Tenby Cliffs and St. Catherine's Island
Climate exposure
This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.
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.
Geology & landscape
Geological Feature: Cave / Cavern, Karst · Geological Period: Carboniferous · Rock Type: Carboniferous Limestone, Limestone, Millstone Grit, Mudstone
Landscape processes: Coastal, Karst
Birds & fish recorded
Fish
| Species | Season |
|---|---|
| Allis shad | Unknown |
| Twaite shad | Unknown |
Description
Description The site is of special interest for its littoral rock and sandy shore communities, including two nationally scarce seaweed and piddock communities, and specialised cave and overhang communities, an assemblage of nationally rare and scarce plants and two areas of geological importance for Carboniferous Limestone and Millstone Grit cliff exposures. The site comprises the cliffs and the foreshore around the town of Tenby in south Pembrokeshire. GEOLOGY Dinantian: South Cliffs show continuous exposures of the Carboniferous Limestone in a thinner development than those seen both on the Gower and further west in south Pembrokeshire. The section includes a Chadian to Arundian sequence important in the elucidation of regressive-transgressive (essentially sea-level variations which, at the extremes, are marked by phases of emergence through to normal deeper-water marine conditions) events in mid-Lower Carboniferous times. The Caswell Bay Mudstone is associated with a major karstic surface, and is overlain by transgressive Arundian limestones. This is a site with much potential for the future study of facies in the Carboniferous Limestone. Namurian: Tenby Beach (north) displays the best Namurian section on the “South Crop” in south Wales. Although structurally complex, the numerous and readily recognised marine bands permit a clear sequence to be drawn up. This has been of vital importance to the understanding of Namurian palaeoenvironments. The presence of the marine bands and obvious “way-up” criteria in these sections has been a key factor in the elucidation of the structure of the Pembrokeshire Coalfield. It is a prime educational facility for its structural features. BIOLOGY The site comprises mainly sandy shores backed by cliffs at the southern end, sea walls in the mid-section and boulders and rock platforms at the base of unstable cliffs at the northern end. Upper shore sand supports communities characterised by amphipods Bathyporeia sp. and Haustorius arenarius, and isopods such as Eurydice pulchra. The mid shore and lower sands are populated by segmented worms such as catworms Nephtys sp., and lug worm Arenicola marina. Fine sand is present in limited areas to the north of Castle Head where the common heart-urchin Echinocardium cordatum occurs near the sublittoral fringe. The northern end of North Beach supports low numbers of the thin tellin Angulus tenuis and juvenile bivalve molluscs including cockle Cerastoderma edule and Spisula sp. The harbour contains sandy mud with a black anoxic layer just below the surface where cockles occur in high density in places. The small beach at the rear supports an amphipod and isopod community. Elsewhere, where rock comes down to the sublittoral fringe, sometimes in overhangs, rich animal communities occur. Dominant species include the sponges Hymeniacidon perleve, Microciona atrasanguinea, purse sponge Grantia compressa, boring sponge Cliona celata, as well as the sea squirts Morchellium argus, Aplidium proliferum, Botrylloides leachi and the star sea squirt Botryllus schlosseri. Although less widespread, there are also red algae-dominated overhangs with species such as Plocamium cartilagineum, Lomentaria articulata and pepper dulse Osmundea pinnatifida. The latter species also occurs with serrated wrack and caragheen moss Mastocarpus stellatus around the edges of lower shore rocks. Where sand occurs at the base of these rocks, the red alga Rhodothamniella floridula and the keel worm Pomatoceros sp. occurs. The bedrock around Castle