Equisetum myriochaetum Schltdl. & Cham. Equisetum myriochaetum Schltdl. & Cham., Linnaea 5: 623. 1830 sec. Mickel & Smith 2004=Equisetum mexicanum Gand., Bull. Soc. Bot. France 66: 304. 1920 syn. sec. The Plant List 2013