1. Perennial bushy herb of central and southern United States having white flowers with green centres and often purple crest; similar to Seneca snakeroot
   "Senega grows abundantly in the prairie regions";
   - Polygala alba
    
2. Dried root of two plants of the genus Polygala containing an irritating saponin
   "Herbalists used senega root in traditional cough remedies"

Derived forms: senegas

Type of: milkwort, root

Part of: Polygala senega, Seneca snakeroot, senega root, senega snakeroot, Seneka snakeroot, senga root

Encyclopedia: Senega