Forsythia sieboldii hort. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Lamiales family Oleaceae genus Forsythia species Forsythia sieboldii Name Homonyms Forsythia sieboldii hort. ex Lavallée, 1877 Forsythia sieboldii (Zabel) Dippel Forsythia sieboldii hort.