Boreal and arctic siliceous inland cliff
Siliceous rock faces and cliffs, mostly of hard crystalline rocks, soft mica schist and some volcanics, in the boreal and arctic biogeographical regions, though not including sea cliffs with salt spray influence or very wet, dripping vertical rock faces. The vegetation consists of a limited vascular flora growing in crevices and on ledges, with epilithic bryophytes, lichens as well as micro-algae on rock faces, overhangs and in all kinds of sheltered microsites. Although the rock types are all base-poor, they show marked variation in their chemical composition and stratigraphy and can harbour a great diversity of vascular plants and cryptogams in many different assemblages, differentiated into many microhabitats.
Código Eunis 2021: U31
Correspondencia con códigos EUNIS 2012
| Tipo de relación | Código EUNIS 2012 |
|---|---|
| < | H3.1 |
Hábitats de la Directiva Hábitats asociados
| Tipo de relación | Hábitat del Anexo I de la Directiva Hábitats |
|---|---|
| < | 8220. Pendientes rocosas silíceas con vegetación casmofítica |