Liste des biotopes et milieux floristiques.

Biotope - Typologie CORINE

34.32 - Niveau 4 : Pelouses calcaires sub-atlantiques semi-arides

Description

Taxons (Liens actifs si espèces présentes)

34.322 - Niveau 5 : Pelouses semi-sèches médio-européennes à Bromus erectus

Description

Mesophile and meso-xerophile calcareous grasslands of the sub-Atlantic domaine in the Low Countries, Germany, northern, central and western France and northwestern Spain. They are faunistically and floristically rich and the highly discontinuous nature of their distribution gives rise to a considerable geographical variation in the composition of plant and animal communities, marked by the occurrence of numerous species of local or disjunct occurrence in addition to the basic cortège common to most of them. Besides this geographical variation, the nature of these grasslands also depends, to a great extent, on hydric regime, substrate characteristics and agro-pastoral treatment, notably on whether they are mowed or grazed and how intensively. In particular, the relative abundance of the main constituent grass species, Bromus erectus, Brachypodium pinnatum s. l., Sesleria albicans and Koeleria pyramidata, varies both geographically with climatic conditions and locally with topography and agro-pastoral regime. Thus, although separate geographical entities may differ in that relative abundance, similarly differing facies may also coexist locally, producing sharply distinct habitats. To accomodate for these concurrent axes of variation, formations dominated by Brachypodium or by Sesleria, as well as all semi-damp formations, are removed from this division and placed in 34.323, 34.324 and 34.325. Geographical subdivisions, most apt at identifying distinctive plant and animal communities, may be used in the four sections by addition of a fourth decimal digit common to all of them. The regions encompassed by the geographical subdivisions corresponding to each value of this fourth digit are in all cases described under this section although in some of them, or in parts of some of them, there may be no grasslands belonging to 34.322, but only grasslands belonging to units 34.323, 34.324 or 34.325; these cases have, as much as possible, been identified under each of the subdivisions below.

Taxons (Liens actifs si espèces présentes)

