Douglas' grasswidow
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Asparagales
- family: Iridaceae
- genus: Olsynium
- species: Olsynium douglasii
- Oak Bay
British Columbia
Canada- Bergshamra
- Djursholm
Stockholm- Göteborg
Västra Götaland
Sweden- Dallesport
- Goldendale
- Mabton
- Pullman
- Spokane
- West Valley
- Yakima
Washington
United States