Q522 Euro-Siberian perennial amphibious communities
Description
Communities partly or occasionally entirely submersed by slow-flowing or still, mostly oligotrophic waters.
Protection
Protected by the EU Habitat Directive under the codes 3110 ("Oligotrophic waters containing very few minerals of sandy plains (Littorelletalia uniflorae)") and 3130 ("Oligotrophic to mesotrophic standing waters with vegetation of the Littorelletea uniflorae and/or of the Isoeto-Nanojuncetea").Floristic Composition
Frequent species
Juncus bulbosus
45%,
Baldellia ranunculoides aggr.
38%,
Ranunculus flammula
35%,
Isolepis fluitans
30%,
Hypericum elodes
30%,
Hydrocotyle vulgaris
28%,
Potamogeton polygonifolius
27%,
Juncus heterophyllus
26%,
Eleocharis multicaulis
24%,
Veronica scutellata
21%,
Juncus articulatus
20%,
Littorella uniflora
15%,
Antinoria agrostidea
15%,
Helosciadium inundatum
15%,
Lythrum portula
14%,
Glyceria declinata
13%,
Ranunculus ololeucos
13%,
Galium palustre
13%,
Lilaeopsis carolinensis
11%,
Callitriche stagnalis
11%,
Trocdaris verticillatum
11%,
Eleocharis palustris
10%,
Anagallis tenella
10%,
Eleocharis bonariensis
9%,
Pilularia globulifera
9%,
Oenanthe crocata
9%,
Stenotaphrum secundatum
8%,
Triglochin striata
8%,
Agrostis stolonifera
8%,
Baldellia alpestris
8%,
Mentha pulegium
8%,
Samolus valerandi
8%,
Juncus effusus
8%,
Isoetes fluitans
7%,
Illecebrum verticillatum
7%,
Myriophyllum alterniflorum
7%,
Helosciadium nodiflorum
6%,
Mentha aquatica
6%,
Carex demissa
5%,
Isoetes velata
5%,
Luronium natans
5%,
Juncus pygmaeus
5%,
Ranunculus omiophyllus
5%
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Indicator species
Baldellia ranunculoides aggr. 0.38,
Juncus bulbosus 0.32,
Isolepis fluitans 0.3,
Ranunculus flammula 0.28,
Hypericum elodes 0.27,
Juncus heterophyllus 0.26,
Potamogeton polygonifolius 0.26,
Hydrocotyle vulgaris 0.24,
Eleocharis multicaulis 0.21,
Veronica scutellata 0.19,
Littorella uniflora 0.15,
Antinoria agrostidea 0.15,
Helosciadium inundatum 0.14,
Ranunculus ololeucos 0.13,
Juncus articulatus 0.12,
Lilaeopsis carolinensis 0.11,
Lythrum portula 0.1,
Pilularia globulifera 0.09,
Eleocharis bonariensis 0.09,
Callitriche stagnalis 0.09,
Triglochin striata 0.08,
Stenotaphrum secundatum 0.08,
Baldellia alpestris 0.08,
Myriophyllum alterniflorum 0.07,
Isoetes fluitans 0.07,
Samolus valerandi 0.07,
Trocdaris verticillatum 0.06,
Isoetes velata 0.05,
Luronium natans 0.05,
Aristavena setacea 0.05,
Mentha pulegium 0.04,
Eleocharis uniglumis 0.04,
Ranunculus omiophyllus 0.04,
Ranunculus peltatus 0.04,
Ranunculus penicillatus 0.04,
Juncus pygmaeus 0.04,
Potamogeton crispus 0.04,
Ludwigia palustris 0.03,
Eryngium viviparum 0.03,
Galium debile 0.03,
Eleocharis acicularis 0.03,
Ranunculus ophioglossifolius 0.03,
Spiranthes aestivalis 0.03,
Cotula coronopifolia 0.03,
Thrincia saxatilis aggr. 0.03,
Bacopa monnieri 0.02,
Myosotis martini 0.02,
Isolepis cernua 0.02,
Ranunculus tripartitus 0.02,
Carex arenaria 0.02,
Archidium alternifolium 0.02,
Lindernia procumbens 0.02,
Fontinalis antipyretica 0.02
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Phytosociology
- Eleocharitetum multicaulis
- Hyperico elodis-Potametum oblongi
- Junco heterophylli-Pilularietum globuliferae
- Lilaeopsio attenuatae-Triglochinetum striatae
Relations with other habitat types
These communities occupy an intermediate position between Q521, associated to eutrophy, and Q24x.
Regional distribution
Known occurrences and potential area of occupancy of the habitat type in the study region.
