Beardless bluebunch wheatgrass  

Pseudoroegneria spicata ssp. inermis

Formerly Agropyron inerme. Cool season, long-lived, drought tolerant, perennial bunchgrass adapted to a wide variety of sites but intolerant of poor drainage, high water tables and spring flooding. An awnless-type Bluebunch wheatgrass (see below: Bluebunch wheatgrass, P. spicata ssp. spicata) which starts growth in early spring, has a relatively short life cycle but renews growth in early fall. Good palatability to livestock and wildlife.