Sawatch knotweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Caryophyllales
- family: Polygonaceae
- genus: Polygonum
- species: Polygonum sawatchense
Sunnyside-Tahoe City
California- Bernalillo
New Mexico- Fairview
Utah
United States