White Rocks

Site of Special Scientific Interest · 55.2072, -6.5980

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Antrim County Causeway Coast Scenic Area

Climate exposure

This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.

Coastal

Coastal habitats are exposed to sea-level rise and storm erosion. Where hard sea defences sit behind them, there's nowhere landward to retreat to — a squeeze that keeps compressing the habitat no matter how well it's managed.

Habitats

Bracken scrub, Sand dune

Geology & landscape

Geological Feature: Cave / Cavern, Rock Outcrop · Mining / Industrial: Quarry · Geological Period: Cretaceous · Rock Type: Basalt, Chalk, Flint, Limestone

Landscape processes: Coastal, Karst, Volcanic / Igneous

Birds & fish recorded

Birds

SpeciesSeason
guillemot Breeding
peregrine Breeding

Description

White Rocks Cretaceous stratigraphy, Tertiary igneous, Coastal processes The coastal section of the White Rocks exhibits a range of notable geological and geomorphological features. These include, from oldest to youngest, the Cretaceous chalk series. the Tertiary vent features and the coastal landforms. The cliffs also support a range of plant communities and provide suitable habitat for a range of breeding birds. The cliffs at White Rocks and the nearby quarry at Ballymagarry contain excellent exposures of the Ulster White Limestone Formation dating from the Cretaceous period and are some 85 million years old. Included are the type sections for the Portrush Chalk, Ballymagarry Chalk and Tanderagee Chalk Members. Type sections are localities recognised as containing the best example of a particular rock series. The Ulster White Limestone or chalk exposed here formed in an ancient warm sea and is composed of the skeletal remains of microscopic marine organIsms. The White Rocks also show clear evidence of explosive activity which was associated with the onset of Tertiary igneous events in Antrim some 60 million years ago. This activity was probably phreatomagmatic due to magma moving upwards into water-saturated sediments at shallow depths. The initial phase oferuption in Antrim featured explosive activity, primarily seen in a series of vents exposed in north Antrim, and including the much larger occurrence at Carrickarede. These small scale vents are concentrated in a relatively narrow zone between the White Rocks and Dunluce Castle. The source of the gas to provide the explosive force was a magma body moving to the surface from depth. The volume of gas was increased by steam produced as a result of the hot magma vaporising the water contained in the sediments through which it passed. It is significant that these vents are near the centre of the large, roughly circular outcrop, of the Portrush Sill which forms Ramore Head at Portrush and the islands of the Skerries. The vents contain agglomerates comprising shattered chalk with flint and basalt while the walls are often well defined, showing agglomerate in contact with undisturbed chalk. While there is an undoubted volcanic origin for many of these features, there is a possibility that elsewhere within the site some similar features are the result of the collapse of basaltic material into solution hollows on the chalk surface. The White Rocks also demonstrate coastal landforms typical of chalk coasts, with cliffs, shore platforms, caves, arches, and sea stacks all present. For 2 km. east of the Curran Strand. the shore is formed of near vertical chalk cliffs fronted by a platfonn with occasional inlets and small embayments. The cliffs extend to Dunluce Castle where a fault re-introduces the basalt shoreline. The Irish Cretaceous chalk is extremely hard and highly resistant to erosion. The shoreline comprises a rampart of chalk cliffs and associated features, including caves at various stages of development, blowholes, shore platforms and cliff benches, stacks, and sea arches. The cliff itself has a characteristic profile known as slope-over-wall cliffs, distinctly different from those developed in basalt. The cliff-base platform is not continuous, being dissected by a series of joints which match the orientations of numerous caves in the chalk headlands. In addition, areas of chalk affected by Tertiary vent activity have also been weakened. It is these lines of weakness that the sea has exploited to produce the coastal scenery in this area. All stages of this erosion process can be seen, with features ranging from small wave gullies and incipient caves developing along well defined joints, to large caves, arches and sea stacks which have formed by progressive enlargement of the smaller caves. The chalk landforms are best developed in two locations at either end of the site. At the western end, near Slidderycove Point, there are a number of deep caves and an impressive arch. At this location a number of sea stacks also emerge from the sand as semi-fossil features. At the eastern end of the site stands the spectacular Gulls Point arch with basalt cap rock on the cliffs to the landward side. Associated with this arch are a number ofcaves, smaller incipient arches and sea stacks. The great depression of The Riggin appears to be a collapse structure, a former chalk cavern or system of caves that has suffered roof collapse. Waves now enter The Riggin through several openings in the narrow chalk ridge which separates it from the sea. The site contains a range of plant communities typical of coastal cliffs. The cliff top is generally dominated by grasses, notably red fescue Festuca rubra but also Yorkshire fog Holcus lana1us, cock's-foot Dactylis glomerata, false oat grass Arrhenatherum elatius and common bent Agrostis capillaris and occasional, low growing gorse Ulex europaeus. Associated species are rather limited where the grass sward is rank and include tormentil Potentilla erecta, ribwort plantain Plantago lanceolata, bush vetch Vicia sepium, meadow vetchling Lathyrus pratensis, and red clover Trifolium pratense. Areas where the grass cover is reduced support a more diverse range of species with thrift Armeria maritima, birdsfoot trefoil Lotus corniculatus and sea campion Silene uniflora typically present. Creeping cinquefoil Potentilla reptans is locally frequent in very open situations. Vegetation type on the cliff face appears to relate more to slope stability and soil depth rather than rock type. Where the soils are deeper, the vegetation is dominated by red fescue Fes1uca rubra with frequent hogweed Heracleum sphondylium, thrift Armeria maritima, sea mayweed Tripleurospermum maritimum and sea campion Silene uniflora. Where the soils are much thinner, the rock ledges are dominated by wild thyme Thymus polytrichus with occasional lady's bedstraw Galium verum. On the lower rocks, buck's-horn plantain Plantago coronopus and sea campion Silene uniflora occur in small pockets along narrow ledges. The unstable nature of the cliff faces is indicated by the frequent presence of ragwort Senecio jacobaea, colts foot Tussilago farfara and common nettle Urtica dioica. The western end of the site is dominated by rank dune vegetation consisting of small pockets of marram Ammophila arenaria grassland between dense bracken Pteridium aquilinum. Red campion Silene dioica also occurs locally in the sward. The site regularly supports breeding peregrine falcon Falco peregrinus while caves and rock fissures provide nesting locations for a notable population of black guillemot Cepphus grylle. https://www.daera-ni.gov.uk/publications/white-rocks-assi

