Sempervivum laggeri Schott, 1853 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 laggeri Schott ex Hallier Sempervivum laggeri Schnittsp. ex Nyman Sempervivum laggeri Schnittsp. Sempervivum laggeri Schott, 1853