List of species occurring in Britain at just a single location
Encyclopedia
The following is a list of native plant
Plant
Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...

 and animal
Animal
Animals are a major group of multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their life. Most animals are motile, meaning they can move spontaneously and...

 species which are found in Britain
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

, but only at a single location.

Key

Key to conservation designations for species:
  • RDB - Red Data Book with three subdivisions
    • (cr) - critically endangered
    • (en) - endangered
    • (vu) - vulnerable

  • W&CA 8 - Schedule 8 of the Wildlife and Countryside Act 1981
    Wildlife and Countryside Act 1981
    The Wildlife and Countryside Act 1981 is an Act of Parliament in the United Kingdom and was implemented to comply with the Directive 2009/147/EC on the conservation of wild birds...



Key to conservation designations for sites:
  • NNR - National Nature Reserve
    National Nature Reserve
    For details of National nature reserves in the United Kingdom see:*National Nature Reserves in England*National Nature Reserves in Northern Ireland*National Nature Reserves in Scotland*National Nature Reserves in Wales...

  • SSSI - Site of Special Scientific Interest
    Site of Special Scientific Interest
    A Site of Special Scientific Interest is a conservation designation denoting a protected area in the United Kingdom. SSSIs are the basic building block of site-based nature conservation legislation and most other legal nature/geological conservation designations in Great Britain are based upon...


Vascular plants

This section currently lists non-critical species and critical species in the smaller apomictic genera
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

; many microspecies in the apomictic genera Hieracium
Hieracium
Hieracium known by its common name Hawkweed and long ago by its classical name hierakion which comes from the ancient Greek hierax, "a hawk"...

(hawkweeds), Rubus
Rubus
Rubus is a large genus of flowering plants in the rose family, Rosaceae, subfamily Rosoideae. Raspberries, blackberries, and dewberries are common, widely distributed members of the genus. Most of these plants have woody stems with prickles like roses; spines, bristles, and gland-tipped hairs are...

(brambles) and Taraxacum
Taraxacum
Taraxacum is a large genus of flowering plants in the family Asteraceae. They are native to Eurasia and North America, and two species, T. officinale and T. erythrospermum, are found as weeds worldwide. Both species are edible in their entirety...

(dandelions) are also found at just a single site each.

Species Conservation designation(s) of species Location at which found Conservation designation(s) of location Date of discovery at this location Formerly found elsewhere
Diapensia
Diapensia
Diapensia lapponica is a plant in the family Diapensiaceae, the only circumpolar species in the genus Diapensia, the others being mainly in the Himalayas. It is a circumboreal arctic-alpine species which grows on exposed rocky ridges that are kept free from snow by high winds .It is a small...

 Diapensia lapponica
RDB (vu), W&CA 8 Glenfinnan
Glenfinnan
Glenfinnan is a village in Lochaber area of the Highlands of Scotland. It is located at the northern end of Loch Shiel, at the foot of Glenfinnan.- Glenfinnan Monument :...

None 1951 No
Rannoch-rush Scheuchzeria palustris RDB (vu) Rannoch Moor
Rannoch Moor
Rannoch Moor is a large expanse of around 50 square miles of boggy moorland to the west of Loch Rannoch, in Perth and Kinross and Lochaber, Highland, partly northern Argyll and Bute, Scotland...

SSSI, NNR 1910 Yes
Least Adder's-tongue
Ophioglossum lusitanicum
Ophioglossum lusitanicum is a small fern of the family Ophioglossaceae. It is categorised as Vulnerable by the IUCN .- Description :...

 
Ophioglossum lusitanicum
RDB (vu) St Agnes, Isles of Scilly
Isles of Scilly
The Isles of Scilly form an archipelago off the southwestern tip of the Cornish peninsula of Great Britain. The islands have had a unitary authority council since 1890, and are separate from the Cornwall unitary authority, but some services are combined with Cornwall and the islands are still part...

SSSI 1950 No
Lundy Cabbage
Lundy cabbage
Lundy cabbage is a species of primitive brassicoid, endemic to the island of Lundy off the southwestern coast of Great Britain, where it is sufficiently isolated to have formed its own species, with its endemic insect pollinators. The Lundy cabbage Coincya wrightii grows only on the eastern cliffs...

 Coincya wrightii
RDB (vu), W&CA 8 Lundy
Lundy
Lundy is the largest island in the Bristol Channel, lying off the coast of Devon, England, approximately one third of the distance across the channel between England and Wales. It measures about at its widest. Lundy gives its name to a British sea area and is one of the islands of England.As of...

