Plaster's Green Meadows

Site of Special Scientific Interest · 51.3472, -2.6729

Also within

Somerset County

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
ST532611 Favourable 4.14 2012-12-04

Habitats

Hedgerow scrub

Description

Area, 4.3 ha. 10.6 ac. Description The unimproved and traditionally managed species rich meadows at Plaster’s Green support a neutral grassland community of a type which is now rare throughout Britain. The site is situated on the slopes fringing the Lias Tablelands and is underlain by Rhaetic clays and, lower down the slope, Keuper Red Marl. The slowly permeable clay soils are slightly calcareous in nature and this is reflected in elements of the flora. The gently sloping meadows are characterised by the nationally rare common knapweed / crested dog’s tail Centaurea nigra / Cynosurus cristatus neutral grassland community. The dominant grasses include sweet vernal grass Anthoxanthum odoratum, crested dog's tail and Yorkshire fog Holcus lanatus, while quaking grass Briza media and yellow oat grass Trisetum flavescens are also frequent. There is a high component of herb species throughout the meadows including saw wort Serratula tinctoria, dyer’s greenweed Genista tinctoria, common knapweed, pepper saxifrage Silaum silaus, devil’s bit scabious Succisa pratensis, betony Betonica officinalis and spiny rest-harrow Ononis spinosa. The calcareous nature of the soil is reflected by the presence of cowslip Primula veris, fairy flax Linum catharticum, glaucous sedge Carex flacca, lady’s bedstraw Galium verum and occasional salad burnet Poterium sanguisorba. The meadows are bounded by hedges supporting numerous species including hawthorn Crataegus monogyna, wych elm Ulmus glabra, English elm Ulmus procera, hazel Corylus avellana and field maple Acer campestre. Hedgerow trees include ash Fraxinus excelsior, sweet chestnut Castanea sativa, holly Ilex aquifolium and oak Quercus sp.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
sweet vernal grass Anthoxanthum odoratum LC grass poaceae
quaking grass Briza media VU grass poaceae
crested dog's tail Cynosurus cristatus LC grass poaceae
Yorkshire fog Holcus lanatus LC grass poaceae
yellow oat grass Trisetum flavescens LC grass poaceae
betony Betonica officinalis VU herb lamiaceae
black knapweed Centaurea nigra LC herb asteraceae
lady's bedstraw Galium verum LC herb rubiaceae
dyer's greenweed Genista tinctoria LC herb fabaceae
fairy flax Linum catharticum LC herb linaceae
spiny rest-harrow Ononis spinosa Not listed in GB list herb fabaceae
salad burnet Poterium sanguisorba VU herb rosaceae
cowslip Primula veris LC herb primulaceae
saw wort Serratula tinctoria VU herb asteraceae
pepper saxifrage Silaum silaus EN herb saxifragaceae
devils-bit scabious Succisa pratensis VU herb caprifoliaceae
glaucus sedge Carex flacca LC sedge cyperaceae
hawthorn Crataegus monogyna LC shrub rosaceae
field maple Acer campestre LC tree aceraceae
sweet chestnut Castanea sativa LC tree fagaceae
hazel Corylus avellana LC tree corylaceae
ash Fraxinus excelsior LC tree oleaceae
holly Ilex aquifolium LC tree aquifoliaceae
wych elm Ulmus glabra LC tree ulmaceae
English elm Ulmus procera LC tree ulmaceae

