Schoenus stygius (R.Br.) Poir. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Mesomelaena species Mesomelaena stygia Name Homonyms Schoenus stygius (R.Br.) Poir. Schoenus stygius (R.Br.) Roem. & Schult.