Weathered rock and outcrop habitats
Common name:
Weathered rock and outcrop habitats
Habitat code:
H3.6
Description:
Rocks and outcrops colonized by pioneer communities, especially of [Crassulaceae]. The substrates are mostly siliceous, occurring in the alpine or montane levels of higher mountains of the nemoral zone. The communities are dominated by succulent [Sempervivum arachnoideum ssp. arachnoideum], [Sempervivum arachnoideum ssp. tomentosum], [Sempervivum montanum ssp. montanum], [Sempervivum montanum ssp. stiriacum], [Sempervivum wulfenii], [Jovibarba arenaria], [Sedum montanum], [Sedum anglicum ssp. pyrenaicum], [Sedum sexangulare], [Sedum album], [Sedum annuum], [Saxifraga aspera], accompanied by [Silene rupestris], [Scleranthus polycarpos], [Veronica fruticans], [Thymus praecox ssp. polytrichus], [Viola tricolor ssp. saxatilis], by small crucifers, lichens and mosses.
References:
Hill, M.O., Moss, D. & Davies, C.E., 2004
| Important species scientific name | Corresponding species comments |
|---|---|
| Primula pedemontana ssp. apennina (Widmer, 1891) Kress, 1981 | Annex II species - habitat relation; source Unit of Vegetation Science, Lancaster, 2000 |
| Ammi trifoliatum (H.C.Watson) Trel. | Annex II species - habitat relation; source Unit of Vegetation Science, Lancaster, 2000 |
| Artemisia eriantha Ten., 1831 | Annex II species - habitat relation; source Unit of Vegetation Science, Lancaster, 2000 |
| Artemisia genipi Weber | Annex II species - habitat relation; source Unit of Vegetation Science, Lancaster, 2000 |
| Leuzea centauroides (L.) Holub | Annex II species - habitat relation; source Unit of Vegetation Science, Lancaster, 2000 |
| Scleranthus annuus ssp. polycarpos (L.) Thell. | Species mentioned in habitat definition as characterising |
| Silene rupestris L. | Species mentioned in habitat definition as characterising |
| Sedum album Linnaeus, 1753 | Species mentioned in habitat definition as characterising |
| Sedum anglicum ssp. pyrenaicum Lange | Subspecies mentioned in habitat definition as characterising |
| Sedum annuum L. | Species mentioned in habitat definition as characterising |
| Sedum montanum E.P.Perrier & Songeon | Species mentioned in habitat definition as characterising |
| Sedum sexangulare Linnaeus, 1753 | Species mentioned in habitat definition as characterising |
| Sempervivum arachnoideum ssp. arachnoideum L. | Subspecies mentioned in habitat definition as characterising |
| Sempervivum arachnoideum ssp. tomentosum (C.B.Lehm. & Schnittsp.) Schinz & Thell. | Subspecies mentioned in habitat definition as characterising |
| Sempervivum montanum ssp. montanum L. | Subspecies mentioned in habitat definition as characterising |
| Sempervivum montanum ssp. stiriacum Wettst. ex Hayek | Subspecies mentioned in habitat definition as characterising |
| Sempervivum wulfenii Hoppe ex Mert. & W.D.J.Koch | Species mentioned in habitat definition as characterising |
| Thymus praecox ssp. polytrichus (A.Kern. ex Borbà s) Jalas | Subspecies mentioned in habitat definition as characterising |
| Androsace pyrenaica Lam. | Annex II species - habitat relation; source Unit of Vegetation Science, Lancaster, 2000 |
| Saxifraga aspera L. | Species mentioned in habitat definition as characterising |
| Saxifraga florulenta Moretti | Annex II species - habitat relation; source Unit of Vegetation Science, Lancaster, 2000 |
| Veronica fruticans Jacq. | Species mentioned in habitat definition as characterising |
| Jovibarba globifera ssp. arenaria (W.D.J.Koch) J.Parn. | Species mentioned in habitat definition as characterising |
| Legal instrument | Habitat type legal name | Habitat type legal code |
|---|---|---|
| EU Habitats Directive Annex I | Siliceous rock with pioneer vegetation of the Sedo-Scleranthion or of the Sedo albi-Veronicion dille | 8230 |
| EUNIS Code | Type Name | Name |
|---|---|---|
| H3.61 | Bare weathered rock and outcrop habitats | Bare weathered rock and outcrop habitats |
| H3.62 | Sparsely vegetated weathered rock and outcrop habitats | Sparsely vegetated weathered rock and outcrop habitats |