1. Tall biennial water hemlock of northeastern North America having purple-spotted stems and clusters of extremely poisonous tuberous roots resembling small sweet potatoes
   "Farmers worked to eradicate spotted cowbane from their pastures";
   - spotted hemlock, spotted water hemlock

Derived forms: spotted cowbanes

Type of: poisonous plant

Part of: Cicuta, genus Cicuta

Encyclopedia: Spotted cowbane