Ageratina aromatica (L.) Spach

Ageratina aromatica was first described as Eupatorium aromaticum by Linnaeus in 1753. It was renamed to its current epithet by Edouard Spach in Histoire Naturelle des vegetaux in 1841.

Ageratina aromatica is a perennial herb with highly clustered heads of small white flowers found mostly in the eastern United States.