Helictotrichon tibeticum var. laxiflorum Keng Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Helictotrichon species Helictotrichon tibeticum Name Homonyms Helictotrichon tibeticum var. laxiflorum Keng ex Z.L.Wu Helictotrichon tibeticum var. laxiflorum Keng