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Boneset in fall with seed heads



Eupatorium perfoliatum

Common Name of Genus: Boneset
Family: Asteraceae

Description:  This perennial herb is an erect plant with branching on the top of the stem supporting a head of flowers.
The leaves are pointed, toothed and found opposite one another. They are also are heavily veined and covered in white hairs with at wrinkled texture. Leaves on opposite sides of stem join together at the base and encircle the stem.
Small and white flowers found in large flat clusters. Flower between July and October.

Stem:  Robust, erect and covered in white hairs. At the top branches out and forms flower head.
Branching Pattern:
Height:  2 - 5 feet tall
Conditions/Habitat/Kind of Forest:  Wet meadows, marshes and along pond edges. Does not tolerate dry soil very well
Known Wildlife Interactions: In the winter the fruits are a food source for birds and other mammals. While its extensive root system help to prevent soil erosion.
Range:  Eastern part of North America from Canada down to northern Florida. It spans west to Texas and Nebraska.
Conservation Status-US/ World Wide: Not threatened in either U.S. or globally.
Uses (Human): In the 19th century, it was used in hot teas to help cure arthritis, gout, epilepsy, sore throats and colds.

Redington, Charles B. Plants in Wetlands. Redington Field Guides. 1994. pg 162

Aquatic and Wetland Vascular Plants of the Northern Great Plains.  February 23, 2005.  Northern Prairie Wildlife Research Center.  Accessed:  January 20, 2006. <>

Connecticut Wildflowers.  January 20, 2006.  Connecticut Botanical Society.  Accessed:  January 20, 2006. <>

The Pennsylvania Flora Project.  Botany Department, Morris Arboretum of the University of Pennsylvania.  Accessed:  January 20, 2006. <>

IUCN Red List of Threatened Species <>

This page was created by: A Coiro, Muhlenberg College
Photos by: L. Rosenberg, edited by N. Smith
Last updated 04/24/06