| bog asphodel | (n) either of two herbaceous rushlike bog plants having small yellow flowers and grasslike leaves; north temperate regions |
| american bog asphodel | (n) of the eastern United States: New Jersey to South Carolina, Syn. Narthecium americanum |
| european bog asphodel | (n) of western Europe: Scandinavia to northern Spain and Portugal, Syn. Narthecium ossifragum |