Villarsia Neck. Dataset GBIF Backbone Taxonomy Rank GENUS Published in Elem. Bot. 2: 110 (1790) Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Nymphaeales family Cabombaceae genus Cabomba Name Homonyms Villarsia Vent. Villarsia J.F.Gmel. Villarsia Neck.