I had a very invasive ground covering vine who’s leaves looks just like the invasive cucumber vine but the leaves were MUCH bigger. Also when I pulled it out of the ground the leaves scratched my leg and caused it to itch immediately. This vine was growing over my patio and started to twine around a patio chair and it was hard to get it off. My husband also encountered this vine at the far end of our yard and has had the reaction like it was poison oak although it did not have three leaves or shiny. These leaves had three petals but were attached like the cucumber vines look.? Any idea what this vine is? It was very invasive growing to an area of about 4-5 feet within two weeks? We live in the SE section of PA by the way.