U3-7 - Falaises continentales riches en bases, planitiaires à montagnardes des zones tempérées

Temperate, lowland to montane base-rich inland cliff

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Calcareous or base-rich rock faces and crevices of the lowland to montane belts of European mountains in the temperate region. Though conditions are not so severe as at higher altitudes, plant species growing on these rocks are adapted to extreme habitat conditions, such as strong solar radiation, a low water content, strong fluctuations in day/night and seasonal temperature, strong winds, absence of snow cover, and poorly developed soil. Many endemic and rare species occur here.

Espèces diagnostiques

Asplenium ruta-muraria

Espèces constantes

Asplenium ruta-muraria, Sanguisorba minor aggr., Asplenium trichomanes, Campanula rotundifolia, Euphorbia cyparissias, Asperula cynanchica, Sesleria caerulea, Sedum album

Bibliography

 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)