| Name | Alnus incana subsp. tchangbokii C. S. Chang |
| Authorship | C. S. Chang |
| Rank | Subspecies |
| Placed in | Alnus incana (Linnaeus) Moench |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Alnus incana subsp. tchangbokii C. S. Chang |
| Identification made in | 2011 (3) |
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