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