I don't know what it is but wanted to let you to know I had an app pop up on my phone called plantsnap. So I downloaded it. It's free and easy to use, I'm proof of that, If I can figure it out it must be easy. I tested a couple pics and got results.
The more I look at it, the more I think it may be a type of willowherb. I have identified 3 types of it in my area. What do y'all think, does it look like something in the onagraceae family?