Sempervivum pygmaeum C.Sm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Saxifragales family Crassulaceae genus Aichryson species Aichryson tortuosum Name Homonyms Sempervivum pygmaeum C.Sm. ex Link Sempervivum pygmaeum C.Sm. Sempervivum pygmaeum Jeanb. Sempervivum pygmaeum Jeanb. ex Timb.-Lagr.