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Callitriche brutia – Pedunculate Water-starwort
Species, Flowering plant, Freshwater
Brigwlydd Coesog
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Callitriche cophocarpa
Species, Flowering plant, Freshwater
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Callitriche hamulata – Intermediate Water-starwort
Species, Flowering plant, Freshwater
Brigwlydd Canolig, Brigwlydd Cyfryngol
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Callitriche hermaphroditica – Autumnal Water-starwort
Species, Flowering plant, Freshwater
Annual Water-Starwort, Brigwlydd y Cynhaeaf, Brigwlydd, Brigwlydd Cynaeafol
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Callitriche obtusangula – Blunt-fruited Water-starwort
Species, Flowering plant, Freshwater
Blue-Fruited Water-Starwort, Brigwlydd Ffrwythau Blaendwn, Brigwlydd Ffrwyth-Aflem
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Callitriche palustris – Narrow-fruited Water-starwort
Species, Flowering plant, Freshwater
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Callitriche platycarpa – Various-leaved Water-starwort
Species, Flowering plant, Freshwater
Brigwlydd y Gwanwyn, Brigwlydd Gwanwynol
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Callitriche stagnalis – Common Water-starwort
Species, Flowering plant, Freshwater
Brigwlydd Cyffredin, Brigwlydd y Llynau, Llinhesg Llaca, Llinhesg y Dŵr, Brigwlydd y Dŵr
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Callitriche truncata – Short-leaved Water-starwort
Species, Flowering plant, Freshwater
Brigwlydd Brigddail, Brigwlydd Byrddail
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Digitalis purpurea – Foxglove
Species, Flowering plant, Freshwater
lus nam ban-sìth, lusan nam ban-sìth, meuran a' bhàis, meuran nan cailleachan marbha, meuran-sìth, ciochan nan cailleach marbha, Cleci Coch, Gwniadur Mair, Bysedd Cochion, Bysedd y Cŵn, Bysedd Ellyllon, Clatsh y Cŵn, Llwyn y Tewlaeth, Ffiol y Ffridd, Ffion Ffrith, Dail Ffion-Ffrwyth, Dail Crach, Dail Bysedd Cochion, Dail Llwynog, Ffuon Cochaf, Ffion y Ffridd, Maneg y Forwyn, Menyg
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Gratiola officinalis – Gratiole
Species, Flowering plant, Freshwater
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Hippuris vulgaris – Mare's-tail
Species, Flowering plant, Freshwater
Rhawn y Gaseg, Rhawn-y-Gaseg Cyffredin, Rhawn y March
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Littorella uniflora – Shoreweed
Species, Flowering plant, Freshwater
Beistonnell Ferllyn, Beisdonell Merllyn, Beistonnell Merllyn, Beistonnell
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Plantago lanceolata – Ribwort Plantain
Species, Flowering plant, Freshwater
Ceiliog a'r Iâr, Dail Ceiliog, Llyriad yr Ais, Astyllenes, Astyllenlys, Aslyllynes, Llyriaid yr Ais, Llwynhidydd, Llwyn y Neidr, Llwyndidill, Dail Llwyn y Neidr, Dalen Gryman, Llwyn Hidl, Estyllenlys, Llysiau yr Ais, Llyriad Llwynhidydd, Sawdl Crist, Traeturiaid y Bugeilyd, Pennau'r Gwyr
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Plantago major – Greater Plantain
Species, Flowering plant, Freshwater
Ratstail Plantain, Henllydan y Ffordd, Llydan y Ffordd, Cabaits y Llawr, Dail Llydan y Ffordd, Dail Llyriad, Llydain y Ffordd, Llwynfaidydd Mawr, Llyriad Cynffon Llygoden, Llyriad Mwyaf
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Plantago maritima – Sea Plantain
Species, Flowering plant, Freshwater
Llyriad y Môr, Llyriaid y Môr, Llyriad Arfor, Bara-Can y Defaid, Gwerog, Llyriad y Defaid, Llyriaid Arfor, Llwynhidydd Arfor, Mân y Don, Sampier y Defaid
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Sibthorpia europaea – Cornish Moneywort
Species, Flowering plant, Freshwater
Deilen Gron Cernyw, Ceinioglys
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Veronica anagallis-aquatica – Blue Water-speedwell
Species, Flowering plant, Freshwater
Water Speedwell, Graeanllys y Dŵr
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Veronica beccabunga – Brooklime
Species, Flowering plant, Freshwater
Yr Henwr, Goferini, Llysiau Taliesin, Gorferini, Llychlyn y Dŵr, Llysiau Taliesyn
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Veronica catenata – Pink Water-speedwell
Species, Flowering plant, Freshwater
Graeanllys-y-Dŵr Rhosliw, Graeanllys y Dŵr Rhuddgoch