| Name | Olax zenkeri Engler |
| Authorship | Engler |
| Rank | Species |
| Placed in | Olax |
| Citation | 1897 Nat. Pflanzenfam. [Engler & Prantl] 1: 146 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Olax zenkeri Engler |
| Identification made in | [no date] (2) |