Lithops optica f. rubra (Tischer) Jacobsen Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Aizoaceae genus Lithops species Lithops optica Name Homonyms Lithops optica var. rubra (Tischer) Tischer Lithops optica f. rubra (Tischer) Jacobsen Lithops optica subsp. rubra (Tischer) H.Jacobsen