Valley of Stones

Site of Special Scientific Interest · 50.6877, -2.5711

Condition (Natural England)

Unfavourable Declining (2) Favourable (3)
UnitFeatureConditionArea (ha)Assessed
SY593877 Unfavourable Declining 16.1 2024-10-01
SY594885 Favourable 4.9 2024-10-01
SY597877 Favourable 8.1 2011-05-19
SY598874 Unfavourable Declining 32.1 2024-10-01
SY598880 Favourable 19.19 2024-10-01

Geology & landscape

Geological Period: Quaternary · Rock Type: Chalk, Sandstone

Landscape processes: Periglacial

Description

Valley of Stones SSSI Description Valley of Stones SSSI is situated approximately one kilometre to the north of Portesham in southern Dorset and consists of dry valleys and slopes on Upper Chalk, with overlying deposits of pebbly clay and sand and Bagshot Beds in the eastern part of the site. The site is famous for its fine train of sarsen stones and also contains a diverse range of unimproved grassland types, uncommon lichens, mosses, liverworts and scarce butterflies. The southernmost dry chalk valley contains an excellent example of a sarsen blockstream or ‘valley train’. Sarsen stones have here been transported downslope during periglacial conditions by the process of solifluction. They have been aligned along the valley floor in what are known as ‘valley trains’. The sarsens in the upper valley are typically conglomeratic (flints in a sandy matrix) whilst those in the lower valley are largely sandstone in composition. This site has considerable research potential for studies of sarsens, slope processes and landscape evolution during the late Pleistocene when southern England was subjected to extreme periglacial conditions. The unimproved chalk grassland on the valley slopes is of high quality and contains a wide variety of herbs. Species which are frequent or abundant include salad burnet Poterium sanguisorba, small scabious Scabiosa columbaria, rough hawkbit Leontodon hispidus, devil’s-bit scabious Succisa pratensis, betony Betonica officinalis, hoary plantain Plantago media and wild thyme Thymus polytrichus. Less frequent species include clustered bellflower Campanula glomerata, autumn gentian Gentianella amarella and hairy rock-cress Arabis hirsuta. Horseshoe vetch Hippocrepis comosa is locally frequent. Grasses and sedges present in the calcareous sward include sheep’ s fescue Festuca ovina, meadow oat grass Avenula pratensis, quaking grass Briza media, crested hair-grass Koeleria macrantha, spring sedge Carex caryophyllea and glaucous sedge Carex flacca. A variety of mosses occur in the grassland including species characteristic of calcareous conditions such as comb moss Ctenidium molluscum and yellow feather moss Homalothecium lutescens. In the eastern part of the site the soils on the Bagshot Beds support vegetation more suited to acidic conditions. Species present here include bristle bent Agrostis curtisii, purple moor grass Molinia caerulea, bell heather Erica cinerea, heath bedstraw Galium saxatile and bracken Pteridium aquilinum. Gorse scrub is frequent, with both European gorse Ulex europaeus and western gorse Ulex gallii occurring. On more neutral soils frequent species include common bent Agrostis capillaris, sweet vernal-grass Anthoxanthum odoratum and devil’s-bit scabious, with plants such as salad burnet becoming more frequent towards the calcareous areas of the site. The sarsen stones support a rich flora of lichens, mosses and liverworts. Lichens present on the stones include the Nationally Rare Buellia saxorum and the Nationally Scarce Xanthoparmelia delisei with Anaptychia runcinata, Lecanora gangaleoides, Xanthoparmelia verruculifera and Ramalina siliquosa. The Nationally Scarce liverwort Porella obtusata also occurs on the sarsen stones and other mosses and liverworts include species which are uncommon in Dorset such as Pterogonium gracile, Hedwigia ciliata and Grimmia trichophylla. The unimproved chalk grassland supports a variety of butterflies. The Nationally Scarce Adonis blue Polyommatus bellargus breeds here on the site and two local species, chalk-hill blue Polyommatus coridon and dingy skipper Erynnis tages are present in breeding colonies.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
dingy skipper Erynnis tages LC butterfly hesperiidae
Adonis blue Polyommatus bellargus VU butterfly lycaenidae
chalkhill blue Polyommatus coridon VU butterfly lycaenidae
bracken Pteridium aquilinum LC fern dennstaedtiaceae
common bent Agrostis capillaris LC grass poaceae
bristle bent Agrostis curtisii LC grass poaceae
sweet vernal grass Anthoxanthum odoratum LC grass poaceae
meadow oat grass Avenula pratensis Not listed in GB list grass poaceae
quaking grass Briza media VU grass poaceae
sheep's fescue Festuca ovina LC grass poaceae
crested hair-grass Koeleria macrantha NT grass poaceae
purple moor grass Molinia caerulea LC grass poaceae
hairy rockcress Arabis hirsuta VU herb brassicaceae
betony Betonica officinalis VU herb lamiaceae
clustered bellflower Campanula glomerata VU herb campanulaceae
heath bedstraw Galium saxatile LC herb rubiaceae
autumn gentian Gentianella amarella LC herb gentianaceae
horseshoe vetch Hippocrepis comosa VU herb fabaceae
rough hawkbit Leontodon hispidus LC herb asteraceae
hoary plantain Plantago media LC herb plantaginaceae
salad burnet Poterium sanguisorba VU herb rosaceae
small scabious Scabiosa columbaria LC herb caprifoliaceae
devils-bit scabious Succisa pratensis VU herb caprifoliaceae
wild thyme Thymus polytrichus Not listed in GB list herb lamiaceae
no common name Anaptychia runcinata LC lichen no common name
no common name Buellia saxorum NT lichen no common name
no common name Lecanora gangaleoides LC lichen no common name
ivory rock lichen Ramalina siliquosa LC lichen no common name
no common name Xanthoparmelia delisei LC lichen no common name
no common name Xanthoparmelia verruculifera LC lichen no common name
broad scalewort Porella obtusata LC liverwort jungermanniales
comb moss Ctenidium molluscum LC moss hypnales
hair pointed grimmia Grimmia trichophylla LC moss grimmiales
hoar moss Hedwigia ciliata LC moss hedwigiales
yellow feather moss Homalothecium lutescens LC moss hypnales
bird's foot wing moss Pterogonium gracile Not listed in GB list moss hypnales
spring-sedge Carex caryophyllea NT sedge cyperaceae
glaucus sedge Carex flacca LC sedge cyperaceae
gorse Ulex europaeus LC shrub leguminosae
western gorse Ulex gallii LC shrub leguminosae
bell heather Erica cinerea NT shrub dwarf ericaceae

