Euastrum bidentatum f. bidentatum Dataset GBIF Backbone Taxonomy Rank FORM Classification kingdom Plantae phylum Charophyta class Zygnematophyceae order Zygnematales family Desmidiaceae genus Euastrum species Euastrum bidentatum Name Homonyms Euastrum bidentatum var. bidentatum Euastrum bidentatum f. bidentatum