1. Eupatorium adenophorum and Eupatorium adenophorum have different leaves: Eupatorium adenophorum leaves are oval or lanceolate with serrated edges; Eupatorium adenophorum has slender leaves with obvious folds.

2, Perrin's color Buzelin is richer and more diverse, including white, pink and purple; The flowers of Eupatorium adenophorum are mostly purple or lavender.

3. There are differences in medicinal value between them. Perrin's main function is to benefit waterways and kill viruses, which makes people feel ominous. Eupatorium adenophorum is mainly used for clearing away heat and toxic materials, reducing swelling and relieving pain.