slender clarkia
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Myrtales
- family: Onagraceae
- genus: Clarkia
- species: Clarkia gracilis
Durham- Nice
- Redding
- Sacramento
- Ukiah
California- Rainier
- White Salmon
Washington
United States