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List of Sites of Special Scientific Interest in Oxfordshire facts for kids

Kids Encyclopedia Facts
This page is about SSSIs in Oxfordshire. For other counties, see List of SSSIs by Area of Search.

Oxfordshire in South East England has an area of 2,605 square kilometres and a population of 648,700. In England, the body responsible for designating Sites of Special Scientific Interest (SSSIs) is Natural England, which is responsible for protecting England's natural environment. Notification as an SSSI gives legal protection to the best sites for wildlife and geology. As of 2020, there are 111 SSSIs in Oxfordshire, 78 of which have been designated for biological interest, 27 for geological interest, and 6 for both biological and geological interest.

Key

Sites

Top - 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Site name Photograph B G Area Public access Location Other Map Citation Description
Alvescot Meadows YesY 3.0 hectares
(7.4 acres)		 Alvescot
51°44′35″N 1°36′22″W / 51.743°N 1.606°W / 51.743; -1.606 (Alvescot Meadows)
SP 273 050		 Map Citation
Appleton Lower Common Appleton Lower Common YesY 47.3 hectares
(117 acres)		 FP Appleton
51°42′11″N 1°23′10″W / 51.703°N 1.386°W / 51.703; -1.386 (Appleton Lower Common)
SP 425 007		 Map Citation The common has diverse broadleaved woodland on Oxford Clay with rides and glades. The shrub layer has a rich variety of species, such as primrose, goldilocks buttercup, early purple orchid, twayblade and wood anemone. Invertebrates include the rare club-tailed dragonfly.
Ardley Cutting and Quarry Ardley Cutting YesY YesY 40.1 hectares
(99 acres)		 PP Ardley
51°56′28″N 1°13′23″W / 51.941°N 1.223°W / 51.941; -1.223 (Ardley Cutting and Quarry)
SP 535 272		 BBOWT, GCR, SM Map Citation The quarry and railway cutting exposes rocks dating to the Bathonian stage of the Middle Jurassic, about 167 million years ago. It is described by Natural England as of national importance for the understanding of the Jurassic Period in Britain as it allows correlation of rocks of the Oxford area to be correlated with those of the Midlands. The site has calcareous grassland with diverse vertebrates, including the internationally protected great crested newt.
Ardley Trackways Ardley Trackways YesY 63.6 hectares
(157 acres)		 NO Bucknell
51°55′16″N 1°12′54″W / 51.921°N 1.215°W / 51.921; -1.215 (Ardley Trackways)
SP 541 250		 GCR Map Citation This site is internationally important because it has trackways created by a herd of sauropod (herbivorous) dinosaurs, together with several carnivorous theropods, along a shoreline dating to the Middle Jurassic, around 165 million years ago. These are the only such trackways in England, and one of the few dating to the Middle Jurassic in the world. The tracks throw light on the behaviour and gait of the dinosaours.
Arncott Bridge Meadows Arncott Bridge Meadows YesY 8.7 hectares
(21 acres)		 NO Arncott
51°51′43″N 1°07′05″W / 51.862°N 1.118°W / 51.862; -1.118 (Arncott Bridge Meadows)
SP 608 185		 Map Citation The site is adjacent to the River Ray and in its flood plain. It is old unimproved hay meadows which display medieval ridge and furrow features, showing that it has not been ploughed for centuries. It lies on Oxford Clay, and some areas are seasonally waterlogged. It has a wide variety of plants, including some rare ones, such as the nationally uncommon narrow-leaved water-dropwort, and the river bank also has unusual plants.
Ashdown Park Ashdown Park YesY 9.3 hectares
(23 acres)		 YES Ashbury
51°32′10″N 1°35′31″W / 51.536°N 1.592°W / 51.536; -1.592 (Ashdown Park)
SU 284 820		 Map Citation The park has been designated an SSSI because of the lichens on its many sarsen boulders. These are in parkland which is heavily grazed to ensure that the lichens, which have taken centuries to grow, do not become shaded. Noteworthy species include Aspicilia caesiocinerea, Buellia saxorum, Candelariella coralliza, Rinodina atrocinerea and Parmelia loxodes.
Aston Rowant Aston Rowant YesY 127.5 hectares
(315 acres)		 YES Shirburn
51°39′47″N 0°57′00″W / 51.663°N 0.950°W / 51.663; -0.950 (Aston Rowant)
SU 727 966		 NCR
NNR
SAC		 Map Citation This site has beech woodland, scrub and chalk grassland. Unusual plants in the ground flora include wood barley, and the orchids Violet and white helleborine. There are several uncommon species of beetles and moths, and fifty breeding bird species.
Aston Rowant Cutting Aston Rowant Cutting YesY 3.5 hectares
(8.6 acres)		 YES Shirburn
51°39′43″N 0°56′35″W / 51.662°N 0.943°W / 51.662; -0.943 (Aston Rowant Cutting)
SU 732 964		 GCR Map Citation This cutting provides the best exposure in central England dating to the Coniacian stage of the Late Cretaceous, approximately 88 million years ago. It is part of the Upper Chalk succession, and at its base there is a fossil rich section which is important in defining the boundary between the Coniacian and the preceding Turonian stage.
Aston Rowant Woods Aston Rowant Woods YesY 209.9 hectares
(519 acres)		 YES Aston Rowant
51°40′26″N 0°55′01″W / 51.674°N 0.917°W / 51.674; -0.917 (Aston Rowant Woods)
SU 750 978		 NCR
NNR
SAC		 Map Citation The site is described by Natural England as "of national importance as a large, unfragmented area of ancient semi-natural woodland characteristic of the Chilterns scarp". Flora include 52 species indicative of ancient woods, and there are over 100 species of fungi.
Aston Upthorpe Downs Aston Upthorpe Downs YesY 38.5 hectares
(95 acres)		 YES Aston Upthorpe
51°32′53″N 1°13′05″W / 51.548°N 1.218°W / 51.548; -1.218 (Aston Upthorpe Downs)
SU 543 835		 NCR Map Citation This site is a set of dry valleys in the Berkshire Downs. Most of it is chalk grassland which has a rich variety of flora and fauna, and there are also areas of mixed woodland and juniper scrub. Flora include the nationally uncommon wild candytuft and the only population in the county of the rare pasque flower.
Barrow Farm Fen YesY 6.7 hectares
(17 acres)		 Marcham
51°40′26″N 1°19′30″W / 51.674°N 1.325°W / 51.674; -1.325 (Barrow Farm Fen)
SU 468 975		 Map Citation
Bear, Oveys and Great Bottom Woods Oveys Wood YesY 64.1 hectares
(158 acres)		 FP Rotherfield Peppard
51°32′38″N 0°59′42″W / 51.544°N 0.995°W / 51.544; -0.995 (Bear, Oveys and Great Bottom Woods)
SU 698 833		 Map Citation This beech woodland has more than 40 species of ground flora which is commonly associated with ancient woods in southern Britain, including broad-leaved helleborine, southern wood-rush, yellow archangel, enchanter's nightshade, goldilocks buttercup, woodruff and the moss Leucobryum glaucum.
