I will look through the leaf pics from a month or two ago... And see if I can't find some to aid in identification... I'm actually surprised this isn't common.
The leaves look like mugwort... But the plant is similar in height and smell to e. serotinum...
Horntoad said:I can't find any live plant images, but I found this herbarium specimen that looks close.
Eupatorium ×pinnatifidum http://www.floraofalabama.org/...
Thanks... That certainly looks a likely candidate!