| Name | Quercus canbyi f. karwinskii C. H. Müller |
| Authorship | C. H. Müller |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Quercus canbyi Trelease |
| Citation | 1936 J. Arnold Arbor. 17: 175 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Quercus canbyi f. karwinskii C. H. Müller |
| Identification made in | [no date] (1) |