Oxalis deppei Lodd. ex Sweet

POWO follows these authorities in synonymising this name:

• Hassler, M. & Muer, T. (2022). Flora Germanica: alle Farn- und Blütenpflanzen Deutschlands in Text und Bild 1: 1-864. Verlag Regionalkultur, Uberstadt-Weiher. [Cited as Oxalis tetraphylla var. tetraphylla.]
• Lambion, J., Delvosalle, L. & Duvigneaud, J. (2004). Nouvelle flore de la Belgique du G. D. de Luxembourg, du Nord de la France et des régions voisines, ed. 5: 1-1167. Edition du Patrimoine du Jardin botanique national de Belgique. [Cited as Oxalis tetraphylla.]
• Stace, C. (2019). New Flora of the British Isles ed. 4: 1-1266. C & M Floristics. [Cited as Oxalis tetraphylla var. tetraphylla.]
• Van Steenis, C.G.G.J. (ed.) (1971-1976). Flora Malesiana 7: 1-876. Noordhoff-Kolff N.V., Djakarta. [Cited as Oxalis tetraphylla.]

This name was accepted following an alternative taxonomy by these authorities:

• Meena, S.L. (2012). A checklist of the vascular plants of Banaskantha district, Gujarat, India. Nelumbo 54: 39-91. [Cited as Oxalis deppei.]
• Tutin, T.G. & al. (eds.) (1968). Flora Europaea 2: 1-469. Cambridge University Press. [Cited as Oxalis deppei.]
• Van Steenis, C.G.G.J. (ed.) (1971-1976). Flora Malesiana 7: 1-876. Noordhoff-Kolff N.V., Djakarta. [Cited as Oxalis deppei.]