Agropyron trachycaulum (Link) Malte var. trachycaulum
Agropyron trachycaulum (Link) Malte var. trachycaulum is a synonym sensu TROPICOS of:
Elymus trachycaulus (Link) Gould ex Shinners subsp. trachycaulus, an accepted subspecies name sensu FNA Ed. Comm., 2007.