Cenchrus longispinus (Hack.) Fernald
Coefficient of Conservatism: 0
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt A-Grass

Cenchrus longispinus ex W. H. Wagner slide collection

Roadsides, railroads, fields, and disturbed places generally; an obnoxious weed, especially frequent in dry sandy places but mercifully not yet common on beaches.

A most unpleasant species to humans (especially if barefoot where Cenchrus grows) and animals (the readily deciduous burs rendering an otherwise good forage grass unpalatable when mature). Our plants are likely largely adventive, although presumably originally native in the southwest part of the state, where known since the First Survey in 1838.


Allegan County
Antrim County
Barry County
Bay County
Berrien County
Branch County
Calhoun County
Charlevoix County
Cheboygan County
Clare County
Clinton County
Crawford County
Delta County
Gratiot County
Hillsdale County
Ingham County
Iosco County
Jackson County
Kalamazoo County
Kent County
Lake County
Leelanau County
Lenawee County
Livingston County
Macomb County
Mason County
Mecosta County
Menominee County
Midland County
Monroe County
Muskegon County
Newaygo County
Oakland County
Oceana County
Ogemaw County
Oscoda County
Ottawa County
Saginaw County
Shiawassee County
St. Clair County
St. Joseph County
Tuscola County
Van Buren County
Washtenaw County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. June 25, 2022. https://michiganflora.net/species.aspx?id=2049.