Mariposa rush
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Magnoliales
- family: Juncaceae
- genus: Juncus
- species: Juncus dubius
Mariposa- Monte Sereno
- Palo Alto
- San Diego
- Stanford
California- Hood River
Oregon
United States