Maryland milkwort
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Fabales
- family: Polygalaceae
- genus: Polygala
- species: Polygala mariana
Berry- Dauphin Island
- Vernon
Alabama- Adelphi
- Baden
- Beltsville
- Berwyn Heights
- Bladensburg
- Brentwood
- College Park
- Cottage City
- East Riverdale
- Easton
- Edmonston
- Federalsburg
- Four Corners
- Goddard
- Hillandale
- Hyattsville
- Kemp Mill
- Lanham
- Mount Rainier
- New Carrollton
- Odenton
- Princess Anne
- Riverdale Park
- Seabrook
- University Park
- Upper Marlboro
- White Oak
Maryland- Arlington
- Belle Haven
- Fairfax
- Huntington
Virginia- Washington, D. C.
Washington, D.C.
United States