The vegetation is dominated by grasses and herbaceous plants, growing on soils deficient in lime (calcium).
Typical plants of lowland acid grassland in Britain include common bent grass, Agrostis capillaris, wavy hair-grass, Deschampsia flexuosa, bristle bent grass, Agrostis curtisii, tormentil, Potentilla erecta, and flowers such as sheep's sorrel, Rumex acetosella and heath bedstraw, Galium saxatile.
[1] In Britain, under 30,000 hectares of lowland acid grassland remain, often on common land and nature reserves.
[2] It is considered a nationally important habitat; areas are found in London on freely-draining sandy and gravelly soils.
271 Sites of Special Scientific Interest have been notified with acid grassland as a principal reason for the designation.