Species mentioned

English name
search for this in other sites		 Latin name
search with Google		 IUCN / Red List Type Family
black guillemot Cepphus grylle NT (Breeding) bird-auk alcidae
guillemot Uria aalge LC (Breeding) bird-auk alcidae
peregrine Falco peregrinus LC (Breeding) bird-hawk falconidae
bracken Pteridium aquilinum LC fern dennstaedtiaceae
common bent Agrostis capillaris LC grass poaceae
marram grass Ammophila arenaria LC grass poaceae
false oat grass Arrhenatherum elatius LC grass poaceae
cock's foot Dactylis glomerata LC grass poaceae
red fescue Festuca rubra LC grass poaceae
thrift Armeria maritima CR herb plumbaginaceae
lady's bedstraw Galium verum LC herb rubiaceae
hogweed Heracleum sphondylium CR(PE) herb apiaceae
meadow vetchling Lathyrus pratensis LC herb fabaceae
birdsfoot trefoil Lotus corniculatus LC herb fabaceae
buck's-horn plantain Plantago coronopus LC herb plantaginaceae
ribwort plantain Plantago lanceolata LC herb plantaginaceae
tormentil Potentilla erecta LC herb rosaceae
creeping cinquefoil Potentilla reptans LC herb rosaceae
red campion Silene dioica LC herb carophyllaceae
sea campion Silene uniflora LC herb carophyllaceae
wild thyme Thymus polytrichus Not listed in GB list herb lamiaceae
red clover Trifolium pratense LC herb fabaceae
sea mayweed Tripleurospermum maritimum LC herb asteraceae
colts-foot Tussilago farfara LC herb asteraceae
nettle Urtica dioica LC herb urticaceae
bush vetch Vicia sepium LC herb fabaceae
gorse Ulex europaeus LC shrub leguminosae

Plant communities

SD1 — Coastal vegetated shingle, Sand dune

Rumex crispus-Glaucium flavum shingle community

Solanum dulcamara, Crithmum maritimum, Cirsium arvense, Cirsium vulgare, Helminthotheca echioides, Hypochaeris radicata, Jacobaea vulgaris, Lactuca serriola, Leontodon saxatilis, Senecio viscosus, Sonchus arvensis, Sonchus asper, Tripleurospermum maritimum, Crambe maritima, Cerastium fontanum, Honckenya peploides, Sagina apetala, Silene uniflora, Atriplex prostrata, Sedum acre, Euphorbia paralias, Lathyrus japonicus, Geranium robertianum, Glaucium flavum, Plantago coronopus, Plantago lanceolata, Rumex crispus, Potentilla anserina, Ammophila arenaria, Arrhenatherum elatius, Elytrigia atherica, Elytrigia juncea, Festuca rubra, Holcus lanatus, Lolium perenne

