Large toothwort
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Brassicales
- family: Brassicaceae
- genus: Cardamine
- species: Cardamine maxima
Cornwall- Hawkesbury
Ontario- Longueuil
- Oka
- Trois-Rivières
Quebec
Canada
Litchfield- Orange
- Plainville
Connecticut
United States