Spearleaf agoseris
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Asterales
- family: Asteraceae
- genus: Agoseris
- species: Agoseris retrorsa
Acton- Greenville
- Sacramento
- Soda Bay
California- Ashland
- Fruitdale
- Grants Pass
Oregon- Cle Elum
- Leavenworth
Washington
United States