Carex atrata subsp. caucasica (Steven) Boott Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Carex species Carex caucasica Name Homonyms Carex atrata subsp. caucasica (Steven) Kük. Carex atrata var. caucasica (Steven) Boott Carex atrata subsp. caucasica (Steven) Boott