Piperia elongata Rydb. Piperia elongata Rydb. in Bull. Torrey Bot. Club 28: 270. 1901 sec. Romero-González & al. 2003=Platanthera elongata (Rydb.) R.M. Bateman in Bot. J. Linn. Soc. 142: 21. 2003 syn. sec. Solano Gómez & al. 2020