Rhynchospora filiformis Vahl, Enum. pl. 2: 232. 1806 sec. González-Elizondo & al. 2018
- =Dichromena filiformis (Vahl) Kunth, Enum. pl. 2: 281. 1837 syn. sec. Diego & González 2008
- =Spermodon filiformis (Vahl) Nees, Fl. bras. 2 parte 1: 118-119. 1842 syn. sec. Diego & González 2008
- =Rhynchospora podosperma C. Wright in Anales Acad. Ci. Méd. Habana 8: 87. 1871 syn. sec. Diego & González 2008
- =Rhynchospora longispicata Boeckeler in Linnaea 37: 600-601. 1873 syn. sec. Diego & González 2008