| Name | Achnanthidium jackii Rabenhorst |
| Authorship | Rabenhorst |
| Rank | Species |
| Placed in | Achnanthidium Kützing |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Achnanthidium jackii Rabenhorst |
| Identification made in | [no date] (1) |
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