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
Reddish buff
Acosmetia caliginosa
Critically Endangered Serratula tinctoria
Black-veined moth
Siona lineata
Critically Endangered Centaurea nigra
Straw belle
Aspitates gilvaria
Endangered Linum catharticum
Figure of eight
Diloba caeruleocephala
Endangered Crataegus spp.
Maple pug
Eupithecia inturbata
Endangered Acer campestre
The lappet
Gastropacha quercifolia
Endangered Crataegus monogyna
Duke of Burgundy
Hamearis lucina
Endangered Primula veris
Scarce vapourer
Orgyia recens
Endangered Corylus avellana, Crataegus spp., Ulmus spp.
Least minor
Photedes captiuncula
Endangered Carex flacca
White-letter hairstreak
Satyrium w-album
Endangered Ulmus glabra, Ulmus spp.
Mouse moth
Amphipyra tragopoginis
Vulnerable Crataegus spp., Poterium sanguisorba, Serratula tinctoria
The sprawler
Asteroscopus sphinx
Vulnerable Corylus avellana, Crataegus spp., Fraxinus excelsior, Ulmus spp.
Broom moth
Ceramica pisi
Vulnerable Ulmus spp.
Mottled umber
Erannis defoliaria
Vulnerable Acer campestre, Castanea sativa, Corylus avellana, Crataegus spp., Ulmus spp.
Marsh fritillary
Euphydryas aurinia
Vulnerable Succisa pratensis
Satyr pug
Eupithecia satyrata
Vulnerable Centaurea spp., Galium spp.
White-line dart
Euxoa tritici
Vulnerable Galium verum
Bedstraw hawk-moth
Hyles gallii
Vulnerable Galium spp.
The lackey
Malacosoma neustria
Vulnerable Corylus avellana, Crataegus monogyna, Ulmus spp.
Pale brindled
Phigalia pilosaria
Vulnerable Corylus avellana, Crataegus monogyna, Fraxinus excelsior, Ulmus glabra
Silver studded blue
Plebejus argus
Vulnerable Ononis spp.
Grizzled skipper
Pyrgus malvae
Vulnerable Poterium sanguisorba
Lead belle
Scotopteryx mucronata
Vulnerable Genista tinctoria
Early moth
Theria primaria
Vulnerable Crataegus monogyna
Pale eggar
Trichiura crataegi
Vulnerable Corylus avellana, Crataegus monogyna
Flounced chestnut
Agrochola helvola
Near Threatened Crataegus monogyna, Ulmus spp.
Beaded chestnut
Agrochola lychnidis
Near Threatened Crataegus monogyna
Grey chi
Antitype chi
Near Threatened Crataegus monogyna
Dusky-lemon sallow
Cirrhia gilvago
Near Threatened Ulmus glabra, Ulmus procera
The sallow
Cirrhia icteritia
Near Threatened Ulmus glabra
Small heath
Coenonympha pamphilus
Near Threatened Cynosurus cristatus
Large thorn
Ennomos autumnaria
Near Threatened Corylus avellana, Crataegus spp., Ulmus spp.
Dusky thorn
Ennomos fuscantaria
Near Threatened Fraxinus excelsior
Autumnal rustic
Eugnorisma glareosa
Near Threatened Galium spp.
Grey pug
Eupithecia subfuscata
Near Threatened Betonica officinalis, Centaurea spp., Crataegus monogyna
Double dart
Graphiphora augur
Near Threatened Crataegus spp., Ulmus spp.
Scarce forester
Jordanita globulariae
Near Threatened Centaurea nigra
Wall
Lasiommata megera
Near Threatened Holcus lanatus
Rosy minor
Litoligia literosa
Near Threatened Carex flacca
Dark-barred twin-spot carpet
Xanthorhoe ferrugata
Near Threatened Galium spp.

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

W21 — Hedgerow scrub, Mixed scrub

Crataegus monogyna-Hedera helix scrub

Matches 8 species from the description above: Corylus avellana, Crataegus monogyna, Fraxinus excelsior, Holcus lanatus, Ilex aquifolium, Poterium sanguisorba, Ulmus glabra, Ulmus procera

