northwestern Indian paintbrush
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Lamiales
- family: Orobanchaceae
- genus: Castilleja
- species: Castilleja angustifolia
Big Bear Lake
California- Caldwell
- Glenns Ferry
- Pocatello
- Salmon
Idaho- Dallesport
Washington- Worland
Wyoming
United States