| Name | Erysiphe communis var. urticacearum (Rabenhorst) Westendorp |
| Authorship | (Rabenhorst) Westendorp |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe communis (Wallroth) Schlechtendal: Fries |
| Citation | 1854 Bull. Acad. Roy. Sci. Belgique 21(2): 231 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe communis var. urticacearum (Rabenhorst) Westendorp |
| Identification made in | [no date] (1) |