Spotted Joe-Pye Weed (Eupatorium maculatum)
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- Hollow Joe-Pye Weed
Stem of hollow Joe-Pye weed is glaucous (has a white bloom) and is green or purple-tinged, but not spotted. Spotted Joe-Pye weed is somewhat brighter in color, and the top flower cluster is less domed.
- Sweet Joe-Pye Weed
Stems of sweet Joe-Pye weed are green with purple or black at the joints; stems of spotted Joe-Pye weed are spotted throughout with purple, or are completely purple.