Cyperus natans Buch.-Ham. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Cyperus species Cyperus cephalotes Name Homonyms Cyperus natans Buch.-Ham. ex C.B.Clarke Cyperus natans Buch.-Ham.