SD2 — Coastal vegetated shingle, Sand dune

Honkenya peploides-Cakile maritima strandline community

Salsola kali, Achillea millefolium, Cirsium arvense, Eryngium maritimum, Hypochaeris radicata, Senecio vulgaris, Sonchus arvensis, Tripleurospermum maritimum, Cakile maritima, Cerastium diffusum, Honckenya peploides, Silene uniflora, Stellaria media agg., Atriplex glabriuscula, Atriplex laciniata, Atriplex littoralis, Atriplex patula, Atriplex prostrata, Sedum acre, Polygonum oxyspermum subsp. Raii, Rumex crispus, Potentilla anserina, Agrostis stolonifera, Ammophila arenaria, Arrhenatherum elatius, Elytrigia juncea, Elytrigia repens, Festuca rubra, Leymus arenarius, Poa annua

SD3 — Coastal vegetated shingle, Sand dune

Matricaria maritima-Galium aparine strandline community

Bolboschoenus maritimus, Juncus bufonius, Juncus gerardii, Ligusticum scoticum, Matricaria discoidea, Sonchus arvensis, Sonchus asper, Tripleurospermum maritimum, Mertensia maritima, Cakile maritima, Cochlearia officinalis, Honckenya peploides, Stellaria media agg., Atriplex glabriuscula, Atriplex patula, Atriplex prostrata, Triglochin maritimum, Plantago maritima, Armeria maritima, Rumex crispus, Glaux maritima, Galium aparine, Agrostis stolonifera, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Poa annua

SD4 — Sand dune

Elymus farctus ssp. boreali-atlanticus foredune community

Salsola kali, Artemisia maritima, Cirsium arvense, Cirsium vulgare, Eryngium maritimum, Hypochaeris radicata, Jacobaea vulgaris, Matricaria chamomilla, Senecio squalidus, Senecio vulgaris, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Tripleurospermum maritimum, Cakile maritima, Cerastium diffusum, Honckenya peploides, Atriplex glabriuscula, Atriplex laciniata, Atriplex prostrata, Euphorbia paralias, Polygonum oxyspermum subsp. Raii, Rumex crispus, Agrostis stolonifera, Ammophila arenaria, Elytrigia atherica, Elytrigia juncea, Festuca rubra, Leymus arenarius

SD5 — Sand dune

Leymus arenarius mobile dune community

Bryum algovicum, Ceratodon purpureus, Brachythecium rutabulum, Syntrichia ruraliformis, Cirsium arvense, Hypochaeris radicata, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Cakile maritima, Cerastium fontanum, Honckenya peploides, Atriplex glabriuscula, Atriplex prostrata, Chamerion angustifolium, Rumex crispus, Galium aparine, Ammophila arenaria, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Poa pratensis

SD6 — Sand dune

Ammophila arenaria mobile dune community

Lupinus arboreus, Carex arenaria, Ceratodon purpureus, Brachythecium albicans, Syntrichia ruraliformis, Angelica sylvestris, Heracleum sphondylium, Cirsium arvense, Cirsium vulgare, Eryngium maritimum, Hypochaeris radicata, Jacobaea vulgaris, Senecio squalidus, Senecio vulgaris, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Tussilago farfara, Cynoglossum officinale, Cakile maritima, Honckenya peploides, Atriplex glabriuscula, Atriplex laciniata, Calystegia soldanellla, Euphorbia paralias, Euphorbia portlandica, Trifolium arvense, Trifolium repens, Eriodium cicutarium, Chamerion angustifolium, Linaria vulgaris, Rumex crispus, Ranunculus repens, Rubus fruticosus agg., Galium verum, Urtica dioica, Agrostis capillaris, Agrostis stolonifera, Ammophila arenaria, Catapodium marinum, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Poa annua, Poa pratensis

