Scientific name: Eupatorium perfoliatum

The paired leaves, perforated by the stem, originally gave this native perennial its name. It seemed to suggest that this plant would help to set bones and was wrapped around the affected area to promote healing. Others say that it was used to treat fever that made the bones ache.

It is commonly found, as mammals find the taste of the plant to be bitter.

Boneset, Eupatorium perfoliatum


Tiny, white flowers are arranged in fuzzy clusters top the 3-6 foot stems of this perennial.


Found in moist, rich woods and in rocky areas.

Ecosystem Connections

It is pollinated by butterflies, bees, moths and flies. Since it blooms late in the season, it is critical for insects that mature at that time.

Human Connections

In addition to the use which gave this plant its common name, it was also used in tonics and teas to treat a variety of maladies from sore throats to constipation.

More on Flowers and Grasses in Lewisboro