Head and St Catherine’s also supports the wrinkled rock borer Hiatella arctica, often associated with red algal communities including sea mare’s tail Halurus equisetifolius and Lomentaria articulata, together with barnacles Balanus perforatus and polychaetes Polydora sp. Under-boulder communities here contain a variety of crabs including the long-clawed and broad-clawed porcelain crabs Pisidia longicornis and Porcellana platycheles, edible crab Cancer pagurus and shore crab, Carcinus maenas. The unusually extensive, species rich overhangs on St Catherine’s Island, along with numerous gullies, caves and tunnels are of particular interest. They support especially diverse and colourful communities of sponges, sea squirts and sea mats (bryozoans). The boring sponge is frequent, together with the breadcrumb sponge Halichondria panicea, and the bright orange Hymeniacidon perleve. Occasional specimens of the blood-red-coloured sponge Ophlitaspongia seriata occur here. Hydroids such as Dynamena pumila and Obelia sp are found throughout the overhangs, together with anemones such as the snakelocks anemone Anemonia viridis, Sagartia elegans and plumose anemone Metridium senile and colonial sea-squirts such as Polyclinum aurantium, Morchellium argus and Aplidium proliferum. Large areas of rock within these caves and tunnels are completely dominated by bryozoans such as Anguinella palmata, and Electra pilosa and Cryptosula pallasiana are common. Away from the caves and tunnels further up the shore, a band of mussels Mytilus edulis occurs below a barnacle and limpet Patella sp. zone, with barnacle species including Semibalanus balanoides, Eliminius modestus and Chthamalus sp. Pools amongst the barnacle and limpet encrusted rocks are mostly dominated by coralline algae but deep wrack and kelp pools occur towards the northern end of the site. The sea and harbour walls are barnacle and limpet encrusted where exposed to wave action: sheltered surfaces support fucoids such as channel wrack Pelvetia canaliculata, bladder wrack Fucus vesiculosus, and spiral wrack F. spiralis. Black tar lichen Verrucaria maura occurs on both artificial substrata and natural rock, as do the yellow and grey lichens that characterise this uppermost littoral community. Allis shad Alosa alosa and twaite shad A. fallax have been observed in the intertidal waters of this shore. The cliffs support very small areas of maritime cliff and crevice vegetation, including rock samphire Crithmum maritimum, thrift Armeria maritima, and rock sea-spurrey Spergularia rupicola. Scrub dominated by gorse Ulex europaeus, bramble Rubus fruticosus and blackthorn Prunus spinosa occurs mainly on the cliffs in the northern half of the site and a small area of secondary woodland occurs above North Beach. Parts of the cliff habitat have been modified, and garden escapes have been observed on the cliffs from time to time. The nationally scarce golden samphire Inula crithmoides occurs along the cliffs at South Beach, together with the nationally scarce wild cabbage Brassica oleracea, and the nationally rare small tree-mallow Lavatera cretica. These sea cliffs also support the nationally rare rock sea-lavender Limonium procerum as well as the nationally scarce Portland spurge Euphorbia portlandica, the dotted sedge Carex punctata and the parasitic ivy broomrape Orobanche hederae. Remarks: The SSSI lies within Pembrokeshire Coast National Park. The site lies within the Carmarthen Bay and Estuaries Special Area of Conservation for its mudflats and sandflats not covered by seawater at low tide features and as part of the large shallow inlets and bays feature. The allis and twaite shad Alosa alosa and Alosa fallax are listed in Annex IIa of the EC Habitats Directive (Directive 92/43/EEC on the Conservation of Natural Habitats and of Wild Fauna and Flora).
Species mentioned
Show the 58 species mentioned in the description, with red-list status| English name search for this in other sites |
Latin name search with Google |
IUCN / Red List | Type | Family |
