×Billya Bethmann ex M.H.J.van der Meer Dataset GBIF Backbone Taxonomy Rank GENUS Published in Cact. Phantast. 2019(7)-2: 2 (2019) Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Bromeliaceae genus Puybergia Name Homonyms Billya Cass. ×Billya Bethmann ex M.H.J.van der Meer