| Name | Erysiphe trifoliorum (Wallroth) U. Braun |
| Authorship | (Wallroth) U. Braun |
| Rank | Species |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 2010 Mycotaxon 112: 175 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe trifoliorum (Wallroth) U. Braun |
| Identification made in | [no date] (1) |