Parsnip (Pastinaca sativa)

Parsnips, though similar to their cultivated counterparts, can cause skin irritation due to a compound in their sap. To prevent this, wear gloves and long sleeves when handling the plant. This will protect you from potential chemical burns and blisters, especially when exposed to sunlight. If your skin comes into contact with the sap, wash the area thoroughly with soap and water and stay out of the sun until you're sure the sap is fully removed.