occurring

List of species occurring in Britain at just a single location

The following is a list of native plant and animal species which are found in Britain, 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

Key to conservation designations for sites:

NNR - National Nature Reserve
SSSI - Site of Special Scientific Interest

Currently found at just a single location

Vascular plants

This section currently lists non-critical species and critical species in the smaller apomictic genera; many microspecies in the apomictic genera Hieracium (hawkweeds), Rubus (brambles) and Taraxacum (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 lapponica	RDB (vu), W&CA 8	Glenfinnan	None	1951	No
Rannoch-rush Scheuchzeria palustris	RDB (vu)	Rannoch Moor	SSSI, NNR	1910	Yes
Small Adder's-tongue Ophioglossum lusitanicum	RDB (vu)	St Agnes, Isles of Scilly	SSSI	1950	No
Lundy Cabbage Coincya wrightii	RDB (vu), W&CA 8	Lundy, Devon			No
Alpine Rock-cress Arabis alpina	RDB (vu)	Isle of Skye			No
Bristol Rock-cress Arabis scabra	RDB (vu), W&CA 8	Avon Gorge, Bristol			No
Lady's-slipper Cypripedium calceolus	RDB (cr), W&CA 8	Wharfedale			Yes
Shetland Mouse-ear Cerastium nigrescens	RDB (vu)	Unst, Shetland		1837	No
Teesdale Sandwort Minuartia stricta		Widdybank Fell, Teesdale			No
Wild Cotoneaster Cotoneaster cambricus		Great Orme Head			No
Arran Whitebeam Sorbus arranensis		Arran			No
Arran Service-tree Sorbus pseudofennica		Arran			No
Catacol Whitebeam Sorbus pseudomeinichii		Arran			No
Wilmott's Whitebeam Sorbus willmottiana		Avon Gorge			No
Bristol Whitebeam Sorbus bristoliensis		Avon Gorge			No
The sea-lavender Limonium paradoxum		St David's Head, Pembrokeshire			No
The sea-lavender Limonium transwallianum		Giltar Point, Pembrokeshire			No
The sea-lavender Limonium loganicum		Land's End, Cornwall			No
The eyebright Euphrasia campbelliae		Isle of Lewis			No
Wall Germander Teucrium chamaedrys		Beachy Head, Sussex			No
Leafless Hawk's-beared Crepis praemorsa		Cumbria			No
Wood Calamint Clinopodium menthifolium		The Isle of Wight			No
Radnor Lily Gagea bohemica		Radnorshire			No
Sand Crocus Romulea columnae		Dawlish Warren			No
Strapwort Corrigiola litoralis	Slapton Ley, Devon			Yes
Creeping Marshwort Apium repens		Port Meadow, Oxford			Yes
Fen Ragwort Senecio paludosus		Ely			Yes
Triangular Club-rush Scirpus triqueter		Tamar Estuary, Devon			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			No
The weevil Sitona gemellatus		Eype Mouth			Yes
Fisher’s estuarine moth Gortyna borelii lunata		Hamford Water, northeast Essex	SSSI
Morris's Wainscot Photedes morrisii morrissii		The west Dorset coast	SSSI

Vertebrates

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

Notes

Common Crane, although occurring in fluctuating numbers as a scarce spring & autumn migrant through Britain, with occasional individuals or pairs wintering or summering, has only established a single breeding population, in the Norfolk Broads (see Cranes in Britain for more details); the species was thought to be quite widespread in the Middle Ages, but the term 'crane' was also often applied to Grey Heron, making a reliable determination of historical status difficult