| Name | Alnus rugosa var. americana (Regel) Fernald |
| Authorship | (Regel) Fernald |
| Rank | Variety |
| Placed in | Alnus rugosa (Du Roi) Sprengel |
| Citation | 1945 Rhodora 47: 350 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Alnus rugosa var. americana (Regel) Fernald |
| Identification made in | [no date] (1) |
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