| Name | Erysiphe urticae (Wallroth) S. Blumer |
| Authorship | (Wallroth) S. Blumer |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 1933 Beitr. Kryptogamenfl. Schweiz 7(1): 224 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Erysiphe urticae (Wallroth) S. Blumer |
| Identification made in | [no date] (1), 1985 (3) |