Potamogeton gramineus f. maximus Morong Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Potamogetonaceae genus Potamogeton species Potamogeton gramineus Name Homonyms Potamogeton gramineus var. maximus Morong Potamogeton gramineus f. maximus Morong ex Bennett Potamogeton gramineus f. maximus (Morong) House Potamogeton gramineus var. maximus Morong ex A.Benn. Potamogeton gramineus f. maximus Morong