Cyperus annuus Willd. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Fimbristylis species Fimbristylis dichotoma Name Homonyms Cyperus annuus Spreng. & Link Cyperus annuus Willd. ex Kunth Cyperus annuus L. ex B.D.Jacks. Cyperus annuus L. ex C.B.Clarke, 1894 Cyperus annuus Willd. Cyperus annuus L.