| Colombia | | | Nelson, C. H. | 2008 | (none) | Cat. Pl. Vasc. Honduras | i–xxix, 31–1576 |
| Colombia | | | Henderson, A. & I. Villalba | 2013 | A revision of Welfia (Arecaceae) | Phytotaxa | 119(1): 33–44 |
| 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 |
| Colombia | Antioquia | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Colombia | Chocó | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Colombia | Nariño | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Costa Rica | | | Nelson, C. H. | 2008 | (none) | Cat. Pl. Vasc. Honduras | i–xxix, 31–1576 |
| Costa Rica | | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Costa Rica | | | Grayum, M. H. | 2003 | Arecaceae. En: Manual de Plantas de Costa Rica. Vol. II. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 92: 201–293 |
| Costa Rica | | | Henderson, A. & I. Villalba | 2013 | A revision of Welfia (Arecaceae) | Phytotaxa | 119(1): 33–44 |
| Costa Rica | Puntarenas | | Cornejo, X., S.A. Mori, R. Aguilar Fernández, H. I. Stevens & F. Douwes | 2012 | Phytogeography of the trees of the Osa Peninsula, Costa Rica | Brittonia | 64(1): 76–101 |
| Ecuador | | | Henderson, A. & I. Villalba | 2013 | A revision of Welfia (Arecaceae) | Phytotaxa | 119(1): 33–44 |
| Ecuador | | | Grayum, M. H. | 2003 | Arecaceae. En: Manual de Plantas de Costa Rica. Vol. II. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 92: 201–293 |
| Ecuador | Manabí | | 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 |
| Ecuador | Pichincha | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Honduras | | | Grayum, M. H. | 2003 | Arecaceae. En: Manual de Plantas de Costa Rica. Vol. II. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 92: 201–293 |
| Honduras | | | Nelson, C. H. | 2008 | (none) | Cat. Pl. Vasc. Honduras | i–xxix, 31–1576 |
| Honduras | | | Henderson, A. & I. Villalba | 2013 | A revision of Welfia (Arecaceae) | Phytotaxa | 119(1): 33–44 |
| Honduras | Gracias a Dios | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Nicaragua | | | Henderson, A. & I. Villalba | 2013 | A revision of Welfia (Arecaceae) | Phytotaxa | 119(1): 33–44 |
| Nicaragua | Zelaya | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Panama | | | Condit, R., S. Aguilar & R. A. Pérez | 2020 | Trees of Panama: A complete checklist with every geographic range | Forest Ecosyst. | 7–42: 1–13 |
| Panama | | | Condit, R., R. A. Pérez & S. Aguilar | 2019 | Complete Tree Species of Panama, DataONE, Dataset. https://doi.org/10.15146/R3M97W | | |
| Panama | | | Henderson, A., G. Galeano & R. Bernal | 1995 | (none) | Field Guide Palms Amer. | 1–352 |
| Panama | | | Henderson, A. & I. Villalba | 2013 | A revision of Welfia (Arecaceae) | Phytotaxa | 119(1): 33–44 |
| 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 | Panamá | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |
| Peru | | | Grayum, M. H. | 2003 | Arecaceae. En: Manual de Plantas de Costa Rica. Vol. II. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 92: 201–293 |