Cyperus alternifolius subsp. obtusangulum (Boeck.) T.Koyama Dataset GBIF Backbone Taxonomy Rank SUBSPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Cyperus species Cyperus canus Name Homonyms Cyperus alternifolius var. obtusangulum (Boeckeler) T.Koyama Cyperus alternifolius subsp. obtusangulum (Boeck.) T.Koyama