Q24x Iberoatlantic amphibious swards on peaty soils, dominated by Juncus bulbosus

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Description

Acidic minerotrophic mires dominated by a carpet of brown mosses, sphagna, small sedges and small herbs. This habitat is widespread at low and middle elevations of the study area, with a species composition rich in oceanic fen specialists.

Protection

Protected, at least partially, by the EU Habitat Directive under the code 3110 ("Oligotrophic waters containing very few minerals of sandy plains [Littorelletalia uniflorae]").

Floristic Composition

Frequent species

Juncus bulbosus 88%, Anagallis tenella 60%, Carex echinata 58%, Sphagnum auriculatum 48%, Ranunculus flammula 41%, Carex demissa 40%, Molinia caerulea 38%, Trocdaris verticillatum 34%, Lotus pedunculatus 30%, Hypericum elodes 29%, Drosera rotundifolia 28%, Potamogeton polygonifolius 26%, Eleocharis multicaulis 24%, Narthecium ossifragum 24%, Carex panicea 24%, Parnassia palustris 24%, Scutellaria minor 23%, Wahlenbergia hederacea 23%, Viola palustris 21%, Potentilla erecta 19%, Juncus effusus 19%, Juncus articulatus 18%, Pinguicula grandiflora 18%, Erica tetralix 16%, Caltha palustris 14%, Juncus acutiflorus 14%, Sphagnum papillosum 14%, Eriophorum angustifolium 14%, Pedicularis sylvatica 13%, Sphagnum cuspidatum 11%, Sphagnum subsecundum 11%, Danthonia decumbens 11%, Succisa pratensis 10%, Calliergonella cuspidata 10%, Stellaria alsine 10%, Menyanthes trifoliata 9%, Prunella vulgaris 9%, Rhynchospora alba 9%, Sphagnum subnitens 9%, Campylium stellatum 9%, Hydrocotyle vulgaris 9%, Polytrichum commune 8%, Ranunculus omiophyllus 8%, Callitriche stagnalis 8%, Mentha aquatica 8%, Galium palustre 8%, Juncus bufonius 8%, Mentha pulegium 6%, Anthoxanthum odoratum 6%, Holcus lanatus 6%, Sphagnum denticulatum 6%, Drosera intermedia 6%, Isolepis setacea 6%, Festuca rivularis 6%, Veronica scutellata 6%, Cirsium palustre 6%, Sagina procumbens 6%, Isolepis cernua 6%, Carex pulicaris 6%, Pinguicula lusitanica 6%, Arnica montana 6%, Jacobaea aquatica 6%, Bryum pseudotriquetrum 6%, Lysimachia nemorum 5%, Glyceria fluitans 5%, Erica mackayana 5%, Erica ciliaris 5%, Agrostis capillaris 5%, Philonotis seriata 5%, Carum verticillatum 5%

Indicator species

Juncus bulbosus 0.83, Anagallis tenella 0.57, Sphagnum auriculatum 0.45, Carex echinata 0.45, Carex demissa 0.39, Ranunculus flammula 0.35, Trocdaris verticillatum 0.29, Lotus pedunculatus 0.27, Molinia caerulea 0.25, Potamogeton polygonifolius 0.24, Hypericum elodes 0.22, Drosera rotundifolia 0.22, Scutellaria minor 0.21, Wahlenbergia hederacea 0.21, Parnassia palustris 0.2, Carex panicea 0.19, Viola palustris 0.19, Eleocharis multicaulis 0.18, Juncus effusus 0.16, Juncus articulatus 0.12, Sphagnum papillosum 0.11, Narthecium ossifragum 0.11, Juncus acutiflorus 0.11, Pinguicula grandiflora 0.1, Danthonia decumbens 0.1, Caltha palustris 0.1, Sphagnum cuspidatum 0.09, Calliergonella cuspidata 0.09, Campylium stellatum 0.09, Pedicularis sylvatica 0.08, Sphagnum subsecundum 0.08, Prunella vulgaris 0.08, Succisa pratensis 0.07, Ranunculus omiophyllus 0.07, Polytrichum commune 0.07, Pinguicula lusitanica 0.06, Sagina procumbens 0.06, Arnica montana 0.06, Festuca rivularis 0.06, Menyanthes trifoliata 0.05, Cirsium palustre 0.05, Stellaria alsine 0.05, Carum verticillatum 0.05, Rhynchospora alba 0.05, Philonotis seriata 0.05, Carex pulicaris 0.05, Sphagnum denticulatum 0.05, Hydrocotyle vulgaris 0.05, Anthoxanthum odoratum 0.05, Bryum pseudotriquetrum 0.05

Phytosociology

  • Anagallido tenellae-Juncetum bulbosi
  • Arnicetum atlanticae

Relations with other habitat types

These communities replace Q522 when the less frequently submersed and more dystrophic conditions associated with peat deposition prevail. A new level IV regional unit is created, since Q24, as currently defined by EUNIS, does not evoke peaty conditions and is hardly distinguishable from the communities by us admitted as P2Nx.

Regional distribution

Known occurrences and potential area of occupancy of the habitat type in the study region.

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Citation: IBEROATLANTICA – Flora and Habitats of the Cantabrian Mixed Forests ecoregion.
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