Staurastrum oligacanthum Bréb. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Staurastrum species Staurastrum oligacanthum Name Homonyms Staurastrum oligacanthum Bréb. ex W.Archer Staurastrum oligacanthum Bréb.