Andropogon virginicus L.
Common Name: BROOM-SEDGE
Coefficient of Conservatism: 4
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt P-Grass

Andropogon virginicus spikelets B. S. Walters spikelets

Open sandy fields, juniper savannas, and roadsides; occasionally on moister shores. It closely resembles Schizachyrium scoparium and sometimes grows with it, but can be distinguished superficially by the visibly expanded spathe-like sheath largely enclosing the racemes. Old stems color reddish bronze, and are very persistent and conspicuous late into the fall and even until next spring. 

This species has clearly increased its range in recent times. Pre-1950 collections are known only from SW Michigan (Berrien and Cass Cos., north to Muskegon Co.). Reported by the First Survey, but no specimens are known.   

Locations

Allegan County
Berrien County
Calhoun County
Cass County
Emmet County
Kalamazoo County
Kent County
Lenawee County
Livingston County
Mason County
Mecosta County
Midland County
Monroe County
Muskegon County
Newaygo County
Ottawa County
Saginaw 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 10, 2017. http://www.michiganflora.net/species.aspx?id=2007.