| Name | Rumex pseudonatronatus (Borbás) Murbeck |
| Authorship | (Borbás) Murbeck |
| Rank | Species |
| Placed in | Rumex Linnaeus |
| Citation | 1899 Bot. Not. 1899: 16 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Rumex pseudonatronatus (Borbás) Murbeck |
| Identification made in | [no date] (2) |