| Belize | | | Standley, P.C. & L. O. Williams | 1975 | Rubiaceae. En: Standley, P.C. & Williams, L.O. (eds.), Flora of Guatemala - Part XI | Fieldiana, Bot. | 24(11): 1–274 |
| Belize | | | Balick, M. J., M. H. Nee & D.E. Atha | 2000 | Checklist of the vascular plants of Belize | Mem. New York Bot. Gard. | 85: i–ix, 1–246 |
| Belize | | | Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera | 2012 | Rubiaceae a Verbenaceae | Fl. Mesoamer. | 4(2): i–xvi, 1–533 |
| Bolivia | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Bolivia | Beni | | Jørgensen, P. M., M. H. Nee, S. G. Beck & A.F. Fuentes | 2015 en adelante | Catálogo de las plantas vasculares de Bolivia (actualizaciones en línea) | | |
| Bolivia | Beni | | Jørgensen, P. M., M. H. Nee & S. G. Beck | 2014 | Catálogo de las plantas vasculares de Bolivia | Cat. Pl. Vasc. Bolivia, Monogr. Syst. Bot. Missouri Bot. Gard. | 127(1–2): i–viii, 1–1744 |
| Brazil | | | Forzza, R. C. | 2010 | (none) | Lista de espécies Flora do Brasil | http://floradobrasil.jbrj.gov.br/2010 |
| Brazil | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Caribbean | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Caribbean | Bahama Archipelago | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Caribbean | Trinidad & Tobago | Trinidad | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| 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 | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Costa Rica | | | Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera | 2012 | Rubiaceae a Verbenaceae | Fl. Mesoamer. | 4(2): i–xvi, 1–533 |
| Costa Rica | Puntarenas | | Trusty, J. L., H. C. Kesler & G. Haug Delgado | 2006 | Vascular Flora of Isla del Coco, Costa Rica | Proc. Calif. Acad. Sci., ser. 4, | 57(7): 247–355 |
| Ecuador | | | Lawesson, J. E., H. Adsersen & P. Bentley | 1987 | An updated and annotated check list of the vascular plants of the Galapagos Islands | Rep. Bot. Inst. Univ. Aarhus | 16: 1–74 |
| Ecuador | | | van der Werff, H. | 1977 | Vascular plants from the Galápagos Islands. New records and taxonomic notes | Bot. Not. | 130: 89–100 |
| Ecuador | | | Porter, D. M. | 1983 | Vascular plants of the Galapagos: Origins and dispersal | Patt. Evol. Galapagos Org. | 33–54 |
| Ecuador | Galapagos | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Galapagos | | Lawesson, J. E., H. Adsersen & P. Bentley | 1987 | An updated and annotated check list of the vascular plants of the Galapagos Islands | Rep. Bot. Inst. Univ. Aarhus | 16: 1–74 |
| Ecuador | Galapagos | | van der Werff, H. | 1977 | Vascular plants from the Galápagos Islands. New records and taxonomic notes | Bot. Not. | 130: 89–100 |
| Ecuador | Galapagos | | Porter, D. M. | 1983 | Vascular plants of the Galapagos: Origins and dispersal | Patt. Evol. Galapagos Org. | 33–54 |
| Ecuador | Napo | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Pichincha | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| El Salvador | | | Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera | 2012 | Rubiaceae a Verbenaceae | Fl. Mesoamer. | 4(2): i–xvi, 1–533 |
| French Guiana | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| 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 |
| Guatemala | | | Standley, P.C. & L. O. Williams | 1975 | Rubiaceae. En: Standley, P.C. & Williams, L.O. (eds.), Flora of Guatemala - Part XI | Fieldiana, Bot. | 24(11): 1–274 |
| Guatemala | | | Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera | 2012 | Rubiaceae a Verbenaceae | Fl. Mesoamer. | 4(2): i–xvi, 1–533 |
| Guatemala | Izabal | | Standley, P.C. & L. O. Williams | 1975 | Rubiaceae. En: Standley, P.C. & Williams, L.O. (eds.), Flora of Guatemala - Part XI | Fieldiana, Bot. | 24(11): 1–274 |
| Guyana | | | 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 |
| Guyana | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Hawaiian Isl | Hawaii | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Honduras | | | Molina R., A. | 1975 | Enumeración de las plantas de Honduras | Ceiba | 19(1): 1–118 |
| Madagascar | | | Hochreutiner, B. P. G. | 1908 | Sertum madagascariense. Etude systematique de deux collections de plantes a Madagascar par M.M. J. Guillot et H. Rusillon | Annuaire Conserv. Jard. Bot. Genève | 11/12: 35–135 |
| Mexico | | | Cowan, C. P. | 1983 | Flora de Tabasco | Listados Floríst. México | 1: 1–123 |
| Mexico | | | Breedlove, D.E. | 1986 | Flora de Chiapas | Listados Floríst. México | 4: i–v, 1–246 |
