Irish St. John's-wort
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Malpighiales
- family: Hypericaceae
- genus: Hypericum
- species: Hypericum canadense
Gary
Hobart
New Chicago
IndianaFairfax
VirginiaWashington, D. C.
Washington, D.C.
United States