Agropyron divergens var. tenue Vasey ex Macoun Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Pseudoroegneria species Pseudoroegneria spicata Name Homonyms Agropyron divergens var. tenue Vasey Agropyron divergens var. tenue Vasey ex Macoun