Sporobolus gracillimus (Thurber ex S. Watson) Vasey

Sporobolus gracillimus (Thurber ex S. Watson) Vasey is a synonym sensu FNA Ed. Comm., 2003b of:

Muhlenbergia filiformis (Thurber ex S. Watson) Rydberg, an accepted species name sensu FNA Ed. Comm., 2003b.