Potamogeton mucronatus var. major R.Ruthe Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Potamogetonaceae genus Potamogeton species Potamogeton friesii Name Homonyms Potamogeton mucronatus var. major R.Ruthe ex G.Fisch. Potamogeton mucronatus var. major R.Ruthe