Walmore Common is a 57.78-hectare (142.8-acre) nature reserve on the flood-plain of the River Severn, west of the city of Gloucester in England and north of the village of Chaxhill. It was notified as a biological Site of Special Scientific Interest in 1966. The site is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS).
Lower Woods is a 280.1-hectare (692-acre) biological and geological Site of Special Scientific Interest near the village of Wickwar, South Gloucestershire, notified in 1966 and renotified in 1985. The site area has increased at last revision in 1974 to a 284.1-hectare (702-acre) site. The site is a nature reserve managed by the Gloucestershire Wildlife Trust.
Midger is a 65.7-hectare (162-acre) biological Site of Special Scientific Interest straddling the border of Gloucestershire and South Gloucestershire, notified in 1966 and renotified in 1984. Since the last revision in 1974, the size has been reduced to a 56-hectare (140-acre) site. It lies east of Hillesley, Gloucestershire and north of Hawkesbury Upton, South Gloucestershire. It is at the head of the Kilcott Valley.
Ashleworth Ham is a 104.73-hectare (258.8-acre) biological Site of Special Scientific Interest. It is a large area of grassland on the Severn floodplain, north of Ashleworth in Gloucestershire, England. It is registered as a Site of Special Scientific Interest and was notified in 1974 and renotified in 1985. Ashleworth Ham received this designation because it is one of three sites in the Severn Vale where migratory waterfowl winter.
Brassey is a 2.1-hectare (5.2-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1954 and renotified in 1983. It is situated on the north side of the Windrush Valley, midway between Naunton and Upper Slaughter. The reserve comprises sloping, unimproved limestone pasture. There is a fast-flowing stream. This site is one of the few freshwater marshes in Gloucestershire. The stream joins the River Windrush.
Chaceley Meadow is a 1.8-hectare (4.4-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1954 and renotified in 1993. It lies on the eastern edge of Chaceley village and is about half a mile west of the River Severn.
Box Farm Meadows is a 8.3-hectare (21-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1985. This was formerly known as Balls Green Pastures. The reserve is situated at the southern edge of Box village and one mile east of Nailsworth.
Clarke's Pool Meadow is a 1.8-hectare (4.4-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1997. It lies on the flat top of 'Old Hill' about half a mile south of Blakeney. The site consists of two fields which were purchased by the Gloucestershire Wildlife Trust in 1997. The site was designated an SSSI in the same year and it is one of the finest surviving traditional hay meadows in Gloucestershire.
Cockleford Marsh is a 3.2-hectare (7.9-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1991.
Elmlea Meadows is a 6.9-hectare (17-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1989. The site is listed in the 'Cotswold District' Local Plan 2001-2011 as a Key Wildlife Site (KWS).
Leckhampton Hill and Charlton Kings Common is a 63.8-hectare (158-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, notified in 1954. There are five units of assessment.
Old River Severn, Upper Lode is a 3.72-hectare (9.2-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1985. It is a cross county border site between Gloucestershire and Herefordshire and Worcestershire.
Poor's Allotment is a 28.57-hectare (70.6-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1954. The site is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS).
Puckham Woods is a 32.38-hectare (80.0-acre) biological Site of Special Scientific Interest in Gloucestershire to the east of Cheltenham near Whittington, notified in 1954. The site is listed in the 'Cotswold District' Local Plan 2001-2011 as a Key Wildlife Site (KWS).
Range Farm Fields is a 12.8-hectare (32-acre) biological Site of Special Scientific Interest in Gloucestershire, near to Gloucester City, notified in 1996.
Tudor Farm Bank is a 3.68-hectare (9.1-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1999.
Upham Meadow and Summer Leasow is a 104.0-hectare (257-acre) biological Site of Special Scientific Interest on the border between Gloucestershire and Herefordshire & Worcestershire, at Twyning and near Bredon, notified in 1991.
{{Infobox SSSI |image=[[Image:Carex tomentosa inflorescence.jpg|200px|]] |image_caption=Example - downy-fruited sedge |name=Whelford Meadow |aos=Gloucestershire |interest=Biological |gridref=SP168000 |coordinates = 51.698946°N 1.757592°W |area=1.86 hectare |notifydate=1985 |enref=1003804 }}
Wildmoorway Meadows is a 12.6-hectare (31-acre) biological Site of Special Scientific Interest in Gloucestershire, to the east of Fairford, notified in 1989. The site is listed in the 'Cotswold District' Local Plan 2001-2011 as a Key Wildlife Site (KWS).
Mar Field Fen is a Site of Special Scientific Interest, or SSSI, north of Masham, North Yorkshire, England, in a rural area known as Marfield. It is situated on land containing woodland carr, fen, spring-fed marshy grassland and drier calcareous grassland, between the River Ure to the east and Marfield Wetland nature reserve to the west. As "one of the best examples of fen habitat in the Vale of York," it is a protected habitat for a variety of plants, including the common butterwort, a carnivorous plant. There is no public access to this site.
