Gloucestershire is a county in South West England. The county comprises part of the Cotswold Hills, part of the flat fertile valley of the River Severn, and the entire Forest of Dean. The county town is the city of Gloucester, and other principal towns include Cheltenham, Stroud, Cirencester, and Tewkesbury. When considered as a ceremonial county, Gloucestershire borders the preserved county of Gwent in Wales, and in England the ceremonial counties of Herefordshire, Worcestershire, Warwickshire, Oxfordshire, Wiltshire, Somerset and Bristol. According to a 2002 campaign by the charity Plantlife, the county flower of Gloucestershire is the Wild Daffodil.