|---|---|---|---|---|
| bladder wrack | Fucus vesiculosus | Not listed in GB list | algae brown | fucaceae |
| channel wrack | Pelvetia canaliculata | Not listed in GB list | algae brown | fucaceae |
| sea horsetail | Halurus equisetifolius | Not listed in GB list | algae red | ceramiaceae |
| bunny-eared bead weed | Lomentaria articulata | Not listed in GB list | algae red | lomentariaceae |
| grape pip weed | Mastocarpus stellatus | Not listed in GB list | algae red | phyllophoraceae |
| pepper dulse | Osmundea pinnatifida | Not listed in GB list | algae red | rhodomelaceae |
| cock's comb | Plocamium cartilagineum | Not listed in GB list | algae red | plocamiaceae |
| sand binder | Rhodothamniella floridula | Not listed in GB list | algae red | rhodymeniaceae |
| amphipod | Bathyporeia | Not listed in GB list | amphipod | bathyporeiidae |
| snakelocks anemone | Anemonia viridis | Not listed in GB list | anemone | actiniidae |
| plumose anemone | Metridium senile | Not listed in GB list | anemone | metridiidae |
| anemone | Sagartia elegans | Not listed in GB list | anemone | sagartiidae |
| barnacle | Balanus perforatus | Not listed in GB list | barnacle | balanidae |
| barnacle | Eliminius modestus | Not listed in GB list | barnacle | austrobalanidae |
| acorn barnacle | Semibalanus balanoides | Not listed in GB list | barnacle | archaeobalanidae |
| thin tellin | Angulus tenuis | Not listed in GB list | bivalve | tellinidae |
| cockle | Cerastoderma edule | Not listed in GB list | bivalve | cardiidae |
| wrinkled rock borer | Hiatella arctica | Not listed in GB list | bivalve | hiatellidae |
| blue mussel | Mytilus edulis | LC | bivalve | mytilidae |
| bryozoan | Anguinella palmata | Not listed in GB list | bryozoan | nolellidae |
| bryozoan | Cryptosula pallasiana | Not listed in GB list | bryozoan | cryptosulidae |
| bryozoan | Electra pilosa | Not listed in GB list | bryozoan | electridae |
| edible crab | Cancer pagurus | Not listed in GB list | crustacean | cancridae |
| shore crab | Carcinus maenas | Not listed in GB list | crustacean | portunidae |
| long-clawed porcelain crab | Pisidia longicornis | Not listed in GB list | crustacean | porcellanidae |
| broad-clawed porcelain crab | Porcellana platycheles | Not listed in GB list | crustacean | porcellanidae |
| sea potato | Echinocardium cordatum | Not listed in GB list | echinoderm | loveniidae |
| Allis shad | Alosa alosa | CR | fish | clupeidae |
| Twaite shad | Alosa fallax | VU | fish | clupeidae |
| thrift | Armeria maritima | CR | herb | plumbaginaceae |
| wild cabbage | Brassica oleracea | LC | herb | brassicaceae |
| rock samphire | Crithmum maritimum | LC | herb | apiaceae |
| Portland spurge | Euphorbia portlandica | LC | herb | euphorbiaceae |
| golden samphire | Inula crithmoides | Not listed in GB list | herb | asteraceae |
| Cretan mallow | Lavatera cretica | Not listed in GB list | herb | malvaceae |
| rock sea-lavender | Limonium procerum | Not listed in GB list | herb | plumbaginaceae |
| ivy broomrape | Orobanche hederae | LC | herb | orobanchaceae |
| bramble | Rubus fruticosus | LC | herb | rosaceae |
| rock spurrey | Spergularia rupicola | LC | herb | carophyllaceae |
| hydroid | Dynamena pumila | Not listed in GB list | hydroid | sertulariidae |
| sea tar | Verrucaria maura | Not listed in GB list | lichen | no common name |
| blow lugworm | Arenicola marina | Not listed in GB list | polychaete | arenicolidae |
| speckled sea louse | Eurydice pulchra | Not listed in GB list | sea louse | cirolanidae |
| sea squirt | Aplidium proliferum | Not listed in GB list | seasquirt | polyclinidae |
| sea squirt | Botrylloides leachi | Not listed in GB list | seasquirt | styelidae |
| star ascidian | Botryllus schlosseri | Not listed in GB list | seasquirt | styelidae |
| sea squirt | Morchellium argus | Not listed in GB list | seasquirt | polyclinidae |
| sea squirt | Polyclinum aurantium | Not listed in GB list | seasquirt | polyclinidae |
| dotted sedge | Carex punctata | LC | sedge | cyperaceae |
