Cyperus squarrosus L., Cent. pl. 2: 6. 1756 sec. González-Elizondo & al. 2018
- =Cyperus aristatus Rottb., Descr. Icon. Rar. Pl.: 23. 1773 syn. sec. Diego & González 2008
- =Cyperus pygmaeus Rottb., Descr. Icon. Rar. Pl.: 20, pl. 14, f. 4-5. 1773 syn. sec. ???
- =Scirpus lappaceus Lam., Tabl. Encycl. 1: 139. 1791 syn. sec. Diego & González 2008
- =Cyperus uncinatus R. Br., Prodr.: 215. 1810 syn. sec. Diego & González 2008
- =Cyperus brownii Roem. & Schult., Syst. Veg. 2: 228. 1817 syn. sec. Diego & González 2008
- =Cyperus inflexus Muhl., Descr. Gram.: 16. 1817 syn. sec. Diego & González 2008
- =Cyperus purshii Roem. & Schult., Syst. Veg. 2: 177-178. 1817 syn. sec. Diego & González 2008
- =Isolepis echinulata Kunth, Enum. pl. 2: 205. 1837 syn. sec. Diego & González 2008
- =Cyperus falciculosus Liebm. in Kongel. Danske Vidensk. Selsk. Skr. 5. 2 (Mexic. Halvgr.): 204-205. 1850 syn. sec. Diego & González 2008
- =Cyperus aristatus f. inflexus (Muhl.) C.B. Clarke in J. Linn. Soc., Bot. 21: 92. 1884 syn. sec. Diego & González 2008
- =Dichostylis aristata (Rottb.) Palla in Bot. Jahrb. Syst. 10: 296. 1888 syn. sec. Diego & González 2008
- =Mariscus squarrosus (L.) C.B. Clarke, Fl. Brit. India 6: 623. 1893 syn. sec. Diego & González 2008
- =Cyperus aristatus var. boeckeleri Cavara in Atti Ist. Bot. Univ. Bot. Pavia, ser. 2, 4: 25. 1896 syn. sec. Diego & González 2008
- =Chlorocyperus inflexus (Muhl.) Palla in Allg. Bot. Z. Syst. 17: 6. 1911 syn. sec. Diego & González 2008
- =Cyperus aristatus var. inflexus (Muhl.) Boeckeler ex Kük., Pflanzenr. IV(20 Heft 101): 504. 1936 syn. sec. Diego & González 2008
- =Cyperus aristatus var. runyonii O'Neill in Rhodora 44: 56-57. 1942 syn. sec. Diego & González 2008