Glyceria aquatica var. densiflora Waisb. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Poaceae genus Glyceria species Glyceria maxima Name Homonyms Glyceria aquatica subsp. densiflora Waisb. Glyceria aquatica var. densiflora Waisb. Glyceria aquatica var. densiflora Waisb. ex Hegi