Agropyron spicatum (Pursh) Rydberg Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Pseudoroegneria species Pseudoroegneria spicata Name Homonyms Agropyron spicatum (Pursh) Scribn. & J.G.Sm. Agropyron spicatum (Pursh) Rydberg