Poison Ivy Wisconsin. Poison ivy is native to North America and is common in Wisconsin, growing in pastures, roadside ditches, fence rows, wooded forests, beaches and parks. Poison Ivy plants also grow berries, which are just as toxic as the rest of the plant.
In all cases the leaves have three leaflets, commonly, but incorrectly, called leaves. Just like poison ivy, oak, and sumac, you want to remove urushiol from your skin if you have been in contact with it. Width in pixels px Height in pixels px Copied to your clipboard Unable to copy.
It can be spread, however, if the oils remain on the skin, clothes, or shoes.
Poison ivy: History of contact: No previous exposure required.
Prior exposure and sensitization to poison ivy required. An identifying trait of poison ivy is the color of its mature berries. It can vary somewhat in its appearance and growth habits (climbing vine, low-lying ground cover, etc.), but there are three traits that always appear—recognize them and you'll know to avoid.