llygad y gŵr drwg

== Welsh == === Etymology === Literally, “the devil's eye”. === Noun === llygad y gŵr drwg f dandelion (Taraxacum officinale) ==== Synonyms ==== dant y llew ==== Mutation ==== === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “llygad y gŵr drwg”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies