| Name | Plagiomnium cuspidatum (Hedwig) T. J. Koponen |
| Authorship | (Hedwig) T. J. Koponen |
| Rank | Species |
| Placed in | Plagiomnium |
| Citation | 1968 Ann. Bot. Fenn. 5(2): 146 |
| Holdings | 441 Specimens held in the Harvard University Herbaria identified as Plagiomnium cuspidatum (Hedwig) T. J. Koponen |
| Identification made in | [no date] (428), 2016 (6), 2017 (2), 2018 (5) |
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