Sorghastrum nutans (L.) Nash
Common Name: INDIAN GRASS
Coefficient of Conservatism: 6
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt P-Grass

Sorghastrum nutans A. A. Reznicek

Dry open forests (jack pine, oak, etc.), prairies, and moist shores, even sometimes in marshy places; apparently spreading somewhat in disturbed ground, as along roadsides and railroads.

A tall handsome grass with golden panicle in late summer. In lacking even a rudimentary pediceled spikelet, it resembles Andropogon virginicus, from which it conspicuously differs in the larger sessile (fertile) spikelet (twice as long as in A. virginicus) and long cartilaginous ligule ± continuous with elongate auricles. Mature disintegrating panicles may seem to have spikelets with two sterile hairy pedicels; one is the true sterile pedicel and the other is the very similar internode of the panicle itself, from which the next sessile spikelet and sterile pedicel above have disarticulated.

Locations

Allegan County
Alpena County
Arenac County
    Including Charity Island
Bay County
Benzie County
Berrien County
Branch County
Calhoun County
Cass County
Charlevoix County
Cheboygan County
Crawford County
Delta County
Genesee County
Hillsdale County
Houghton County
Huron County
Ingham County
Iosco County
Jackson County
Kalamazoo County
Kent County
Lake County
Lapeer County
Lenawee County
Livingston County
Mason County
Menominee County
Monroe County
Montmorency County
Muskegon County
Newaygo County
Oakland County
Ogemaw County
Oscoda County
Presque Isle County
St. Clair County
St. Joseph County
Van Buren County
Washtenaw County
Wayne County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 14, 2017. http://www.michiganflora.net/species.aspx?id=2222.