Elymus arenarius.

Botanical name: 

Elymus arenarius Linn. Gramineae. Lyme Grass. Rancheria Grass.

Europe and western North America. The seed of this grass is threshed out and eaten by the Digger Indians. It is indigenous to France and is used as an ornamental plant in gardens.

Sturtevant's Edible Plants of the World, 1919, was edited by U. P. Hedrick.