Poison hemlock is highly toxic. Ingestion can result in death for humans and animals. It has white, airy flowers and hollow, purple-spotted stems.
The sap of wild parsnip causes skin blisters and burns 24-72 hours after sunlight exposure. It has yellow, airy flowers and singly pinnate leaves. It is a serious threat to grazing livestock.
Look for these tall, imposing plants in unmowed ditches, fence lines, and overgrown areas. When found, remove or destroy them following control recommendations.
Find out more about how to identify and control these plants:
• Wild parsnip: https://extension.illinois.edu/inva…/invasive-wild-parsnip
• Poison hemlock: https://extension.illinois.edu/…/invasive-poison-hemlock
