| Name | Diplazium welwitschii (Hooker) Diels |
| Authorship | (Hooker) Diels |
| Rank | Species |
| Placed in | Diplazium Swartz |
| Citation | 1899 Nat. Pflanzenfam. [Engler & Prantl] 1(4): 226 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Diplazium welwitschii (Hooker) Diels |
| Identification made in | [no date] (1) |