Sempervivum tectorum var. clusianum Grande Dataset Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Saxifragales family Crassulaceae genus Sempervivum species Sempervivum tectorum Name Homonyms Sempervivum tectorum var. clusianum Grande Sempervivum tectorum subsp. clusianum Grande