Hybanthus oppositifolius (L.) Taub., Nat. Pflanzenfam. III 6(119): 333. 1895 sec. Martínez-Salas 2011
- =Viola oppositifolia L., Sp. Pl. (ed. 2) 2: 1327. 1763 syn. sec. The Plant List 2013
- =Ionidium angustifolium Kunth, Nov. Gen. Sp. (quarto ed.) 5: 377. 1821 syn. sec. The Plant List 2013
- =Hybanthus angustifolius (Kunth) Standl. in J. Wash. Acad. Sci. 17(7): 168. 1927 syn. sec. The Plant List 2013