rhawn y march

== Welsh == === Etymology === rhawn (“tail”) + march (“horse”). === Noun === rhawn y march m (plural rhoniau'r meirch) horsetail (Equisetales) ==== Synonyms ==== marchrawnen ==== Derived terms ==== rhawn-y-march coediog (“wood horsetail”) === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “rhawn”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies