This dataset includes the results of vegetation quadrat surveys collected for the Natural England Long Term Monitoring Network. Surveys were conducted by a mixture of volunteers, Natural England staff, and paid contractors, using a standard protocol (see http://publications.naturalengland.org.uk/category/5895911152025600) and a range of quality assurance procedures. Natural England’s Long Term Monitoring Network project (LTMN) began in 2009 and aims to investigate how biodiversity is changing and identify the causes of change in ecosystems important for their nature conservation value. A rolling programme of vegetation surveys is repeated approximately every four years.