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Map of the sites holding the search term ""Polygonum oxyspermum subsp. Raii""

There are 8 sites that mention "Polygonum oxyspermum subsp. Raii".

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…y threatened shore dock Rumex rupestris and nationally endangered sea knotgrass Polygonum maritimum. The site also supports significant populations of other notable plant species including the nationally scarce slender bird’s-foot trefoil Lotus angustissimus, hairy bird’s-foot tr…

Allt Wen a Traeth Tanybwlch

…lays stages in colonisation from isolated plants of sea campion Silene vulgaris subsp. Maritima and sea herb-robert Geranium robertianum subsp. Maritimum to a closed sward dominated by red fescue Festuca rubra, with crested hair-grass Koeleria Cristata, rough clover Trifolium sca…

Morecambe Bay

…ated in some localities, as at Newbiggin where species such as Ray's knot grass Polygonum oxyspermum ssp. raii, sea rocket Cakile maritima, sea kale Crambe maritima, yellow horned poppy Glaucium flavum, sea holly Eryngium maritimum and sea sandwort Honckenya peploides are present…

Broomhill Burrows

… horsetail Equisetum variegatum, whilst the strandline supports Ray's knotgrass Polygonum oxyspermum ssp raii and sea radish Raphanus maritimus. Where the dune gives way to Old Red Sandstone cliffs, rock sea-lavender Limonium binervosum, golden samphire Inula crithmoides and Port…

Duddon Estuary

… prostrata, sea rocket Cakile maritima and two uncommon species Ray's knotgrass Polygonum oxyspermum ssp. raii and sea kale Crambe maritima. Rising up from the shingle beach are the mobile and yellow dune ridges. These are dominated by marram grass Ammophila arenaria together wit…

Bridgwater Bay

… rare compact brome Anisantha madritensis and nationally scarce Ray's Knotgrass Polygonum oxyspermum. The development of shingle ridges and construction of sea defences has prevented tidal inundation and encouraged a transition from saltmarsh to grazing marsh on Pawlett Hams, Wi…

Drigg Coast

…rtland spurges Euphorbia paralias and Euphorbia portlandica and Ray's knotgrass Polygonum oxyspermum. Fragmented low fore dunes grade into marram dominated mobile dunes centred on the two spits. Here additional species include sea holly, sea bindweed and blue fleabane Erigeron a…

Outer Belfast Lough

…ains some notable plants such as spring squill Scilla verna and Ray's knotgrass Polygonum oxyspermum. Birds from Inner Belfast Lough regularly use Outer Belfast Lough for feeding, and the populations of the two areas are closely linked. However, the area is significant in its own…

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