1. Culms pilose at least below the lower nodes, often essentially throughout; lemma awn 1-2 mm long, curved into a hook at maturity and not extending beyond the glumes.
1. Culms glabrous except for the bearded nodes; lemma awn straight or geniculate, 3-5 mm long, clearly exserted.
Citation:
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 18, 2025
https://mifloradev.lsa.umich.edu/flora-demo/#/genus/Holcus