Constant species

Dactylis glomerata, Lolium perenne, Plantago lanceolata, Taraxacum officinale agg.

Physiognomy

The Lolium perenne-Dactylis glomerata community comprises coarse weedy grassland vegetation in which Lolium perenne and Dactylis glomerata usually make up the bulk of the more or less closed cover, along with a variety of perennial associates and scattered ephemerals which find a place in locally disturbed places. Plantago lanceolata and Taraxacum officinale agg. are the commonest of these companions but Achillea millefolium, Plantago major, Trifolium pratense, Agrostis stolonifera, Urtica dioica, Hypochoeris radicata and Potentilla reptans all figure occasionally among the perennials, Poa annua, Bromus hordeaceus ssp. hordeaceus and B. sterilis among the annuals.

Sub-communities

Typical sub-community. Apart from the community constants, only frequent records for Trifolium dubium and Hordeum murinum with occasional Vicia sativa and Senecio squalidus are distinctive here.

Crepis vesicaria-Rumex obtusifolius sub-community. Poa annua becomes constant here but better preferential are Crepis vesicaria and Rumex obtusifolius with Poa trivialis, Senecio vulgaris and Cirsium arvense occasional. Seedlings of Buddleja davidii are sometimes found.

Plantago major-Trifolium repens sub-community. Poa annua and Holcus lanatus remain very frequent here but Plantago major and Trifolium repens are more distinctive with Ranunculus repens and Rumex crispus occasional.

Arrhenatherum elatius-Medicago lupulina sub-community. The grass contingent of the vegetation is further augmented here by constant H. lanatus and, more preferential, Arrhenatherum elatius and Agrostis capillaris.