R55x Tall-herb communities of humid meadows

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Description

Tall grasslands on alluvial, longly but not continuously submerged and only moderatley eutrophic soils.

Protection

Protected under the code 6430 ("Hydrophilous tall herb fringe communities of plains and of the montane to alpine levels") by the EU Habitat Directive.

Floristic Composition

Frequent species

Filipendula ulmaria 90%, Epilobium hirsutum 51%, Mentha longifolia 51%, Urtica dioica 41%, Dactylis glomerata 38%, Galium aparine aggr. 34%, Holcus lanatus 32%, Equisetum arvense 29%, Arrhenatherum elatius 27%, Heracleum sphondylium 27%, Phalaroides arundinacea 25%, Lotus pedunculatus 25%, Scrophularia auriculata 24%, Rumex crispus 24%, Ranunculus acris 21%, Poa trivialis 19%, Rumex acetosa 19%, Chaerophyllum aureum 18%, Vicia cracca 18%, Chaerophyllum hirsutum 18%, Aconitum lycoctonum 17%, Lythrum salicaria 16%, Rubus ulmifolius 16%, Bistorta officinalis 16%, Polypogon viridis 15%, Cirsium rivulare 14%, Eupatorium cannabinum 14%, Geum rivale 14%, Trifolium pratense 13%, Lathyrus pratensis 13%, Lysimachia vulgaris 13%, Schedonorus arundinaceus 13%, Juncus effusus 12%, Rumex conglomeratus 11%, Angelica sylvestris 10%, Calystegia sepium 10%, Agrostis stolonifera 10%, Senecio legionensis 10%, Elytrigia repens 10%, Stachys sylvatica 10%, Brachypodium sylvaticum 9%, Cynosurus cristatus 9%, Anthoxanthum odoratum 9%, Solanum dulcamara 8%, Aconitum napellus 8%, Silene flos-cuculi 8%, Ranunculus repens 8%, Phleum pratense aggr. 8%, Juncus inflexus 8%, Equisetum palustre 8%, Myosotis sicula 8%, Iris pseudacorus 8%, Carex hirta 8%, Lycopus europaeus 8%, Rumex obtusifolius 8%, Jacobaea aquatica 8%, Holcus mollis 8%, Galium palustre 8%, Salix purpurea 8%, Lapsana communis 7%, Poa pratensis 7%, Plantago lanceolata 7%, Potentilla reptans 7%, Trisetum flavescens 6%, Astrantia major 6%, Agrostis capillaris 6%, Galeopsis tetrahit 6%, Rubus caesius 6%, Senecio altissimus 6%, Verbena officinalis 5%, Oenanthe crocata 5%, Cirsium palustre 5%, Centaurea nigra 5%, Schedonorus giganteus 5%, Anthriscus caucalis 5%, Juncus acutiflorus 5%

Phytosociology

  • Oenantho crocatae-Filipenduletum ulmariae
  • Ranunculo acris-Filipenduletum ulmariae
  • Senecio laderoi-Filipenduletum ulmariae

Relations with other habitat types

These tall meadows occupy less managed and more continuously damp soils than R352, but not as water-fringing and regularly submerged as Q51x and Q531. They typically colonize the clearings that floods episodically create in the riparian forests of unit @T1, but not where river debris accumulate and the more nitrophilous V39 and R55Z develops. Since none of the currently level IV EUNIS units suits the floristic composition of Iberoatlantic wet meadows, a new umbrella regional unit is created at that level.

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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