Cosmoastrum teliferum var. obtusum (West) Petlovany, 2015 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum teliferum Name Homonyms Cosmoastrum teliferum var. obtusum (West) Petlovany, 2015 Cosmoastrum teliferum f. obtusum (West) Pal.-Mordv., 1982