Don’t put your thumb on this green. Many gardeners might not be aware of the lethal plant thought to be the most toxic in the world called the Gympie-Gympie. The ghoulish greenery sports tiny ...

Toxic and poisonous plants grow in Michigan, including giant hogweed, poison ivy, poison oak, wild parsnip, poison sumac and poison hemlock. Contact with the plants can cause skin irritation, blisters ...

Poison ivy has three leaves, and the middle leaf has a longer stem. Touching poison ivy causes an allergic reaction due to urushiol oil. Poison oak and poison sumac are related to poison ivy and also ...