The Most Dangerous Plant In Each State

47. Montana – Yellow Jessamine (Gelsemium sempervirens)

Yellow jessamine grows along Montana’s gardens, fences, and roadsides. Its bright yellow trumpet-shaped flowers contain gelsemine, a neurotoxin that can cause dizziness, paralysis, slowed breathing, and death. Even honey made from the nectar can be toxic. The plant climbs structures and trees, making accidental exposure more likely. Its attractive flowers disguise its lethality, especially for children, pets, and unsuspecting foragers. Yellow jessamine demonstrates how ornamental plants can pose hidden threats in both cultivated and wild areas.