Klasifikasi
Kingdom: Plantae
Subkingdom: Tracheobionta
Superdivisi: Spermatophyta
Divisi: Magnoliophyta
Kelas: Equisetopsida
Subkelas: Commelinidae
Ordo: Poales
Spesies: Pseudoroegneria spicata (Pursh) Á.Löve
Sinonim
Agropyron divergens (Steud.) P.Candargy
Agropyron divergens var. inerme Scribn. & J.G.Sm.
Agropyron divergens var. tenuispicum Scribn. & J.G.Sm.
Agropyron inerme (Scribn. & J.G.Sm.) Rydb.
Agropyron spicatum (Pursh) Scribn. & J.G.Sm.
Agropyron spicatum f. inerme (Scribn. & J.G.Sm.) Beetle
Agropyron spicatum var. inerme (Scribn. & J.G.Sm.) A.Heller
Agropyron spicatum var. pubescens Elmer
Agropyron spicatum var. tenuispicum (Scribn. & J.G.Sm.) Rydb.
Agropyron spicatum var. vaseyi (Scribn. & J.G.Sm.) E.E.Nelson
Agropyron vaseyi Scribn. & J.G.Sm.
Elymus spicatus (Pursh) Gould
Elymus spicatus subsp. inermis (Scribn. & J.G.Sm.) Hanelt
Elytrigia spicata (Pursh) D.R.Dewey
Festuca spicata Pursh
Pseudoroegneria spicata subsp. inermis (Scribn. & J.G.Sm.) Á.Löve
Roegneria spicata (Pursh) Beetle
Roegneria spicata f. inermis (Scribn. & J.G.Sm.) Beetle
Schedonorus spicatus (Pursh) Roem. & Schult.
Triticum divergens Steud.
Zeia spicata (Pursh) Lunell