Cirsium altissimum (L.) Spreng.
Common Name: TALL THISTLE
Coefficient of Conservatism: 5
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Cirsium altissimum A. A. Reznicek

Shaded river banks, floodplain and stream margin forests and thickets, oak-hickory and mixed hardwood forests and savannas. See comments under C. discolor. A well named plant, impressively tall, to several meters, when robust.

Locations

Barry County
Berrien County
Hillsdale County
Ingham County
Ionia County
Jackson County
Kalamazoo County
Lenawee County
Livingston County
Macomb County
Monroe County
Oakland County
St. Joseph County
Washtenaw County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 18, 2017. http://www.michiganflora.net/species.aspx?id=283.