Joe Pye Weed

This is a large genus of over 40 species consisting of plants with white colored composite flowers mainly native to North America. They are perennial herbs with opposite or whorled leaves and showy clusters of small tubular flowers from which the branched style generally extends. It was named for Mithridates Eupator, King of Pontus

Note: This genus has been recently split into several different genera. Basically, the purple flowering types called Joe-Pye-Weed now belong to a separate genus, Eutrochium.


Eupatorium altissimum Tall Boneset
E. aromaticum Wild Hoarhound
E. coelestinum Mist-flower, Hardy Ageratum,
Blue Boneset
E. hyssopifolium Thoroughwort
E. perfoliaturn Boneset
E. rugosum White Snakeroot
** The following have been moved to a new genera, Eutrochium.
Eutrochium maculatum Joe Pye Weed
Eutrochium purpureum Bluestem Joe Pye Weed

Species Hgt (ft) Flower Color
E. coelestinum 2-3 Blue
E. purpureum 4-7 Purple
E. rugosum 3-5 white

* Guides and Keys are from the book "Herbaceous Perennial Plants A Treatise on their Identification, Culture and Garden Attributes" by Dr Allan M. Armitage of the University of Georgia. Varsity Press, Athens, Georgia. 1989 ISBN 0-942375-00. More on Dr Armitage and his other books.



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