Thank you Eric for your response!! I did manage to plant the one on the left in the ground after I posted this. I have yet to plant the one on the right but I plan to do that in the next few days. Hopefully by the end of the year I will be back with more plant to share for a more accurate id. This is my first passiflora to ever grow. I found my first passion flower one day while tromping through a field. I was hooked on passion flower from that day. I found the vine just laying on the ground with these wonderful huge blooms. I couldn't resist picking a bloom and smelling it. I remember the entire drive home I had this large baseball small softball sized bloom held to my face because the smell was so wonderful!! I came home to do all the research possible to identify what this plant was. Well after finding out it took me I say a year and a half to find seeds. So when I say I am very excited even for just these 2 seedlings, that might be an understatement. This has been a long wait and I am thrilled to even think there is a possibility this is an incarnata!!

I know this is an old thread, but I have the same seedlings popping up all over my (new to me) yard and I'd love to know what yours ended up being. Please reply if you're still on here! I thought CA poppy, but like you, they don't quite match. Someone else suggested marigold on my gardening forum, but i don't see that, either.

My neighbor has a pin oak but I don't think it's mature enough to produce acorns, I've never seen acorns anywhere in the neighborhood. I have what is possibly quercus nigra growing up through another tree on my property. Sadly I live in a typical NC development which is mostly crepe myrtle, pines, and maples. I would love to keep these guys going, although I gather that if they are water oak they're not desirable. One of them is in the middle of the "lawn" (bermuda). If I fence it off will it have a fighting chance or will the bermuda eventually choke it out?

Compare with L. japonicum.