SD7 — Sand dune

Ammophila arenaria-Festuca rubra semi-fixed dune community

Carex arenaria, Luzula campestris, Bryum argenteum, Bryum capillare, Ceratodon purpureus, Dicranum scoparium, Brachythecium albicans, Brachythecium rutabulum, Homalothecium lutescens, Hypnum cupressiforme, Kindbergia praelonga, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Syntrichia ruraliformis, Tortella flavovirens, Lophocolea bidentata, Cladonia fimbriata, Cladonia furcata, Cladonia impexa, Cladonia pyxidata, Cladonia rangiformis, Peltigera canina, Peltigera rufescens, Heracleum sphondylium, Achillea millefolium, Centaurea nigra, Cirsium arvense, Cirsium vulgare, Crepis capillaris, Eryngium maritimum, Hypochaeris radicata, Jacobaea vulgaris, Leontodon hispidus, Leontodon saxatilis, Pilosella officinarum, Scorzoneroides autumnalis, Senecio vulgaris, Sonchus arvensis, Sonchus asper, Taraxacum officianalis, Tragopogon pratensis, Tussilago farfara, Myosotis ramosissima, Erophila verna, Campanula rotundifolia, Valerianella locusta, Arenaria serpyllifolia, Cerastium diffusum, Cerastium fontanum, Cerastium semidecandrum, Calystegia soldanellla, Sedum acre, Euphorbia paralias, Euphorbia portlandica, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Trifolium arvense, Trifolium campestre, Trifolium repens, Vicia lathyroides, Vicia sativa, Centaurium erythraea, Eriodium cicutarium, Thymus praecox, Linum catharticum, Chamerion angustifolium, Rhinanthus minor, Plantago coronopus, Plantago lanceolata, Veronica arvensis, Veronica chamaedrys, Rumex crispus, Ranunculus bulbosus, Ranunculus repens, Acaena novae-zelandiae, Rubus caesius, Rubus fruticosus agg., Galium verum, Viola canina, Viola riviniana, Viola tricolor, Agrostis capillaris, Aira praecox, Ammophila arenaria, Arrhenatherum elatius, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Leymus arenarius, Phleum arenarium, Poa pratensis

SD8 — Machair sand dune, Sand dune

Festuca rubra-Galium verum fixed dune grassland

Salix repens, Rosa spinosissima, Carex arenaria, Carex caryophyllea, Carex flacca, Luzula campestris, Plagiomnium rostratum, Plagiomnium undulatum, Ditrichum flexicaule, Brachythecium albicans, Calliergonell cuspidatum, Climacium dendroides, Entodon concinnus, Homalothecium lutescens, Hylocomium splendens, Hypnum cupressiforme, Kindbergia praelonga, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Thuidium delicatulum, Thuidium tamariscinum, Syntrichia ruraliformis, Lophocolea bidentata, Cladonia rangiformis, Odontites verna, Peltigera canina, Peltigera rufescens, Angelica sylvestris, Daucus carota, Heracleum sphondylium, Achillea millefolium, Bellis perennis, Centaurea nigra, Cirsium arvense, Cirsium vulgare, Crepis capillaris, Hypochaeris radicata, Jacobaea vulgaris, Leucanthemum vulgare, Pilosella officinarum, Scorzoneroides autumnalis, Sonchus oleraceus, Taraxacum officianalis, Myosotis arvensis, Myosotis ramosissima, Campanula rotundifolia, Succisa pratensis, Cerastium arvense, Cerastium diffusum, Cerastium fontanum, Cerastium semidecandrum, Sedum acre, Equisetum arvense, Anthyllis vulneraria, Astragalus danicus, Lotus corniculatus, Medicago lupulina, Ononis repens, Trifolium campestre, Trifolium pratense, Trifolium repens, Vicia cracca, Vicia lathyroides, Gentianella amarella, Eriodium cicutarium, Thymus praecox, Linum catharticum, Dactylorhiza viridis, Neottia ovata, Euphrasia officinalis, Rhinanthus minor, Plantago coronopus, Plantago lanceolata, Plantago major, Plantago maritima, Veronica arvensis, Veronica chamaedrys, Polygala vulgaris, Rumex acetosa, Rumex acetosella, Primula veris, Primula vulgaris, Ranunculus acris, Ranunculus bulbosus, Ranunculus repens, Thalictrum minus, Potentilla anserina, Galium verum, Viola riviniana, Viola tricolor, Agrostis capillaris, Agrostis stolonifera, Aira praecox, Ammophila arenaria, Anthoxanthum odoratum, Arrhenatherum elatius, Avenula pubescens, Cynosurus cristatus, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Leymus arenarius, Lolium perenne, Poa pratensis, Poa trivialis, Trisetum flavescens

