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

Plant communities

W21 — Hedgerow scrub, Mixed scrub

Crataegus monogyna-Hedera helix scrub

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

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

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