Agropyron pauciflorum (Schweinitz) Hitchcock ex Silveus nom. illeg.
Agropyron pauciflorum (Schweinitz) Hitchcock ex Silveus nom. illeg. is a synonym sensu FNA Ed. Comm., 2007 of:
Elymus trachycaulus (Link) Gould ex Shinners subsp. trachycaulus, an accepted subspecies name sensu FNA Ed. Comm., 2007.