Potamogeton tretocarpus Maxim. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Potamogetonaceae genus Potamogeton species Potamogeton wrightii Name Homonyms Potamogeton tretocarpus Maxim. ex A.Benn. Potamogeton tretocarpus Maxim.