Crucianella purpurea Wulff Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Gentianales family Rubiaceae genus Galium species Galium aparine Name Homonyms Crucianella purpurea Wulff ex Steud. Crucianella purpurea (L.) Honck. Crucianella purpurea Wulff