Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.

Sclerochloa dura (L.) P. Beauv.
Coefficient of Conservatism: *
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Ad A-Grass

Dry, bare soil with compacted surfaces, such as racetracks and gravel paths in fairgrounds.

A small annual grass introduced from Europe and first collected in 1992 by Ken Dritz in Berrien Co. (Cusick et al. 2002). Spikelets are usually ± sessile and single at the nodes, but robust plants may have slightly branched inflorescences. Sclerochloa somewhat resembles Poa annua, with which it often occurs, but can be easily distinguished by its sessile or nearly sessile spikelets and truncate to rounded, strongly 3–7-nerved glumes. Poa annua has pediceled spikelets with acute, faintly 3-nerved glumes.


Allegan County
Berrien County
Branch County
Calhoun County
Cass County
Clinton County
Eaton County
Gratiot County
Hillsdale County
Ingham County
Ionia County
Isabella County
Jackson County
Kalamazoo County
Lenawee County
Montcalm County
Newaygo County
Oakland County
Osceola County
Ottawa County
Saginaw County
Shiawassee 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. January 28, 2023.