
Poison Ivy, Oak, and Sumac on the Louisiana Northshore: How to Identify, Treat, and Know When to See a Provider
To identify poison ivy, look for clusters of three pointed, often shiny green leaflets on a low plant or climbing vine, which is where the old saying “leaves of three, let it be” comes from. Poison oak also grows in threes with more rounded, lobed leaves, while poison sumac stands

