Elymus wawawaiensis is a species of grass known by the common name Snake River wheatgrass.

It is native to western North America, where it occurs in the Pacific Northwest.

[3] Elymus wawawaiensis is good for binding soil to prevent erosion.

It can be added to a mix of native seed and sown on dikes and ditches.

[1] This grass is a good graze forage for livestock and wild ungulates.