~ Editing this original post to show identification:
Plant in photo's # 1 and #2 is Golden Rain Tree (Koelreuteria elegans)
Plant in photo # 3 is probably Stinging Nettle (Urtica dioica)


I know that I Should know what this is ... I Know that I've seen it before and at some point Knew the name, but for the life of me I can't remember what it is. I've gone through all of my photo's and can't find it so it was probably in the thousands I lost when my laptop crashed a couple of years ago. Anyhow, this stuff is sprouting up in flower beds, in the middle of Indian Hawthorne shrubs, in the middle of Boxwood shrubs, in the middle of Azalea's ... and I think I even saw it sprouting out of a Palm Tree in the neighborhood! There are so many invasive's here in Florida and I think this is one of them. It's not Ailanthus, not Campsis. I thought it might be Tecoma capensis (Cape Honeysuckle) which was growing wild at my old house but somehow it doesn't look right for that either ... what the heck is it?

Geesh, I just figured it out ... Finally! This has been driving me crazy for weeks and it finally hit me ... it's Koelreuteria elegans (Golden Rain Tree)!!

Your first two do look like Koelreuteria elegans Lin.

The last photo looks like a type of nettle, note the spines on the stem and leaves.

Thanks Janet! I thought they were all the same plant but there are so many weeds growing around here and that last one could very well be nettle. I threw all of them out after taking the pictures but I'm certain there are many more and I will take a closer look when I'm weeding again next week.