Stipa columbiana var. nelsonii (Scribner) Hitchcock

Stipa columbiana var. nelsonii (Scribner) Hitchcock is a synonym sensu FNA Ed. Comm., 2007 of:

Eriocoma nelsonii (Scribner) Romaschenko subsp. nelsonii, an accepted subspecies name sensu Peterson et al., 2019a.