1. Eastern North American plant having a terminal cluster of small white flowers and medicinal roots
   - Seneca snakeroot, Seneka snakeroot, senega root, senega snakeroot, Polygala senega

Derived forms: senga roots

Type of: milkwort

• probative
• probatory
• probe
• probenecid
• probing
• probiotic
• probiotic bacterium
• probiotic flora
• probiotic microflora
• probity
• problem
• problem solver
• problem solving
• problem-oriented language
• problematic
• problematical
• problematically
• problematise
• problematize
• problemo
• Proboscidea
• Proboscidea arenaria
• Proboscidea fragrans
• Proboscidea louisianica
• proboscidean