Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Agropyron dasystachyum of Michigan Flora.
Restricted to sandy shores and dunes of the Great Lakes; frequent on Lakes Michigan and Huron, but known from Lake Superior only from two old (1890 & 1895) collections from Keweenaw Co.
A conspicuous blue-green glaucous grass. The lemmas are usually nearly or quite awnless, although some plants from all three of the Great Lakes on which it occurs have prominently awned lemmas. Our plants from the sandy shores of the Great Lakes are a disjunct population constituting the endemic subsp. psammophilus (Gillett & Senn) Á. Löve, which has more villous lemmas, more glaucous foliage and less attenuate glumes than plants from western North America.