, Devon
Devon
Devon is a large county in southwestern England. The county is sometimes referred to as Devonshire, although the term is rarely used inside the county itself as the county has never been officially "shired", it often indicates a traditional or historical context.The county shares borders with...

No
Alpine Rock-cress
Arabis alpina
Arabis alpina is a flowering plant in the family Brassicaceae that grows in mountainous areas of Europe, north Africa, central and eastern Asia and parts of North America. In the British Isles, it is only known to occur in a few locations in the Cuillin Ridge of the Isle of Skye.The stems of A...

 Arabis alpina
RDB (vu) Isle of Skye No
Bristol Rock-cress Arabis scabra RDB (vu), W&CA 8 Avon Gorge
Avon Gorge
The Avon Gorge is a 1.5-mile long gorge on the River Avon in Bristol, England. The gorge runs south to north through a limestone ridge west of Bristol city centre, and about 3 miles from the mouth of the river at Avonmouth. The gorge forms the boundary between the unitary authorities of...

, Bristol
Bristol
Bristol is a city, unitary authority area and ceremonial county in South West England, with an estimated population of 433,100 for the unitary authority in 2009, and a surrounding Larger Urban Zone with an estimated 1,070,000 residents in 2007...

No
Lady's-slipper
Cypripedium calceolus
Cypripedium calceolus is a lady's-slipper orchid, and the type species of the genus Cypripedium.It is a widespread plant worldwide, found from Europe east through Asia to the Pacific Ocean. It is found in open woodland on moist calcareous soils. It is found in continental Europe growing in the...

 Cypripedium calceolus
RDB (cr), W&CA 8 Wharfedale
Wharfedale
Wharfedale is one of the Yorkshire Dales in England. It is the valley of the River Wharfe. Towns and villages in Wharfedale include Buckden, Kettlewell, Conistone, Grassington, Hebden, Ilkley, Burley-in-Wharfedale, Otley, Pool-in-Wharfedale, Arthington, Collingham, and Wetherby...

Yes
Shetland Mouse-ear
Shetland Mouse-ear
Cerastium nigrescens, commonly known as the Shetland Mouse-ear, Shetland Mouse-eared Chickweed or Edmondston's Chickweed, is an endemic plant found in Shetland, Scotland....

 Cerastium nigrescens
RDB (vu) Unst, Shetland 1837 No
Teesdale Sandwort Minuartia stricta Widdybank Fell, Teesdale
Teesdale
Teesdale is a dale, or valley, of the east side of the Pennines in England. Large parts of Teesdale fall within the North Pennines Area of Outstanding Natural Beauty - the second largest AONB in England and Wales. The River Tees rises below Cross Fell, the highest hill in the Pennines, and its...

No
Wild Cotoneaster Cotoneaster cambricus Great Orme Head No
Arran Whitebeam Sorbus arranensis
Sorbus arranensis
Sorbus arranensis, sometimes referred to as the Scottish or Arran Whitebeam is a species of plant in the Rosaceae family. It is endemic to the island of Arran in Scotland.-Range and habitat:...

Arran
Isle of Arran
Arran or the Isle of Arran is the largest island in the Firth of Clyde, Scotland, and with an area of is the seventh largest Scottish island. It is in the unitary council area of North Ayrshire and the 2001 census had a resident population of 5,058...

No
Arran Service-tree Sorbus pseudofennica
Sorbus pseudofennica
Sorbus pseudofennica is a species of plant in the Rosaceae family. It is a naturally occurring hybrid caused by the Rock Whitebeam hybridising with the Rowan , then crossing back with S. aucuparia...

Arran
Isle of Arran
Arran or the Isle of Arran is the largest island in the Firth of Clyde, Scotland, and with an area of is the seventh largest Scottish island. It is in the unitary council area of North Ayrshire and the 2001 census had a resident population of 5,058...

No
Catacol Whitebeam Sorbus pseudomeinichii
Sorbus pseudomeinichii
Sorbus pseudomeinichii, known as Catacol Whitebeam, is a rare tree endemic to the Isle of Arran in south west Scotland. It is believed to have arisen as a hybrid of the native Rowan and the Cut-leaved Whitebeam which is in turn a Rowan/Arran Whitebeam hybrid...

Arran
Isle of Arran
Arran or the Isle of Arran is the largest island in the Firth of Clyde, Scotland, and with an area of is the seventh largest Scottish island. It is in the unitary council area of North Ayrshire and the 2001 census had a resident population of 5,058...

