Tribulus bicornutus Fisch. & C.A.Mey. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Zygophyllales family Zygophyllaceae genus Tribulus species Tribulus terrestris Name Homonyms Tribulus bicornutus Fisch. & C.A.Mey.