Cyperus polystachyos subsp. leptostachyus Boeck. Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Cyperus species Cyperus polystachyos Name Homonyms Cyperus polystachyos var. leptostachyus Boeckeler Cyperus polystachyos subsp. leptostachyus Boeck.