The Most Dangerous Plant In Each State

42. Montana – Western Water Hemlock (Cicuta douglasii)

Western water hemlock grows abundantly in Montana’s wetlands, streams, and riverbanks. Small clusters of white flowers disguise its extreme toxicity. The roots contain cicutoxin, which induces violent seizures, respiratory failure, and rapid death. Even minor ingestion can be fatal. Historical cases of accidental poisoning underline its lethality. Its presence near accessible water sources makes it dangerous to children, hikers, and livestock. The plant’s innocuous appearance masks one of the deadliest natural toxins in the region.