| gammarid | Haustorius arenarius | Not listed in GB list | shrimp | haustoriidae |
| blackthorn | Prunus spinosa | LC | shrub | rosaceae |
| gorse | Ulex europaeus | LC | shrub | leguminosae |
| boring sponge | Cliona celata | Not listed in GB list | sponge | clionaidae |
| purse sponge | Grantia compressa | Not listed in GB list | sponge | grantiidae |
| breadcomb sponge | Halichondria panicea | Not listed in GB list | sponge | halichondriidae |
| sponge | Hymeniacidon perleve | Not listed in GB list | sponge | halichondriidae |
| sponge | Microciona atrasanguinea | Not listed in GB list | sponge | microcionidae |
| blood-red-coloured sponge | Ophlitaspongia seriata | Not listed in GB list | sponge | microcionidae |
Plant communities
H7 — Hard cliff and cliff slope, Lowland dry heath
Calluna vulgaris-Scilla verna heath
Show 70 indicator speciesSalix repens, Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica cinerea, Erica tetralix, Erica vagans, Juniperus communis, Ulex europaeus, Carex caryophyllea, Carex flacca, Carex nigra, Carex panicea, Carex pulicaris, Carex serotina, Luzula campestris, Luzula multiflora, Selaginella selaginoides, Hypnum cupressiforme, Frullania tamarisci, Cladonia chlorophaea, Cladonia rangiformis, Daucus carota, Achillea millefolium, Hypochaeris radicata, Leontodon saxatilis, Leucanthemum vulgare, Scorzoneroides autumnalis, Serratula tinctoria, Jasione montana, Succisa pratensis, Cerastium diffusum, Cerastium fontanum, Silene uniflora, Sedum anglicum, Anthyllis vulneraria, Astragalus danicus, Genista pilosa, Lotus corniculatus, Trifolium repens, Centaurium erythraea, Thymus praecox, Scilla verna, Dactylorhiza purpurella, Euphrasia officinalis, Plantago coronopus, Plantago lanceolata, Plantago maritima, Armeria maritima, Polygala serpyllifolia, Polygala vulgaris, Rumex acetosa, Primula vulgaris, Filipendula vulgaris, Potentilla erecta, Galium verum, Viola riviniana, Agrostis capillaris, Agrostis stolonifera, Aira caryophyllea, Aira praecox, Anthoxanthum odoratum, Dactylis glomerata, Danthonia decumbens, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Molinia caerulea, Nardus stricta, Chara curta
H8 — Hard cliff and cliff slope, Lowland dry heath, Upland dry heath
Calluna vulgaris-Ulex gallii heath
Show 59 indicator speciesCalluna vulgaris, Erica cinerea, Erica tetralix, Vaccinium myrtillus, Ulex europaeus, Ulex gallii, Carex binervis, Carex caryophyllea, Carex flacca, Carex pilulifera, Campylopus flexuosus, Dicranum scoparium, Hypnum cupressiforme, Pleurozium schreberi, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Polytrichum juniperinum, Polytrichum piliferum, Cladonia impexa, Cladonia squamosa, Hypochaeris radicata, Jasione montana, Lotus corniculatus, Hypericum pulchrum, Teucrium scorodonia, Thymus praecox, Scilla verna, Linum catharticum, Pedicularis sylvatica, Digitalis purpurea, Plantago lanceolata, Plantago maritima, Polygala serpyllifolia, Rumex acetosella, Potentilla erecta, Poterium sanguisorba, Rubus fruticosus agg., Galium saxatile, Galium verum, Viola lactea, Viola riviniana, Agrostis capillaris, Agrostis curtisii, Agrostis stolonifera, Agrostis vinealis, Aira praecox, Anthoxanthum odoratum, Avenula pubescens, Brachypodium sylvaticum, Dactylis glomerata, Danthonia decumbens, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Holcus lanatus, Molinia caerulea, Nardus stricta, Pteridium aquilinum, Chara curta
MC1 — Hard cliff and cliff slope
Crithmum maritimum-Spergularia rupicola maritime rock-crevice community
Show 19 indicator speciesTortella flavovirens, Crithmum maritimum, Daucus carota, Inula crithmoides, Tripleurospermum maritimum, Cochlearia danica, Cochlearia officinalis, Cerastium diffusum, Silene uniflora, Spergularia rupicola, Atriplex hastata, Plantago coronopus, Plantago maritima, Armeria maritima, Limonium binervosum, Catapodium marinum, Festuca rubra, Parapholis incurva, Asplenium marinum
MC2 — Hard cliff and cliff slope
Armeria maritima-Ligusticum scoticum maritime rock-crevice community