Berins Hill Bank YesY 2.1 hectares
(5.2 acres)		 Ipsden
51°33′40″N 1°03′32″W / 51.561°N 1.059°W / 51.561; -1.059 (Berins Hill Bank)
SU 653 851		 Map Citation
Berrick Trench Berrick Trench YesY 2.1 hectares
(5.2 acres)		 FP Swyncombe
51°35′17″N 0°59′02″W / 51.588°N 0.984°W / 51.588; -0.984 (Berrick Trench)
SU 705 882		 Map Citation This is an ancient semi-natural beech wood on the slope of a dry valley in the Upper Chalk. There are many stools of ash, oak, beech, whitebeam, field maple and hazel. Woodland flowering plants include early purple orchid and early dog-violet.
Bestmoor YesY 12.1 hectares
(30 acres)		 North Aston
51°57′50″N 1°17′06″W / 51.964°N 1.285°W / 51.964; -1.285 (Bestmoor)
SP 492 297		 Map Citation
Bix Bottom Bix Bottom YesY 102.3 hectares
(253 acres)		 YES Swyncombe
51°35′06″N 0°58′05″W / 51.585°N 0.968°W / 51.585; -0.968 (Bix Bottom)
SU 716 879		 BBOWT Map Citation This site has ancient woods which are shown on a map of 1786, together with areas of grassy clearings and scrub. More than 500 species of vascular plant have been recorded, including 18 orchids and the rare meadow clary, which is listed in the British Red Data Book of Plants. There are more than 75 bird species and 650 fungi, including many which are nationally rare.
Blenheim Park Blenheim Park YesY 224.3 hectares
(554 acres)		 YES Woodstock
51°50′10″N 1°22′12″W / 51.836°N 1.370°W / 51.836; -1.370 (Blenheim Park)
SP 435 155		 Map Citation The park was once an Anglo-Saxon chase and then a twelfth-century deer park. It now has some of the best areas of pasture and oak woodland in the country. The large lakes were created in the eighteenth century, and they are regionally important for breeding and wintering birds. Invertebrates include three rare beetles which are included in the British Red Data Book of Invertebrates, Rhizophagus oblongicollis, Plectophloeus nitidus and Aeletesatomarius.
Bould Wood Bould Wood YesY 58.2 hectares
(144 acres)		 PP Chipping Norton
51°52′59″N 1°38′02″W / 51.883°N 1.634°W / 51.883; -1.634 (Bould Wood)
SP 253 206		 BBOWT Map Citation This site is mainly ancient semi-natural woodland, but it also has two streams, a pond and a wet meadow. The lower plant flora is diverse. Fungi include tricholoma toadstools and Cudoniella clavus, while there are lichens such as Cladonia polydactyla, Catillaria prasina and Graphis scripta.
Brasenose Wood and Shotover Hill Brasenose Wood and Shotover Hill YesY 109.2 hectares
(270 acres)		 YES Headington
51°45′50″N 1°11′10″W / 51.764°N 1.186°W / 51.764; -1.186 (Brasenose Wood and Shotover Hill)
SP 563 056		 NCR Map Citation Most Brasenose Wood is a remnant of the ancient Shotover Forest, and it is one of the few woods which is still managed by the traditional method of coppice-with-standards. It has a very diverse ground flora, and 221 species of vascular plant have been recorded, including 46 which are characteristic of ancient woodland. Shotover hill has heath and unimproved grassland. It is described by Natural England as "of outstanding entomological interest", with many rare flies, bees, wasps and ants.
Buckland Warren YesY 0.04 hectares
(0.099 acres)		 NO Buckland
51°39′50″N 1°31′12″W / 51.664°N 1.520°W / 51.664; -1.520 (Buckland Warren)
SU 333 963		 Map Citation This narrow strip of cultivated land between a wood and a golf course is designated an SSSI because it has a population of the nationally rare broad-leaved cudweed, which has been recorded at less than ten sites in Britain and is listed in the British Red Data Book of Vascular Plants. This annual plant requires disturbance of the soil by ploughing in early to mid October.
Cassington Meadows YesY 6.9 hectares
(17 acres)		 Witney
51°47′17″N 1°19′55″W / 51.788°N 1.332°W / 51.788; -1.332 (Cassington Meadows)
SP 462 101		 SAC Map Citation
Chimney Meadows Chimney Meadows YesY 49.6 hectares
(123 acres)		 PP Bampton
51°41′53″N 1°29′31″W / 51.698°N 1.492°W / 51.698; -1.492 (Chimney Meadows)
SP 352 000		 BBOWT, NNR Map Citation This site, which consists of six botanically rich alluvial meadows, is bordered on the south by the River Thames. The meadows are intersected by ditches, most of which are covered in reed canary-grass. The most common grasses are crested dog's-tail, creeping bent, perennial rye-grass, hairy sedge and glaucous sedge.
Chinnor Chalk Pit Chinnor Chalk Pit YesY 20.4 hectares
(50 acres)		 NO Chinnor
51°41′28″N 0°54′22″W / 51.691°N 0.906°W / 51.691; -0.906 (Chinnor Chalk Pit)
SU 757 997		 GCR Map Citation This site is described by Natural England as "important for its excellent exposures Totternhoe Stone", dating to the mid-Cenomanian stage of the Cretaceous period, around 100 million years ago. It has yielded many fossils of ammonites from the Lower and Middle Chalk.
Chinnor Hill Chinnor Hill YesY 26.8 hectares
(66 acres)		 YES Chinnor
51°41′56″N 0°53′35″W / 51.699°N 0.893°W / 51.699; -0.893 (Chinnor Hill)
SP 766 006		 BBOWT Map Citation This hill has species-rich calcareous grassland, juniper scrub, which is an uncommon habitat, mixed scrub and woodland. More than 300 species of vascular plant have been recorded and 65 of birds. Many passerines breed in the scrub, and thrushes such as redwings and fieldfares feed on berries in the winter.
Cothill Fen Cothill Fen YesY YesY 43.3 hectares
(107 acres)		 PP Marcham
51°41′53″N 1°19′59″W / 51.698°N 1.333°W / 51.698; -1.333 (Cothill Fen)
SP 462 001		 BBOWT, GCR, NCR, NNR, SAC Map Citation This site has nationally rare calcareous fen and moss-rich mire habitats and a rich invertebrate fauna, including 25 species in the Red Data Book of Invertebrates. More than 330 vascular plants have been recorded. It is a nationally important site geologically because the sampling the peat gives a picture of the vegetation over the early Holocene, between 10,000 and 6,500 years ago.