SD9 — Sand dune

Ammophila arenaria-Arrhenatherum elatius dune grassland

Rosa spinosissima, Carex arenaria, Carex flacca, Luzula campestris, Brachythecium rutabulum, Hypnum cupressiforme, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Syntrichia ruraliformis, Heracleum sphondylium, Pimpinella saxifraga, Torilis japonica, Achillea millefolium, Bellis perennis, Centaurea nigra, Cirsium arvense, Crepis capillaris, Hypochaeris radicata, Jacobaea vulgaris, Leontodon hispidus, Pilosella officinarum, Taraxacum officianalis, Myosotis arvensis, Campanula rotundifolia, Cerastium fontanum, Silene latifolia, Equisetum arvense, Astragalus danicus, Lathyrus pratensis, Lotus corniculatus, Ononis repens, Trifolium repens, Vicia sativa, Geranium sanguineum, Thymus praecox, Plantago lanceolata, Veronica chamaedrys, Rumex acetosa, Primula veris, Ranunculus bulbosus, Thalictrum minus, Fragaria vesca, Potentilla reptans, Poterium sanguisorba, Cruciata laevipes, Galium verum, Viola riviniana, Agrostis capillaris, Ammophila arenaria, Anthoxanthum odoratum, Arrhenatherum elatius, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Koeleria macrantha, Leymus arenarius, Poa pratensis, Trisetum flavescens, Pteridium aquilinum

SD10 — Sand dune

Carex arenaria dune community

Carex arenaria, Ceratodon purpureus, Hypnum cupressiforme, Achillea millefolium, Jacobaea vulgaris, Senecio vulgaris, Taraxacum officianalis, Tripleurospermum maritimum, Cerastium fontanum, Honckenya peploides, Astragalus danicus, Chamerion angustifolium, Plantago lanceolata, Rumex acetosella, Potentilla anserina, Galium verum, Agrostis capillaris, Aira praecox, Ammophila arenaria, Dactylis glomerata, Elytrigia juncea, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha

SD11 — Sand dune

Carex arenaria-Cornicularia aculeata dune community

Calluna vulgaris, Carex arenaria, Luzula campestris, Ceratodon purpureus, Dicranum scoparium, Racomitrium canescens sens.lat., Brachythecium albicans, Hypnum cupressiforme, Rhytidium rugosum, Polytrichum juniperinum, Polytrichum piliferum, Syntrichia ruraliformis, Ptilidium ciliare, Hypogymnia physodes, Cladonia arbuscula, Cladonia coccifera, Cladonia fimbriata, Cladonia foliacea, Cladonia furcata, Cladonia gracilis, Cladonia impexa, Cladonia pyxidata, Cladonia rangiferina, Cladonia rangiformis, Cladonia squamosa, Cladonia tenuis, Cladonia uncialis, Cornicularia aculeata, Hypochaeris radicata, Jacobaea vulgaris, Logfia minima, Teesdalia nudicaulis, Campanula rotundifolia, Sedum acre, Astragalus danicus, Eriodium cicutarium, Thymus praecox, Plantago lanceolata, Rumex acetosella, Galium saxatile, Galium verum, Viola canina, Viola tricolor, Agrostis capillaris, Aira praecox, Ammophila arenaria, Anthoxanthum odoratum, Corynephorus canescens, Festuca ovina, Festuca rubra, Phleum arenarium

SD12 — Sand dune

Carex arenaria-Festuca ovina-Agrostis capillaris dune grassland

Calluna vulgaris, Erica cinerea, Carex arenaria, Carex pilulifera, Luzula campestris, Ceratodon purpureus, Dicranum scoparium, Brachythecium albicans, Hylocomium splendens, Hypnum cupressiforme, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Rhytidiadelphus triquetrus, Polytrichum juniperinum, Cladonia arbuscula, Cladonia furcata, Peltigera canina, Achillea millefolium, Cirsium arvense, Hypochaeris radicata, Jacobaea vulgaris, Pilosella officinarum, Campanula rotundifolia, Cerastium diffusum, Cerastium fontanum, Astragalus danicus, Lathyrus pratensis, Lotus corniculatus, Ononis repens, Trifolium repens, Vicia lathyroides, Geranium molle, Thymus praecox, Plantago lanceolata, Veronica officinalis, Rumex acetosa, Rumex acetosella, Primula vulgaris, Ranunculus repens, Potentilla erecta, Galium saxatile, Galium verum, Urtica dioica, Viola riviniana, Agrostis capillaris, Ammophila arenaria, Anthoxanthum odoratum, Danthonia decumbens, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Poa pratensis

