mountain tansymustard
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Brassicales
- family: Brassicaceae
- genus: Descurainia
- species: Descurainia incisa
Banff- Fort Saskatchewan
Alberta- Golden
- Grand Forks
British Columbia
Canada
Big Bear Lake- Tahoma
California- Berkley
Colorado- Parma
Idaho- Indian Hills
Nevada
United States