Zannichellia cylindrocarpa Walp. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Alismatales family Potamogetonaceae genus Althenia species Althenia cylindrocarpa Name Homonyms Zannichellia cylindrocarpa Körn. Zannichellia cylindrocarpa Körn. ex Müll.Berol. Zannichellia cylindrocarpa Walp. Zannichellia cylindrocarpa Körn. ex Müll.Stuttg.