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Biotopes & milieux

Biotope - Typologie CORINE

36.34 - Niveau 4 : Pelouses à laîche courbée et communautés apparentées
Description
Mostly closed Carex curvula, Festuca spp., Oreochloa spp. or Juncus trifidus grasslands on siliceous soils of the alpine level of the Alps and the Pyrenees, with very local outposts in the great Hercynian ranges and the Cantabrian Range. Androsace obtusifolia, A. carnea ssp. laggeri, Campanula barbata, Juncus jacquinii, J. trifidus, Silene exscapa, Gentiana alpina, Achillea erba-rotta, Euphrasia minima, Luzula lutea, L. spicata, L. hispanica, Lychnis alpina, Minuartia recurva, M. sedoides, Pedicularis kerneri, P. pyrenaica, Phyteuma globulariifolium, Ph. hemisphaericum, Potentilla frigida, Armeria alpina, Senecio incanus, Trifolium alpinum, Veronica bellidioides, Ranunculus pyrenaicus are characteristic.
Taxons (Liens actifs si espèces présentes)
Agrostis rupestris All., 1785, Alopecurus alpinus Vill., 1786, Androsace obtusifolia All., 1785, Antennaria carpatica (Wahlenb.) Bluff & Fingerh., 1825, Antennaria dioica (L.) Gaertn., 1791, Campanula scheuchzeri Vill., 1779, Carex curvula subsp. rosae Gilomen, 1937, Carex myosuroides Vill., 1779, Carex parviflora Host, 1801, Carex sempervirens subsp. sempervirens Vill., 1787, Erigeron uniflorus L., 1753, Euphrasia minima Jacq. ex DC., 1805, Festuca halleri All., 1785, Festuca quadriflora Honck., 1782, Festuca violacea Ser. ex Gaudin, 1808, Geum montanum L., 1753, Gnaphalium supinum L., 1768, Helictochloa versicolor (Vill.) Romero Zarco, 2011, Juncus jacquinii L., 1767, Juncus trifidus L., 1753, Leucanthemopsis alpina (L.) Heywood, 1975, Luzula lutea (All.) DC., 1805, Luzula spicata (L.) DC., 1805, Minuartia sedoides (L.) Hiern, 1899, Myosotis alpestris F.W.Schmidt, 1794, Pachypleurum mutellinoides (Crantz) Holub, 1983, Phyteuma globulariifolium subsp. pedemontanum (Rich.Schulz) Bech., 1956, Pilosella glacialis (Reyn. ex Lachen.) F.W.Schultz & Sch.Bip., 1862, Plantago alpina L., 1753, Polygonum viviparum L., 1753, Potentilla aurea L., 1756, Potentilla grandiflora L., 1753, Salix herbacea L., 1753, Saxifraga bryoides L., 1753, Sedum alpestre Vill., 1779, Sempervivum montanum L., 1753, Senecio incanus L., 1753, Silene acaulis (L.) Jacq., 1762, Soldanella alpina L., 1753, Trifolium alpinum L., 1753, Veronica bellidioides L., 1753,
36.341 - Niveau 5 : Pelouses à Carex curvula
Description
Formations of the upper and middle alpine levels of the Alps, of the upper alpine level of the eastern Pyrenees and of the alpine level of the central and western Pyrenees, to which the dominance of the crooked sedge, Carex curvula, with twisted leaves whithering early at the tip, gives a highly distinctive texture and yellow-brown hue.
Taxons (Liens actifs si espèces présentes)
Agrostis rupestris All., 1785 ( Comb. caract. )
Androsace carnea L., 1753 ( Comb. caract. )
Armeria alpina Willd., 1809 ( Comb. caract. )
Carex curvula subsp. curvula All., 1785 ( Comb. caract. )
Euphrasia minima Jacq. ex DC., 1805 ( Comb. caract. )
Festuca airoides Lam., 1788 ( Comb. caract. )
Gentiana alpina Vill., 1779 ( Comb. caract. )
Helictochloa versicolor (Vill.) Romero Zarco, 2011 ( Comb. caract. )
Homogyne alpina (L.) Cass., 1821 ( Comb. caract. )
Jasione crispa subsp. crispa (Pourr.) Samp., 1921 ( Comb. caract. )
Leucanthemopsis alpina (L.) Heywood, 1975 ( Comb. caract. )
Luzula spicata (L.) DC., 1805 ( Comb. caract. )
Minuartia recurva (All.) Schinz & Thell., 1907 ( Comb. caract. )
Nardus stricta L., 1753 ( Comb. caract. )
Oreochloa disticha subsp. blanka (Deyl) P.Küpfer, 1974 ( Comb. caract. )
Phyteuma hemisphaericum L., 1753 ( Comb. caract. )
Potentilla aurea L., 1756 ( Comb. caract. )
Primula integrifolia L., 1753 ( Comb. caract. )
Salix herbacea L., 1753 ( Comb. caract. )
Scorzoneroides pyrenaica var. helvetica (Mérat) B.Bock, 2012 ( Comb. caract. )
Scorzoneroides pyrenaica var. pyrenaica (Gouan) Holub, 1977 ( Comb. caract. )
Senecio incanus L., 1753 ( Comb. caract. )
Trifolium alpinum L., 1753 ( Comb. caract. )
Veronica bellidioides L., 1753 ( Comb. caract. )
Analyse Ecologie du milieu (En fonction des espèces présentes)
Faible
Forte — nb espèces indicatrices par classe
Humidité
Réaction du sol (pH)
Nutriments
Lumière
Matière organique
Granulométrie
Salinité