Centaurea nigrescens Willd.
Common Name: SHORT-FRINGED KNAPWEED
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad P-Forb

A Eurasian native, occasionally established along roadsides, trails, and fields.

The involucre (when pressed) tends to be almost as long as broad or a little longer, while in C. jacea and C. nigra it tends to be distinctly shorter than broad. First collected in 1929 in Mackinac and Oakland Cos.

Locations

Keweenaw County
Lenawee County
Mackinac County
Menominee County
Oakland County
Schoolcraft County
Washtenaw County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 15, 2017. http://michiganflora.net/species.aspx?id=275.