old-field three-awn
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Poaceae
- genus: Aristida
- species: Aristida oligantha
Eutaw
Alabama- Shingle Springs
California- Branford
- Branford Center
- Hartford
- New Haven
- Poquonock Bridge
Connecticut- Coal City
Illinois- Beltsville
- Berwyn Heights
- Brentwood
- Capitol Heights
- Chesapeake Beach
- Chevy Chase
- Chevy Chase Village
- Chillum
- College Park
- Colmar Manor
- Cottage City
- East Riverdale
- Fairmount Heights
- Friendship Village
- Goddard
- Greenbelt
- Mount Rainier
- North Beach
- Riverdale Park
- Seat Pleasant
- Silver Spring
- Somerset
- Takoma Park
Maryland- Minden
Nebraska- Fruitdale
- Grants Pass
- White City
Oregon- Washington, D. C.
Washington, D.C.
United States