May Hill

Site of Special Scientific Interest · 51.8899, -2.4448

Condition (Natural England)

Unfavourable Recovering (1)
UnitFeatureConditionArea (ha)Assessed
SO694213 Unfavourable Recovering 32.53 2024-03-15

Habitats

Bracken scrub

Geology & landscape

Geological Period: Silurian

Description

Description The acidic grassland and heath vegetation represented on this site overlies Silurian sandstones. It is not found elsewhere in the county. The grassland is largely composed of common bent Agrostis capillaris, sheep’s fescue Festuca ovina and Yorkshire fog Holcus lanatus with dense stands of gorse Ulex gallii and U. europaea and bracken Pteridium aquilinum which covers a large proportion of the site. A small amount of bell heather Erica cinerea and ling Calluna vulgaris is also present. Several wet flushes give rise to acidic marshy grassland habitat dominated by soft rush Juncus effusus and jointed rush J. articulatus. The site is grazed by cattle or sheep and measures are being taken to control the spread of gorse and bracken.

Species mentioned

English name
search for this in other sites
Latin name
search with Google
IUCN / Red List Type Family
bracken Pteridium aquilinum LC fern dennstaedtiaceae
common bent Agrostis capillaris LC grass poaceae
sheep's fescue Festuca ovina LC grass poaceae
Yorkshire fog Holcus lanatus LC grass poaceae
soft rush Juncus effusus LC rush juncaceae
western gorse Ulex gallii LC shrub leguminosae
bell heather or ling Calluna vulgaris NT shrub dwarf ericaceae
bell heather Erica cinerea NT shrub dwarf ericaceae

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
Shoulder-striped clover
Heliothis maritima
Endangered Calluna vulgaris, Erica cinerea
Broom moth
Ceramica pisi
Vulnerable Calluna vulgaris, Pteridium aquilinum
Satyr pug
Eupithecia satyrata
Vulnerable Calluna vulgaris
Grayling
Hipparchia semele
Vulnerable Festuca ovina
True lover's knot
Lycophotia porphyrea
Vulnerable Calluna vulgaris, Erica cinerea
Silver studded blue
Plebejus argus
Vulnerable Calluna vulgaris, Erica cinerea, Ulex spp.
Pale eggar
Trichiura crataegi
Vulnerable Calluna vulgaris, Erica cinerea
Flounced chestnut
Agrochola helvola
Near Threatened Calluna vulgaris
Garden tiger
Arctia caja
Near Threatened Pteridium aquilinum
Small heath
Coenonympha pamphilus
Near Threatened Agrostis spp., Festuca spp.
Grey scalloped
Dyscia fagaria
Near Threatened Calluna vulgaris, Erica cinerea
Autumnal rustic
Eugnorisma glareosa
Near Threatened Calluna vulgaris, Erica cinerea, Festuca ovina
Silver-spotted skipper
Hesperia comma
Near Threatened Festuca ovina
Weaver's wave
Idaea contiguaria
Near Threatened Calluna vulgaris
Wall
Lasiommata megera
Near Threatened Agrostis spp., Holcus lanatus
Rosy minor
Litoligia literosa
Near Threatened Festuca ovina

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.

Plant communities

W25 — Bracken scrub

Pteridium aquilinum-Rubus fruticosus underscrub

Matches 3 species from the description above: Agrostis capillaris, Holcus lanatus, Pteridium aquilinum

Hedera helix, Acer pseudoplatanus, Fagus sylvatica, Quercus robur, Fraxinus excelsior, Sambucus nigra, Ulex europaeus, Crataegus monogyna, Prunus spinosa, Luzula multiflora, Mnium hornum, Brachythecium rutabulum, Kindbergia praelonga, Angelica sylvestris, Conopodium majus, Heracleum sphondylium, Arum maculatum, Cirsium arvense, Lonicera periclymenum, Silene dioica, Stellaria holostea, Mercurialis perennis, Geranium robertianum, Glechoma hederacea, Teucrium scorodonia, Hyacinthoides non-scripta, Chamerion angustifolium, Circaea lutetiana, Digitalis purpurea, Rumex acetosa, Anemone nemorosa, Ficaria verna, Potentilla erecta, Rosa arvensis, Rosa canina, Rubus fruticosus agg., Rubus idaeus, Galium aparine, Galium mollugo sens.lat., Galium saxatile, Urtica dioica, Viola riviniana, Agrostis capillaris, Anthoxanthum odoratum, Arrhenatherum elatius, Dactylis glomerata, Festuca rubra, Holcus lanatus, Holcus mollis, Poa trivialis, Pteridium aquilinum, Dryopteris dilatata, Dryopteris filix-mas