Culham Brake YesY 1.5 hectares
(3.7 acres)		 Culham
51°39′50″N 1°16′01″W / 51.664°N 1.267°W / 51.664; -1.267 (Culham Brake)
SU 508 964		 Map Citation
Cumnor YesY 0.2 hectares
(0.49 acres)		 Oxford
51°43′34″N 1°20′02″W / 51.726°N 1.334°W / 51.726; -1.334 (Cumnor)
SP 461 032		 GCR Map Citation
Ditchley Road Quarry YesY 12.1 hectares
(30 acres)		 Charlbury
51°52′34″N 1°27′54″W / 51.876°N 1.465°W / 51.876; -1.465 (Ditchley Road Quarry)
SP 369 199		 GCR Map Citation
Dry Sandford Pit Dry Sandford Pit YesY YesY 4.2 hectares
(10 acres)		 YES Abingdon
51°41′28″N 1°19′34″W / 51.691°N 1.326°W / 51.691; -1.326 (Dry Sandford Pit)
SU 467 994		 BBOWT, GCR Map Citation This former sand quarry exposes a sequence of limestone rocks laid down in shallow coastal waters during the Oxfordian stage of the Jurassic, around 160 million years ago. It has many fossil ammonites. It has diverse calcareous habitats, including fen, grassland, scrub and heath. It is nationally important entomologically, especially for bees and wasps.
Ducklington Mead Ducklington Mead YesY 4.6 hectares
(11 acres)		 NO Ducklington
51°45′58″N 1°28′30″W / 51.766°N 1.475°W / 51.766; -1.475 (Ducklington Mead)
SP 363 076		 Map Citation This traditionally managed meadow has diverse flora, such as the rare and declining snake's-head fritillary. Flowering plants in drier areas include saw-wort, dropwort, lady's bedstraw and betony. There are also ditches with interesting wetland flora and an ancient hedge with a variety of shrubs.
Fernham Meadows YesY 22.5 hectares
(56 acres)		 Faringdon
51°36′50″N 1°34′37″W / 51.614°N 1.577°W / 51.614; -1.577 (Fernham Meadows)
SU 294 907		 Map Citation
Frilford Heath, Ponds and Fens Frilford Heath, Ponds and Fens YesY 108.8 hectares
(269 acres)		 PP Abingdon
51°40′55″N 1°21′50″W / 51.682°N 1.364°W / 51.682; -1.364 (Frilford Heath, Ponds and Fens)
SU 441 983		 BBOWT Map Citation Natural England describes the acid grassland, heathland and valley fens of this site as unique in southern England. Over 400 vascular plants have been recorded, including some which are nationally rare. There are unusual insects such as the wasp Microdynerus exilis, which was only recognised as native to Britain in the late twentieth century, the red data book of threatened species fly cheilosia mutabalis, and the nationally uncommon Epistrophe diaphana.
Glyme Valley Glyme Valley YesY 28.9 hectares
(71 acres)		 PP Chipping Norton
51°55′48″N 1°30′36″W / 51.930°N 1.510°W / 51.930; -1.510 (Glyme Valley)
SP 338 258		 BBOWT Map Citation This linear site runs along two stretches of the valley of the River Glyme, with the upper area encompassing the river's headwaters. The diverse habitats include the river, ponds, fen, marshy grassland, limestone grassland, scrub and wet woodland. There is a large colony of meadow clary, a rare species which is listed in the British Red Data Book of Vascular Plants. There are several badger setts.
Grafton Lock Meadow YesY 10.7 hectares
(26 acres)		 Faringdon
51°41′17″N 1°36′22″W / 51.688°N 1.606°W / 51.688; -1.606 (Grafton Lock Meadow)
SU 273 989		 Map Citation
Hackpen, Warren & Gramp's Hill Downs Warren Down YesY 71.4 hectares
(176 acres)		 YES Childrey
51°33′36″N 1°29′10″W / 51.560°N 1.486°W / 51.560; -1.486 (Hackpen, Warren & Gramp's Hill Downs)
SU 357 847		 SM Map Citation This site consists of three adjacent areas of unimproved chalk grassland, which are managed by close grazing. Warren Down and Gramp's Hill Down are dominated by upright brome, and most of Hackpen Down by red fescue. Eleven species of butterfly have been recorded, including chalkhill blue, brown argus and marbled white.
Harpsden Wood Harpsden Wood YesY 29.4 hectares
(73 acres)		 YES Henley-on-Thames
51°31′01″N 0°54′22″W / 51.517°N 0.906°W / 51.517; -0.906 (Harpsden Wood)
SU 760 804		 Map Citation Most of this ancient wood is on acidic clay with flints, although some areas are on sandy clay or chalky silt. The acid soils have a sparse understorey but there is a diverse ground flora in the calcareous areas. Orchids include broad-leaved helleborine, green-flowered helleborine, bird's-nest orchid and narrow-lipped helleborine.
Hartslock Hartslock YesY 41.8 hectares
(103 acres)		 YES Goring-on-Thames
51°30′25″N 1°06′36″W / 51.507°N 1.110°W / 51.507; -1.110 (Hartslock)
SU 619 790		 BBOWT, SAC Map Citation This site on the east bank of the River Thames has diverse semi-natural habitats, including species-rich chalk downland, ancient yew woodland, semi-natural broadleaved woodland, riverside fen and scrub. Hartslock Wood is one of the sites listed in 1915 by Charles Rothschild, the founder of the Wildlife Trusts, as "worthy of preservation". The wood has a variety of tree species including beech and yew, and there is a large colony of badgers.
Highlands Farm Pit Highlands Farm Pit YesY 0.6 hectares
(1.5 acres)		 YES Henley-on-Thames
51°31′34″N 0°55′48″W / 51.526°N 0.930°W / 51.526; -0.930 (Highlands Farm Pit)
SU 743 813		 GCR Map Citation The site exposes gravel from the abandoned channel of the River Thames before the Anglian ice age pushed the river south around 450,000 years ago. It may date to the late Anglian Black Park Terrace which would make it the latest known exposure of the gravel floor of the old channel, and therefore of considerable importance. It has revealed large quantities of Palaeolithic flints, which are some of the earliest of their type known. It is described by Natural England as a "crucial site".
Holly Court Bank YesY 4.4 hectares
(11 acres)		 Witney
51°49′59″N 1°26′28″W / 51.833°N 1.441°W / 51.833; -1.441 (Holly Court Bank)
SP 386 151		 Map Citation
Holly Wood Holly Wood YesY 25.6 hectares
(63 acres)		 NO Oxford
51°47′10″N 1°09′00″W / 51.786°N 1.150°W / 51.786; -1.150 (Holly Wood)
SP 587 100		 Map Citation This ancient wood is a small remnant of the medieval Royal Forest of Shotover. It is coppice with standards on Oxford Clay with a varied invertebrate fauna. There are several uncommon butterfiles such as the black hairstreak and purple emperor.
