Tudor Farm Bank

Site of Special Scientific Interest · 51.7705, -2.6201

Condition (Natural England)

Unfavourable Recovering (1)
UnitFeatureConditionArea (ha)Assessed
SO573081 Unfavourable Recovering 3.65 2016-06-29

Geology & landscape

Geological Period: Carboniferous · Rock Type: Limestone, Sandstone

Birds & fish recorded

Birds

SpeciesSeason
cuckoo Unknown

Description

Description The site represents a contrast to the extensive limestone grasslands of the Cotswolds in east Gloucestershire and is near the western most edge of the natural distribution of this grassland type in Britain. Tudor Farm Bank is believed to be the largest remaining site of its kind in west Gloucestershire. Tudor Farm Bank is situated in the village of Clearwell on the western edge of the Forest of Dean. The south west facing slope occurs on a minor escarpment, composed largely of Carboniferous Limestones, which forms a ring around the Forest of Dean. The site is of special interest for its calcareous limestone grassland community characterised by abundant upright brome Bromus erectus, a type which is nationally scarce and declining within Britain. The grassland supports many other species of grass and sedge including abundant sheep’s fescue Festuca ovina, quaking grass Briza media and glaucous sedge Carex flacca with a wide range of lime loving plants calcicoles. These include species such as rock rose Helianthemum nummularium, rest-harrow Ononis repens, carmine thistle Carlina vulgaris, common milkwort Polygala vulgaris, dwarf thistle Cirsium acaule, yellow wort Blackstonia perfoliata, fairy flax Linum catharticum, wild thyme Thymus praecox and its uncommon relative, large thyme Thymus polytrichus. The presence of abundant thyme and common knapweed Centaurea nigra in particular, is typical of this grassland type where the occurrence of upright brome has probably been promoted by a period of no or low intensity grazing in recent years. At the top and bottom of the slope the grassland becomes more neutral in character reflecting the deeper soils and localised enrichment caused by the preference of grazing horses to dung in these areas. A similar change to neutral grassland occurs towards the western end of the site, largely due to the decrease in slope and the greater influence of the Old Red Sandstone geology. In these areas the vegetation is characterised by abundant crested dog's tail Cynosurus cristatus and common knapweed. Other typical species include red fescue Festuca rubra, yellow oat grass Trisetum flavescens, smooth hawk’s beard Crepis capillaris, meadow vetchling Lathyrus pratensis, common bird’s foot trefoil Lotus corniculatus, yarrow Achillea millefolium and ribwort plantain Plantago lanceolata. Thickets of developing scrub composed of a mix of hawthorn Crataegus monogyna, blackthorn Prunus spinosa and bramble Rubus fruticosus are frequent and form a dense pocket in one corner of the site. Plants associated with woodland occur here including false brome Brachypodium sylvaticum, dog’s mercury Mercurialis perennis, cuckoo pint Arum maculatum, hart’s tongue fern Asplenium scolopendrium, primrose Primula vulgaris and the nationally scarce stinking hellebore Helleborus foetidus. Features that add further to the interest of the site include limestone outcrops and hedgerows of hawthorn, blackthorn and hazel Corylus avellana, some of which support abundant dead wood and include mature trees of ash Fraxinus excelsior, oak Quercus robur and birch Betula pendula. Several large ash and oak also occur across the slope. Invertebrates recorded from the site include butterfly species which are typical of habitats with long grass and scattered scrub including large skipper Ochlodes venata, ringlet Aphantopus hyperantus, marbled white Melanargia galatheaa and common blue Polyommatus icarus. Ant hills of the yellow meadow ant Lasius flavus are frequent across the site.

