Yanal Bog is a 1.6 hectare biological Site of Special Scientific Interest on the southern edge of the North Somerset Levels, just north of the village of Sandford, North Somerset. It was notified as an SSSI in 1988.
Bratton Downs is a 395.8 hectare biological and geological Site of Special Scientific Interest in Wiltshire, England, near the villages of Bratton and Edington, and about 3 miles (5 km) east of the town of Westbury. It was notified in 1971. The designated area consists mainly of chalk grassland, as well as some ancient woodland, and supports a diverse range of native flora and fauna. It overlays notable geological features—principally landforms created by glaciation in the Pleistocene.
Pewsey Downs is a 305.3 hectare biological Site of Special Scientific Interest on the southern edge of the Marlborough Downs north of Pewsey in Wiltshire, notified in 1951. It includes the Pewsey Downs National Nature Reserve.
North Meadow, Cricklade is a hay meadow near the town of Cricklade, in Wiltshire, England. It is 24.6 hectares in size. It is a traditionally managed lowland hay-meadow, or lammas land, and is grazed in common between 12 August and 12 February each year, and cut for hay no earlier than 1 July. This pattern of land use and management has existed for many centuries and has resulted in the species rich grassland flora and fauna present on the site.
Lambert's Castle is an Iron Age hillfort in the county of Dorset in southwest England. Since 1981 it has been designated as a Site of Special Scientific Interest (SSSI) on account of its geology, archaeology and ecology. The hillfort is designated a scheduled monument together with a bowl barrow, the sites of a post-medieval fair and a telegraph station. The site was on the Heritage at Risk Register but was removed in 2022 as a result of the Hillforts and Habitats Project.
Holies Down is a 5.6-hectare (14-acre) biological Site of Special Scientific Interest south of Streatley in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty, and is part of the Holies section of the Lardon Chase, the Holies and Lough Down National Trust property.
Purple moor grass and rush pastures is a type of Biodiversity Action Plan habitat in the UK. It occurs on poorly drained neutral and acidic soils of the lowlands and upland fringe. It is found in the South West of England, especially in Devon.
Aules Hill Meadows is the name given to a Site of Special Scientific Interest (SSSI) in Northumberland, England. The site, listed since 1992, is a set of four traditionally managed northern hay meadows, now rare in Northumberland.
Barrow Burn Meadows is a Site of Special Scientific Interest (SSSI) in north Northumberland, England. The site is a species-rich hay meadow of a sort now rare in Northumberland.
Hog's Hole is a 23.7-hectare (59-acre) biological Site of Special Scientific Interest in the civil parish of Combe in the English county of Berkshire.
Cleeve Hill is a 4-hectare (9.9-acre) biological Site of Special Scientific Interest south of Lambourn in Berkshire.
Westfield Farm Chalk Bank is a 14.1-hectare (35-acre) biological Site of Special Scientific Interest west of East Garston in Berkshire.
Coombe Wood, Frilsham is a 19.3-hectare (48-acre) biological Site of Special Scientific Interest south of Frilsham in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty.
Park Farm Down or Parkfarm Down is a 3.3-hectare (8.2-acre) biological Site of Special Scientific Interest north-west of Lambourn in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty.
King's Copse is a 13.7-hectare (34-acre) biological Site of Special Scientific Interest between Chapel Row and Clay Hill in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty. The site is private land but a public footpath runs through it.
Combe Wood and Linkenholt Hanging is a 106.5-hectare (263-acre) biological Site of Special Scientific Interest south of Hungerford in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty.
Rack Marsh is a 4-hectare (9.9-acre) nature reserve in Bagnor, on the north-western outskirts of Newbury in Berkshire. It is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. It is part of Kennet and Lambourn Floodplain, which is a Biological Site of Special Scientific Interest, and a Nature Conservation Review site. It is also part of the Kennet and Lambourn Floodplain Special Area of Conservation.
Watts Bank is a 1.9-hectare (4.7-acre) nature reserve south of Lambourn in Berkshire. It is managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust. It is designated a biological Site of Special Scientific Interest as White Shute.
Fallowlees Flush is the name given to a Site of Special Scientific Interest (SSSI) in mid-Northumberland, England. The steeply sloping site has calcium-rich springs supporting vegetation rare in the county.
Hatherton Flush is a Site of Special Scientific Interest (SSSI) by the River Weaver in Hatherton, near Wybunbury, Cheshire, England. It is protected for its variety of wetland plants. Species found at the site include the locally rare plants marsh helleborine, marsh lousewort and tubular water dropwort. Hatherton Flush is the largest example of this kind of flush in the county. The site was assessed as being in an "unfavourable"/"recovering" condition in 2008.
