| Name | Johnsonia Adanson |
| Authorship | Adanson |
| Rank | Genus |
| NomenclaturalStatus | NomLeg |
| Placed in | Meliaceae |
| Contains | Johnsonia sp. |
| Remarks | [Jul-Aug 1763]; later homonym (non P. Miller 1754 (nom. rej.), nec R. Brown 1810 (nom. cons.)); nom. syn. of Cedrela P. Browne (1756). |
| Citation | 1763 Fam. Pl. (Adanson) 2: 343 |