Synonyms
Scirpus pungens var. longispicatus (Britton) Cronquist
Scirpus americanus var. polyphyllus (Boeckeler) Beetle
Schoenoplectus americanus subsp. longispicatus (Britton) Soják
Scirpus pungens var. polyphyllus Boeckeler
Scirpus solispicatus Lunell
Scirpus americanus var. longibracteatus Barros & Osten
Scirpus americanus var. longispicatus Britton
Schoenoplectus pungens var. polyphyllus (Boeckeler) Dorn
Schoenoplectus pungens subsp. longispicatus (Britton) Á.Löve & D.Löve