trewynyn swp-flodeuog

== Welsh == === Noun === trewynyn swp-flodeuog m alternative form of trewyn swp-flodeuog (“tufted loosestrife”) === Mutation === === References === Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur‎[1], retrieved 1 February 2025.