Zannichellia brachystemon 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 brachystemon J.Gay ex Reut. Zannichellia brachystemon J.Gay