| Name | Popowia ferruginea Engler & Diels |
| Authorship | Engler & Diels |
| Rank | Species |
| Placed in | Popowia |
| Citation | 1901 Monogr. Afrik. Pflanzen.-Fam. 6: 46 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Popowia ferruginea Engler & Diels |
| Identification made in | [no date] (1) |