Related Clues:

• Knots
• Contorts
• Twists
• Protruding tree knots
• Twists out of shape
• Bumps on a log
• ___ Barkley ('Crazy' band)
• Tree growths
• Lumber features
• Bumps on trunks
• Trunk bulges
• Knots up
• Tree bumps
• Tree burls
• Twists into a knot