| Name | Alnus incana subsp. rugosa (Du Roi) R. T. Clausen |
| Authorship | (Du Roi) R. T. Clausen |
| Rank | Subspecies |
| NomenclaturalStatus | Unknown |
| Placed in | Alnus incana (Linnaeus) Moench |
| GUID | urn:lsid:ipni.org:names:9423-2 |
| Holdings | 425 Specimens held in the Harvard University Herbaria identified as Alnus incana subsp. rugosa (Du Roi) R. T. Clausen |
| Identification made in | [no date] (395), 1974 (19), 1990 (1), 1995 (2), 2011 (1), 2012 (5), 2017 (2) |
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