1. Spikelets usually 3–8 per node; lemmas hairy on the lower portion and glabrous near apex.
1. Spikelets usually 2 per node; lemmas densely hairy throughout.
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. January 23, 2020. https://michiganflora.net/genus.aspx?id=Leymus.