Agropyron dasystachyum var. sericeum (Hitchcock) B. Boivin

Agropyron dasystachyum var. sericeum (Hitchcock) B. Boivin is a synonym sensu Soreng et al., 2000+ of:

Elymus macrourus (Turczaninow) Tzvelev, an accepted species name sensu FNA Ed. Comm., 2007.