Sempervivum flahaultii Gaultier Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Saxifragales family Crassulaceae genus Sempervivum species Sempervivum arachnoideum Name Homonyms Sempervivum flahaultii Gaultier Sempervivum ×flahaultii Gaut.