Coefficient of Conservatism:
Coefficient of Wetness:
SMITH'S WHEAT GRASS
B. S. Walters
Agropyron smithii of Michigan Flora.
Adventive in dry soils along railroads, roadsides, on shores, etc.; closely resembling Elymus repens, but much less common, though collected as early as 1895 in Keweenaw Co. Native west of Michigan.
The glume differences often emphasized between Pascopyrum and the common Elymus repens are rather subtle and difficult to describe. In P. smithii, the glumes tend to start tapering from below the middle to a narrow or awned tip; in E. repens, they taper more abruptly from about or above the middle. Plants with slightly pubescent lemmas rarely occur. A few plants have broader and flatter leaf blades than usual (though still rather deeply grooved), possibly as a result of hybridization with E. repens.