alpina, Veronica bellidioides, Festuca airoides, Euphrasia minima, Gentiana acaulis, Campanula scheuchzeri, Hieracium alpinum

Espèces constantes

Nardus stricta, Poa alpina, Potentilla aurea, Anthoxanthum odoratum aggr., Geum montanum, Festuca rubra aggr., Homogyne alpina, Agrostis rupestris, Campanula scheuchzeri, Avenella flexuosa, Vaccinium myrtillus, Helictochloa versicolor, Carex sempervirens, Trifolium alpinum, Scorzoneroides helvetica, Luzula spicata, Juncus trifidus, Ligusticum mutellina, Phleum alpinum aggr., Euphrasia minima

Espèces dominantes

Nardus stricta, Carex curvula, Festuca eskia

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)