C2.1Niveau 3Sources, ruisseaux de sources et geysers
↑ Niveau supérieur Description
Springs and resurgences, together with animal and plant communities dependent on the peculiar microclimatic and hydrological situation created by them. Excludes vegetated spring mires (D2.2, D4.1), where springs emerge through a (usually small) expanse of vegetation with little or no open water.
Taxons associés
Aucun taxon référencé.
C2.12Niveau 4Sources d'eau dure
Habitat sélectionné Description
Springs rich in calcium, typically due to calcareous tufa formation. Species-rich habitats with high moss cover, high dominance of moss Cratoneuron commutatum is typical. The stands belong to alliances Cratoneurion commutati and Lycopodo-Cratoneurion commutati with typical species Arabis soyeri, Saxifraga aizoides, Viola biflora, Cochlearia pyrenaica, Bryum pseudotriquetrum, Conocephalum conicum, Eucladium verticillatum and Palustriella commutata.
Taxons associés
Arabis soyeri Reut. & A.L.P.Huet, 1853Esp. caract.Bryum pseudotriquetrum (Hedw.) G.Gaertn., B.Mey. & Scherb., 1802Esp. caract.Cochlearia pyrenaica DC., 1821Esp. caract.Conocephalum conicum (L.) Dumort., 1822Esp. caract.Cratoneuron commutatum (Hedw.) G.Roth, 1899Esp. caract.Eucladium verticillatum (With.) Bruch & Schimp., 1846Esp. caract.Palustriella commutata (Hedw.) Ochyra, 1989Esp. caract.Saxifraga aizoides L., 1753Esp. caract.Viola biflora L., 1753Esp. caract.