Slender toothwort
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Brassicales
- family: Brassicaceae
- genus: Cardamine
- species: Cardamine angustata
Grove Hill
Vernon
Alabama
Brookmont
Cabin John
Ellicott City
Maryland
Fairfax
Great Falls
Manassas
Virginia
Washington, D. C.
Washington, D.C.
United States