Yankeeweed

Eupatorium compositifolium

Yankeeweed is an upright, mainly single-stemmed perennial in the Sunflower family. A warm-season native, it is produced from strong underground rootstock and has stems ranging from 24 to 48 inches tall.
The lower leaves are lobed, compound and located alternately on the stems; the upper leaves are less compound and often entire. Its flowers are white and produced as a long head.
This plant provides poor grazing for wildlife and livestock.