Constant species

Chamomilla suaveolens, Plantago major, Poa annua.

Physiognomy

The Poa annua-Plantago major community comprises open swards in which rosettes of Plantago major and scattered plants of Poa annua and Chamomilla suaveolens are the only consistent feature. In contrast to the Polygonum-Chamomilla community, P. aviculare and Lolium perenne are of very variable frequency in the different sub-communities and Capsella bursa-pastoris is never more than occasional. The scarcity of Matricaria perforata and Elymus repens provide a distinction from the Poa-Matricaria community. Agrostis stolonifera and Taraxacum officinale agg. are occasional through the community and there are scarce records for Rumex crispus, R. obtusifolius, Bellis perennis, Filaginella uliginosa, Medicago lupulina, Alopecurus geniculatus, Anagalllis arvensis and Senecio vulgaris.

Sub-communities

Typical sub-community. Few species other than the three community constants occur with any frequency here but occasionally there is some Lolium perenne, Polygonum aviculare, Agrostis stolonifera and Taraxacum officinale. More distinctive is the presence in some samples of Sagina procumbens and Bryum argenteum.

Lolium perenne sub-community. L. perenne is a constant associate here with occasional Capsella bursa-pastoris, Polygonum arenastrum, Trifolium repens, Ranunculus repens, Agrostis stolonifera and Taraxacum officinale agg.

Polygonum aviculare-Ranunculus repens sub-community. L. perenne remains quite frequent here, along with Trifolium repens but more distinctive is the common occurrence of P. aviculare, R. repens, A. stolonifera and T officinale agg. with occasional Potentilla anserina, Matricaria maritima, Cerastium fontanum, Stellaria media, Polygonum persicaria, P. lapathifolium, P. hydropiper, Holcus lanatus and Dactylis glomerata.