gwair merllyn

Welsh

Gwair merllyn

Etymology

gwair (“hay”) + merllyn (“body of stagnant water”)

Noun

gwair merllyn m (plural gweiriau merllyn)

quillwort (Isoetes spp.)
Synonym: diosglys
lake quillwort, Merlin's grass (Isoetes lacustris)[1]
Synonym: diosglys merllyn

Derived terms

gwair merllyn bach (“spring quillwort”)
gwair merllyn y tir (“land quillwort”)

References

Cymdeithas Edward Llwyd (2003) Planhigion Blodeuol, Conwydd a Rhedyn [Flowering Plants, Conifers and Ferns] (Cyfres Enwau Creaduriaid a Planhigion; 2)‎ (in Welsh), Llanrwst: Gwasg Carreg Gwalch, →ISBN, page 1‎

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