U3-A - Falaises continentales ultramafiques tempérées

Temperate ultramafic inland cliff

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Warmer south-facing cliffs of ultramafic rocks from the lowlands to the alpine belt of the temperate zone. They have an open cover of a distinctive crevice-rooting flora, mostly annuals, grasses and certain ferns, specialized for the mineral content of the shallow soils. The habitat supports some endemic plants.

Espèces diagnostiques

Asplenium adiantum-nigrum subsp. serpentini, Asplenium adulterinum, Paragymnopteris marantae, Daphne malyana, Polygonum setosum, Barbarea brachycarpa, Micromeria croatica, Ranunculus buhsei, Bryum capillare group, Hedysarum macedonicum, Bornmuellera dieckii, Hieracium waldsteinii, Festuca pallens, Stipa novakii, Erysimum linariifolium, Moltkia petraea, Anomodon attenuatus, Lomelosia rotata

Espèces constantes

Asplenium adiantum-nigrum subsp. serpentini, Paragymnopteris marantae, Thymus praecox, Asplenium adulterinum, Silene vulgaris, Festuca pallens, Campanula rotundifolia, Thymus pulegioides, Taraxacum sect. Taraxacum, Poa pratensis aggr., Poa badensis aggr., Plantago holosteum, Minuartia verna aggr., Hypnum cupressiforme aggr., Festuca ovina, Asplenium trichomanes, Asplenium ruta-muraria, Achillea millefolium aggr.

Espèces dominantes

Paragymnopteris marantae, Asplenium adiantum-nigrum subsp. serpentini

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)