Spotted water hemlock, a native North Dakota plant, has been reported in most North Dakota counties.
The plant is highly poisonous to humans and all livestock, especially cows, horses and goats. The plant's toxin, cicutoxin, is most harmful in the spring. The roots are the most toxic, but all parts of the plant can be poisonous.
Spotted water hemlock is a shortlived perennial plant that spreads by s…