Contact herbicides are the safest way to control poison hemlock, as all parts of the plant are toxic. Wild parsnip often grows near poison hemlock, but unlike hemlock, it causes skin reactions.

Wild parsnip, a poisonous weed, is common in roadside ditches throughout Winona County. The oils in the plant can cause severe burns if they come in contact with skin.

Wild parsnip (and its cousin, cow parsnip) form dense clusters along roadsides and property, crowding out native plants critical to maintaining stable soil and providing wildlife habitat.

The plant is wild parsnip -- native to Eurasia and related to the carrot family -- and it has a sap that contains chemicals that can cause rashes, blisters, burning and itching.

For wild parsnip, it is important to wear protective clothing, including chemical-resistant gloves, as contact with the plant can be harmful to the skin.

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 ...

Wild parsnip is an interesting plant that causes phytophotodermatitis. The sap, when on the skin and exposed to the sun, can cause severe blisters and often a redness that can last for several months.