Allium atroviolaceum Hornem. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Asparagales family Amaryllidaceae genus Allium species Allium sphaerocephalon Name Homonyms Allium atroviolaceum Boiss. Allium atroviolaceum Hornem. ex Steud. Allium atroviolaceum Hornem.