Joe Pye Weed

Additional Information:

Scientific Name: Eupatorium purpureum
Common Name: Joe pye weed
Family: Asteraceae
Locale: St. Francis NF-Ozark’s
Specific Region: Low gap, Missouri
Description: Differences of the most commonly confused Eupatorium’s. The inflorescence of Eupatorium purpureum is domed-shaped, while E. maculatum is more flat-topped. E. fistulosum is also domed, but the stem is more purplish throughout, while E. purpureum the purple is mainly at the nodes. Also, the stem of E. fistulosum has a large central cavity, while in E. purpureum it is only slightly hollow . See other Eupatorium photos for more characteristics.
Date: July 15,2007
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