1. Spikelets usually 3–8 per node; lemmas clearly awned.
1. Spikelets usually 2 per node; lemmas acute to acuminate.
2. Culms essentially glabrous at the summit; glumes glabrous or scabrous.
2. Culms finely and densely pubescent at the summit; glumes hairy.
All species found in Leymus
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. June 22, 2017. http://michiganflora.net/genus.aspx?id=Leymus.