| Name | Carex atrofusca subsp. minor (Boott) T. Koyama |
| Authorship | (Boott) T. Koyama |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex atrofusca Schkuhr |
| GUID | urn:lsid:ipni.org:names:879485-1 |
| Holdings | 19 Specimens held in the Harvard University Herbaria identified as Carex atrofusca subsp. minor (Boott) T. Koyama |
| Identification made in | [no date] (9), 2009 (3), 2014 (1), 2015 (4), 2024 (2) |