Alex Farm Pastures

Site of Special Scientific Interest · 51.0973, 0.8077

Also within

Kent County

Condition (Natural England)

Unfavourable No Change (1)
UnitFeatureConditionArea (ha)Assessed
TQ966368 Unfavourable No Change 4.54 2021-02-12

Birds & fish recorded

Birds

SpeciesSeason
cuckoo Unknown

Description

Description This site consists of two adjoining pastures separated by a small pond and shallow stream. The pastures represent one of the best surviving examples in Kent of unimproved neutral grassland, a nationally rare habitat. The grassland sward contains a range of plant species characteristic of slightly acidic Wealden clay and supports several scarce butterflies. Though grazed in the past by either cattle or sheep the pastures have not been grazed by stock for many years. Some of the grassland has been lost to encroachment by bramble Rubus fruticosus and hawthorn Crataegus monogyna, although areas of high species diversity are maintained by rabbit grazing. The pastures are a type of unimproved herb rich neutral to slightly acidic grassland, characterised by heath grass Danthonia decumbens, crested dog's tail Cynosurus cristatus and common knapweed Centaurea nigra. The grasses include a variety of species, such as common bent Agrostis capillaris, creeping bent Agrostis stolonifera, sheep’s fescue Festuca ovina and red fescue F. rubra. Features of the sward are the abundance of dyer’s greenweed Genista tinctoria and pepper saxifrage Silaum silaus and the presence of sneezewort Achillea ptarmica and spring sedge Carex caryophyllea. Other widespread and frequent species are devil's bit scabious Succisa pratensis, common knapweed, cuckoo-flower Cardamine pratensis, adder's tongue fern Ophioglossum vulgatum and tormentil Potentilla erecta. There is a large population of common spotted orchid Dactylorhiza fuchsii. Glaucous sedge Carex flacca and hedge bedstraw Galium album occur where there is base enrichment. The pond adds to the diversity of the site, supporting species such as water violet Hottonia palustris and water dropwort Oenanthe aquatica. The pastures also support a number of declining butterfly species, including the nationally scarce, 1, pearl bordered fritillary Boloria euphrosyne and the only known colony in Kent of the small pearl bordered fritillary B. selene. Other species of interest are grizzled skipper Pyrgus malvae and dingy skipper Erynnis tages. 1 Nationally scarce, recorded from between 16 and 100 10km x 10km squares in Britain.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
pearl-bordered fritillary Boloria euphrosyne VU butterfly nymphalidae
dingy skipper Erynnis tages LC butterfly hesperiidae
grizzled skipper Pyrgus malvae VU butterfly hesperiidae
adders-tongue fern Ophioglossum vulgatum LC fern ophioglossaceae
common bent Agrostis capillaris LC grass poaceae
creeping bent Agrostis stolonifera LC grass poaceae
crested dog's tail Cynosurus cristatus LC grass poaceae
heath grass Danthonia decumbens NT grass poaceae
sheep's fescue Festuca ovina LC grass poaceae
sneezewort Achillea ptarmica LC herb asteraceae
cuckoo-flower Cardamine pratensis LC herb brassicaceae
black knapweed Centaurea nigra LC herb asteraceae
spotted orchids Dactylorhiza fuchsii LC herb orchidaceae
white bedstraw Galium album LC herb rubiaceae
dyer's greenweed Genista tinctoria LC herb fabaceae
water violet Hottonia palustris VU herb primulaceae
fine leaved water-dropwort Oenanthe aquatica VU herb apiaceae
tormentil Potentilla erecta LC herb rosaceae
bramble Rubus fruticosus LC herb rosaceae
pepper saxifrage Silaum silaus EN herb saxifragaceae
devils-bit scabious Succisa pratensis VU herb caprifoliaceae
spring-sedge Carex caryophyllea NT sedge cyperaceae
glaucus sedge Carex flacca LC sedge cyperaceae
hawthorn Crataegus monogyna LC shrub rosaceae

Plant communities

A9 — Fast flowing river and stream, Marginal and inundation, Pond ditch and canal, Sluggish river and stream

Potamogeton natans community

Schoenoplectus lacustris, Juncus bulbosus, Sparganium angustifolium, Sparganium erectum, Sparganium minimum, Alisma plantago-aquatica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Elodea canadensis, Lemna minor, Lemna trisulca, Nymphaea alba, Callitriche platycarpa, Callitriche stagnalis, Littorella uniflora, Potamogeton natans, Ranunculus trichophyllus, Glyceria fluitans, Chara subspinosa

A14 — Fast flowing river and stream

Myriophyllum alterniflorum community

Isolepis fluitans, Juncus bulbosus, Fontinalis antipyretica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Lemna minor, Callitriche stagnalis, Littorella uniflora, Potamogeton filiformis, Potamogeton gramineus, Potamogeton natans, Ranunculus peltatus, Chara spp., Nitella hyalina

A17 — Chalk river and stream, Fast flowing river and stream

Ranunculus penicillatus ssp. pseudofluitans community

Berula erecta, Nasturtium officinale, Elodea canadensis, Lemna minor, Callitriche stagnalis, Veronica beccabunga, Polygonum amphibium, Polygonum hydropiper, Potamogeton crispus, Potamogeton pectinatus, Ranunculus penicillatus ssp. pseudofluitans

A18 — Fast flowing river and stream

Ranunculus fluitans community

Fontinalis antipyretica, Fontinalis squamosa var. curnowii, Myriophyllum alterniflorum, Myriophyllum spicatum, Elodea canadensis, Mentha aquatica, Lemna gibba, Lemna minor, Potamogeton perfoliatus, Ranunculus fluitans, Glyceria fluitans, Phalaris arundinacea

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