King Lud's Entrenchment & The Drift

Site of Special Scientific Interest · 52.8412, -0.7233

Condition (Natural England)

Unfavourable Recovering (6) Unfavourable No Change (1)
UnitFeatureConditionArea (ha)Assessed
SK857300 Unfavourable Recovering 1.17 2013-09-30
SK860278 Unfavourable Recovering 0.97 2014-07-24
SK861280 Unfavourable Recovering 9.34 2014-07-24
SK864278 Unfavourable Recovering 2.4 2014-07-24
SK864291 Unfavourable Recovering 2.89 2013-09-30
SK867279 Unfavourable No Change 3.82 2022-12-22
SK871279 Unfavourable Recovering 3.31 2022-12-22

Geology & landscape

Rock Type: Limestone

Description

Area,28.79 ha71.12 ac O Description The site includes some of the best remaining examples of limestone grassland in Lincolnshire and Leicestershire and is representative of swards developed on soft limestones in southern and central England. Biology The site contains some fine examples of limestone grassland. The basic sward components are tor grass Brachypodium pinnatum, cock's foot Dactylis glomerata, crested dog's tail Cynosurus cristatus and red fescue Festuca rubra, while typical herbs include salad burnet Poterium sanguisorba, burnet saxifrage Pimpinella saxifraga, field scabious Knautia arvensis, germander speedwell Veronica chamaedrys, bird's foot trefoil Lotus corniculatus and perforate St. John'swort Hypericum perforatum. Plants of restricted distribution which occur on the site include autumn felwort Gentianella amarella, basil thyme Acinos arvensis, horseshoe vetch Hippocrepis comosand purple milk vetch Astragalus danicus. Additional interest is provided by an area of semi natural broad leaved woodland dominated by ash Fraxinus excelsior and sycamore Acer pseudoplatanus.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
tor grass Brachypodium pinnatum LC grass poaceae
crested dog's tail Cynosurus cristatus LC grass poaceae
cock's foot Dactylis glomerata LC grass poaceae
red fescue Festuca rubra LC grass poaceae
basil thyme Acinos arvensis Not listed in GB list herb lamiaceae
purple milk vetch Astragalus danicus EN herb fabaceae
autumn gentian Gentianella amarella LC herb gentianaceae
perforated St John's wort Hypericum perforatum LC herb hypericaceae
field scabious Knautia arvensis LC herb caprifoliaceae
birdsfoot trefoil Lotus corniculatus LC herb fabaceae
burnet saxifrage Pimpinella saxifraga NT herb apiaceae
salad burnet Poterium sanguisorba VU herb rosaceae
birdseye speedwell Veronica chamaedrys LC herb plantaginaceae
sycamore Acer pseudoplatanus Not listed in GB list tree aceraceae
ash Fraxinus excelsior LC tree oleaceae

Insects to look out for

These moths, butterflies and beetles are known to feed on plants recorded at this site, and carry a notable UK conservation status — but a host-plant being present doesn't mean the insect has actually been recorded here. Treat this as "worth watching for," not a confirmed sighting.

SpeciesStatusVia host-plant
Black-veined moth
Siona lineata
Critically Endangered Lotus corniculatus
New forest
Zygaena viciae
Critically Endangered Lotus corniculatus
Straw belle
Aspitates gilvaria
Endangered Lotus corniculatus
Wood white
Leptidea sinapis
Endangered Lotus corniculatus
Heath fritillary
Melitaea athalia
Endangered Veronica chamaedrys
Slender scotch
Zygaena loti
Endangered Lotus corniculatus
Mouse moth
Amphipyra tragopoginis
Vulnerable Lotus corniculatus, Poterium sanguisorba
The sprawler
Asteroscopus sphinx
Vulnerable Fraxinus excelsior
Mottled umber
Erannis defoliaria
Vulnerable Acer pseudoplatanus
Dingy skipper
Erynnis tages
Vulnerable Lotus corniculatus
Marsh fritillary
Euphydryas aurinia
Vulnerable Knautia arvensis
Satyr pug
Eupithecia satyrata
Vulnerable Hypericum spp.
Grayling
Hipparchia semele
Vulnerable Festuca rubra
Pale brindled
Phigalia pilosaria
Vulnerable Fraxinus excelsior
Silver studded blue
Plebejus argus
Vulnerable Lotus corniculatus
Grizzled skipper
Pyrgus malvae
Vulnerable Poterium sanguisorba
Large nutmeg
Apamea anceps
Near Threatened Dactylis glomerata
Small heath
Coenonympha pamphilus
Near Threatened Cynosurus cristatus, Festuca spp.
Large thorn
Ennomos autumnaria
Near Threatened Acer pseudoplatanus
Dusky thorn
Ennomos fuscantaria
Near Threatened Fraxinus excelsior
Grey pug
Eupithecia subfuscata
Near Threatened Pimpinella saxifraga
Wall
Lasiommata megera
Near Threatened Dactylis glomerata
Rosy minor
Litoligia literosa
Near Threatened Dactylis glomerata
The blackneck
Lygephila pastinum
Near Threatened Astragalus spp.
Swallowtail papilio
Papilio machaon
Near Threatened Pimpinella saxifraga

Host-plant data: Cook et al. (2025), Traits data for the butterflies and macro-moths of Great Britain and Ireland, 2024, UK Centre for Ecology & Hydrology / Butterfly Conservation; and Padovani et al. (2020), Database of Insects and their Food Plants (DBIF), UK Centre for Ecology & Hydrology (both Open Government Licence). Contains data supplied by UK Centre for Ecology & Hydrology.