Cyperus retroflexus Buckley in Proc. Acad. Nat. Sci. Philadelphia 14: 9. 1862 sec. González-Elizondo & al. 2018
- =Cyperus uniflorus Torr. & Hook. in Ann. Lyceum Nat. Hist. New York 3: 431-432. 1836 syn. sec. Diego & González 2008
- =Mariscus uniflorus (Torr. & Hook.) Steud., Syn. pl. glumac. 2: 64. 1854 syn. sec. Diego & González 2008
- =Cyperus uniflorus var. retroflexus (Buckley) Kük., Pflanzenr. IV. 20 (Heft 101, 4): 521. 1936 syn. sec. Diego & González 2008