Silphium perfoliatum L.
Common Name: CUP PLANT
Coefficient of Conservatism: 10
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt P-Forb
Status: T

River banks and sedgey or prairie-like openings in floodplain forests; sedge meadows and marshes.

The plant is popular in cultivation and plants of fields, an abandoned orchard, railroad embankments, and such places are probably not native there. The species is native mostly south and west of Michigan, occurring only in southernmost Michigan, though well known along the Galien, Huron, and Raisin Rivers, as well as wet prairies, meadows, and marshy areas in SW Michigan.


Berrien County
Ingham County
Kalamazoo County
Lenawee County
Monroe County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. September 24, 2022.