Show 17 indicator speciesSchistidium maritimum, Ligusticum scoticum, Scorzoneroides autumnalis, Tripleurospermum maritimum, Cochlearia officinalis, Cerastium fontanum, Silene uniflora, Spergularia rupicola, Atriplex hastata, Sedum rosea, Plantago coronopus, Plantago maritima, Armeria maritima, Rumex crispus, Agrostis stolonifera, Festuca rubra, Asplenium marinum
MC3 — Hard cliff and cliff slope
Rhodiola rosea-Armeria maritima 36-ledge community
Show 15 indicator speciesAngelica sylvestris, Ligusticum scoticum, Scorzoneroides autumnalis, Tripleurospermum maritimum, Silene dioica, Silene uniflora, Sedum rosea, Lotus corniculatus, Plantago lanceolata, Plantago maritima, Armeria maritima, Rumex acetosa, Agrostis stolonifera, Festuca rubra, Holcus lanatus
MC4 — Hard cliff and cliff slope
Brassica oleracea 36-ledge community
Show 33 indicator speciesDaucus carota, Centaurea nigra, Centaurea scabiosa, Cirsium arvense, Echium vulgare, Jacobaea vulgaris, Leucanthemum vulgare, Pilosella officinarum, Senecio vulgaris, Sonchus oleraceus, Taraxacum officianalis, Tragopogon pratensis, Brassica nigra, Brassica oleracea, Cheiranthus cheiri, Silene nutans, Silene uniflora, Sedum acre, Anthyllis vulneraria, Ononis repens, Teucrium scorodonia, Plantago coronopus, Plantago lanceolata, Armeria maritima, Rumex acetosa, Potentilla reptans, Galium aparine, Agrostis stolonifera, Brachypodium pinnatum, Bromus hordeaceous, Dactylis glomerata, Festuca rubra, Schedonorus arundinaceus
MC5 — Hard cliff and cliff slope
Armeria maritima-Cerastium diffusum ssp. diffusum maritime therophyte community
Show 77 indicator speciesCarex flacca, Hypnum cupressiforme, Tortella flavovirens, Cladonia chlorophaea, Cladonia foliacea, Cladonia rangiformis, Collema spp., Daucus carota, Achillea millefolium, Bellis perennis, Cirsium acaule, Echium vulgare, Jacobaea vulgaris, Leontodon saxatilis, Pilosella officinarum, Senecio vulgaris, Sonchus oleraceus, Taraxacum officianalis, Tripleurospermum maritimum, Myosotis ramosissima, Brassica oleracea, Cochlearia danica, Cochlearia officinalis, Diplotaxis muralis, Jasione montana, Arenaria serpyllifolia, Cerastium diffusum, Cerastium fontanum, Herniaria ciliolata, Sagina apetala, Sagina maritima, Silene uniflora, Spergularia rupicola, Atriplex littoralis, Sedum acre, Sedum anglicum, Euphorbia portlandica, Anthyllis vulneraria, Hippocrepis comosa, Lotus corniculatus, Trifolium arvense, Trifolium occidentale, Trifolium repens, Trifolium scabrum, Vicia sativa, Centaurium erythraea, Eriodium cicutarium, Salvia verbenaca, Thymus praecox, Scilla autumnalis, Scilla verna, Radiola linoides, Plantago coronopus, Plantago lanceolata, Plantago maritima, Veronica arvensis, Armeria maritima, Ranunculus acris, Reseda lutea, Filipendula vulgaris, Poterium sanguisorba, Galium verum, Agrostis capillaris, Agrostis stolonifera, Aira caryophyllea, Aira praecox, Brachypodium pinnatum, Bromus hordeaceous, Catapodium marinum, Catapodium rigidum, Dactylis glomerata, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Lolium perenne, Schedonorus arundinaceus
MC6 — Coastal vegetated shingle, Hard cliff and cliff slope
Atriplex prostrata-Beta vulgaris ssp. maritima sea-bird cliff community
Show 17 indicator speciesDaucus carota, Sonchus oleraceus, Taraxacum officianalis, Tripleurospermum maritimum, Cochlearia officinalis, Silene uniflora, Spergularia rupicola, Atriplex hastata, Malva arborea, Plantago coronopus, Armeria maritima, Polygonum aviculare, Rumex crispus, Bromus hordeaceous, Catapodium marinum, Dactylis glomerata, Festuca rubra
MC7 — Hard cliff and cliff slope
Stellaria media-Rumex acetosa sea-bird cliff community
Show 24 indicator speciesJuncus articulatus, Scorzoneroides autumnalis, Senecio vulgaris, Tripleurospermum maritimum, Cochlearia officinalis, Cerastium fontanum, Cerastium glomeratum, Silene uniflora, Spergula arvensis, Stellaria media agg., Atriplex hastata, Sedum anglicum, Trifolium repens, Plantago maritima, Armeria maritima, Polygonum aviculare, Rumex acetosa, Rumex crispus, Potentilla anserina, Agrostis stolonifera, Festuca rubra, Holcus lanatus, Poa annua, Poa pratensis
