LOL I have some crafty little squirrel "planting buddies" that like to rearrange my garden and play games with me.
no telling... but there are several planted in an almost zigzag row... seems unlikely even they could do that hahahaha
I would say Ruellia brittoniana/Ruellia tweediana Mexican Petunia/ wild petunia. I have seen it pop up 30 feet from the original planting...and the seed pods have a tendency to scatter seeds when they open.
I've grown them before in Benbrook, but I honestly cannot recall any being there.
I guess I could have sprinkled a few seeds there and didn't remember.
if so, they should be blooming soon. i'll be sure to post a pic ;-)
we're gonna call it Ruellia and call it solved.
thanks guys for the speedy response!