Achillea millefolium L., 1753 ( Comb. caract. )
Agrimonia eupatoria L., 1753 ( Comb. caract. )
Agrostis capillaris L., 1753 ( Comb. caract. )
Alchemilla glaucescens Wallr., 1840 ( Comb. caract. )
Allium sphaerocephalon L., 1753 ( Comb. caract. )
Anacamptis morio (L.) R.M.Bateman, Pridgeon & M.W.Chase, 1997 ( Comb. caract. )
Anthoxanthum odoratum L., 1753 ( Comb. caract. )
Anthyllis vulneraria L., 1753 ( Comb. caract. )
Armeria arenaria (Pers.) Schult., 1820 ( Comb. caract. )
Armeria maritima (Mill.) Willd., 1809 ( Comb. caract. )
Asperula cynanchica L., 1753 ( Comb. caract. )
Avenella flexuosa (L.) Drejer, 1838 ( Comb. caract. )
Avenula pubescens (Huds.) Dumort., 1868 ( Comb. caract. )
Betonica officinalis L., 1753 ( Comb. caract. )
Blackstonia perfoliata (L.) Huds., 1762 ( Comb. caract. )
Botrychium lunaria (L.) Sw., 1801 ( Comb. caract. )
Brachypodium rupestre (Host) Roem. & Schult., 1817 ( Comb. caract. )
Briza media L., 1753 ( Comb. caract. )
Bromopsis erecta (Huds.) Fourr., 1869 ( Comb. caract. )
Bupleurum baldense Turra, 1764 ( Comb. caract. )
Calluna vulgaris (L.) Hull, 1808 ( Comb. caract. )
Campanula glomerata L., 1753 ( Comb. caract. )
Campanula rotundifolia L., 1753 ( Comb. caract. )
Carex arenaria L., 1753 ( Comb. caract. )
Carex caryophyllea Latourr., 1785 ( Comb. caract. )
Carex flacca Schreb., 1771 ( Comb. caract. )
Carex montana L., 1753 ( Comb. caract. )
Carlina acanthifolia subsp. cynara (Pourr. ex DC.) Arcang., 1882 ( Comb. caract. )
Carlina acaulis L., 1753 ( Comb. caract. )
Carlina vulgaris L., 1753 ( Comb. caract. )
Centaurea jacea subsp. timbalii (Martrin-Donos) Braun-Blanq., 1952 ( Comb. caract. )
Cerastium arvense L., 1753 ( Comb. caract. )
Cerastium arvense subsp. strictum Gaudin, 1828 ( Comb. caract. )
Cirsium acaulon (L.) Scop., 1769 ( Comb. caract. )
Coeloglossum viride (L.) Hartm., 1820 ( Comb. caract. )
Crocus vernus (L.) Hill, 1765 ( Comb. caract. )
Dactylis glomerata subsp. oceanica G.Guignard, 1986 ( Comb. caract. )
Dactylorhiza sambucina (L.) Soó, 1962 ( Comb. caract. )
Danthonia decumbens (L.) DC., 1805 ( Comb. caract. )
Daucus carota L., 1753 ( Comb. caract. )
Dianthus carthusianorum L., 1753 ( Comb. caract. )
Dianthus hyssopifolius L., 1755 ( Comb. caract. )
Eryngium campestre L., 1753 ( Comb. caract. )
Euphorbia cyparissias L., 1753 ( Comb. caract. )
Euphorbia flavicoma subsp. verrucosa (L.) Pignatti, 1973 ( Comb. caract. )
Euphorbia segetalis subsp. portlandica (L.) Litard., 1936 ( Comb. caract. )
Festuca arenaria Osbeck, 1788 ( Comb. caract. )
Festuca armoricana Kerguélen, 1975 ( Comb. caract. )
Festuca billyi Kerguélen & Plonka, 1991 ( Comb. caract. )
Festuca cinerea Vill., 1786 ( Comb. caract. )
Festuca filiformis Pourr., 1788 ( Comb. caract. )
Festuca lemanii Bastard, 1809 ( Comb. caract. )
Festuca nigrescens Lam., 1788 ( Comb. caract. )
Festuca rubra L., 1753 ( Comb. caract. )
Galium lucidum All., 1773 ( Comb. caract. )
Galium pumilum Murray, 1770 ( Comb. caract. )
Galium verum L., 1753 ( Comb. caract. )
Galium verum var. maritimum DC., 1805 ( Comb. caract. )
Genista germanica L., 1753 ( Comb. caract. )
Genista pilosa L., 1753 ( Comb. caract. )
Genista sagittalis L., 1753 ( Comb. caract. )
Genista tinctoria L., 1753 ( Comb. caract. )
Gentiana lutea L., 1753 ( Comb. caract. )
Geranium sanguineum L., 1753 ( Comb. caract. )
Gymnadenia conopsea (L.) R.Br., 1813 ( Comb. caract. )
Helianthemum apenninum (L.) Mill., 1768 ( Comb. caract. )
Helianthemum nummularium (L.) Mill., 1768 ( Comb. caract. )
