Trisetum spicatum subsp. congdonii (Scribner & Merrill) Hultén

Trisetum spicatum subsp. congdonii (Scribner & Merrill) Hultén is a synonym sensu FNA Ed. Comm., 2007 of:

Koeleria spicata (Linnaeus) Barberá, Quintanar, Soreng & P.M. Peterson, an accepted species name sensu Barberá et al., 2019b.