Holton Wood Holton Wood YesY 50.6 hectares
(125 acres)		 FP Oxford
51°46′01″N 1°07′59″W / 51.767°N 1.133°W / 51.767; -1.133 (Holton Wood)
SP 599 079		 Map Citation This ancient wood was formerly part of Bernwood Forest, which was a medieval hunting forest. It is semi-natural coppice with standards, with fine oak standards of varying ages. It has a rich invertebrate fauna, including 27 species of butterfly, with uncommon species such as white admiral and purple emperor.
Hook Meadow and The Trap Grounds Hook Meadow and The Trap Grounds YesY 11.9 hectares
(29 acres)		 NO Oxford
51°46′37″N 1°16′41″W / 51.777°N 1.278°W / 51.777; -1.278 (Hook Meadow and The Trap Grounds)
SP 499 089		 Map Citation These unimproved meadows in the floodplain of the River Thames are poorly drained and they have calcareous clay soils. The southern field is the most waterlogged, and its flora includes wetland species such as sharp-flowered rush, marsh arrow grass, common spike-rush and early marsh orchid.
Hook Norton Cutting and Banks Hook Norton Cutting and Banks YesY YesY 6.7 hectares
(17 acres)		 PP Chipping Norton
51°58′55″N 1°28′48″W / 51.982°N 1.480°W / 51.982; -1.480 (Hook Norton Cutting and Banks)
SP 358 316		 BBOWT, GCR Map Citation Hook Norton Cutting is a nature reserve along two stretches of a disused railway line separated by a tunnel. Most of it is unimproved calcareous grassland with a rich variety of flora. The site is notable for its bee species, including one which has only been recorded at three other sites in the country, Andrena bucephala. The cutting exposes rocks dating to the Middle Jurassic, around 167 million years ago, which are the type section of the Hook Norton Member of the Chipping Norton Formation. Hook Norton Bank is a steeply sloping limestone grassland by the River Swere.
Horsehay Quarries Horsehay Quarries YesY 8.4 hectares
(21 acres)		 NO Chipping Norton
51°56′28″N 1°20′17″W / 51.941°N 1.338°W / 51.941; -1.338 (Horsehay Quarries)
SP 456 272		 GCR Map Citation These quarries expose rocks dating to the Middle Jurassic period. The sequence runs from the Northampton Sand Formation of the Aalenian about 172 million years ago to the Taynton Limestone Formation of the Middle Bathonian around 167 million years ago.
Hurst Hill Hurst Hill YesY YesY 20.6 hectares
(51 acres)		 YES Cumnor
51°44′02″N 1°18′43″W / 51.734°N 1.312°W / 51.734; -1.312 (Hurst Hill)
SP 476 041		 GCR Map Citation The site is owned by All Souls College, Oxford, and its mosses and liverworts have been monitored for more than fifty years. The hill is also important geologically. In 1879 a fossil of a Camptosaurus prestwichii, a large herbivorous dinosaur dating to the Upper Jurassic 143 million years ago, was found on the site. The fossil belongs to a typically North African genus, and provides evidence of a land bridge across the proto-Atlantic in the Late Jurassic.
Iffley Meadows Iffley Meadows YesY 36.1 hectares
(89 acres)		 YES Oxford
51°43′48″N 1°14′38″W / 51.730°N 1.244°W / 51.730; -1.244 (Iffley Meadows)
SP 523 037		 BBOWT Map Citation These flood meadows between two arms of the River Thames are traditionally managed for hay and pasture. A large part of the site is on clay, and it is enriched by silt each year when it is flooded. There is a rich grassland flora, with the outstanding feature being 89,000 snake's head fritillaries, which produce purple flowers in the spring. There is a network of old river channels, ditches and overgrown hedges.
Kirtlington Quarry Kirtlington Quarry YesY 3.1 hectares
(7.7 acres)		 YES Kidlington
51°52′30″N 1°17′02″W / 51.875°N 1.284°W / 51.875; -1.284 (Kirtlington Quarry)
SP 494 199		 GCR, LNR Map Citation Britain has the only five Middle Jurassic mammal sites in the world, and this disused quarry has yielded the richest and most diverse assemblage. It dates to the Upper Bathonian, around 150 million years ago. There are nine therian and prototherians species, together with a tritylodontid. There are also fossils of theropod dinosaurs, crocodilians, pterosaurs, fishes and many shark teeth.
Knightsbridge Lane Knightsbridge Lane YesY 1.7 hectares
(4.2 acres)		 YES Watlington
51°40′01″N 1°06′14″W / 51.667°N 1.104°W / 51.667; -1.104 (Knightsbridge Lane)
SU 683 969		 Map Citation This site consists of woodland on the sides of a minor road, which has approximately one tenth of the population in the country of a very rare plant, green hound's tongue. It is listed in the British Red Data Book of vascular plants, and it is found at only seven other locations in Britain. The species is often found in disturbed soils, and may have increased following the clearance of dead elm trees.
Lamb and Flag Quarry YesY 0.2 hectares
(0.49 acres)		 Abingdon
51°40′26″N 1°27′07″W / 51.674°N 1.452°W / 51.674; -1.452 (Lamb and Flag Quarry)
SU 380 974		 GCR Map Citation
Lambridge Wood Lambridge Wood YesY 74.6 hectares
(184 acres)		 YES Henley-on-Thames
51°33′04″N 0°56′13″W / 51.551°N 0.937°W / 51.551; -0.937 (Lambridge Wood)
SU 738 841		 Map Citation Soil types in the wood vary from calcareous to very acid. The main trees are beech, and other trees include oak, ash and wych elm. The understorey in mainly bramble, and in some areas bracken.
Langley's Lane Meadow YesY 3.3 hectares
(8.2 acres)		 Witney
51°42′36″N 1°26′10″W / 51.710°N 1.436°W / 51.710; -1.436 (Langley's Lane Meadow)
SP 391 014		 Map Citation
Little Tew Meadows Little Tew Meadows YesY 40.0 hectares
(99 acres)		 FP Little Tew
51°57′00″N 1°27′11″W / 51.950°N 1.453°W / 51.950; -1.453 (Little Tew Meadows)
SP 377 281		 Map Citation This site is composed of four adjoining unimproved meadows. One is used for hay while the rest are managed by cattle grazing. Two have prominent ridge and furrow dating to medieval farming practices. There are also extensive flushes and outcrops of limestone around the site of a former quarry.
Little Wittenham Little Wittenham YesY 68.9 hectares
(170 acres)		 YES Dorchester-on-Thames
51°37′52″N 1°10′30″W / 51.631°N 1.175°W / 51.631; -1.175 (Little Wittenham)
SU 572 928		 SAC Map Citation This site, which is managed by the Earth Trust, consists of woods, grassland, scrub and ponds on the slope of a hill next to the River Thames. Flora include the nationally scarce greater dodder, and there is a rich assemblage of amphibians, including one of the largest populations in the country of the great crested newt, which is a priority species of the Biodiversity action plan.
