Staurastrum scabrum Ralfs Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Staurastrum species Staurastrum scabrum Name Homonyms Staurastrum scabrum Brébisson Staurastrum scabrum Ralfs