Carex sphaerostachya Tuck. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Carex species Carex brunnescens Name Homonyms Carex sphaerostachya (Tuck.) Dewey Carex sphaerostachya Tuck.