Hedera helix, Salix cinerea, Acer pseudoplatanus, Ilex aquifolium, Betula pendula, Corylus avellana, Fagus sylvatica, Quercus robur, Fraxinus excelsior, Malus sylvestris, Sorbus aria, Taxus baccata, Ulmus glabra, Ulmus procera, Sambucus nigra, Viburnum lantana, Euonymus europaeus, Cornus sanguinea, Juniperus communis, Ligustrum vulgare, Clematis vitalba, Rhamnus cathartica, Crataegus laevigata, Crataegus monogyna, Prunus spinosa, Juncus effusus, Plagiomnium undulatum, Brachythecium rutabulum, Kindbergia praelonga, Rhynchostegium confertum, Tamus communis, Heracleum sphondylium, Torilis japonica, Arum maculatum, Arctium minus, Cirsium arvense, Lonicera periclymenum, Moehringia trinervia, Silene dioica, Stellaria graminea, Stellaria holostea, Stellaria media agg., Calystegia sepium, Mercurialis perennis, Geranium robertianum, Iris foetidissima, Glechoma hederacea, Lamium purpureum, Origanum vulgare, Stachys sylvatica, Teucrium scorodonia, Allium ursinum, Hyacinthoides non-scripta, Circaea lutetiana, Rumex sanguineus, Anemone nemorosa, Ranunculus repens, Fragaria vesca, Geum urbanum, Potentilla sterilis, Poterium sanguisorba, Rosa arvensis, Rosa canina, Rubia peregrina, Rubus fruticosus agg., Galium aparine, Urtica dioica, Viola riviniana, Anisantha sterilis, Arrhenatherum elatius, Brachypodium pinnatum, Brachypodium sylvaticum, Bromopsis erecta, Dactylis glomerata, Elytrigia repens, Holcus lanatus, Holcus mollis, Poa trivialis, Asplenium scolopendrium, Pteridium aquilinum, Dryopteris filix-mas

W22 — Hedgerow scrub, Mixed scrub

Prunus spinosa-Rubus fruticosus scrub

Matches 3 species from the description above: Acer campestre, Corylus avellana, Holcus lanatus

Hedera helix, Acer campestre, Corylus avellana, Ulex europaeus, Prunus spinosa, Plagiomnium undulatum, Brachythecium rutabulum, Eurhynchium striatum, Kindbergia praelonga, Thuidium tamariscinum, Atrichum undulatum, Lophocolea bidentata, Achillea millefolium, Cardamine flexuosa, Lonicera periclymenum, Moehringia trinervia, Silene dioica, Silene uniflora, Stellaria media agg., Mercurialis perennis, Geranium robertianum, Stachys sylvatica, Teucrium scorodonia, Hyacinthoides non-scripta, Oxalis acetosella, Digitalis purpurea, Plantago lanceolata, Veronica chamaedrys, Armeria maritima, Rumex acetosa, Filipendula ulmaria, Geum urbanum, Rosa canina, Rubus fruticosus agg., Rubus idaeus, Galium aparine, Urtica dioica, Viola riviniana, Agrostis capillaris, Brachypodium sylvaticum, Dactylis glomerata, Festuca rubra, Holcus lanatus, Holcus mollis, Poa trivialis, Asplenium scolopendrium, Pteridium aquilinum, Dryopteris borreri, Dryopteris filix-mas

W23 — Brownfield, Hedgerow scrub

Ulex europaeus-Rubus fruticosus scrub

Matches 2 species from the description above: Anthoxanthum odoratum, Holcus lanatus

Hedera helix, Calluna vulgaris, Cytisus scoparius, Ulex europaeus, Kindbergia praelonga, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Achillea millefolium, Crepis capillaris, Hypochaeris radicata, Jacobaea vulgaris, Campanula rotundifolia, Jasione montana, Cerastium fontanum, Silene dioica, Teucrium scorodonia, Digitalis purpurea, Plantago lanceolata, Veronica chamaedrys, Veronica officinalis, Rumex acetosa, Rumex acetosella, Potentilla erecta, Rubus fruticosus agg., Rubus idaeus, Galium saxatile, Viola riviniana, Agrostis capillaris, Aira praecox, Anthoxanthum odoratum, Arrhenatherum elatius, Brachypodium sylvaticum, Dactylis glomerata, Deschampsia flexuosa, Festuca rubra, Holcus lanatus, Holcus mollis, Poa pratensis, Pteridium aquilinum