Sempervivum ×oligotrichum Baker, 1879 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Saxifragales family Crassulaceae genus Sempervivum species Sempervivum barbulatum Name Homonyms Sempervivum oligotrichum Dalla Torre Sempervivum ×oligotrichum Baker, 1879