1. Coarse perennial ragweed with creeping roots of dry barren lands of southwestern United States and Mexico
   - perennial ragweed, Ambrosia psilostachya

Type of: ambrosia, bitterweed, ragweed

• bolographic
• bolometer
• bolometric
• boloney
• Bolshevik
• bolshevise
• Bolshevism
• Bolshevist
• Bolshevistic
• bolshevize
• bolshie
• bolshy
• bolster
• bolster up
• bolt
• bolt cutter
• bolt down
• bolt of lightning
• bolt out
• bolt-hole
• bolter
• bolti
• Boltonia
• Boltzmann
• Boltzmann distribution law