Sempervivum tectorum var. atlanticum Ball Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Saxifragales family Crassulaceae genus Sempervivum species Sempervivum atlanticum Name Homonyms Sempervivum tectorum subsp. atlanticum (Ball ex Hook.fil.) Ball Sempervivum tectorum var. atlanticum Ball ex Hook.fil. Sempervivum tectorum var. atlanticum Ball