tafod y ddaear llysnafeddog

== Welsh == === Noun === tafod y ddaear llysnafeddog m (plural tafodau'r ddaear llysnafeddog) slimy earthtongue (Geoglossum peckianum) === Mutation === === Further reading === Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur‎[1], retrieved 16 August 2025.