Cyperus haspan L., Sp. Pl.: 45. 1753 sec. González-Elizondo & al. 2018
- =Cyperus juncoides Lam., Tabl. encycl. 1: 147. 1791 syn. sec. Diego & González 2008
- =Cyperus aphyllus Vahl, Eclog. amer. 1 parte 2: 6. 1798 syn. sec. Diego & González 2008
- =Cyperus autumnalis Vahl, Enum. pl. 2: 318. 1805 syn. sec. Diego & González 2008
- =Cyperus junceus Link in Jahrb. Gewächsk. 1: 85. 1820 syn. sec. Diego & González 2008
- =Cyperus haspan var. coarctatus Nees, Fl. bras. 2 parte 1: 25-26. 1842 syn. sec. Diego & González 2008
- =Cyperus riparius Schrad. ex Nees, Fl. bras. 2 parte 1: 28. 1842 syn. sec. Diego & González 2008
- =Cyperus haspan var. americanus Boeckeler in Linnaea 35: 575-576. 1868 syn. sec. Diego & González 2008
- =Cyperus efoliatus Boeckeler in Allg. Bot. Z. Syst. 1: 226. 1895 syn. sec. Diego & González 2008
- =Cyperus americanus (Boeckeler) Palla, Akad. Wiss. Wien, Math.-Naturwiss. Kl., Denkschr. 79: 173. 1908 syn. sec. Diego & González 2008
- =Cyperus haspan subsp. juncoides (Lam.) Kük. in Repert. Spec. Nov. Regni Veg. 23: 184. 1926 syn. sec. Diego & González 2008
- =Cyperus haspan f. coarctatus (Nees) Osten in Anales Mus. Nac. Montevideo, ser. 2, 3: 135. 1931 syn. sec. Diego & González 2008
- =Cyperus haspan var. riparius (Schrad. ex Nees) Kük., Pflanzenr. IV. 20 (Heft 101, 2): 250. 1936 syn. sec. Diego & González 2008