| Name | Carex nutans var. japonica Franchet & Savatier |
| Authorship | Franchet & Savatier |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex nutans Host |
| Citation | 1879 Enum. Pl. Jap. 2: 154 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Carex nutans var. japonica Franchet & Savatier |
| Identification made in | 2007 (1) |