No
Wilmott's Whitebeam Sorbus willmottiana Avon Gorge
Avon Gorge
The Avon Gorge is a 1.5-mile long gorge on the River Avon in Bristol, England. The gorge runs south to north through a limestone ridge west of Bristol city centre, and about 3 miles from the mouth of the river at Avonmouth. The gorge forms the boundary between the unitary authorities of...

No
Bristol Whitebeam Sorbus bristoliensis Avon Gorge
Avon Gorge
The Avon Gorge is a 1.5-mile long gorge on the River Avon in Bristol, England. The gorge runs south to north through a limestone ridge west of Bristol city centre, and about 3 miles from the mouth of the river at Avonmouth. The gorge forms the boundary between the unitary authorities of...

No
The sea-lavender
Sea-lavender
Limonium is a genus of 120 flower species. Members are also known as Sea Lavender, Statice, or Marsh-rosemary. Limonium is in Plumbaginaceae, the plumbago or leadwort family. Despite their common names, species are not related to the lavenders or to rosemary.The genus has a subcosmopolitan...

 Limonium paradoxum
St David's Head, Pembrokeshire
Pembrokeshire
Pembrokeshire is a county in the south west of Wales. It borders Carmarthenshire to the east and Ceredigion to the north east. The county town is Haverfordwest where Pembrokeshire County Council is headquartered....

No
The sea-lavender
Sea-lavender
Limonium is a genus of 120 flower species. Members are also known as Sea Lavender, Statice, or Marsh-rosemary. Limonium is in Plumbaginaceae, the plumbago or leadwort family. Despite their common names, species are not related to the lavenders or to rosemary.The genus has a subcosmopolitan...

 Limonium transwallianum
Giltar Point, Pembrokeshire
Pembrokeshire
Pembrokeshire is a county in the south west of Wales. It borders Carmarthenshire to the east and Ceredigion to the north east. The county town is Haverfordwest where Pembrokeshire County Council is headquartered....

No
The sea-lavender
Sea-lavender
Limonium is a genus of 120 flower species. Members are also known as Sea Lavender, Statice, or Marsh-rosemary. Limonium is in Plumbaginaceae, the plumbago or leadwort family. Despite their common names, species are not related to the lavenders or to rosemary.The genus has a subcosmopolitan...

 Limonium loganicum
Logan Rock
Logan Rock
The Logan Rock near the village of Treen in Cornwall, England, UK, is an example of a logan or rocking stone. Although it weighs some 80 tons, it was dislodged in 1824 by a group of British seamen, intent on showing what the Navy could do...

 to Carn Les Boel, Cornwall
Cornwall
Cornwall is a unitary authority and ceremonial county of England, within the United Kingdom. It is bordered to the north and west by the Celtic Sea, to the south by the English Channel, and to the east by the county of Devon, over the River Tamar. Cornwall has a population of , and covers an area of...

No
The eyebright Euphrasia campbelliae Isle of Lewis No
Wall Germander Teucrium chamaedrys Beachy Head
Beachy Head
Beachy Head is a chalk headland on the south coast of England, close to the town of Eastbourne in the county of East Sussex, immediately east of the Seven Sisters. The cliff there is the highest chalk sea cliff in Britain, rising to 162 m above sea level. The peak allows views of the south...

, Sussex
Sussex
Sussex , from the Old English Sūþsēaxe , is an historic county in South East England corresponding roughly in area to the ancient Kingdom of Sussex. It is bounded on the north by Surrey, east by Kent, south by the English Channel, and west by Hampshire, and is divided for local government into West...

No
Leafless Hawk's-beared Crepis praemorsa Cumbria
Cumbria
Cumbria , is a non-metropolitan county in North West England. The county and Cumbria County Council, its local authority, came into existence in 1974 after the passage of the Local Government Act 1972. Cumbria's largest settlement and county town is Carlisle. It consists of six districts, and in...

No
Wood Calamint Clinopodium menthifolium The Isle of Wight No
Radnor Lily Gagea bohemica Radnorshire
Radnorshire
Radnorshire is one of thirteen historic and former administrative counties of Wales. It is represented by the Radnorshire area of Powys, which according to the 2001 census, had a population of 24,805...

No
Sand Crocus Romulea columnae Dawlish Warren
Dawlish Warren National Nature Reserve
The Dawlish Warren National Nature Reserve is a National Nature Reserve near the village of Dawlish Warren in south Devon, England. It is part of the Exe Estuary Special Protection Area, and sits on a sand spit which runs across the mouth of the estuary....

