bur ragweed
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Asterales
- family: Asteraceae
- genus: Ambrosia
- species: Ambrosia confertiflora
San José del Cabo
Baja California Sur- Bermejillo
Durango- Monterrey
Nuevo León- San Luis Potosí
San Luis Potosí- Mazatlán
Sinaloa- Guaymas
Sonora
Mexico
Beaumont
California- Fort Hancock
Texas
United States