Related Clues:

• Prickly plants
• Pipe types
• Sticking points?
• Prickly shrubs
• Pipe choices
• Thorny plants
• Some pipes
• Prickly stems
• Plants with prickly stems
• Prickly bushes
• Are short one in the pubs? That's a thorny matter
• "Rooty" pipes
• Rabbit homes, maybe
• Group that the 24 Across is part of
• Stickers forming a patch