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Carex echinata – Star Sedge
Species, Flowering plant, Freshwater
Hesgen Bigog Leiaf, Sêr-Hesgen, Sêr-Hesg, Hesgen Seraidd
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Carex elata – Tufted-sedge
Species, Flowering plant, Freshwater
Tufted Sedge, Swp-Hesgen y Fawnog, Hesgen Duswog, Hesgen Oleulas Sythddail, Hesg Tuswog
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Carex elongata – Elongated Sedge
Species, Flowering plant, Freshwater
Hesgen Hir, Hesg Hirion
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Carex flacca – Glaucous Sedge
Species, Flowering plant, Freshwater
Hesgen Oleulas Wyrgamddail, Hesgen Lwydlas y Calch, Hesgen Oleulas
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Carex flava – Large Yellow-sedge
Species, Flowering plant, Freshwater
Large Yellow Sedge, Hesg Melynaidd, Hesgen Felen Fawr
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Carex hirta – Hairy Sedge
Species, Flowering plant, Freshwater
Hesgen Flewog, Hesg Blewog
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Carex hostiana – Tawny Sedge
Species, Flowering plant, Freshwater
Hesgen Dywell-Felen, Hesgen Felynllwyd, Hesgen Dywyll-Felen
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Carex laevigata – Smooth-stalked Sedge
Species, Flowering plant, Freshwater
Hesgen Lefn, Hesg Llyfn, Hesgen Ylfinog Lefn
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Carex lasiocarpa – Slender Sedge
Species, Flowering plant, Freshwater
Hesgen Fain, Hesg Main
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Carex leporina – Oval Sedge
Species, Flowering plant, Freshwater
Hesgen Hirgylchaidd, Hesgen Hirgron, Hesg Hirgrwn, Hesgen Hirgrwn
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Carex limosa – Bog-sedge
Species, Flowering plant, Freshwater
Mud Sedge, Hesgen Llaid, Hesgen Eurwerdd
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Carex magellanica – Tall Bog-sedge
Species, Flowering plant, Freshwater
Bog Sedge, Hesgen Eurwerdd Lefn
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Carex nigra – Common Sedge
Species, Flowering plant, Freshwater
Hesgen Gyffredin, Swp-Hesgen y Fawnog, Hesg Cyffredin
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Carex otrubae – False Fox-sedge
Species, Flowering plant, Freshwater
Hesgen Paladr Triochrog, Hesgen Dywysennog Goesadeiniog, Hesg Tywysennog Coesadeiniog, Hesgen Dywysennog
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Carex panicea – Carnation Sedge
Species, Flowering plant, Freshwater
Hesgen Lwydlas, Hesg Llwydlas, Hesgen Benigen-Ddail
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Carex paniculata – Greater Tussock-sedge
Species, Flowering plant, Freshwater
Panicled Sedge, Tussock Sedge, Hesgen Rafunog Fawr, Hesgen Rafunog Fwyaf
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Carex pauciflora – Few-flowered Sedge
Species, Flowering plant, Freshwater
Hesgen Brinflodeuog, Hesgen Brin-Flodeuog
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Carex pendula – Pendulous Sedge
Species, Flowering plant, Freshwater
Pendulus Sedge, Hesgen Ddibynnaidd Fwyaf, Hesgen Bendrom, Hesg Pendrwm, Hesgen Bendrymus
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Carex pseudocyperus – Cyperus Sedge
Species, Flowering plant, Freshwater
Hop Sedge, Hesgen Gynffonnog, Hesgen Hopysaidd
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Carex pulicaris – Flea Sedge
Species, Flowering plant, Freshwater
Hesg y Chwain, Hesgen y Chwain, Chwein-Hesgen