Festuca spicata Pursh
Elymus spicatus (Pursh) Gould
Agropyron divergens (Steud.) P.Candargy
Agropyron divergens var. tenue Vasey
Triticum missuricum Spreng.
Agropyron spicatum (Pursh) Scribn. & J.G.Sm.
Triticum divergens Steud.
Agropyron inerme (Scribn. & J.G.Sm.) Rydb.
Pseudoroegneria spicata subsp. inermis (Scribn. & J.G.Sm.) Á.Löve
Agropyron missuricum Farw.
Agropyron spicatum var. pubescens Elmer
Agropyron spicatum subsp. puberulentum Piper
Elymus spicatus subsp. inermis (Scribn. & J.G.Sm.) Hanelt
Agropyron spicatum var. tenuispicum (Scribn. & J.G.Sm.) Rydb.
Elytrigia spicata (Pursh) D.R.Dewey
Agropyron spicatum var. inerme (Scribn. & J.G.Sm.) A.Heller
Agropyron spicatum f. inerme (Scribn. & J.G.Sm.) Beetle
Zeia spicata (Pursh) Lunell
Agropyron vaseyi Scribn. & J.G.Sm.
Agropyron divergens var. inerme Scribn. & J.G.Sm.
Agropyron divergens var. tenuispicum Scribn. & J.G.Sm.
Roegneria spicata f. inermis (Scribn. & J.G.Sm.) Beetle
Roegneria spicata (Pursh) Beetle
Schedonorus spicatus (Pursh) Roem. & Schult.
Agropyron spicatum var. vaseyi (Scribn. & J.G.Sm.) E.E.Nelson