Scirpus rigidus Schrad. Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Liliopsida order Poales family Cyperaceae genus Schoenoplectus species Schoenoplectus californicus Name Homonyms Scirpus rigidus (Steud.) Boeckeler Scirpus rigidus Griseb. Scirpus rigidus Schrad. ex Nees Scirpus rigidus Schrad.