A tall composite plant of the genus Eupatorium (E. purpureum), with purplish flowers, and whorled leaves.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). joe-pye weed. Retrieved September 30, 2026, from http://smartdefine.org/joe-pye_weed/definitions/2024634 |
| Chicago | Webster's. 2011. "joe-pye weed" http://smartdefine.org/joe-pye_weed/definitions/2024634 (accessed September 30, 2026). |
| Harvard | Webster's 2011, joe-pye weed, Smart Define, viewed 30 September, 2026, <http://smartdefine.org/joe-pye_weed/definitions/2024634>. |
| MLA | Webster's. "joe-pye weed" 27 May 2011. Web. 30 September 2026. <http://smartdefine.org/joe-pye_weed/definitions/2024634> |