SD13 — Dune slack, Sand dune

Sagina nodosa-Bryum pseudotriquetrum dune-slack community

Salix repens, Hippophae rhamnoides, Carex arenaria, Carex flacca, Carex serotina, Juncus articulatus, Bryum pseudotriquetrum, Amblystegium serpens, Didymodon tophaceus, Moerckia hibernica, Aneura pinguis, Pellia endiviifolia, Petalophyllum ralfsii, Hydrocotyle vulgaris, Jacobaea vulgaris, Leontodon hispidus, Pilosella officinarum, Pulicaria dysenterica, Scorzoneroides autumnalis, Sonchus arvensis, Taraxacum officianalis, Arenaria serpyllifolia, Cerastium fontanum, Sagina nodosa, Equisetum palustre, Equisetum variegatum, Pyrola rotundifolia, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Blackstonia perfoliata, Centaurium erythraea, Mentha aquatica, Epilobium palustre, Dactylorhiza incarnata, Epipactis palustris, Euphrasia officinalis, Polygala vulgaris, Primula vulgaris, Samolus valerandi, Rubus caesius, Galium verum, Agrostis stolonifera, Ammophila arenaria, Festuca rubra, Holcus lanatus, Phragmites australis, Poa annua, Poa pratensis

SD14 — Dune slack, Sand dune

Salix repens-Campylium stellatum dune-slack community

Salix caprea, Salix repens, Hippophae rhamnoides, Carex arenaria, Carex caryophyllea, Carex demissa, Carex flacca, Carex hirta, Carex hostiana, Carex nigra, Carex panicea, Carex serotina, Cladium mariscus, Eleocharis palustris, Eleocharis quinqueflora, Juncus acutus, Juncus articulatus, Juncus gerardii, Juncus inflexus, Juncus maritimus, Bryum pseudotriquetrum, Brachythecium rutabulum, Calliergonell cuspidatum, Drepanocladus aduncus, Drepanocladus sendtneri, Kindbergia praelonga, Pseudocalliergon lycopodioides, Pseudoscleropodium purum, Leiocolea badensis, Lophocolea bidentata, Moerckia hibernica, Preissia quadrata, Aneura pinguis, Pellia endiviifolia, Riccardia chamedryfolia, Angelica sylvestris, Oenanthe lachenalii, Hydrocotyle vulgaris, Bellis perennis, Eupatorium cannabinum, Jacobaea erucifolia, Jacobaea vulgaris, Leontodon hispidus, Leontodon saxatilis, Pulicaria dysenterica, Scorzoneroides autumnalis, Sonchus arvensis, Taraxacum officianalis, Succisa pratensis, Sagina nodosa, Parnassia palustris, Equisetum arvense, Equisetum fluviatile, Equisetum palustre, Equisetum variegatum, Pyrola rotundifolia, Anthyllis vulneraria, Lotus corniculatus, Lotus pedunculatus, Trifolium fragiferum, Trifolium pratense, Trifolium repens, Blackstonia perfoliata, Centaurium pulchellum, Gentianella amarella, Lycopus europaeus, Mentha aquatica, Linum catharticum, Epilobium parviflorum, Dactylorhiza incarnata, Dactylorhiza praetermissa, Dactylorhiza purpurella, Epipactis palustris, Gymnadenia conopsea, Liparis loeselii, Euphrasia officinalis, Rhinanthus minor, Plantago coronopus, Plantago lanceolata, Plantago major, Polygala vulgaris, Anagallis tenella, Glaux maritima, Primula vulgaris, Samolus valerandi, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Fragaria vesca, Potentilla anserina, Rubus caesius, Galium palustre, Viola riviniana, Agrostis stolonifera, Anthoxanthum odoratum, Briza media, Danthonia decumbens, Festuca rubra, Holcus lanatus, Phragmites australis, Poa pratensis, Ophioglossum vulgatum

