| Name | Calliergon stramineum var. patens (Lindberg) G. Roth |
| Authorship | (Lindberg) G. Roth |
| Rank | Variety |
| Placed in | Calliergon stramineum (Dickson ex Bridel) Kindberg |
| Citation | 1904 Eur. Laubm. 2: 575 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Calliergon stramineum var. patens (Lindberg) G. Roth |
| Identification made in | 2018 (2) |
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