| Argentina | Buenos Aires | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Argentina | Corrientes | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Argentina | Mendoza | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Brazil | São Paulo | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Caribbean | Leeward Islands | Dominica | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Caribbean | Leeward Islands | St. Kitts | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Caribbean | Trinidad & Tobago | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Caribbean | Windward Islands | St. Vincent | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Chile | | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Costa Rica | San José | | Morales, J. F. | 2007 | Oxalidaceae. En: Manual de Plantas de Costa Rica. Vol. VI. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 111: 851–858 |
| Ecuador | | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Pichincha | Quito | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Guyana | | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Panama | | | D'Arcy, W. G. | 1987 | Flora of Panama. Checklist and Index. Part 1: The introduction and checklist | Monogr. Syst. Bot. Missouri Bot. Gard. | 17: v–xxx, 1–328 |
| Panama | Bocas del Toro | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Canal Area | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Panama | Canal Area | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Chiriquí | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Panama | Chiriquí | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Coclé | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | California | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | District of Columbia | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |
| Uruguay | Montevideo | | Lourteig, A. | 2000 | Oxalis L. subgéneros Monoxalis (Small) Lourt., Oxalis y Trifidus Lourt. | Bradea | 7(2): 201–629 |