Dichanthelium commutatum (Schult.) Gould
Common Name: PANIC GRASS
Synonym: Panicum commutatum
Coefficient of Conservatism: 9
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt P-Grass

Panicum commutatum of Michigan Flora.

Sandy open or somewhat forested ground, apparently not common; all recent records are from SW Michigan 

Our few collections are almost all the somewhat more northern subsp. ashei  (G. Pearson ex Ashe) Freckmann & Lelong, which differs in having narrower leaves mostly 715 mm wide and 615 times as long as wide. A single collection, by W. S. Martinus in 2016, from Berrien Co., is the typical subsp. commutatum with the widest leaf blades 13−23 mm wide, and only 4−6 times as long as wide.



Allegan County
Berrien County
Ingham County
Kalamazoo County
Kent County
Muskegon County
Ottawa County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 18, 2018. https://www.michiganflora.net/species.aspx?id=2071.