MC8 — Hard cliff and cliff slope
Festuca rubra-Armeria maritima maritime grassland
Show 45 indicator speciesCarex caryophyllea, Carex distans, Kindbergia praelonga, Tortella flavovirens, Trichostomum brachydontium, Angelica sylvestris, Crithmum maritimum, Daucus carota, Ligusticum scoticum, Achillea millefolium, Cirsium arvense, Hypochaeris radicata, Inula crithmoides, Leontodon saxatilis, Scorzoneroides autumnalis, Sonchus oleraceus, Tripleurospermum maritimum, Brassica oleracea, Cochlearia danica, Cochlearia officinalis, Cerastium diffusum, Cerastium fontanum, Sagina apetala, Sagina maritima, Silene uniflora, Spergularia rupicola, Sedum anglicum, Anthyllis vulneraria, Lotus corniculatus, Trifolium repens, Centaurium erythraea, Scilla verna, Plantago coronopus, Plantago lanceolata, Plantago maritima, Armeria maritima, Rumex acetosa, Potentilla erecta, Agrostis stolonifera, Brachypodium pinnatum, Catapodium marinum, Dactylis glomerata, Festuca rubra, Holcus lanatus, Poa subcaerulea
MC9 — Hard cliff and cliff slope
Festuca rubra-Holcus lanatus maritime grassland
Show 67 indicator speciesEmpetrum nigrum subsp.nigrum, Carex caryophyllea, Carex flacca, Carex nigra, Carex panicea, Luzula campestris, Hypnum cupressiforme, Kindbergia praelonga, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Trichostomum brachydontium, Cladonia chlorophaea, Peltigera canina, Angelica sylvestris, Conopodium majus, Daucus carota, Heracleum sphondylium, Achillea millefolium, Bellis perennis, Centaurea nigra, Hypochaeris radicata, Jacobaea vulgaris, Leontodon saxatilis, Leucanthemum vulgare, Pilosella officinarum, Scorzoneroides autumnalis, Serratula tinctoria, Solidago virgaurea, Cochlearia officinalis, Campanula rotundifolia, Cerastium diffusum, Cerastium fontanum, Sagina apetala, Silene uniflora, Sedum anglicum, Euphorbia portlandica, Anthyllis vulneraria, Genista tinctoria, Lotus corniculatus, Trifolium repens, Geranium sanguineum, Thymus praecox, Scilla verna, Euphrasia officinalis, Plantago lanceolata, Plantago maritima, Armeria maritima, Rumex acetosa, Rumex crispus, Ficaria verna, Ranunculus acris, Potentilla erecta, Galium verum, Viola riviniana, Agrostis capillaris, Agrostis stolonifera, Aira praecox, Anthoxanthum odoratum, Brachypodium sylvaticum, Dactylis glomerata, Danthonia decumbens, Deschampsia flexuosa, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Poa pratensis
MC10 — Maritime cliff
Festuca rubra-Plantago spp. maritime grassland
Show 64 indicator speciesSalix repens, Empetrum nigrum subsp.nigrum, Calluna vulgaris, Erica tetralix, Carex nigra, Carex panicea, Carex serotina, Schoenus nigricans, Juncus acutiflorus, Luzula campestris, Selaginella selaginoides, Mnium hornum, Hypnum cupressiforme, Angelica sylvestris, Daucus carota, Hydrocotyle vulgaris, Bellis perennis, Hypochaeris radicata, Leontodon saxatilis, Scorzoneroides autumnalis, Cochlearia officinalis, Succisa pratensis, Cerastium diffusum, Cerastium fontanum, Sagina apetala, Sagina procumbens, Silene acaulis, Silene uniflora, Parnassia palustris, Sedum anglicum, Anthyllis vulneraria, Lotus corniculatus, Trifolium repens, Gentianella campestris, Thymus praecox, Pinguicula vulgaris, Scilla verna, Linum catharticum, Dactylorhiza purpurella, Euphrasia officinalis, Plantago coronopus, Plantago lanceolata, Plantago maritima, Armeria maritima, Polygala serpyllifolia, Rumex acetosa, Anagallis tenella, Primula vulgaris, Ranunculus acris, Ranunculus flammula, Potentilla erecta, Viola riviniana, Agrostis capillaris, Agrostis stolonifera, Aira praecox, Anthoxanthum odoratum, Danthonia decumbens, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Molinia caerulea, Nardus stricta, Poa pratensis
MC11 — Maritime cliff
Festuca rubra-Daucus carota ssp. gummifer maritime grassland
