Sium graecum Guss. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Apiales family Apiaceae genus Bonannia species Bonannia graeca Name Homonyms Sium graecum Guss. ex Spreng. Sium graecum L. Sium graecum Guss. Sium graecum Lour.