| Name | Quercus canbyi f. attenuata C. H. Müller |
| Authorship | C. H. Müller |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Quercus canbyi Trelease |
| Citation | 1936 J. Arnold Arbor. 17: 175 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Quercus canbyi f. attenuata C. H. Müller |
| Identification made in | [no date] (1), 1994 (1), 2023 (1) |
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