Cicuta maculata L.
Engl.: spotted water hemlock, American cowbane, American water-hemlock, beaver poison, common water hemlock, musquash root, poison parsnip, spotted cowbane, spotted parsley, water hemlock, wild parsnip.
Bot. syn.: Cicuta occidentalis Greene.

Cicuta maculata Lam., Apiaceae: See Conium maculatum L.