alyswm y mynydd

== Welsh == === Etymology === Calque of English mountain alyssum. === Noun === alyswm y mynydd m mountain alyssum, mountain alison (Alyssum montanum) Synonym: cydllin y mynydd === Further reading === Griffiths, Bruce; Glyn Jones, Dafydd (1995), “alison”, in Geiriadur yr Academi: The Welsh Academy English–Welsh Dictionary‎[1], Cardiff: University of Wales Press, →ISBN Griffiths, Bruce; Glyn Jones, Dafydd (1995), “alyssum”, in Geiriadur yr Academi: The Welsh Academy English–Welsh Dictionary‎[2], Cardiff: University of Wales Press, →ISBN