U2-7 - Éboulis riches en bases planitiaires à montagnards des zones tempérées

Temperate, lowland to montane base-rich scree

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Screes of mostly coarse, unstabilized material derived from calcareous and dolomitic bedrocks in the lowlands, foothills and sub-montane zone of temperate Europe. Vegetation can be completely lacking, but rock surfaces can have bryophyte and lichen communities and, where crevices accumulate soil, the vascular plant component can be diverse and lush. Natural succession following stabilization of screes allows encroachment of shrubs and trees, vegetation not included in this habitat.

Espèces diagnostiques

Microrrhinum minus, Galeopsis angustifolia

Espèces constantes

Euphorbia seguieriana, Vincetoxicum hirundinaria, Microrrhinum minus, Galeopsis angustifolia, Euphorbia cyparissias

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)