Sorghum halepense (L.) Pers.
Common Name: JOHNSON GRASS
Coefficient of Conservatism: *
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Ad P-Grass

Sorghum halepense A. A. Reznicek

 Native to the Old World, especially the Mediterranean area and, at least in the past, grown for forage. Now a weed of roadsides, fields, shores, and disturbed ground. Locally a troublesome weed in agricultural fields in the southwest part of the Lower Peninsula; first collected in Berrien Co. in 1917. An 1891 collection from the "Experiment Station, Michigan Agricultural College" (MICH) is presumably from cultivation.

Perennial from extensive rhizomes, and often a noxious weed very difficult to eradicate, especially where more abundant southward.

Locations

Allegan County
Berrien County
Cass County
Eaton County
Hillsdale County
Ingham County
Kalamazoo County
Kent County
Lenawee County
Van Buren County
Wayne County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. May 29, 2020. https://michiganflora.net/species.aspx?id=2224.