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

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• clocking
• clockmaker
• clocks
• clocksmith
• clockwise
• clockwise rotation
• clockwork
• clockwork universe
• clod
• cloddish
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• clofibrate
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