masterwort
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Apiales
- family: Apiaceae
- genus: Imperatoria
- species: Imperatoria ostruthium
Saint-Vith
Wallonia
Belgium
Velký Beranov
Vysočina
Czech Republic
Tornio
Pirkanmaa
Finland
Holwick
Lartington
Newbiggin
England
United Kingdom
Jämshög