stout smartweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Caryophyllales
- family: Polygonaceae
- genus: Persicaria
- species: Persicaria robustior
Wolfville
Nova Scotia
CanadaMadison
AlabamaDanbury
Milford
Old Saybrook
Old Saybrook Center
Saybrook Manor
ConnecticutArlington
Belmont
Dedham
Middleborough Center
MassachusettsClifton
New Jersey
United States