| Argentina | | | Burger, W. C. & K. A. Barringer | 2000 | Family 193. Scrophulariaceae. En: W. C. Burger (ed.), Flora Costaricensis | Fieldiana, Bot., n.s. | 41: 1–69 |
| Brazil | | | Forzza, R. C. | 2010 | (none) | Lista de espécies Flora do Brasil | http://floradobrasil.jbrj.gov.br/2010 |
| China | Fujian | | Flora of China Editorial Committee | 1998 | Flora of China (Scrophulariaceae through Gesneriaceae) | Fl. China | 18: 1–449 |
| China | Guangdong | | Flora of China Editorial Committee | 1998 | Flora of China (Scrophulariaceae through Gesneriaceae) | Fl. China | 18: 1–449 |
| China | Guangxi | | Flora of China Editorial Committee | 1998 | Flora of China (Scrophulariaceae through Gesneriaceae) | Fl. China | 18: 1–449 |
| China | Hainan | | Flora of China Editorial Committee | 1998 | Flora of China (Scrophulariaceae through Gesneriaceae) | Fl. China | 18: 1–449 |
| China | Taiwan | | Flora of China Editorial Committee | 1998 | Flora of China (Scrophulariaceae through Gesneriaceae) | Fl. China | 18: 1–449 |
| China | Yunnan | | Flora of China Editorial Committee | 1998 | Flora of China (Scrophulariaceae through Gesneriaceae) | Fl. China | 18: 1–449 |
| Costa Rica | | | Burger, W. C. & K. A. Barringer | 2000 | Family 193. Scrophulariaceae. En: W. C. Burger (ed.), Flora Costaricensis | Fieldiana, Bot., n.s. | 41: 1–69 |
| Costa Rica | Alajuela | | Burger, W. C. & K. A. Barringer | 2000 | Family 193. Scrophulariaceae. En: W. C. Burger (ed.), Flora Costaricensis | Fieldiana, Bot., n.s. | 41: 1–69 |
| French Guiana | | | Funk, V. A., T. H. Hollowell, P. E. Berry, C. L. Kelloff & S. Alexander | 2007 | Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana) | Contr. U.S. Natl. Herb. | 55: 1–584 |
| Panama | | | D'Arcy, W. G. | 1987 | Flora of Panama. Checklist and Index. Part 1: The introduction and checklist | Monogr. Syst. Bot. Missouri Bot. Gard. | 17: v–xxx, 1–328 |
| Peru | | | Philcox, D. | 1979 | Clarification of the name Bacopa monnieri (Scrophulariaceae) | Kew Bull. | 33(4): 679–680 |
| 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 | | | Long, R. W. & O. K. Lakela | 1971 | (none) | Fl. Trop. Florida | i–xvii, 1–962 |
| United States | | | Gleason, H. A. | 1968 | The Sympetalous Dicotyledoneae | Ill. Fl. N.E. U.S. | vol. 3. 596 pp |
| United States | | | Godfrey, R. K. & J. W. Wooten | 1981 | (none) | Aquatic Wetland Pl. S.E. U.S. Dicot. | 1–944 |
| United States | | | Burger, W. C. & K. A. Barringer | 2000 | Family 193. Scrophulariaceae. En: W. C. Burger (ed.), Flora Costaricensis | Fieldiana, Bot., n.s. | 41: 1–69 |
| United States | Alabama | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | Florida | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | Florida | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Florida | | Long, R. W. & O. K. Lakela | 1971 | (none) | Fl. Trop. Florida | i–xvii, 1–962 |
| United States | Florida | | Gleason, H. A. | 1968 | The Sympetalous Dicotyledoneae | Ill. Fl. N.E. U.S. | vol. 3. 596 pp |
| United States | Florida | | Godfrey, R. K. & J. W. Wooten | 1981 | (none) | Aquatic Wetland Pl. S.E. U.S. Dicot. | 1–944 |
| United States | Georgia | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | Mississippi | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| 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 | South Carolina | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | Texas | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Texas | | Long, R. W. & O. K. Lakela | 1971 | (none) | Fl. Trop. Florida | i–xvii, 1–962 |
| United States | Texas | | Gleason, H. A. | 1968 | The Sympetalous Dicotyledoneae | Ill. Fl. N.E. U.S. | vol. 3. 596 pp |
| United States | Texas | | Godfrey, R. K. & J. W. Wooten | 1981 | (none) | Aquatic Wetland Pl. S.E. U.S. Dicot. | 1–944 |
| United States | Virginia | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| United States | Virginia | | Fernald, M. | 1950 | (none) | Manual (ed. 8) | i–lxiv, 1–1632 |
| United States | Virginia | | Long, R. W. & O. K. Lakela | 1971 | (none) | Fl. Trop. Florida | i–xvii, 1–962 |
| United States | Virginia | | Gleason, H. A. | 1968 | The Sympetalous Dicotyledoneae | Ill. Fl. N.E. U.S. | vol. 3. 596 pp |
| United States | Virginia | | Godfrey, R. K. & J. W. Wooten | 1981 | (none) | Aquatic Wetland Pl. S.E. U.S. Dicot. | 1–944 |
| Venezuela | Carabobo | | Hokche, O., P. E. Berry & O. Huber | 2008 | (none) | Nuevo Cat. Fl. Vasc. Venez. | 1–859 |
| Venezuela | Falcón | | Hokche, O., P. E. Berry & O. Huber | 2008 | (none) | Nuevo Cat. Fl. Vasc. Venez. | 1–859 |
| Venezuela | Portuguesa | | Hokche, O., P. E. Berry & O. Huber | 2008 | (none) | Nuevo Cat. Fl. Vasc. Venez. | 1–859 |