| 1 | Native | Northern America | Northern Mexico | Mexico | Baja California Sur | | McVaugh, R. 1983-. Flora Novo-Galiciana. Note: = Juncus mexicanus Willd. ex Schult. & Schult. f. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Chihuahua | | McVaugh, R. 1983-. Flora Novo-Galiciana. Note: = Juncus mexicanus Willd. ex Schult. & Schult. f. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Coahuila de Zaragoza | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Durango | | McVaugh, R. 1983-. Flora Novo-Galiciana. Note: = Juncus mexicanus Willd. ex Schult. & Schult. f. |
| 1 | Native | Northern America | Northern Mexico | Mexico | San Luis Potosí | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Northern Mexico | Mexico | Zacatecas | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Northwestern U.S.A. | United States | Colorado | w. | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | South-Central U.S.A. | United States | New Mexico | w. | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Ciudad de México | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Guanajuato | | McVaugh, R. 1983-. Flora Novo-Galiciana. Note: = Juncus mexicanus Willd. ex Schult. & Schult. f. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Hidalgo | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Jalisco | n.e. | McVaugh, R. 1983-. Flora Novo-Galiciana. Note: = Juncus mexicanus Willd. ex Schult. & Schult. f. |
| 1 | Native | Northern America | Southern Mexico | Mexico | México | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Oaxaca | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Puebla | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Tlaxcala | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Southern Mexico | Mexico | Veracruz de Ignacio de la Llave | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Arizona | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | California | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Nevada | s. | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Northern America | Southwestern U.S.A. | United States | Utah | | FNA Editorial Committee. 1993-. Flora of North America. |
| 1 | Native | Southern America | Central America | Guatemala | | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Southern America | Southern South America | Argentina | Buenos Aires | | 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 | Chile | | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Southern America | Western South America | Bolivia | La Paz | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Southern America | Western South America | Peru | Cusco | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |
| 1 | Native | Southern America | Western South America | Peru | Puno | | Balslev, H. 1996. Juncaceae. Fl. Neotrop. Monogr. 68:96. |