Sudborough Green Lodge Meadows

Site of Special Scientific Interest · 52.4467, -0.5740

Condition (Natural England)

Favourable (1)
UnitFeatureConditionArea (ha)Assessed
SP970841 Favourable 13.63 2020-07-29

Geology & landscape

Rock Type: Chalk, Glacial Till, Limestone

Landscape processes: Glacial

Description

Area, 13.5 hectares 33.35 ac Description Two adjacent hay meadows on gently undulating boulder clay, the larger of which is agriculturally unimproved with extensive medieval ridge and furrow. The sward mostly comprises a characteristic example of the crested dog’s tail common knapweed lady’s bedstraw sub community. In discrete areas an uncommon upright brome Bromus erectus occurs. The smaller meadow is of a semi improved but herb rich character and is managed similarly. The major grassland type has a widespread distribution in Britain though centred on the more calcareous of the Midland clay lands. Agricultural change has drastically reduced its former extent and this site is now the largest and best, traditionally managed example of its kind in Northamptonshire. The upright brome community is of considerable scientific interest since it is believed to be restricted to very few localities in the East Midlands and is regarded as a link between unimproved mesotrophic grasslands* and those of chalk and limestone soils. The smaller hay meadow is the result of an experiment to recreate attractive grasslands. It offers great potential for research in this subject. The sward is a typically variable mixture of grasses and herbs. Of the former, red fescue Festuca rubra, sweet vernal grass Anthoxanthum odoratum, common bent Agrostis capillaris and Yorkshire fog Holcus lanatus are most frequent. Other grasses include quaking grass Briza media, downy oat grass and meadow oat grass Avenula pubescens, A. pratense and yellow oat grass Trisetum flavescens. Many herb species occur abundantly, e.g. common knapweed Centaurea nigra, common bird’s foot trefoil Lotus corniculatus, cowslip Primula veris, yellow rattle Rhinanthus minor, ribwort plantain Plantago lanceolata, rough hawkbit Leontodon hispidus and clovers Trifolium species. The poorly drained furrows and a damp strip of unmanaged coarse grassland support a distinct community type that of Yorkshire fog tufted hair grass. Those parts of the larger meadow where the soil is most freely drained and with a high lime content also show marked botanical differences. Upright brome, salad burnet Poterium sanguisorba dwarf thistle Cirsium acaule and sedge Carex flacca are locally abundant. Among the more notable species are fairy flax Linum catharticum, green winged orchid Anacamptis morio, adder’s tongue Ophioglossum vulgatum, pepper saxifrage Silaum silaus and common milkwort Polygala vulgaris. Ponds, scattered scrub, mature willow trees, a ditch side community of tall herbs and bordering hedgerows all provide additional wildlife habitats. The presence of wild pear Pyrus pyraster gives added interest.* Mesotrophic grasslands are those typically of deep loams or clays comprising species showing a preference for soils that are neither too acid nor too alkaline and neither too wet not too dry. They constitute the majority of the well drained permanent agricultural grasslands used for grazing and mowing.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
adders-tongue fern Ophioglossum vulgatum LC fern ophioglossaceae
common bent Agrostis capillaris LC grass poaceae
sweet vernal grass Anthoxanthum odoratum LC grass poaceae
downy oat grass Avenula pubescens LC grass poaceae
quaking grass Briza media VU grass poaceae
upright brome Bromus erectus Not listed in GB list grass poaceae
red fescue Festuca rubra LC grass poaceae
Yorkshire fog Holcus lanatus LC grass poaceae
yellow oat grass Trisetum flavescens LC grass poaceae
green-winged orchid Anacamptis morio NT herb orchidaceae
black knapweed Centaurea nigra LC herb asteraceae
dwarf thistle Cirsium acaule VU herb asteraceae
rough hawkbit Leontodon hispidus LC herb asteraceae
fairy flax Linum catharticum LC herb linaceae
birdsfoot trefoil Lotus corniculatus LC herb fabaceae
ribwort plantain Plantago lanceolata LC herb plantaginaceae
common milkwort Polygala vulgaris VU herb polygalaceae
salad burnet Poterium sanguisorba VU herb rosaceae
cowslip Primula veris LC herb primulaceae
yellow-rattle Rhinanthus minor DD herb orobanchaceae
pepper saxifrage Silaum silaus EN herb saxifragaceae
glaucus sedge Carex flacca LC sedge cyperaceae
a wild pear Pyrus pyraster Not listed in GB list tree rosaceae

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