Littlemore Railway Cutting Littlemore Railway Cutting YesY 0.5 hectares
(1.2 acres)		 NO Oxford
51°43′16″N 1°14′02″W / 51.721°N 1.234°W / 51.721; -1.234 (Littlemore Railway Cutting)
SP 530 027		 GCR Map Citation The cutting exposes limestone and clay laid down in mid-Oxfordian stage of the Late Jurassic, around 160 million years ago. The deposit is part of the Stanford Formation, and the clay appears to have been deposited in a channel between coral reefs which then covered the Oxford area.
Littleworth Brick Pit YesY 1.5 hectares
(3.7 acres)		 Oxford
51°44′38″N 1°08′53″W / 51.744°N 1.148°W / 51.744; -1.148 (Littleworth Brick Pit)
SP 589 054		 GCR Map Citation
Long Hanborough Gravel Pit YesY 3.7 hectares
(9.1 acres)		 Witney
51°49′08″N 1°23′38″W / 51.819°N 1.394°W / 51.819; -1.394 (Long Hanborough Gravel Pit)
SP 419 136		 GCR Map Citation
Lye Valley Lye Valley YesY 2.3 hectares
(5.7 acres)		 YES Oxford
51°44′46″N 1°12′32″W / 51.746°N 1.209°W / 51.746; -1.209 (Lye Valley)
SP 547 056		 LNR Map Citation This a calcareous valley fen, which is a nationally rare and threatened habitat. It is drained by the Lye Brook. There is a variety of moss species, such as Drepanocladus revolvens and Campylium stellatum. Invertebrates include the nationally rare soldier fly, Vanoyia tenuicornis and the uncommon spiders, Xysticus ulmi and Anistea elegans.
Lyehill Quarry Lyehill Quarry YesY 2.8 hectares
(6.9 acres)		 NO Oxford
51°45′25″N 1°08′38″W / 51.757°N 1.144°W / 51.757; -1.144 (Lyehill Quarry)
SP 592 068		 GCR Map Citation This disused quarry exposes rocks dating to the Wheatley Limestone member of the Stanford Formation, approximately 160 million years ago during the Middle Jurassic. The deposits are limestones in an unstable reef substrate, and the only fossils are of oysters.
Magdalen Grove YesY 0.4 hectares
(0.99 acres)		 Oxford
51°45′18″N 1°15′00″W / 51.755°N 1.250°W / 51.755; -1.250 (Magdalen Grove)
SP 519 065		 GCR Map Citation
Magdalen Quarry YesY 0.3 hectares
(0.74 acres)		 Oxford
51°45′36″N 1°12′11″W / 51.760°N 1.203°W / 51.760; -1.203 (Magdalen Quarry)
SP 551 071		 GCR, LNR Map Citation
Middle Barton Fen YesY 11.6 hectares
(29 acres)		 Chipping Norton
51°55′59″N 1°21′22″W / 51.933°N 1.356°W / 51.933; -1.356 (Middle Barton Fen)
SP 444 263		 Map Citation
Moulsford Downs Moulsford Down YesY 13.6 hectares
(34 acres)		 NO Moulsford
51°32′20″N 1°10′08″W / 51.539°N 1.169°W / 51.539; -1.169 (Moulsford Down)
SU 577 826		 Map Citation This chalk grassland site on the Berkshire Downs has a rich wildlife. The diverse invertebrate fauna includes the uncommon robber-fly Leptarthrus brevirostris, the adonis blue butterfly, the juniper shield bug, the weevils Baris picicornis and seed beetle Phyllobius viridicollis, the leaf beetle Phyllotreta nodicornis and the Bruchus cisti.
Murcott Meadows YesY 22.5 hectares
(56 acres)		 Oxford
51°31′16″N 1°08′35″W / 51.521°N 1.143°W / 51.521; -1.143 (Murcott Meadows)
SP 592 139		 BBOWT Map Citation
Neithrop Fields Cutting Neithrop Fields Cutting YesY 1.4 hectares
(3.5 acres)		 YES Banbury
52°04′26″N 1°21′43″W / 52.074°N 1.362°W / 52.074; -1.362 (Neithrop Fields Cutting)
SP 438 419		 GCR Map Citation This site exhibits sections dating to the Early Jurassic around 190 to 180 million years ago. Its Middle Lias sediments show that it was adjacent to the "London landmass", which was then an island. The Upper Lias have a section rich in fossil ammonites. Natural England describes the site as a "key palaeogeographic and stratigraphic locality".
New Marston Meadows New Marston Meadows YesY 44.7 hectares
(110 acres)		 PP Oxford
51°45′54″N 1°14′53″W / 51.765°N 1.248°W / 51.765; -1.248 (New Marston Meadows)
SP 520 076		 Map Citation These meadows in the floodplain of the River Cherwell are traditionally managed for hay or by grazing. Some plants are typical of those on ancient meadows, such as common meadow-rue, pepper-saxifrage, devil's-bit scabious, adder's-tongue fern, smooth brome and meadow barley. Snake's head fritillary, which is nationally scarce, is also found at the site.
Otmoor Otmoor YesY 213.0 hectares
(526 acres)		 PP Murcott
51°49′12″N 1°10′08″W / 51.820°N 1.169°W / 51.820; -1.169 (Otmoor)
SP 574 138		 Map Citation This site in the floodplain of the River Ray has herb-rich damp grassland, wet sedge, coarse grassland, woodland, pools and ditches. More than sixty species of bird breed on the site, such as curlew and lapwing, while wintering birds include teal, wigeon, snipe, golden plover and short-eared owl.
Out Wood Out Wood YesY 19.2 hectares
(47 acres)		 PP Woodstock
51°52′59″N 1°24′36″W / 51.883°N 1.410°W / 51.883; -1.410 (Out Wood)
SP 407 207		 Map Citation This semi-natural wood is a surviving fragment of the medieval Royal Forest of Wychwood. It is overgrown coppice with standards, and the standards are oaks between 30 and 150 years old. Rides have a diverse ground flora, including meadow saffron, broad-leaved helleborine and greater butterfly orchid.
Pishill Woods Pishill Woods YesY 42.8 hectares
(106 acres)		 PP Henley-on-Thames
51°36′22″N 0°58′19″W / 51.606°N 0.972°W / 51.606; -0.972 (Pishill Woods)
SU 713 902		 Map Citation These semi-natural woods have a rich ground flora, including 35 species associated with ancient woodland. The southern part is dominated by beech and oak coppice, whereas the north, which has been managed as high forest, has mainly mature beech trees, with smaller numbers of oak, ash, cherry, whitebeam, yew and wych elm. The southern part is common land.
