| | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Brazil | | | Forzza, R. C. | 2010 | (none) | Lista de espécies Flora do Brasil | http://floradobrasil.jbrj.gov.br/2010 |
| Brazil | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Caribbean | Cuba | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| China | | | Flora of China Editorial Committee | 2011 | Flora of China (Curcurbitaceae through Valerianaceae with Annonaceae and Berberidaceae) | Fl. China | 19: 1–884 |
| Colombia | Antioquia | | Idárraga-Piedrahita, A., R. del C. Ortiz, R. Callejas Posada & M. Merello | 2011 | Listado de las plantas vasculares del departamento de Antioquia | Fl. Antioquia: Cat. | 2: 9–939 |
| Costa Rica | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Costa Rica | | | Morales, J. F. | 2020 | Berberidaceae. En: Manual de Plantas de Costa Rica. Vol. IV, Parte 2. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.). | Monogr. Syst. Bot. Missouri Bot. Gard. | 138: 52–54 |
| El Salvador | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Guatemala | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Honduras | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Honduras | | | Nelson, C. H. | 2008 | (none) | Cat. Pl. Vasc. Honduras | i–xxix, 31–1576 |
| Mexico | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Mexico | | | Villaseñor Ríos, J. L. | 2016 | Checklist of the native vascular plants of Mexico. Catálogo de las plantas vasculares nativas de México. | Revista Mex. Biodivers. | 87(3): 559–902 |
| Mexico | Chiapas | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Nicaragua | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| Panama | | | Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie & S. Knapp | 2024 | Cycadaceae a Cactaceae | Fl. Mesoamer. | 2(1): ined. |
| United States | | | USDA, NRCS | 2007 | The PLANTS Database (http://plants.usda.gov). National Plant Data Center, Baton Rouge. | | |
| United States | | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |
| United States | California | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |