Agropyron trachycaulum (Link) Malte ex H.F. Lewis Elymus trachycaulus is a species of wild rye known by the common name slender wheatgrass.

It grows in widely varied habitats from northern Canada to Mexico, but is absent from most of the southeastern United States.

[1] It is variable in appearance, but generally bears a very narrow, linear inflorescence of spikelets appressed against the stem.

[2] Slender wheatgrass (Elymus trachycaulus) grows in a wide variety of dry to mesic habitats.

The species can also tolerate higher salinity in the soil, making it easier to grow in more diverse habitats.