Eupatorium perfoliatum (Common Boneset)
|Also known as:|
|Habitat:||sun; moist fields, along shores|
|Bloom season:||July - October|
|Plant height:||2 to 4 feet|
|Wetland Indicator Status:||GP: FACW MW: OBL NCNE: FACW|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
Pick an image for a larger view. See the glossary for icon descriptions.
Flat-topped branching clusters of stalked flowers at the top of the stem and arising from upper leaf axils, a cluster comprised of numerous small clusters of up to 15 disk flowers each. Flowers are about ¼ inch across, dull white, star-shaped with 5 triangular petal-like lobes. In the center is a brown column of stamens; emerging from the center of the colum is a 2-parted style that is white, flattened, long and string-like. The bracts around the base of a flower are in 1 or 2 layers, oblong, hairy and gland-dotted, light green but whitish at the pointed tip.
Leaves and stem:
Opposing leaves join around the stem so it appears the stem grows through one large leaf, occasionally leaves are whorled in 3s. Leaves are wrinkly, 4 to 8 inches long, up to 2 inches wide, tapering to a point at the tip, with small rounded teeth along the edges. Both surfaces are hairy and the underside is gland-dotted. Stems are erect, branched in the upper plant, and densely covered in long, spreading hairs.
Fruit is a dry, black seed with a small tuft of hair to carry it off in the wind.
The leaf attachment makes Common Boneset easy to distinguish from other species with similar flowers.
Please visit our sponsors
Native Plant Nurseries, Restoration and Landscaping Services ↓
- Common Boneset plant
- Common Boneset with Joe-pye weed and Grass-leaved Goldenrod
- garden-grown Common Boneset
- leaves whorled in 3s
Photos by K. Chayka taken at Battle Creek Regional Park, Ramsey County. Photos courtesy Peter M. Dziuk taken in Anoka County and in a private garden in Lino Lakes.
Have you seen this plant in Minnesota, or have any other comments about it?