| Name | Oidium baccharidis Havrylenko & U. Braun |
| Authorship | Havrylenko & U. Braun |
| Rank | Species |
| Placed in | Oidium |
| Citation | 1998 Nova Hedwigia 66(3-4): 516 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Oidium baccharidis Havrylenko & U. Braun |
| Identification made in | [no date] (1) |