small-head rush
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Magnoliales
- family: Juncaceae
- genus: Juncus
- species: Juncus brachycephalus
Niagara Falls- Walpole Island
- Wasaga Beach
Ontario- Saint-Augustin-de-Desmaures
Quebec
Canada
Kent
Connecticut- Gary
Indiana- Kansas City
Missouri- Buffalo
- Niagara Falls
New York- Milwaukee
Wisconsin
United States