Zannichellia digyna J.Gay 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 digyna J.Gay ex Bréb. Zannichellia digyna J.Gay