This paper describes the vegetation database of the UK Environmental Change Network (ECN - http://www.ecn.ac.uk; GIVD ID EU-GB-002). ECN is the UK's long-term environmental monitoring programme. A wide range of integrated physical, chemical and biological variables which drive and respond to environmental change are collated, quality controlled and made freely available for scientific research. Vegetation data recording forms part of the suite of ECN measurements. Data are recorded at regular time intervals at twelve sites located around the UK. The vegetation data, along with the wider information resource available for the ECN sites, are available through a licensing system.