Rhynchospora alba var. fusca (L.) Pursh Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Rhynchospora species Rhynchospora fusca Name Homonyms Rhynchospora alba var. fusca (L.) Vahl Rhynchospora alba var. fusca (L.) Pursh Rhynchospora alba subsp. fusca (L.) Vahl