silverleaf poverty-weed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Asterales
- family: Asteraceae
- genus: Ambrosia
- species: Ambrosia tomentosa
Arvada- Denver
- Edgewater
- Fort Collins
- Ken Caryl
- Wheat Ridge
Colorado- Minden
Nebraska
United States