| 1 | Native | Northern America | Northern Mexico | Mexico | Coahuila de Zaragoza | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Nuevo León | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Northern Mexico | Mexico | San Luis Potosí | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Sinaloa | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Tamaulipas | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | Texas | | |
| 1 | Native | Northern America | Southern Mexico | Mexico | Campeche | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Chiapas | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Ciudad de México | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Guerrero | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Hidalgo | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Jalisco | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | México | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Michoacán de Ocampo | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Nayarit | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Oaxaca | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Puebla | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Querétaro | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Quintana Roo | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Tabasco | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Yucatán | | McVaugh, R. 1983-. Flora Novo-Galiciana. |
| 1 | Native | Southern America | Central America | Belize | | | |
| 1 | Native | Southern America | Central America | Costa Rica | | | |
| 1 | Native | Southern America | Central America | El Salvador | | | |
| 1 | Native | Southern America | Central America | Guatemala | | | |
| 1 | Native | Southern America | Central America | Honduras | | | |
| 1 | Native | Southern America | Central America | Nicaragua | | | |
| 1 | Native | Southern America | Central America | Panama | | | Woodson, R. E. & R. W. Schery, eds. 1943-1980. Flora of Panama. Note: = Wedelia calycina Rich. |