Cosmoastrum brebissonii var. brevispinum (West) Pal.-Mordv., 1982 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurastrum species Staurastrum pilosum Name Homonyms Cosmoastrum brebissonii var. brevispinum (West) Pal.-Mordv., 1982