Achnanthes minutissima Kütz. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Ochrophyta class Bacillariophyceae order Achnanthales family Achnanthidiaceae genus Achnanthidium species Achnanthidium minutissimum Name Homonyms Achnanthes minutissima (Kützing) Cleve Achnanthes minutissima Kützing, 1833