Coefficient of Conservatism:
Coefficient of Wetness:
Mapped here are plants with the lemmas glabrous on the back and purplish spikelets, and otherwise differing from the common D. spicata as noted in the key. Plants are somewhat variable in the length of the lemmas.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 23, 2019. https://michiganflora.net/species.aspx?id=2062.