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Azolla filiculoides – Water Fern non-native
Species, Fern, Freshwater
Rhedynen y Dŵr, Rhedyn y Dŵr
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Crassula helmsii – New Zealand Pigmyweed non-native
Species, Flowering plant, Freshwater
New Zealand Pygmyweed, mion-luibh Shealainn Nuaidh, Corchwyn Seland Newydd
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Fallopia japonica – Japanese Knotweed non-native
Species, Flowering plant, Freshwater, terrestrial
Clymog Japan
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Heracleum mantegazzianum – Giant Hogweed non-native
Species, Flowering plant, Freshwater, terrestrial
Efwr Enfawr
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Impatiens glandulifera – Himalayan Balsam non-native
Species, Flowering plant, Freshwater, terrestrial
Policeman's Helmet, Indian Balsam, Jac y Neidiwr, Penwisg Ddur Heddwas, Cap Dur Heddwas, Ffromlys Chwarennog
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Lagarosiphon major – Curly Waterweed non-native
Species, Flowering plant, Freshwater
Ffugalaw Crych, Pib-Flodyn Crych
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Lysichiton americanus – American Skunk-cabbage non-native
Species, Flowering plant, Freshwater, terrestrial
Skunk Cabbage, Pidyn-y-Gog Americanaidd
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Myriophyllum aquaticum – Parrot's-feather non-native
Species, Flowering plant, Freshwater
Parrot's Feather, Pluen Parot
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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Rhododendron ponticum – Rhododendron non-native
Species, Flowering plant, Freshwater, terrestrial
Rhododendron Wyllt
Establishment status: GB Establishment Status - Established
Priority species for Wales: Long-term management
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