Cyperus elegans L. subsp. elegans Cyperus elegans L. subsp. elegans, Sp. Pl. 1: 45-46. 1753 sec. Diego & González 2008=Scirpus potosiensis C.B. Clarke in Kew Bull., Addit. Ser. 8: 89, 112. 1908 syn. sec. Diego & González 2008