Ageratina aromatica; Asteraceae (aster family)
The Eupatorium-type flowers aren’t quite done yet. A. aromatica’s big brother, Ageratina altissima, dominates the scene – you can find them by the dozens along the Billy Goat trails – but tucked in little nooks on sandy soils you might find this small species, too.
As you can see, this is another one of the rayless composites, consisting only of disk flowers. It’s found throughout the eastern US as far north as New York; some sources state that it ranges further into New England, but is rare or endangered there.