| Name | Oncocalyx welwitschii (Engler) Polhill & Wiens |
| Authorship | (Engler) Polhill & Wiens |
| Rank | Species |
| Placed in | Oncocalyx |
| Remarks | [confirmed] [imported from GBIF] |
| Citation | 1992 Énum. Pl. Fleurs Afr. Trop. 2: 170 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Oncocalyx welwitschii (Engler) Polhill & Wiens |
| Identification made in | [no date] (4) |