Carex tenax Chapm. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Carex species Carex tenax Name Homonyms Carex tenax Chapm. ex Dewey Carex tenax Chapm. Carex tenax Berggr. Carex tenax Reut.