"water hemlock." YourDictionary, n.d. Web. 16 January 2019. <https://www.yourdictionary.com/water-hemlock>.
water hemlock. (n.d.). Retrieved January 16th, 2019, from https://www.yourdictionary.com/water-hemlock
Any of several poisonous perennial herbs of the genus Cicuta of the parsley family, especially C. maculata, of marshy areas in eastern and central North America, having compound umbels of small white flowers and bipinnately compound leaves.