Species having 'japonica' as epithet name:
- Anemone hupehensis var. japonica
- Aralia japonica Syn. for: Fatsia japonica
- Aucuba japonica
- Basella japonica Syn. for: Basella alba
- Cryptomeria japonica
- Cupressus japonica Syn. for: Cryptomeria japonica
- Eriobotrya japonica
- Fallopia japonica Syn. for: Reynoutria japonica
- Fatsia japonica
- Lonicera japonica
- Mespilus japonica Syn. for: Eriobotrya japonica
- Reynoutria japonica
- Schubertia japonica Syn. for: Cryptomeria japonica
- Sophora japonica Syn. for: Styphnolobium japonicum