tafod yr oen

Welsh

Etymology

Literally, the lamb's tongue.

Noun

tafod yr oen m (plural tafodau'r oen)

  1. white goosefoot, fat hen (Chenopodium album)
    Synonym: troed-yr-ŵydd gwyn
  2. hoary plantain (Plantago media)
    Synonym: llyriad llwyd
  3. costmary (Tanacetum balsamita syn. Chrysanthemum balsamita)
    Synonyms: tansi Mair, costmair

Further reading

  • Cymdeithas Edward Llwyd (2018), “Y Bywiadur”, in Llên natur[1], retrieved 25 September 2025.
  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “tafod yr oen”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies