Euastrum bidentatum var. oculatum (Istv.) Willi Krieg. Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Euastrum species Euastrum bidentatum Name Synonyms Euastrum elegans var. oculatum Istv., 1887 Homonyms Euastrum bidentatum var. oculatum (Istv.) Willi Krieg.