Pixey and Yarnton Meads Pixey and Yarnton Meads YesY 86.4 hectares
(213 acres)		 PP Oxford
51°47′17″N 1°18′29″W / 51.788°N 1.308°W / 51.788; -1.308 (Pixey and Yarnton Meads)
SP 478 102		 NCR, SAC Map Citation These are unimproved flood meadows on the bank of the River Thames. Their management is very well recorded, and it is known that they have been grazed and cut for hay for more than a thousand years, with the result that they are botanically rich, with more than 150 species. The site has been the subject of detailed botanical and hydrological research.
Port Meadow with Wolvercote Common and Green Port Meadow YesY 167.1 hectares
(413 acres)		 PP Oxford
51°46′26″N 1°17′13″W / 51.774°N 1.287°W / 51.774; -1.287 (Port Meadow with Wolvercote Common and Green)
SP 493 086		 NCR, SAC, SM Map Citation This site consists of meadows in the floodplain of the River Thames. It is thought to have been grazed for over a thousand years and is a classic site for studying the effects of grazing on flora. There is a low diversity compared with neighbouring fields which are cut for hay, but 178 flowering plants have been recorded, including creeping marshwort, which is a Red Data Book species not found anywhere else in Britain.
Priest's Hill YesY 1.0 hectare
(2.5 acres)		 Henley-on-Thames
51°34′44″N 0°59′35″W / 51.579°N 0.993°W / 51.579; -0.993 (Priest's Hill)
SU 699 872		 GCR Map Citation
Reed Hill Reed Hill YesY 14.0 hectares
(35 acres)		 NO Witney
51°35′02″N 1°27′00″W / 51.584°N 1.450°W / 51.584; -1.450 (Reed Hill)
SP 380 174		 Map Citation This sheltered dry valley has unimproved limestone grassland, secondary woodland and scrub. A spring at the northern end makes the ground there seasonally damp. Invertebrates include the small blue, Duke of Burgundy and dark green fritillary butterflies, the small shield bug Neotti-glossa pusilla, the beetle Oedemera lurida and the spider Hypsosinga pygmaea.
Rock Edge Rock Edge YesY 1.7 hectares
(4.2 acres)		 YES Oxford
51°45′14″N 1°12′22″W / 51.754°N 1.206°W / 51.754; -1.206 (Rock Edge)
SP 549 064		 GCR, LNR Map Citation This site exposes limestone rich in coral called Coral rag, laid down when the area was under a warm, shallow sea, similar to the Bahama Banks today. It is rich in fossils derived from the coral reefs. It dates to the Upper Jurassic, around 145 million years ago.
Rushy Meadows Rushy Meadows YesY 8.9 hectares
(22 acres)		 NO Kidlington
51°49′26″N 1°18′11″W / 51.824°N 1.303°W / 51.824; -1.303 (Rushy Meadows)
SP 481 142		 Map Citation This site consists of unimproved alluvial grasslands on the bank of the Oxford Canal. The species-rich sward is dominated by hard rush, and other plants include water avens, which is very uncommon in the Thames Basin, pepper saxifrage, devil's bit scabious, early marsh orchid and distant sedge.
Salt Way, Ditchley Salt Way, Ditchley YesY 2.0 hectares
(4.9 acres)		 YES Chipping Norton
51°52′23″N 1°26′38″W / 51.873°N 1.444°W / 51.873; -1.444 (Salt Way, Ditchley)
SP 384 195		 LNR Map Citation This is a stretch of an ancient track together with its species-rich grass verges and hedges. It has been designated an SSSI because it has the largest known British colony of the very rare downy woundwort, with more than 100 seedlings and 60 flowering stems. The plant is associated with hedges along Roman roads and ancient tracks on calcareous soils, and Salt Way may date to the Roman period.
Sarsgrove Wood Sarsgrove Wood YesY 41.9 hectares
(104 acres)		 NO Chipping Norton
51°54′58″N 1°33′32″W / 51.916°N 1.559°W / 51.916; -1.559 (Sarsgrove Wood)
SP 304 243		 Map Citation This ancient wood has a diverse geology resulting in a variety of soil conditions. A stream with poorly drained valley walls runs through the wood. More freely-drained areas have ground flora including early-purple orchid, primrose, bluebell, early dog-violet, sweet violet and narrow-leaved everlasting pea.
Sharp's Hill Quarry Sharp's Hill Quarry YesY 2.4 hectares
(5.9 acres)		 NO Banbury
52°01′12″N 1°30′36″W / 52.020°N 1.510°W / 52.020; -1.510 (Sharp's Hill Quarry)
SP 337 358		 GCR Map Citation This is the type locality of the Sharp's Hill Formation. It is very fossiliferous and dates to the Bathonian stage of the Middle Jurassic, around 167 million years ago. It is very important for understanding the Bathonian succession in north Oxfordshire. Strata of the underlying Chipping Norton Formation are also present.
Sheep's Banks Sheep's Bank YesY 5.1 hectares
(13 acres)		 NO Woodstock
51°53′06″N 1°21′32″W / 51.885°N 1.359°W / 51.885; -1.359 (Sheep's Banks)
SP 442 209		 Map Citation This steeply sloping site is species-rich grassland which is traditionally managed. An ancient hedge runs the length of the site and a small stream runs along the downward side. Flora include five species of orchid, including bee, pyramidal and green-winged.
Shellingford Crossroads Quarry Shellingford Crossroads Quarry YesY 2.6 hectares
(6.4 acres)		 YES Faringdon
51°38′42″N 1°31′48″W / 51.645°N 1.530°W / 51.645; -1.530 (Shellingford Crossroads Quarry)
SU 326 941		 GCR Map Citation This site exposes rocks of the Corallian Group, dating to the Oxfordian stage of the Late Jurassic, around 160 million years ago. It has many fossils of corals and reef-dwelling bivalves, and it is also important as it provides an example of the complexity of Oxfordian stratigraphy.
Shipton-on-Cherwell and Whitehill Farm Quarries Shipton-on-Cherwell and Whitehill Farm Quarries YesY 27.0 hectares
(67 acres)		 NO Kidlington
51°51′07″N 1°18′32″W / 51.852°N 1.309°W / 51.852; -1.309 (Shipton-on-Cherwell and Whitehill Farm Quarries)
SP 477 173		 GCR Map Citation This site exposes a lithostratigraphic succession dating to the Bathonian stage of the Middle Jurassic, around 167 million years ago. Shipton-on-Cherwell Quarry is described by Natural England as "of international importance as one of the best Upper Bathonian reptile sites known", and it has yielded type material for two species of crocodile. The quarry has also produced the type specimen of the dinosaur Dacentrurus vetustus.
Shirburn Hill Shirburn Hill YesY 63.7 hectares
(157 acres)		 YES Watlington
51°39′11″N 0°58′05″W / 51.653°N 0.968°W / 51.653; -0.968 (Shirburn Hill)
SU 715 954		 Map Citation The hill has chalk grassland, chalk heath, scrub and broadleaved woodland. Most grasslands in the Chilterns are maintained by stock, and the site is unusual in being cropped only by rabbits. Less closely grazed areas have taller grass with species such as false oat-grass, tor-grass and red fescue. There are large areas of hawthorn and buckthorn scrub.