Plant communities

M22 — Coastal floodplain grazing marsh, Lowland fen, Purple moor grass and rush pasture

Juncus subnodulosus-Cirsium palustre fen-meadow

Salix cinerea, Solanum dulcamara, Carex acutiformis, Carex disticha, Carex elata, Carex flacca, Carex hirta, Carex lepidocarpa, Carex nigra, Carex panicea, Carex rostrata, Cladium mariscus, Eriophorum angustifolium, Eleocharis palustris, Eleocharis uniglumis, Juncus articulatus, Juncus effusus, Juncus inflexus, Juncus subnodulosus, Luzula multiflora, Plagiomnium affine, Plagiomnium rostratum, Plagiomnium undulatum, Rhizomnium punctatum, Brachythecium rutabulum, Calliergonell cuspidatum, Cratoneuron filicinum, Pseudoscleropodium purum, Lophocolea bidentata, Angelica sylvestris, Berula erecta, Oenanthe lachenalii, Thyselium palustre, Hydrocotyle vulgaris, Achillea ptarmica, Caltha palustris, Centaurea nigra, Cirsium arvense, Cirsium dissectum, Cirsium palustre, Eupatorium cannabinum, Pulicaria dysenterica, Myosotis laxa, Myosotis scorpioides, Cardamine pratensis, Succisa pratensis, Valeriana dioica, Valeriana officinalis, Cerastium fontanum, Silene flos-cuculi, Stellaria palustris, Calystegia sepium, Equisetum fluviatile, Equisetum palustre, Lathyrus pratensis, Lotus pedunculatus, Trifolium pratense, Trifolium repens, Vicia cracca, Hypericum tetrapterum, Iris pseudacorus, Triglochin palustre, Ajuga reptans, Lycopus europaeus, Mentha aquatica, Lemna minor, Lythrum salicaria, Menyanthes trifoliata, Epilobium hirsutum, Epilobium palustre, Epilobium parviflorum, Dactylorhiza fuchsii, Dactylorhiza incarnata, Dactylorhiza praetermissa, Epipactis palustris, Pedicularis palustris, Rhinanthus minor, Plantago lanceolata, Veronica beccabunga, Polygonum amphibium, Rumex acetosa, Rumex conglomeratus, Rumex sanguineus, Lysimachia vulgaris, Primula vulgaris, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Thalictrum flavum, Comarum palustre, Filipendula ulmaria, Potentilla anserina, Potentilla erecta, Potentilla reptans, Galium palustre, Galium uliginosum, Scrophularia auriculata, Scutellaria galericulata, Agrostis stolonifera, Anthoxanthum odoratum, Arrhenatherum elatius, Briza media, Calamagrostis canescens, Cynosurus cristatus, Deschampsia cespitosa, Festuca rubra, Holcus lanatus, Molinia caerulea, Phalaris arundinacea, Phleum pratense, Phragmites australis, Poa trivialis, Schedonorus arundinaceus, Ophioglossum vulgatum, Thelypteris palustris

