Thanks ladies, Libster we call them Maypops too. This one is native to our area, harvested seed from a native vine, but I planted the seed 2 years ago, the first year they didn't sprout at all so I thought I wouldn't get any, this year I got a couple of vines. I plan on controlling their invasive nature by using them as forage for my rabbits when they (the vines) get to big. The are in the passiflora family, not all (passiflora) will survive our winters.