Elymus giganteus f. crassinervius Karav. & Kir. Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Leymus species Leymus racemosus Name Homonyms Elymus giganteus var. crassinervius Kar. & Kir. Elymus giganteus f. crassinervius Karav. & Kir.