Sidling's Copse and College Pond YesY 21.7 hectares
(54 acres)		 Oxford
51°46′52″N 1°12′00″W / 51.781°N 1.200°W / 51.781; -1.200 (Sidling's Copse and College Pond)
SP 553 094		 BBOWT Map Citation
Spartum Fen YesY 7.6 hectares
(19 acres)		 Oxford
51°42′32″N 1°03′18″W / 51.709°N 1.055°W / 51.709; -1.055 (Spartum Fen)
SP 654 016		 Map Citation
Stanton Great Wood Stanton Great Wood YesY 58.2 hectares
(144 acres)		 NO Oxford
51°46′41″N 1°08′56″W / 51.778°N 1.149°W / 51.778; -1.149 (Stanton Great Wood)
SP 588 092		 Map Citation This coppice with standards wood is traditionally managed. The dominant trees are pedunculate oak, ash and hazel, and there is a rich flora and diverse insects. Moths include the buff footman, poplar lutestring, blotched emerald, maiden's blush and the nationally uncommon small black arches.
Stanton Harcourt YesY 0.5 hectares
(1.2 acres)		 Witney
51°44′35″N 1°24′07″W / 51.743°N 1.402°W / 51.743; -1.402 (Stanton Harcourt)
SP 414 051		 GCR Map Citation
Stonesfield Common, Bottoms and Banks Stonesfield Common, Bottoms and Banks YesY 26.9 hectares
(66 acres)		 PP Witney
51°50′46″N 1°25′55″W / 51.846°N 1.432°W / 51.846; -1.432 (Stonesfield Common, Bottoms and Banks)
SP 392 165		 Map Citation This site is composed of steeply sloping valleys and banks. Most of it is unimproved limestone grassland and scrub, but there is also an area of semi-natural ancient woodland. The grass in Stonesfield Common is mainly upright brome, and herbs include field scabious, greater knapweed, lady's bedstraw and pyramidal orchid.
Stonesfield Slate Mines YesY 0.8 hectares
(2.0 acres)		 Witney
51°51′00″N 1°26′38″W / 51.850°N 1.444°W / 51.850; -1.444 (Stonesfield Slate Mines)
SP 384 170		 GCR Map Citation
Stratton Audley Quarries YesY 8.6 hectares
(21 acres)		 Bicester
51°55′12″N 1°07′41″W / 51.920°N 1.128°W / 51.920; -1.128 (Stratton Audley Quarries)
SP 601 250		 GCR Map Citation
Sturt Copse Sturt Copse YesY 6.5 hectares
(16 acres)		 FP Witney
51°49′55″N 1°25′19″W / 51.832°N 1.422°W / 51.832; -1.422 (Sturt Copse)
SP 399 150		 Map Citation This wood has many giant stools of coppiced of ash and wych elm trees, together with oaks, some of them pollarded. Most of the ground layer is dominated by dog's mercury, and there are uncommon plants such as yellow star-of-Bethlehem, Lathraea squamaria and hard shield-fern.
Sugworth Sugworth YesY 0.6 hectares
(1.5 acres)		 NO Abingdon
51°42′11″N 1°15′40″W / 51.703°N 1.261°W / 51.703; -1.261 (Sugworth)
SP 512 007		 GCR Map Citation This site dates to the Cromerian Stage, an interglacial over half a million years ago. It is a river channel cut into Kimmeridge Clay of the Late Jurassic, and it has rich deposits of vertebrates, ostracods, molluscs, beetles, plant remains and pollen.
Swyncombe Downs Swyncombe Downs YesY 47.1 hectares
(116 acres)		 PP Henley-on-Thames
51°36′54″N 1°01′30″W / 51.615°N 1.025°W / 51.615; -1.025 (Swyncombe Downs)
SU 676 911		 SM Map Citation This is an area of chalk grassland and scrub on the steep slopes of the Chiltern Hills. The site is described by Natural England as outstanding for its butterflies and moths. Butterflies include the silver-spotted skipper, which is nationally rare, grizzled skipper, grizzled skipper and dark green fritillary. There are day flying moths such as the cistus forester, chimney sweeper and wood tiger.
Taynton Quarries YesY 40.0 hectares
(99 acres)		 Taynton
51°49′59″N 1°39′36″W / 51.833°N 1.660°W / 51.833; -1.660 (Taynton Quarries)
SP 235 150		 Map Citation
Tuckmill Meadows YesY 5.7 hectares
(14 acres)		 Shrivenham
51°36′25″N 1°39′22″W / 51.607°N 1.656°W / 51.607; -1.656 (Tuckmill Meadows)
SU 239 899		 LNR Map Citation
Warren Bank Warren Bank YesY 3.1 hectares
(7.7 acres)		 YES Wallingford
51°33′58″N 1°03′32″W / 51.566°N 1.059°W / 51.566; -1.059 (Warren Bank)
SU 653 857		 BBOWT Map Citation This steeply sloping site has unimproved chalk grassland and scrub. There is a rich variety of flora, including horseshoe vetch, chalk milkwort and bee orchid. There are also many insects, with butterflies such as dark green fritillary and green hairstreak.
Waterperry Wood Waterperry Wood YesY 137.0 hectares
(339 acres)		 YES Forest Hill
51°46′41″N 1°07′26″W / 51.778°N 1.124°W / 51.778; -1.124 (Waterperry Wood)
SP 605 092		 NCR Map Citation This wood has been designated an SSSI because it contains a diverse and important insect fauna, with many nationally uncommon and rare species. There are nineteen species of nationally uncommon hoverflies, including five which are listed in the British Red Data Book of Insects, many nationally uncommon beetles, thirty butterfly species and several rare moths.
Watlington and Pyrton Hills Watlington Hill YesY 112.7 hectares
(278 acres)		 PP Watlington
51°38′20″N 0°58′59″W / 51.639°N 0.983°W / 51.639; -0.983 (Watlington and Pyrton Hills)
SU 705 938		 LNR Map Citation This site has floristically diverse chalk grassland, chalk scrub, broadleaved woodland and yew woodland. Watlington Hill has short turf which is grazed by rabbits, with flowering plants including yellow-wort, dropwort, horseshoe vetch, squinancywort and the nationally rare candytuft.
Wendlebury Meads and Mansmoor Closes Wendlebury Meads YesY 74.1 hectares
(183 acres)		 FP Kidlington
51°51′11″N 1°11′24″W / 51.853°N 1.190°W / 51.853; -1.190 (Wendlebury Meads and Mansmoor Closes)
SP 561 175		 BBOWT, NCR Map Citation Wendlebury Meads consists of several meadows which have been traditionally managed, and have complex and varied flora. It is one of the few Calcareous pastures to have survived agricultural improvements. Almost all show evidence of medieval ridge and furrow ploughing. Mansmoor Closes were enclosed before 1622, and are important from both a landscape and archaeological point of view. More than 160 plant species have been recorded on the site.
