| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | Lot, A. et al. 1999. Catálogo de angiospermas acuáticas de México. Cuad. Inst. Biol. 33:100. |
| 1 | Native | Southern America | Brazil | Brazil | Mato Grosso | | Pott, V. J. 1998. A família Nymphaeaceae no Pantanal, Mato Grosso e Mato Grosso do Sul, Brasil. Acta Bot. Brasil. 12:193. |
| 1 | Native | Southern America | Brazil | Brazil | Rio Grande do Sul | | Wiersema, J. H. 1987. A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Syst. Bot. Monogr. 16:87. |
| 1 | Native | Southern America | Central America | Costa Rica | Guanacaste | | Hammel, B. E. et al., eds. 2003-. Manual de plantas de Costa Rica |
| 1 | Native | Southern America | Central America | El Salvador | | | Wiersema, J. H. 1987. A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Syst. Bot. Monogr. 16:87. |
| 1 | Native | Southern America | Southern South America | Argentina | Corrientes | | Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74. |
| 1 | Native | Southern America | Southern South America | Argentina | Entre Ríos | | Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74. |
| 1 | Native | Southern America | Southern South America | Argentina | Formosa | | Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74. |
| 1 | Native | Southern America | Southern South America | Argentina | Santa Fe | | Zuloaga, F. O. & O. Morrone, eds. 1996, 1999. Catálogo de las plantas vasculares de la República Argentina. I. Pteridophyta, Gymnospermae y Angiospermae (Monocotyledonae), II. Dicotyledonae. Monogr. Syst. Bot. Missouri Bot. Gard. 60, 74. |
| 1 | Native | Southern America | Southern South America | Paraguay | Boquerón | | Wiersema, J. H. 1987. A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Syst. Bot. Monogr. 16:87. |
| 1 | Native | Southern America | Southern South America | Paraguay | Central | | Wiersema, J. H. 1987. A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Syst. Bot. Monogr. 16:87. |
| 1 | Native | Southern America | Southern South America | Paraguay | Cordillera | | Wiersema, J. H. 1987. A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Syst. Bot. Monogr. 16:87. |
| 1 | Native | Southern America | Southern South America | Paraguay | Ñeembucú | | Wiersema, J. H. 1987. A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Syst. Bot. Monogr. 16:87. |
| 1 | Native | Southern America | Southern South America | Paraguay | Paraguarí | | Wiersema, J. H. 1987. A monograph of Nymphaea subgenus Hydrocallis (Nymphaeaceae). Syst. Bot. Monogr. 16:87. |
| 1 | Native | Southern America | Western South America | Bolivia | Santa Cruz | | Ritter, N. P. et al. 2001. Nymphaea (Nymphaeaceae) in Bolivia: notes on several species, three new country records, and a key to species. Rhodora 103:326-331. |
| 1 | Native | Southern America | Western South America | Ecuador | El Oro | | Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75 |
| 1 | Native | Southern America | Western South America | Ecuador | Guayas | | Jørgensen, P. M. & S. León-Yánez, eds. 1999. Catalogue of the vascular plants of Ecuador. Monogr. Syst. Bot. Missouri Bot. Gard. 75 |