Agropyron pauciflorum subsp. majus (Vasey) Melderis
Agropyron pauciflorum subsp. majus (Vasey) Melderis is a synonym sensu TROPICOS of:
Elymus trachycaulus (Link) Gould ex Shinners subsp. trachycaulus, an accepted subspecies name sensu FNA Ed. Comm., 2007.