U35 Boreal and arctic base-rich inland cliff
Vegetated cliffs on base-rich (not ultramafic or salt-sprayed) bedrocks across the boreal region, including Scotland, and maybe Iceland. They are often rich in ferns, crustose lichens and, in sunless, damp situations, particularly in more oceanic areas, bryophytes.
Chytrý M., Tichý L., Hennekens S.M., Knollová I., Janssen J.A.M., Rodwell J.S. … Schaminée J.H.J. (2020) EUNIS Habitat Classification: expert system, characteristic species combinations and distribution maps of European habitats. Applied Vegetation Science 23: 648–675. https://doi.org/10.1111/avsc.12519
Version 2021-06-01, https://doi.org/10.5281/zenodo.4812736.
For the official presentation of the EUNIS Habitat Classification from the European Environment Agency, please see: EUNIS Terrestrial Habitat Classification 2021. The FloraVeg.EU presentation may show modifications and partial updates to the habitat classification.