Show 65 indicator speciesCarex caryophyllea, Carex flacca, Crithmum maritimum, Daucus carota, Achillea millefolium, Bellis perennis, Carlina vulgaris, Centaurea nigra, Centaurea scabiosa, Cirsium acaule, Cirsium vulgare, Echium vulgare, Hypochaeris radicata, Jacobaea vulgaris, Leontodon saxatilis, Leucanthemum vulgare, Pilosella officinarum, Senecio vulgaris, Sonchus oleraceus, Taraxacum officianalis, Impatiens nolitangere, Brassica oleracea, Crambe maritima, Arenaria serpyllifolia, Silene nutans, Silene uniflora, Convolvulus arvensis, Sedum acre, Euphorbia portlandica, Anthyllis vulneraria, Hippocrepis comosa, Lotus corniculatus, Medicago lupulina, Ononis repens, Trifolium repens, Vicia sativa, Blackstonia perfoliata, Centaurium erythraea, Teucrium scorodonia, Thymus praecox, Scilla verna, Glaucium flavum, Plantago coronopus, Plantago lanceolata, Armeria maritima, Rumex acetosa, Ranunculus acris, Ranunculus bulbosus, Potentilla reptans, Poterium sanguisorba, Galium verum, Agrostis capillaris, Agrostis stolonifera, Brachypodium pinnatum, Bromus hordeaceous, Catapodium marinum, Cynosurus cristatus, Dactylis glomerata, Festuca ovina, Festuca rubra, Holcus lanatus, Koeleria macrantha, Lolium perenne, Schedonorus arundinaceus, Chara curta
MC12 — Maritime cliff
Festuca rubra-Hyacinthoides non-scripta maritime bluebell community
Show 33 indicator speciesHedera helix, Daucus carota, Heracleum sphondylium, Achillea millefolium, Cirsium vulgare, Hypochaeris radicata, Sonchus oleraceus, Cochlearia danica, Cochlearia officinalis, Silene uniflora, Spergularia rupicola, Sedum telephium, Lotus corniculatus, Lotus pedunculatus, Ononis repens, Vicia sativa, Hyacinthoides non-scripta, Scilla verna, Plantago lanceolata, Armeria maritima, Rumex acetosa, Ficaria verna, Potentilla erecta, Rubus fruticosus agg., Galium verum, Viola riviniana, Anthoxanthum odoratum, Arrhenatherum elatius, Brachypodium sylvaticum, Dactylis glomerata, Festuca rubra, Holcus lanatus, Pteridium aquilinum
MG1 — Brownfield, Hard cliff and cliff slope
Arrhenatherum elatius grassland
Show 102 indicator speciesHedera helix, Luzula campestris, Brachythecium rutabulum, Kindbergia praelonga, Pseudoscleropodium purum, Rhytidiadelphus squarrosus, Aegopodium podagraria, Anthriscus sylvestris, Conopodium majus, Daucus carota, Heracleum sphondylium, Pimpinella major, Pimpinella saxifraga, Achillea millefolium, Artemisia vulgaris, Carduus nutans, Centaurea nigra, Centaurea scabiosa, Cirsium arvense, Cirsium vulgare, Hypochaeris radicata, Jacobaea vulgaris, Leontodon hispidus, Leucanthemum vulgare, Sonchus asper, Taraxacum officianalis, Capsella bursa-pastoris, Campanula rotundifolia, Knautia arvensis, Scabiosa columbaria, Cerastium fontanum, Silene nutans, Stellaria graminea, Convolvulus arvensis, Lathyrus pratensis, Lotus corniculatus, Lotus pedunculatus, Trifolium pratense, Trifolium repens, Vicia cracca, Vicia sativa, Vicia sepium, Geranium dissectum, Hypericum perforatum, Clinopodium vulgare, Glechoma hederacea, Lamium album, Origanum vulgare, Teucrium scorodonia, Thymus praecox, Linum catharticum, Chamerion angustifolium, Epilobium hirsutum, Epipactis purpurata, Rhinanthus minor, Papaver dubium, Plantago lanceolata, Veronica chamaedrys, Rumex acetosa, Rumex crispus, Rumex obtusifolius, Primula veris, Primula vulgaris, Ficaria verna, Ranunculus acris, Ranunculus bulbosus, Ranunculus repens, Agrimonia eupatoria, Filipendula ulmaria, Potentilla reptans, Poterium sanguisorba, Rubus fruticosus agg., Galium aparine, Galium mollugo sens.lat., Galium verum, Urtica dioica, Agrostis capillaris, Agrostis stolonifera, Alopecurus pratensis, Anisantha sterilis, Anthoxanthum odoratum, Arrhenatherum elatius, Avenula pubescens, Brachypodium sylvaticum, Briza media, Bromopsis erecta, Bromus hordeaceous, Cynosurus cristatus, Dactylis glomerata, Elytrigia repens, Festuca ovina, Festuca rubra, Holcus lanatus, Holcus mollis, Lolium perenne, Phleum pratense, Poa pratensis, Poa trivialis, Schedonorus pratensis, Trisetum flavescens, Pteridium aquilinum, Chara vulgaris
MG10 — Coastal floodplain grazing marsh, Hard cliff and cliff slope, Upland rush pasture
Holcus lanatus-Juncus effusus rush-pasture
