Boneset

Once the seven images are displayed below, click on the title above to see the same seven images enlarged.
Note: the bottom four images contain a mutant Boneset referred to as Eupatorium perfoliatum, forma truncatum. The first image shows two Pennsylvania Leather-wing beetles on the Bonset flowers.
Chauliognathus pennsylvanicus, Eupatorium perfoliatum
Midland County, August 3, 2001
Mackinac County, August 16, 2006
Eupatorium perfoliatum
Mackinac County, August 16, 2006

The use of the additional plant identification, forma truncatum, for a mutant of Eupatorium (shown in the bottom four images) was suggested by Dr. Robert R. Kowal, Professor of Botany, Emeritus, University of Wisconsin-Madison. Identifying the mutant Eupatorium shown below with forma truncatum is reasonable since these two forms of Eupatorium were seen growing in the same habitat.
Eupatorium perfoliatum and Eupatorium perfoliatum, forma truncatum were growing
in the same habitat (the mutant is shown here between the normal Boneset and the limestone boulder).
Mackinac County, August 16, 2006
Eupatorium perfoliatum and Eupatorium perfoliatum, forma truncatum were growing
in the same habitat (the mutant is shown here between the normal Boneset and the limestone boulder).
Mackinac County, August 16, 2006
The mutant Eupatorium perfoliatum, forma truncatum was growing in the same habitat as
the Boneset in the top two images and both forms were flowering at the same time.
Mackinac County, August 16, 2006
The mutant Eupatorium perfoliatum, forma truncatum was growing in the same habitat as
the Boneset in the top two images and both forms were flowering at the same time.
Mackinac County, August 16, 2006