Weston Fen Weston Fen YesY 14.0 hectares
(35 acres)		 FP Bicester
51°52′19″N 1°14′20″W / 51.872°N 1.239°W / 51.872; -1.239 (Weston Fen)
SP 525 195		 Map Citation This site has diverse habitats, including a fast-flowing stream, species-rich, calcareous fen, willow carr, hazel woodland, limestone grassland and marshy grassland. There are several rare species of beetle, such as Sphaerius acaroides, Eubria palustris, Silis ruficollis and Agabus biguttatus.
Westwell Gorse YesY 2.5 hectares
(6.2 acres)		 Burford
51°48′00″N 1°41′02″W / 51.800°N 1.684°W / 51.800; -1.684 (Westwell Gorse)
SP 219 113		 Map Citation
Whitecross Green and Oriel Woods Whitecross Green YesY 63.0 hectares
(156 acres)		 YES Murcott
51°49′30″N 1°07′41″W / 51.825°N 1.128°W / 51.825; -1.128 (Whitecross Green and Oriel Woods)
SP 602 144		 BBOWT Map Citation These ancient woods are part of two former royal forests, Shotover and Bernwood. They are crossed by herb-rich and grassy rides, some of which are bordered by ditches, and there is also a pond and a marsh. Twenty-four species of butterfly have been recorded including the nationally rare black hairstreak.
Whitehill Wood YesY 3.4 hectares
(8.4 acres)		 Witney
51°50′10″N 1°26′02″W / 51.836°N 1.434°W / 51.836; -1.434 (Whitehill Wood)
SP 391 154		 Map Citation
Whitehorse Hill Whitehorse Hill YesY YesY 99.0 hectares
(245 acres)		 PP Faringdon
51°34′41″N 1°34′05″W / 51.578°N 1.568°W / 51.578; -1.568 (Whitehorse Hill)
SU 300 867		 GCR, SM Map Citation This dry valley provides evidence of solifluction (slow sloping downhill due to repeated freezing and thawing) during at least one cold stage of the Pleistocene. The site has unimproved chalk grassland with a rich variety of flora, particularly in former chalk quarries. Grasses include upright brome and sheep’s fescue.
Wicklesham and Coxwell Pits YesY 12.6 hectares
(31 acres)		 Faringdon
51°38′42″N 1°34′44″W / 51.645°N 1.579°W / 51.645; -1.579 (Wicklesham and Coxwell Pits)
SU 292 941		 GCR Map Citation
Wolvercote Meadows Wolvercote Meadows YesY 7.1 hectares
(18 acres)		 PP Oxford
51°46′59″N 1°17′53″W / 51.783°N 1.298°W / 51.783; -1.298 (Wolvercote Meadows)
SP 485 096		 SAC Map Citation These meadows next to the River Thames are traditionally managed for pasture and hay, and they have a rich flora. The largest, which is called Great Baynham's Meadow, is used as pasture, and the other fields are managed for hay with grazing in the autumn. There are also watercourses which have many dragonflies.
Woodeaton Quarry Woodeaton Quarry YesY 7.3 hectares
(18 acres)		 YES Oxford
51°48′22″N 1°13′41″W / 51.806°N 1.228°W / 51.806; -1.228 (Woodeaton Quarry)
SP 533 122		 GCR Map Citation This site exposes a sequence of rocks dating to the Middle Jurassic around 167 million years ago. It exhibits one of the most complete Bathonian sections in the county, and is described by Natural England as "of great palaeontological and sedimentological interest".
Woodeaton Wood Woodeaton Wood YesY 14.0 hectares
(35 acres)		 NO Oxford
51°47′46″N 1°13′05″W / 51.796°N 1.218°W / 51.796; -1.218 (Woodeaton Wood)
SP 540 111		 Map Citation This coppice with standards on calcareous soil is a fragment of the ancient Shotover Forest. The ground layer has plants such as wood anemone, nettle-leaved bellflower, ramsons, goldilocks buttercup, early dog-violet and enchanter's nightshade.
Wormsley Chalk Banks Wormsley Chalk Banks YesY 14.8 hectares
(37 acres)		 PP Stokenchurch
51°38′02″N 0°55′34″W / 51.634°N 0.926°W / 51.634; -0.926 (Wormsley Chalk Banks)
SU 744 934		 Map Citation The site has chalk grassland which is rich in both plant and invertebrate species which have sharply declined nationally. Flowers include bee and fly orchids, the latter of which is becoming scarce. Invertebrates include a variety of butterflies, harvest spiders and slowworms.
Worsham Lane YesY 0.4 hectares
(0.99 acres)		 Witney
51°47′02″N 1°33′22″W / 51.784°N 1.556°W / 51.784; -1.556 (Worsham Lane)
SP 307 096		 Map Citation
Wychwood Wychwood YesY 501.7 hectares
(1,240 acres)		 PP Witney
51°51′04″N 1°30′43″W / 51.851°N 1.512°W / 51.851; -1.512 (Wychwood)
SP 337 170		 NCR, NNR, SM Map Citation This remnant of a large royal hunting forest is the largest area of ancient broadleaved forest in the county, and the site also has limestone grassland and four marl lakes. More than 360 species of flowering plants and ferns have been recorded, together with 85 lichens and 60 mosses and liverworts. The invertebrate fauna is diverse, including 17 rare flies.
Wytham Ditches and Flushes Wytham Ditches and Flushes YesY 2.7 hectares
(6.7 acres)		 NO Wytham
51°47′06″N 1°19′37″W / 51.785°N 1.327°W / 51.785; -1.327 (Wytham Ditches and Flushes)
SP 465 098		 Map Citation These ditches have a rich aquatic and fen flora. Uncommon wetland plants include greater water-parsnip, greater spearwort, water violet, brookweed, narrow-leaved water plantain and creeping jenny. There is also a small tussocky field which is kept partly waterlogged by flushes.
Wytham Woods Wytham Wood YesY 423.8 hectares
(1,047 acres)		 YES Wytham
51°46′08″N 1°19′48″W / 51.769°N 1.330°W / 51.769; -1.330 (Wytham Woods)
SP 463 080		 NCR Map Citation Habitats in this site, which formerly belonged to Abingdon Abbey, include ancient woodland and limestone grassland. Over 500 species of vascular plant have been recorded, and more data about the bird, mammal and invertebrate fauna, have probably been recorded about this site than any other in the country as a result of studies by Oxford University. More than 900 species of beetles, 580 of flies, 200 of spiders, 700 of bees, wasps and ant, 250 of true bugs and 27 of earthworms have been recorded.

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List of Sites of Special Scientific Interest in Oxfordshire Facts for Kids. Kiddle Encyclopedia.