| Chile | | | Marticorena, C. F. S. & M. Quezada | 1985 | Catálogo de la Flora Vascular de Chile | Gayana, Bot. | 42: 1–157 |
| Chile | | | Morales, J. F. | 2007 | Orobanchaceae. En: Manual de Plantas de Costa Rica. Vol. VI. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 111: 848–850 |
| Colombia | | | Morales, J. F. | 2007 | Orobanchaceae. En: Manual de Plantas de Costa Rica. Vol. VI. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 111: 848–850 |
| Costa Rica | Cartago | | Gómez, L. D., P. & W. Burger | 2000 | Family 197. Orobanchaceae. In: W. Burger (ed.), Flora Costaricensis | Fieldiana, Bot., n.s. | 41: 165–169 |
| Costa Rica | Cartago | | Morales, J. F. | 2007 | Orobanchaceae. En: Manual de Plantas de Costa Rica. Vol. VI. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 111: 848–850 |
| South Africa | | | Gibbs Russell, G. E., W. G. M. Welman, E. Retief, K. L. Immelman, G. Germishuizen, B. J. Pienaar, M. Van Wyk & A. Nicholas | 1987 | List of species of southern African plants | Mem. Bot. Surv. South Africa | 2(1–2): 1–152(pt. 1), 1–270(pt. 2) |
| United States | | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | | | Small, J. K. | 1933 | (none) | Man. S.E. Fl. | i–xxii, 1–1554 |
| United States | | | Gleason, H. A. | 1968 | The Sympetalous Dicotyledoneae | Ill. Fl. N.E. U.S. | vol. 3. 596 pp |
| United States | | | Morales, J. F. | 2007 | Orobanchaceae. En: Manual de Plantas de Costa Rica. Vol. VI. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 111: 848–850 |
| United States | New Jersey | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | New Jersey | | Small, J. K. | 1933 | (none) | Man. S.E. Fl. | i–xxii, 1–1554 |
| United States | New Jersey | | Gleason, H. A. | 1968 | The Sympetalous Dicotyledoneae | Ill. Fl. N.E. U.S. | vol. 3. 596 pp |
| United States | North Carolina | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | North Carolina | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | North Carolina | | Small, J. K. | 1933 | (none) | Man. S.E. Fl. | i–xxii, 1–1554 |
| United States | North Carolina | | Gleason, H. A. | 1968 | The Sympetalous Dicotyledoneae | Ill. Fl. N.E. U.S. | vol. 3. 596 pp |
| United States | Virginia | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |