Deiregyne rhombilabia Garay in Bot. Mus. Leafl. 28(4): 284. 1982 sec. Soto-Arenas & al. 2007
- =Spiranthes rhombilabia (Garay) McVaugh, Fl. Novo-Galiciana 16: 332. 1985 syn. sec. Soto-Arenas & al. 2007
- =Oestlundorchis rhombilabia (Garay) Szlach. in Fragm. Florist. Geobot. 36(1): 30. 1991 syn. sec. Solano Gómez & al. 2020
- =Oestlundorchis hio Szlach. in Fragm. Florist. Geobot. 39: 429. 1994 syn. sec. Soto-Arenas & al. 2007
- =Triceratostris hio (Szlach.) Szlach. & R. González in Fragm. Florist. Geobot. 41: 1023. 1996 syn. sec. Soto-Arenas & al. 2007
- =Triceratostris rhombilabia (Garay) Szlach. & R. González in Fragm. Florist. Geobot. 41: 1022. 1996 syn. sec. Soto-Arenas & al. 2007