| 1 | Native | Northern America | Northern Mexico | Mexico | Coahuila de Zaragoza | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Durango | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Nuevo León | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Northern Mexico | Mexico | San Luis Potosí | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Tamaulipas | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | Texas | s. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Alabama | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Arkansas | s. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Florida | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Georgia | s. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Louisiana | s. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Mississippi | s.e. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | North Carolina | e. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | South Carolina | s.e. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southeastern U.S.A. | United States | Virginia | s.e. | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Campeche | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Chiapas | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Colima | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Guerrero | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Jalisco | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Morelos | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Oaxaca | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Querétaro | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Quintana Roo | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Tabasco | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Yucatán | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Bahamas | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Bermuda | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Cayman Islands | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Cuba | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Dominican Republic | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Guadeloupe | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Haiti | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Jamaica | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | Turks and Caicos Islands | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Caribbean | United States | Puerto Rico | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Central America | Belize | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Central America | Costa Rica | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Central America | Guatemala | | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |
| 1 | Native | Southern America | Northern South America | Venezuela | Mérida | | Hokche, O. et al. 2008. Nuevo catálogo de la flora vascular de Venezuela. |
| 1 | Native | Southern America | Northern South America | Venezuela | Sucre | | Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Mem. New York Bot. Gard. 37:79-86. |