V37V Disturbed sites with summer annuals

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Description

Summer-annual subnitrophilous ruderal vegetation adapted to severe disturbances.

Protection

This habitat is not protected under the EU Habitat Directive.

Floristic Composition

Frequent species

Hordeum murinum 100%, Sisymbrium officinale 74%, Bromus sterilis 53%, Lolium perenne 52%, Capsella bursa-pastoris aggr. 46%, Poa annua 41%, Sonchus oleraceus 36%, Bromus hordeaceus aggr. 34%, Convolvulus arvensis 34%, Malva sylvestris 31%, Bromus diandrus 31%, Hirschfeldia incana 28%, Plantago lanceolata 28%, Avena barbata 27%, Dactylis glomerata 27%, Urtica dioica 24%, Trifolium repens aggr. 24%, Polygonum aviculare 24%, Rumex pulcher 20%, Medicago polymorpha 18%, Verbena officinalis 18%, Carduus tenuiflorus 17%, Galium aparine aggr. 17%, Torilis arvensis aggr. 16%, Geranium dissectum 16%, Papaver rhoeas 15%, Plantago major 14%, Anthemis arvensis 14%, Rumex crispus 14%, Erigeron canadensis 14%, Taraxacum sect. Taraxacum 14%, Bromus rigidus 13%, Chenopodium album 13%, Geranium molle 13%, Vicia sativa aggr. 13%, Holcus lanatus 13%, Crepis capillaris 13%, Jacobaea vulgaris 12%, Trifolium pratense 11%, Anacyclus clavatus 11%, Arctium minus 11%, Lactuca virosa 11%, Lapsana communis 10%, Stellaria media 10%, Medicago sativa 10%, Bromus madritensis 9%, Medicago arabica 9%, Conium maculatum 8%, Daucus carota 8%, Eryngium campestre 8%, Persicaria maculosa 7%, Ballota nigra 7%, Echium vulgare 7%, Trifolium campestre 7%, Sinapis arvensis 7%, Cynodon dactylon 7%, Erodium cicutarium aggr. 7%, Helminthotheca echioides 7%, Mentha suaveolens 7%, Lactuca serriola 7%, Foeniculum vulgare 7%, Centaurea calcitrapa 6%, Bellis perennis 6%, Lolium rigidum 6%, Lepidium heterophyllum 6%, Cynosurus echinatus 6%, Anagallis arvensis 5%, Vicia cracca 5%, Avena sterilis 5%, Lolium multiflorum 5%, Crepis taraxacifolia 5%, Hypochaeris radicata 5%, Rumex obtusifolius 5%, Rostraria cristata 5%, Sonchus asper 5%, Vulpia myuros 5%

Phytosociology

  • Sisymbrio officinalis-Hordeetum murini

Relations with other habitat types

Rich in therophytes and archaeophytes, these truly ruderal communities colonise open spaces with recently turned-over soils (their nutrients not necessarily very abundant in absolute terms, but suddenly released by the exposure of organic mater to solar heat).

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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