Stipa occidentalis var. nelsonii (Scribner) C.L. Hitchcock

Stipa occidentalis var. nelsonii (Scribner) C.L. 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.