Triticum rigidum Schrad. Dataset GBIF Backbone Taxonomy Rank SPECIES Published in Fl. Germ.: 392 (1806) Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Thinopyrum species Thinopyrum elongatum Name Homonyms Triticum rigidum Schleich. ex Mert. & W.D.J.Koch Triticum rigidum Schrad. Triticum rigidum Schleich.