Lilium philadelphicum f. flaviflorum E.N.H.Williams Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Liliales family Liliaceae genus Lilium species Lilium philadelphicum Name Homonyms Lilium philadelphicum f. flaviflorum E.F.Williams Lilium philadelphicum f. flaviflorum E.N.H.Williams