Clitoria mariana /Pea Family
The lovely blue flowers on this vine are very large, they caught my eye as we drove down the road to Clark Center Park in Oak Ridge. I'm lucky to have a very patient husband who will stop when I see a new flower so I can get a photo! :) I read on another wildflower site that this flower is called "Atlantic Pigeonwings" in some areas of the country, common names can be very interesting!
Where seen: Oak Ridge, Great Smoky Mountains NP