No
Strapwort Corrigiola litoralis Slapton Ley
Slapton Ley
Slapton Ley is a lagoon on the south coast of Devon, England, separated from Start Bay by a shingle beach, known as Slapton Sands.It is the largest natural freshwater lake in South West England....

, Devon
Devon
Devon is a large county in southwestern England. The county is sometimes referred to as Devonshire, although the term is rarely used inside the county itself as the county has never been officially "shired", it often indicates a traditional or historical context.The county shares borders with...

Yes
Creeping Marshwort Apium repens Port Meadow, Oxford
Port Meadow, Oxford
Port Meadow is a large area of common land beside the River Thames to the north and west of Oxford, England.The meadow is an ancient area of grazing land, still used for horses and cattle, and has never been ploughed...

Yes
Fen Ragwort Senecio paludosus Ely
Ely, Cambridgeshire
Ely is a cathedral city in Cambridgeshire, England, 14 miles north-northeast of Cambridge and about by road from London. It is built on a Lower Greensand island, which at a maximum elevation of is the highest land in the Fens...

Yes
Triangular Club-rush Scirpus triqueter Tamar Estuary, Devon
Devon
Devon is a large county in southwestern England. The county is sometimes referred to as Devonshire, although the term is rarely used inside the county itself as the county has never been officially "shired", it often indicates a traditional or historical context.The county shares borders with...

Yes

Invertebrates

Species Conservation designation(s) of species Location at which found Conservation designation(s) of location Date of discovery at this location Formerly found elsewhere
The sphaeriusid beetle Sphaerius acaroides Eype Mouth
Eype Mouth
Eype Mouth is a natural break in a line of sea cliffs on the Jurassic Coast World Heritage Site in west Dorset on the south coast of England. The small River Eype drains into the sea at this point. Eype means 'a steep place' in Old English...

No
The weevil Sitona gemellatus Eype Mouth
Eype Mouth
Eype Mouth is a natural break in a line of sea cliffs on the Jurassic Coast World Heritage Site in west Dorset on the south coast of England. The small River Eype drains into the sea at this point. Eype means 'a steep place' in Old English...

Yes
Fisher’s estuarine moth 
Gortyna borelii lunata
Hamford Water, northeast Essex
Essex
Essex is a ceremonial and non-metropolitan county in the East region of England, and one of the home counties. It is located to the northeast of Greater London. It borders with Cambridgeshire and Suffolk to the north, Hertfordshire to the west, Kent to the South and London to the south west...

SSSI
Morris's Wainscot 
Photedes morrisii morrissii
The west Dorset
Dorset
Dorset , is a county in South West England on the English Channel coast. The county town is Dorchester which is situated in the south. The Hampshire towns of Bournemouth and Christchurch joined the county with the reorganisation of local government in 1974...

 coast
SSSI
Prostoma jenningsi
Prostoma jenningsi
Prostoma jenningsi is a species of ribbon worm known only from one site near Croston, Lancashire. It was described in 1971, and is believed to be the county's only endemic species...

A lake between Croston
Croston
-External links:**** chorley.gov.uk....

 and Bretherton
Bretherton
Bretherton is a small village and civil parish in the Borough of Chorley, Lancashire, England situated to the south west of Leyland and east of Tarleton. Its name suggests pre-conquest origins and its early history was closely involved with the manor house Bank Hall and the families who lived there...

, Lancashire
Lancashire
Lancashire is a non-metropolitan county of historic origin in the North West of England. It takes its name from the city of Lancaster, and is sometimes known as the County of Lancaster. Although Lancaster is still considered to be the county town, Lancashire County Council is based in Preston...

1967 No

Birds

Species Conservation designation(s) of species Location at which found Conservation designation(s) of location Date of discovery at this location Formerly found elsewhere
Common Crane
Common Crane
The Common Crane , also known as the Eurasian Crane, is a bird of the family Gruidae, the cranes.It is a large, stately bird and a medium-sized crane at 100–130 cm long, with a 180–240 cm wingspan and a weight of 4.5–6 kg...

 Grus grus (see note 1)
RDB The Norfolk Broads 1979 Yes

Now more widespread

This section lists species which were believed for a significant period of time to be present at just a single site, but have subsequently found to be more widespread (excluded are species which were found at a single site in the early stages of colonisation but quickly became established at others).

Now extinct

This section lists species which were believed for a significant period of time to be present at just a single site, but are now not known at that site and are believed to be extinct in Britain (excluded are species which declined to a single site for short period of time just prior to their extinction).
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