Zannichellia major Boenn. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Potamogetonaceae genus Zannichellia species Zannichellia palustris Name Homonyms Zannichellia major Boenn. ex Rchb. Zannichellia major Boenn.