Callistemon speciosus (Sims) DC. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Myrtales family Myrtaceae genus Callistemon species Callistemon speciosus Name Homonyms Callistemon speciosus (Sims) Sweet Callistemon speciosus (Sims) DC.