| Name | Exostema formosum Chamisso & Schlechtendal ex de Candolle |
| Authorship | Chamisso & Schlechtendal ex de Candolle |
| Rank | Species |
| Placed in | Exostema (Persoon) Bonpland |
| Citation | 1830 Prodr. [A. P. de Candolle] 4: 361 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Exostema formosum Chamisso & Schlechtendal ex de Candolle |
| Identification made in | 1999 (2) |