1. Widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity
   "Farmers worked to eliminate Senecio jacobaea from their pastures to protect their livestock";
   - ragwort, tansy ragwort, benweed

Type of: weed

Part of: genus Senecio, Senecio

Encyclopedia: Senecio jacobaea