Echium diffusum Sieber Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Boraginales family Boraginaceae genus Pontechium species Pontechium maculatum Name Homonyms Echium diffusum Guss. Echium diffusum Jan ex Nyman Echium diffusum Sm. Echium diffusum Sieber ex Steud. Echium diffusum Sieber Echium diffusum Jan