SD15 — Dune slack, Sand dune

Salix repens-Calliergon cuspidatum dune-slack community

Salix caprea, Salix repens, Solanum dulcamara, Bolboschoenus maritimus, Carex arenaria, Carex flacca, Carex hirta, Carex nigra, Carex panicea, Cladium mariscus, Eriophorum angustifolium, Eleocharis palustris, Juncus acutus, Juncus articulatus, Juncus inflexus, Juncus maritimus, Juncus subnodulosus, Brachythecium mildeanum, Calliergonell cuspidatum, Drepanocladus sendtneri, Homalothecium lutescens, Kindbergia praelonga, Pseudocalliergon lycopodioides, Pseudoscleropodium purum, Lophocolea bidentata, Angelica sylvestris, Oenanthe lachenalii, Hydrocotyle vulgaris, Caltha palustris, Centaurea nigra, Cirsium arvense, Cirsium palustre, Eupatorium cannabinum, Jacobaea vulgaris, Pulicaria dysenterica, Scorzoneroides autumnalis, Cardamine pratensis, Succisa pratensis, Silene flos-cuculi, Parnassia palustris, Equisetum arvense, Equisetum fluviatile, Equisetum palustre, Equisetum variegatum, Lathyrus pratensis, Lotus corniculatus, Lotus pedunculatus, Trifolium pratense, Trifolium repens, Vicia cracca, Vicia sativa, Iris pseudacorus, Glechoma hederacea, Lycopus europaeus, Mentha aquatica, Linum catharticum, Lythrum salicaria, Epilobium palustre, Epilobium parviflorum, Dactylorhiza incarnata, Dactylorhiza praetermissa, Epipactis palustris, Plantago lanceolata, Anagallis tenella, Glaux maritima, Lysimachia vulgaris, Primula vulgaris, Samolus valerandi, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Agrimonia eupatoria, Filipendula ulmaria, Potentilla anserina, Potentilla reptans, Rubus caesius, Galium palustre, Scutellaria galericulata, Agrostis canina, Agrostis capillaris, Agrostis stolonifera, Arrhenatherum elatius, Danthonia decumbens, Festuca rubra, Holcus lanatus, Molinia caerulea, Phragmites australis, Poa pratensis, Ophioglossum vulgatum

SD16 — Dune slack, Sand dune

Salix repens-Holcus lanatus dune-slack community

Salix caprea, Salix repens, Betula pubescens, Quercus robur, Carex arenaria, Carex flacca, Carex nigra, Carex serotina, Eleocharis quinqueflora, Juncus acutus, Juncus articulatus, Juncus inflexus, Juncus maritimus, Luzula campestris, Bryum pseudotriquetrum, Amblystegium serpens, Brachythecium albicans, Brachythecium rutabulum, Calliergonell cuspidatum, Hypnum cupressiforme, Kindbergia praelonga, Pseudoscleropodium purum, Syntrichia ruraliformis, Lophocolea bidentata, Moerckia hibernica, Pellia endiviifolia, Petalophyllum ralfsii, Riccardia chamedryfolia, Hydrocotyle vulgaris, Bellis perennis, Carlina vulgaris, Cirsium arvense, Crepis capillaris, Erigeron acris, Eupatorium cannabinum, Hypochaeris radicata, Jacobaea vulgaris, Leontodon hispidus, Leontodon saxatilis, Pilosella officinarum, Pulicaria dysenterica, Scorzoneroides autumnalis, Sonchus arvensis, Taraxacum officianalis, Cerastium fontanum, Sagina nodosa, Parnassia palustris, Equisetum arvense, Equisetum palustre, Equisetum variegatum, Pyrola rotundifolia, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Trifolium dubium, Trifolium pratense, Trifolium repens, Gentianella amarella, Mentha aquatica, Thymus praecox, Linum catharticum, Epilobium palustre, Dactylorhiza incarnata, Epipactis helleborine, Epipactis palustris, Euphrasia officinalis, Rhinanthus minor, Plantago lanceolata, Anagallis tenella, Primula vulgaris, Samolus valerandi, Ranunculus acris, Ranunculus flammula, Ranunculus repens, Fragaria vesca, Potentilla anserina, Rubus caesius, Galium verum, Viola riviniana, Agrostis capillaris, Agrostis stolonifera, Ammophila arenaria, Cynosurus cristatus, Festuca rubra, Holcus lanatus, Phragmites australis, Poa annua, Poa pratensis

