Definition that contains genus pyracantha
- firethorn any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries
- pyracanth any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries
- pyracantha any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries
- fire thorn any of various thorny shrubs of the genus Pyracantha bearing small white flowers followed by hard red or orange-red berries