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

Type of: ambrosia, bitterweed, ragweed

• pilchard
• pilcrow
• pile
• pile driver
• pile dwelling
• Pilea
• Pilea involucrata
• Pilea microphylla
• Pilea pumilla
• pileated
• piles
• pileup
• pileus
• pilewort
• pilfer
• pilferage
• pilferer
• pilgarlic
• pilgrim
• Pilgrim Father
• pilgrim's journey
• Pilgrim's Progress
• pilgrimage
• piling
• Pilipino