| 1 | Native | Northern America | Southeastern U.S.A. | United States | Florida | Pensacola Co. | Lehtonen, S. 2008. An integrative approach to species delimitation in Echinodorus (Alismataceae) and the description of two new species. Kew Bull. 63:554-555. Note: separates subsp. aureus (Fassett) R. R. Haynes & Holm-Nielsen (= Echinodorus floribundus (Seub.) Seub.) & E. longiscapus Arechav. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Chiapas | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | |
| 1 | Native | Southern America | Brazil | Brazil | Acre | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Bahia | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Ceará | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Distrito Federal | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Goiás | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Mato Grosso | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Mato Grosso do Sul | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Minas Gerais | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Paraná | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Rio de Janeiro | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Rio Grande do Sul | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | Santa Catarina | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Brazil | Brazil | São Paulo | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Caribbean | Cuba | | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Central America | Costa Rica | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | El Salvador | | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Central America | Guatemala | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | Honduras | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | Nicaragua | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Central America | Panama | | | Davidse, G. et al., eds. 1994. Flora mesoamericana. |
| 1 | Native | Southern America | Northern South America | Venezuela | Barinas | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Northern South America | Venezuela | Zulia | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Argentina | Buenos Aires | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Argentina | Córdoba | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Argentina | Corrientes | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Argentina | Entre Ríos | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Argentina | Formosa | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Argentina | Misiones | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Argentina | Santa Fe | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Paraguay | | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Southern South America | Uruguay | | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Western South America | Bolivia | | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Western South America | Colombia | | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Western South America | Ecuador | | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 1 | Native | Southern America | Western South America | Peru | Madre de Dios | | Haynes, R. R. & L. B. Holm-Nielsen. 1994. The Alismataceae. Fl. Neotrop. Monogr. 64:42-50. |
| 2 | Cultivated | | | | | also cult. | |