| Mexico | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Mexico | Chiapas | | 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 | | Breedlove, D.E. | 1986 | Flora de Chiapas | Listados Floríst. México | 4: i–v, 1–246 |
| Mexico | Nayarit | | 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 | Quintana Roo | | 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 | Tabasco | | 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 | Tabasco | | Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera | 2012 | Rubiaceae a Verbenaceae | Fl. Mesoamer. | 4(2): i–xvi, 1–533 |
| Mexico | Tabasco | | Cowan, C. P. | 1983 | Flora de Tabasco | Listados Floríst. México | 1: 1–123 |
| Mexico | Tabasco | | Pérez J., L. A., M. Sousa Sánchez, A. M. Hanan-Alipi, F. Chiang Cabrera & P. Tenorio L. | 2005 | Vegetación terrestre | Biodivers. Tabasco | Cap. 4: 65–110 |
| Mexico | Yucatán | | 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 |
| Nicaragua | | | Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera | 2012 | Rubiaceae a Verbenaceae | Fl. Mesoamer. | 4(2): i–xvi, 1–533 |
| Panama | | | Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera | 2012 | Rubiaceae a Verbenaceae | Fl. Mesoamer. | 4(2): i–xvi, 1–533 |
| 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 |
| Panama | | | Standley, P.C. & L. O. Williams | 1975 | Rubiaceae. En: Standley, P.C. & Williams, L.O. (eds.), Flora of Guatemala - Part XI | Fieldiana, Bot. | 24(11): 1–274 |
| Panama | Bocas del Toro | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Canal Area | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Coclé | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Colón | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Darién | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | Panamá | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Panama | San Blas | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Peru | | | Macbride, J. F. | 1936 | Rubiaceae, Flora of Peru | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(6/1): 3–261 |
| Peru | Loreto | | Macbride, J. F. | 1936 | Rubiaceae, Flora of Peru | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(6/1): 3–261 |
| Suriname | | | 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 |
| Suriname | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| United States | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| 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 | | | Small, J. K. | 1933 | (none) | Man. S.E. Fl. | i–xxii, 1–1554 |
| United States | Florida | | Small, J. K. | 1933 | (none) | Man. S.E. Fl. | i–xxii, 1–1554 |
| United States | South Carolina | | Radford, A. E., H. E. Ahles & C. R. Bell | 1968 | (none) | Man. Vasc. Fl. Carolinas | i–lxi, 1–1183 |
| Venezuela | | | Steyermark, J. A. | 1995 | Flora of the Venezuelan Guayana Project | | |
| Venezuela | | | Taylor, C. M., B. E. Hammel & D. H. Lorence | 2014 | Rubiaceae. En: Manual de Plantas de Costa Rica. Vol. VII. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 129: 464–779 |
| Venezuela | Amazonas | | Hokche, O., P. E. Berry & O. Huber | 2008 | (none) | Nuevo Cat. Fl. Vasc. Venez. | 1–859 |
| Venezuela | Amazonas | | Steyermark, J. A. | 1995 | Flora of the Venezuelan Guayana Project | | |
| Venezuela | Amazonas | | 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 |
| Venezuela | Aragua | | Steyermark, J. A. | 1995 | Flora of the Venezuelan Guayana Project | | |
| Venezuela | Aragua | | Hokche, O., P. E. Berry & O. Huber | 2008 | (none) | Nuevo Cat. Fl. Vasc. Venez. | 1–859 |
| Venezuela | Bolívar | | Hokche, O., P. E. Berry & O. Huber | 2008 | (none) | Nuevo Cat. Fl. Vasc. Venez. | 1–859 |
| Venezuela | Bolívar | | Steyermark, J. A. | 1995 | Flora of the Venezuelan Guayana Project | | |
| Venezuela | Bolívar | | 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 |
| Venezuela | Delta Amacuro | | Steyermark, J. A. | 1995 | Flora of the Venezuelan Guayana Project | | |
| Venezuela | Delta Amacuro | | 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 |
| Venezuela | Delta Amacuro | | 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 |
| Venezuela | Portuguesa | | Steyermark, J. A. | 1995 | Flora of the Venezuelan Guayana Project | | |
| Venezuela | Táchira | | Steyermark, J. A. | 1995 | Flora of the Venezuelan Guayana Project | | |
| Venezuela | Táchira | | Hokche, O., P. E. Berry & O. Huber | 2008 | (none) | Nuevo Cat. Fl. Vasc. Venez. | 1–859 |