Alopecurus geniculatus var. tuberosus Asch. & Graebn. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Alopecurus species Alopecurus geniculatus Name Homonyms Alopecurus geniculatus var. tuberosus Asch. & Graebn.