noun
also flu·el·len flüˈelə̇n
( -s )
Etymology: Welsh llysiau Llywelyn, literally, Llewelyn's herbs, probably after Llywelyn ab Iorwerth (Llewelyn the Great) died 1240 or Llywelyn ab Gruffydd died 1282 princes of Wales
1. : either of two speedwells ( Veronica officinalis and V. chamaedrys )
2. : toadflax
3. : cancerwort
4. : mountain parsley