M23 — Coastal floodplain grazing marsh, Purple moor grass and rush pasture, Upland rush pasture

Juncus effusus/acutiflorus-Galium palustre rush-pasture

Carex demissa, Carex echinata, Carex nigra, Carex panicea, Juncus acutiflorus, Juncus articulatus, Juncus bulbosus, Juncus conglomeratus, Juncus effusus, Luzula campestris, Luzula multiflora, Aulacomnium palustre, Brachythecium rivulare, Brachythecium rutabulum, Calliergon cordifolium, Calliergonell cuspidatum, Kindbergia praelonga, Rhytidiadelphus squarrosus, Polytrichum commune, Calypogeia fissa, Lophocolea bidentata, Pellia epiphylla, Angelica sylvestris, Carum verticillatum, Hydrocotyle vulgaris, Achillea ptarmica, Caltha palustris, Cirsium palustre, Senecio aquaticus, Taraxacum officianalis, Myosotis laxa, Myosotis secunda, Cardamine flexuosa, Cardamine pratensis, Succisa pratensis, Valeriana officinalis, Cerastium fontanum, Silene flos-cuculi, Stellaria alsine, Stellaria graminea, Equisetum fluviatile, Equisetum palustre, Lathyrus pratensis, Lotus pedunculatus, Trifolium repens, Iris pseudacorus, Mentha aquatica, Scutellaria minor, Lythrum salicaria, Narthecium ossifragum, Epilobium obscurum, Epilobium palustre, Dactylorhiza maculata, Plantago lanceolata, Veronica scutellata, Polygonum hydropiper, Rumex acetosa, Primula vulgaris, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Comarum palustre, Filipendula ulmaria, Potentilla anserina, Potentilla erecta, Galium palustre, Viola palustris, Agrostis canina, Agrostis capillaris, Agrostis stolonifera, Anthoxanthum odoratum, Cynosurus cristatus, Deschampsia cespitosa, Festuca rubra, Glyceria fluitans, Holcus lanatus, Molinia caerulea, Poa pratensis, Poa trivialis, Dryopteris expansa, Athyrium filix-femina

M24 — Coastal floodplain grazing marsh, Lowland fen, Purple moor grass and rush pasture

Molinia caerulea-Cirsium dissectum fen-meadow

Salix cinerea, Salix repens, Alnus glutinosa, Calluna vulgaris, Erica tetralix, Carex hostiana, Carex nigra, Carex panicea, Carex pulicaris, Cladium mariscus, Eriophorum angustifolium, Schoenus nigricans, Juncus acutiflorus, Juncus articulatus, Juncus conglomeratus, Juncus effusus, Juncus subnodulosus, Luzula multiflora, Aulacomnium palustre, Brachythecium rutabulum, Calliergonell cuspidatum, Hypnum cupressiforme, Kindbergia praelonga, Pseudoscleropodium purum, Thuidium tamariscinum, Sphagnum auriculatum, Sphagnum subnitens, Angelica sylvestris, Hydrocotyle vulgaris, Achillea ptarmica, Centaurea nigra, Cirsium arvense, Cirsium dissectum, Cirsium palustre, Eupatorium cannabinum, Leontodon saxatilis, Pulicaria dysenterica, Senecio aquaticus, Serratula tinctoria, Cardamine pratensis, Succisa pratensis, Valeriana dioica, Cerastium fontanum, Silene flos-cuculi, Drosera rotundifolia, Equisetum palustre, Lathyrus pratensis, Lotus pedunculatus, Trifolium pratense, Vicia cracca, Hypericum tetrapterum, Hypericum undulatum, Mentha aquatica, Scutellaria minor, Linum catharticum, Lythrum salicaria, Narthecium ossifragum, Dactylorhiza fuchsii, Dactylorhiza incarnata, Dactylorhiza maculata, Epipactis palustris, Gymnadenia conopsea, Pedicularis sylvatica, Plantago lanceolata, Polygala vulgaris, Rumex acetosa, Anagallis tenella, Primula vulgaris, Ranunculus acris, Ranunculus flammula, Filipendula ulmaria, Potentilla anserina, Potentilla erecta, Potentilla reptans, Rubus fruticosus agg., Galium palustre, Galium uliginosum, Galium verum, Viola palustris, Agrostis canina, Agrostis stolonifera, Anthoxanthum odoratum, Briza media, Danthonia decumbens, Deschampsia cespitosa, Festuca rubra, Holcus lanatus, Molinia caerulea, Phragmites australis

M25 — Blanket bog, Coastal floodplain grazing marsh, Lowland fen, Purple moor grass and rush pasture, Upland acid grassland

Molinia caerulea-Potentilla erecta mire

Salix cinerea, Calluna vulgaris, Erica tetralix, Myrica gale, Vaccinium oxycoccos, Ulex europaeus, Ulex gallii, Carex echinata, Carex flacca, Carex nigra, Carex panicea, Eriophorum angustifolium, Schoenus nigricans, Juncus acutiflorus, Juncus articulatus, Juncus effusus, Juncus subnodulosus, Luzula campestris, Luzula multiflora, Aulacomnium palustre, Pohlia nutans, Calliergon giganteum, Calliergonell cuspidatum, Hypnum jutlandicum, Kindbergia praelonga, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Polytrichum commune, Sphagnum auriculatum, Sphagnum capillifolium, Sphagnum fallax, Sphagnum palustre, Sphagnum papillosum, Sphagnum subnitens, Calypogeia fissa, Cephalozia bicuspidata, Lophocolea bidentata, Lophozia ventricosa, Angelica sylvestris, Carum verticillatum, Hydrocotyle vulgaris, Achillea ptarmica, Centaurea nigra, Cirsium palustre, Eupatorium cannabinum, Pulicaria dysenterica, Serratula tinctoria, Cardamine pratensis, Lobelia urens, Succisa pratensis, Valeriana officinalis, Equisetum palustre, Lotus pedunculatus, Hypericum pulchrum, Hypericum tetrapterum, Mentha aquatica, Scutellaria minor, Menyanthes trifoliata, Narthecium ossifragum, Epilobium palustre, Dactylorhiza maculata, Rumex acetosa, Ranunculus acris, Ranunculus flammula, Filipendula ulmaria, Potentilla erecta, Rubus fruticosus agg., Galium palustre, Viola palustris, Agrostis canina, Agrostis capillaris, Agrostis curtisii, Agrostis stolonifera, Anthoxanthum odoratum, Danthonia decumbens, Deschampsia cespitosa, Festuca ovina, Festuca rubra, Holcus lanatus, Molinia caerulea, Nardus stricta, Phragmites australis, Dryopteris carthusiana, Osmunda regalis

M26 — Limestone pavement, Purple moor grass and rush pasture

Molinia caerulea-Crepis paludosa mire

Carex appropinquata, Carex disticha, Carex echinata, Carex flacca, Carex hostiana, Carex nigra, Carex panicea, Carex pulicaris, Juncus acutiflorus, Juncus articulatus, Juncus conglomeratus, Aulacomnium palustre, Plagiomnium undulatum, Calliergonell cuspidatum, Campylium elodes, Climacium dendroides, Ctenidium molluscum, Hylocomium splendens, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Thuidium tamariscinum, Lophocolea bidentata, Plagiochila asplenioides, Angelica sylvestris, Caltha palustris, Centaurea nigra, Cirsium palustre, Crepis paludosa, Leontodon hispidus, Serratula tinctoria, Succisa pratensis, Valeriana dioica, Silene flos-cuculi, Equisetum fluviatile, Equisetum palustre, Lathyrus pratensis, Trifolium repens, Menyanthes trifoliata, Rhinanthus minor, Plantago lanceolata, Rumex acetosa, Primula farinosa, Primula vulgaris, Anemone nemorosa, Ranunculus acris, Ranunculus auricomus, Trollius europaeus, Comarum palustre, Filipendula ulmaria, Geum rivale, Potentilla erecta, Sanguisorba officinalis, Galium palustre, Galium uliginosum, Agrostis stolonifera, Anthoxanthum odoratum, Briza media, Deschampsia cespitosa, Festuca ovina, Festuca rubra, Holcus lanatus, Molinia caerulea, Phragmites australis

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

W25 — Bracken scrub

Pteridium aquilinum-Rubus fruticosus underscrub

Hedera helix, Acer pseudoplatanus, Fagus sylvatica, Quercus robur, Fraxinus excelsior, Sambucus nigra, Ulex europaeus, Crataegus monogyna, Prunus spinosa, Luzula multiflora, Mnium hornum, Brachythecium rutabulum, Kindbergia praelonga, Angelica sylvestris, Conopodium majus, Heracleum sphondylium, Arum maculatum, Cirsium arvense, Lonicera periclymenum, Silene dioica, Stellaria holostea, Mercurialis perennis, Geranium robertianum, Glechoma hederacea, Teucrium scorodonia, Hyacinthoides non-scripta, Chamerion angustifolium, Circaea lutetiana, Digitalis purpurea, Rumex acetosa, Anemone nemorosa, Ficaria verna, Potentilla erecta, Rosa arvensis, Rosa canina, Rubus fruticosus agg., Rubus idaeus, Galium aparine, Galium mollugo sens.lat., Galium saxatile, Urtica dioica, Viola riviniana, Agrostis capillaris, Anthoxanthum odoratum, Arrhenatherum elatius, Dactylis glomerata, Festuca rubra, Holcus lanatus, Holcus mollis, Poa trivialis, Pteridium aquilinum, Dryopteris dilatata, Dryopteris filix-mas