Species mentioned

English name
search for this in other sites
Latin name
search with Google
IUCN / Red List Type Family
yellow meadow ant Lasius flavus Not listed in GB list ant formicinae
cuckoo Cuculus canorus VU (Breeding) bird-cuckoo cuculidae
ringlet Aphantopus hyperantus LC butterfly nymphalidae
common blue Polyommatus icarus LC butterfly lycaenidae
hart's-tongue fern Asplenium scolopendrium LC fern aspleniaceae
wood false brome Brachypodium sylvaticum LC grass poaceae
quaking grass Briza media VU grass poaceae
upright brome Bromus erectus Not listed in GB list grass poaceae
crested dog's tail Cynosurus cristatus LC grass poaceae
sheep's fescue Festuca ovina LC grass poaceae
red fescue Festuca rubra LC grass poaceae
yellow oat grass Trisetum flavescens LC grass poaceae
yarrow Achillea millefolium LC herb asteraceae
lords and ladies Arum maculatum LC herb araceae
yellowwort Blackstonia perfoliata LC herb gentianaceae
carline thistle Carlina vulgaris LC herb asteraceae
black knapweed Centaurea nigra LC herb asteraceae
dwarf thistle Cirsium acaule VU herb asteraceae
smooth hawk's beard Crepis capillaris LC herb asteraceae
rock roses Helianthemum nummularium VU herb cistaceae
foetid hellebore Helleborus foetidus LC herb ranunculaceae
meadow vetchling Lathyrus pratensis LC herb fabaceae
fairy flax Linum catharticum LC herb linaceae
birdsfoot trefoil Lotus corniculatus LC herb fabaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
common rest-harrow Ononis repens VU herb fabaceae
ribwort plantain Plantago lanceolata LC herb plantaginaceae
common milkwort Polygala vulgaris VU herb polygalaceae
primrose Primula vulgaris LC herb primulaceae
bramble Rubus fruticosus LC herb rosaceae
wild thyme Thymus polytrichus Not listed in GB list herb lamiaceae
creeping thyme Thymus praecox Not listed in GB list herb lamiaceae
glaucus sedge Carex flacca LC sedge cyperaceae
hawthorn Crataegus monogyna LC shrub rosaceae
blackthorn Prunus spinosa LC shrub rosaceae
birch Betula pendula LC tree betulaceae
hazel Corylus avellana LC tree corylaceae
ash Fraxinus excelsior LC tree oleaceae
common oak Quercus robur LC tree fagaceae

Plant communities

W20 — Montane scrub

Salix lapponum-Luzula sylvatica scrub

Salix arbuscula, Salix cinerea, Salix lapponum, Salix myrsinites, Salix phylicifolia, Salix reticulata, Empetrum nigrum, Calluna vulgaris, Salix lanata, Vaccinium myrtillus, Vaccinium uliginosum, Carex atrata, Carex bigelowii, Carex binervis, Carex flacca, Luzula multiflora, Luzula sylvatica, Huperzia selago, Selaginella selaginoides, Aulacomnium palustre, Mnium hornum, Philonotis fontana, Plagiomnium undulatum, Rhizomnium punctatum, Dicranum bonjeanii, Dicranum majus, Dicranum scoparium, Fissidens adianthoides, Racomitrium lanuginosum, Calliergonell cuspidatum, Ctenidium molluscum, Hylocomium splendens, Hypnum callichroum, Hypnum cupressiforme, Palustriella commutatum, Plagiothecium denticulatum, Plagiothecium undulatum, Pleurozium schreberi, Ptilium crista-castrensis, Rhytidiadelphus loreus, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Sanionia uncinata, Scorpidium revolvens, Thuidium tamariscinum, Atrichum undulatum, Polytrichastrum alpinum, Sphagnum capillifolium, Sphagnum fallax, Sphagnum girgensohnii, Sphagnum palustre, Sphagnum russowii, Sphagnum squarrosum, Sphagnum subnitens, Sphagnum teres, Barbilophozia barbata, Chiloscyphus polyanthos, Diplophyllum albicans, Lophocolea bidentata, Plagiochila porelloides, Ptilidium ciliare, Scapania undulata, Cladonia squamosa, Peltigera canina, Angelica sylvestris, Caltha palustris, Hieraclium spp., Saussurea alpina, Solidago virgaurea, Campanula rotundifolia, Succisa pratensis, Valeriana officinalis, Rhodiola rosea, Vaccinium vitis-idaea, Thymus praecox, Epilobium anagallidifolium, Dactylorhiza viridis, Euphrasia officinalis, Rhinanthus minor, Oxalis acetosella, Oxyria digyna, Polygonum viviparum, Rumex acetosa, Anemone nemorosa, Ranunculus acris, Thalictrum alpinum, Alchemilla alpina, Alchemilla glabra, Filipendula ulmaria, Geum rivale, Galium boreale, Galium saxatile, Saxifraga aizoides, Saxifraga hypnoides, Saxifraga oppositifolia, Saxifraga stellaris, Viola riviniana, Agrostis canina, Agrostis capillaris, Anthoxanthum odoratum, Deschampsia cespitosa, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Nardus stricta, Dryopteris dilatata, Phegopteris connectilis

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