SD17 — Dune slack, Sand dune

Potentilla anserina-Carex nigra dune-slack community

Salix caprea, Salix repens, Carex arenaria, Carex disticha, Carex flacca, Carex nigra, Carex panicea, Eriophorum angustifolium, Eleocharis palustris, Juncus acutiflorus, Juncus articulatus, Juncus bufonius, Juncus effusus, Juncus inflexus, Plagiomnium rostratum, Brachythecium rutabulum, Calliergonell cuspidatum, Cratoneuron filicinum, Drepanocladus aduncus, Drepanocladus sendtneri, Homalothecium lutescens, Kindbergia praelonga, Rhytidiadelphus squarrosus, Lophocolea bidentata, Odontites verna, Angelica sylvestris, Hydrocotyle vulgaris, Bellis perennis, Caltha palustris, Centaurea nigra, Scorzoneroides autumnalis, Taraxacum officianalis, Myosotis laxa, Cardamine pratensis, Cerastium fontanum, Sagina procumbens, Silene flos-cuculi, Parnassia palustris, Equisetum arvense, Equisetum fluviatile, Equisetum palustre, Equisetum variegatum, Lathyrus pratensis, Lotus corniculatus, Trifolium repens, Vicia cracca, Iris pseudacorus, Triglochin maritimum, Mentha aquatica, Linum catharticum, Epilobium palustre, Dactylorhiza fuchsii, Dactylorhiza incarnata, Dactylorhiza purpurella, Epipactis palustris, Euphrasia officinalis, Pedicularis palustris, Rhinanthus minor, Plantago lanceolata, Plantago maritima, Persicaria maculosa, Rumex acetosa, Rumex crispus, Glaux maritima, Primula vulgaris, Ranunculus flammula, Ranunculus repens, Comarum palustre, Filipendula ulmaria, Potentilla anserina, Rubus caesius, Galium palustre, Galium verum, Agrostis capillaris, Agrostis stolonifera, Alopecurus geniculatus, Anthoxanthum odoratum, Cynosurus cristatus, Elytrigia repens, Festuca rubra, Holcus lanatus, Lolium perenne, Poa annua, Poa pratensis, Poa trivialis

SD18 — Sand dune

Hippophae rhamnoides dune scrub

Salix repens, Sambucus nigra, Hippophae rhamnoides, Crataegus monogyna, Solanum dulcamara, Carex arenaria, Ceratodon purpureus, Brachythecium albicans, Brachythecium rutabulum, Kindbergia praelonga, Cladonia fimbriata, Cladonia furcata, Daucus carota, Heracleum sphondylium, Achillea millefolium, Cirsium arvense, Cirsium vulgare, Hypochaeris radicata, Jacobaea vulgaris, Leontodon saxatilis, Sonchus arvensis, Taraxacum officianalis, Cynoglossum officinale, Diplotaxis tenuifolia, Cerastium diffusum, Cerastium semidecandrum, Honckenya peploides, Sagina procumbens, Stellaria media agg., Calystegia soldanellla, Convolvulus arvensis, Lotus corniculatus, Ononis repens, Glechoma hederacea, Montia perfoliata, Chamerion angustifolium, Anacamptis pyramidalis, Plantago lanceolata, Rubus caesius, Rubus fruticosus agg., Galium aparine, Galium verum, Urtica dioica, Agrostis stolonifera, Aira praecox, Ammophila arenaria, Arrhenatherum elatius, Dactylis glomerata, Elytrigia atherica, Elytrigia juncea, Festuca rubra, Holcus lanatus, Leymus arenarius, Phleum arenarium, Phragmites australis, Poa pratensis, Poa trivialis

SD19 — Sand dune

Phleum arenarium-Arenaria serpyllifolia dune annual community

Carex arenaria, Luzula campestris, Brachythecium albicans, Homalothecium lutescens, Hypnum cupressiforme, Syntrichia ruraliformis, Tortella flavovirens, Tortella tortuosa, Peltigera canina, Cirsium arvense, Crepis capillaris, Hypochaeris glabra, Jacobaea vulgaris, Logfia minima, Erophila verna, Arenaria serpyllifolia, Cerastium diffusum, Cerastium semidecandrum, Sedum acre, Euphorbia paralias, Anthyllis vulneraria, Lotus corniculatus, Ononis repens, Trifolium arvense, Trifolium campestre, Trifolium dubium, Trifolium repens, Centaurium erythraea, Eriodium cicutarium, Geranium molle, Thymus praecox, Plantago coronopus, Plantago lanceolata, Galium verum, Viola tricolor, Aira caryophyllea, Aira praecox, Ammophila arenaria, Anthoxanthum odoratum, Catapodium marinum, Festuca rubra, Mibora minima, Phleum arenarium, Poa pratensis, Vulpia fasciculata

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