Anhalonium williamsii (Salm-Dyck) Rümpler Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Lophophora species Lophophora williamsii Name Homonyms Anhalonium williamsii (Lem. ex Salm-Dyck) C.F.Först. Anhalonium williamsii (Salm-Dyck) Rümpler