Oxalis nelsonii (Small) R. Knuth in Notizbl. Bot. Gart. Berlin–Dahlem 7(67): 316. 1919 sec. Sidwell 2011
- ≡Ionoxalis nelsonii Small, N. Amer. Fl. 25(1): 31. 1907 syn. sec. The Plant List 2013
- =Ionoxalis multiceps Small, N. Amer. Fl. 25: 31. 1907 syn. sec. Sidwell 2011
- =Ionoxalis rosei Small, N. Amer. Fl. 25: 32. 1907 syn. sec. The Plant List 2013
- =Ionoxalis goldmanii Rose, Contr. U.S. Natl. Herb. 13(9): 304. 1911 syn. sec. Sidwell 2011
- =Oxalis rosei (Small) R. Knuth in Notizbl. Königl. Bot. Gart. Berlin 7(67): 316. 1919 syn. sec. The Plant List 2013
- =Oxalis goldmanii (Rose) R. Knuth, Repert. Spec. Nov. Regni Veg. 24(4-13): 55. 1927 syn. sec. Sidwell 2011
- =Oxalis multiceps (Small) R. Knuth, Notizbl. Königl. Bot. Gart. Berlin, 7(67) 316. 1919 syn. sec. Sidwell 2011