| Colombia | | | Pan, F. J. & J. L. Brewbaker | 1988 | Cytological studies in the genus Leucaena Benth. | Cytologia | 53: 393–399 |
| Costa Rica | | | Janzen, D. H. & R. L. Liesner | 1980 | Annotated check-list of plants of lowland Guanacaste province, Costa Rica, exclusive of grasses and non-vascular Cryptogams | Brenesia | 18: 15–90 |
| Costa Rica | Guanacaste | | Janzen, D. H. & R. L. Liesner | 1980 | Annotated check-list of plants of lowland Guanacaste province, Costa Rica, exclusive of grasses and non-vascular Cryptogams | Brenesia | 18: 15–90 |
| Ecuador | | | 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 |
| 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 | | | Brewbaker, J. L. & G. M. Ito | 1980 | Taxonomic studies of the genus Leucaena | Leucaena Newslett. | 1: 41–42 |
| Peru | | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Peru | Apurimac | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Peru | Cajamarca | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Peru | Cusco | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Peru | Huánuco | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Peru | La Libertad | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Peru | Lima | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Peru | Piura | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Venezuela | | | Macbride, J. F. | 1943 | Leguminosae | Publ. Field Mus. Nat. Hist., Bot. Ser. | 13(3/1): 3–507 |
| Venezuela | | | Pan, F. J. & J. L. Brewbaker | 1988 | Cytological studies in the genus Leucaena Benth. | Cytologia | 53: 393–399 |
| Venezuela | | | Steyermark, J. A. & O. Huber | 1978 | (none) | Fl. Avila | 1–971 |
| Venezuela | Distrito Capital | | Steyermark, J. A. & O. Huber | 1978 | (none) | Fl. Avila | 1–971 |