Helictochloa pratensis (L.) Romero Zarco, 2011 ( Comb. caract. )
Hypochaeris radicata L., 1753 ( Comb. caract. )
Inula bifrons (L.) L., 1763 ( Comb. caract. )
Koeleria arenaria (Dumort.) Ujhelyi, 1970 ( Comb. caract. )
Koeleria macrantha (Ledeb.) Schult., 1824 ( Comb. caract. )
Koeleria pyramidata (Lam.) P.Beauv., 1812 ( Comb. caract. )
Koeleria vallesiana (Honck.) Gaudin, 1808 ( Comb. caract. )
Lathyrus linifolius (Reichard) Bässler, 1971 ( Comb. caract. )
Lathyrus pratensis L., 1753 ( Comb. caract. )
Leontodon hispidus L., 1753 ( Comb. caract. )
Leucanthemum ircutianum DC., 1838 ( Comb. caract. )
Linum catharticum L., 1753 ( Comb. caract. )
Linum usitatissimum subsp. angustifolium (Huds.) Thell., 1912 ( Comb. caract. )
Lotus corniculatus L., 1753 ( Comb. caract. )
Luzula alpina Hoppe, 1839 ( Comb. caract. )
Luzula campestris (L.) DC., 1805 ( Comb. caract. )
Luzula multiflora (Ehrh.) Lej., 1811 ( Comb. caract. )
Malva moschata L., 1753 ( Comb. caract. )
Medicago lupulina L., 1753 ( Comb. caract. )
Nardus stricta L., 1753 ( Comb. caract. )
Onobrychis viciifolia Scop., 1772 ( Comb. caract. )
Ononis spinosa subsp. procurrens (Wallr.) Briq., 1913 ( Comb. caract. )
Orchis militaris L., 1753 ( Comb. caract. )
Phleum phleoides (L.) H.Karst., 1880 ( Comb. caract. )
Pilosella officinarum Vaill., 1754 [nom. inval.] ( Comb. caract. )
Pimpinella saxifraga L., 1753 ( Comb. caract. )
Plantago lanceolata L., 1753 ( Comb. caract. )
Plantago media L., 1753 ( Comb. caract. )
Polygala vulgaris L., 1753 [nom. et typ. cons.] ( Comb. caract. )
Potentilla crantzii (Crantz) Beck ex Fritsch, 1897 ( Comb. caract. )
Potentilla erecta (L.) Raeusch., 1797 ( Comb. caract. )
Potentilla fagineicola Lamotte, 1877 ( Comb. caract. )
Potentilla verna L., 1753 [nom. et typ. cons.] ( Comb. caract. )
Poterium sanguisorba L., 1753 ( Comb. caract. )
Primula veris L., 1753 ( Comb. caract. )
Prospero autumnale (L.) Speta, 1982 ( Comb. caract. )
Prunella grandiflora (L.) Scholler, 1775 [ison.] ( Comb. caract. )
Prunella laciniata (L.) L., 1763 ( Comb. caract. )
Ranunculus bulbosus L., 1753 ( Comb. caract. )
Ranunculus carinthiacus Hoppe, 1826 ( Comb. caract. )
Ranunculus serpens Schrank, 1789 ( Comb. caract. )
Saxifraga granulata L., 1753 ( Comb. caract. )
Scabiosa columbaria L., 1753 ( Comb. caract. )
Scorzoneroides autumnalis (L.) Moench, 1794 ( Comb. caract. )
Sedum acre L., 1753 ( Comb. caract. )
Sedum montanum Songeon & E.P.Perrier, 1866 ( Comb. caract. )
Solidago virgaurea L., 1753 ( Comb. caract. )
Stachys recta L., 1767 ( Comb. caract. )
Succisa pratensis Moench, 1794 ( Comb. caract. )
Teucrium chamaedrys L., 1753 ( Comb. caract. )
Thesium humifusum subsp. humifusum DC., 1815 ( Comb. caract. )
Thymus drucei Ronniger, 1924 ( Comb. caract. )
Thymus pulegioides L., 1753 ( Comb. caract. )
Trifolium alpestre L., 1763 ( Comb. caract. )
Trifolium campestre Schreb., 1804 ( Comb. caract. )
Trifolium montanum L., 1753 ( Comb. caract. )
Trifolium ochroleucon Huds., 1762 ( Comb. caract. )
Trifolium pratense L., 1753 ( Comb. caract. )
Trinia glauca (L.) Dumort., 1827 ( Comb. caract. )
Trisetum flavescens (L.) P.Beauv., 1812 ( Comb. caract. )
Valeriana tuberosa L., 1753 ( Comb. caract. )
Veronica chamaedrys L., 1753 ( Comb. caract. )
Vicia angustifolia L., 1759 ( Comb. caract. )
Vicia lutea L., 1753 ( Comb. caract. )
Viola lutea subsp. lutea Huds., 1762 ( Comb. caract. )

Analyse Ecologie du milieu (En fonction des espèces présentes)

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