Show 58 indicator speciesCarex hirta, Carex panicea, Juncus articulatus, Juncus effusus, Juncus inflexus, Calliergonell cuspidatum, Kindbergia praelonga, Angelica sylvestris, Oenanthe crocata, Caltha palustris, Cirsium arvense, Cirsium palustre, Pulicaria dysenterica, Senecio aquaticus, Taraxacum officianalis, Myosotis scorpioides, Cardamine pratensis, Cerastium fontanum, Silene flos-cuculi, Stellaria alsine, Equisetum arvense, Equisetum palustre, Lotus pedunculatus, Trifolium pratense, Trifolium repens, Vicia cracca, Iris pseudacorus, Mentha aquatica, Plantago lanceolata, Plantago major, Polygonum hydropiper, Rumex acetosa, Rumex conglomeratus, Rumex crispus, Rumex obtusifolius, Primula vulgaris, Ranunculus acris, Ranunculus repens, Filipendula ulmaria, Potentilla anserina, Urtica dioica, Agrostis capillaris, Agrostis stolonifera, Alopecurus geniculatus, Alopecurus pratensis, Anthoxanthum odoratum, Cynosurus cristatus, Dactylis glomerata, Festuca rubra, Festulolium loliaceum, Glyceria fluitans, Holcus lanatus, Lolium perenne, Phalaris arundinacea, Phleum pratense, Poa pratensis, Poa trivialis, Schedonorus pratensis
MG11 — Brownfield, Coastal floodplain grazing marsh, Hard cliff and cliff slope
Festuca rubra-Agrostis stolonifera-Potentilla anserina grassland
Show 64 indicator speciesAtriplex portulacoides, Carex arenaria, Carex distans, Juncus articulatus, Juncus bufonius, Juncus gerardii, Brachythecium rutabulum, Odontites verna, Oenanthe lachenalii, Bellis perennis, Cirsium arvense, Cirsium vulgare, Hypochaeris radicata, Matricaria discoidea, Scorzoneroides autumnalis, Senecio aquaticus, Sonchus asper, Taraxacum officianalis, Tripleurospermum maritimum, Cochlearia anglica, Cochlearia officinalis, Cerastium fontanum, Honckenya peploides, Sagina procumbens, Silene dioica, Silene uniflora, Stellaria media agg., Atriplex hastata, Lotus corniculatus, Trifolium repens, Triglochin maritimum, Plantago lanceolata, Plantago major, Plantago maritima, Polygonum aviculare, Rumex acetosa, Rumex crispus, Rumex obtusifolius, Glaux maritima, Ranunculus acris, Ranunculus repens, Potentilla anserina, Potentilla reptans, Galium aparine, Urtica dioica, Agrostis capillaris, Agrostis stolonifera, Alopecurus geniculatus, Ammophila arenaria, Arrhenatherum elatius, Bromus hordeaceous, Dactylis glomerata, Elytrigia juncea, Elytrigia repens, Festuca rubra, Holcus lanatus, Lolium perenne, Parapholis strigosa, Phleum pratense, Poa annua, Poa pratensis, Poa trivialis, Schedonorus arundinaceus, Schedonorus pratensis
MG12 — Coastal floodplain grazing marsh, Hard cliff and cliff slope
Festuca arundinacea grassland
Show 56 indicator speciesAtriplex portulacoides, Carex distans, Carex nigra, Carex otrubae, Eleocharis uniglumis, Juncus acutiflorus, Juncus articulatus, Juncus gerardii, Juncus inflexus, Juncus maritimus, Kindbergia praelonga, Odontites verna, Oenanthe crocata, Oenanthe lachenalii, Torilis japonica, Cirsium arvense, Hypochaeris radicata, Scorzoneroides autumnalis, Sonchus arvensis, Taraxacum officianalis, Tripleurospermum maritimum, Cerastium fontanum, Stellaria media agg., Atriplex hastata, Equisetum palustre, Lathyrus pratensis, Lotus corniculatus, Trifolium pratense, Trifolium repens, Vicia cracca, Iris pseudacorus, Triglochin maritimum, Triglochin palustre, Plantago lanceolata, Plantago major, Plantago maritima, Rumex crispus, Glaux maritima, Ranunculus acris, Potentilla anserina, Galium palustre, Agrostis capillaris, Agrostis stolonifera, Anthoxanthum odoratum, Arrhenatherum elatius, Cynosurus cristatus, Dactylis glomerata, Elytrigia atherica, Elytrigia repens, Festuca rubra, Holcus lanatus, Lolium perenne, Phragmites australis, Poa pratensis, Schedonorus arundinaceus, Schedonorus pratensis
W20 — Montane scrub
Salix lapponum-Luzula sylvatica scrub
Show 107 indicator speciesSalix 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
Show 81 indicator speciesHedera 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
Show 49 indicator speciesHedera 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