| Name | Carex pensylvanica f. gracilifolia (Peck) Kükenthal |
| Authorship | (Peck) Kükenthal |
| Rank | Forma |
| Placed in | Carex pensylvanica Lamarck |
| GUID | urn:lsid:ipni.org:names:46844-2 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Carex pensylvanica f. gracilifolia (Peck) Kükenthal |
| Identification made in | [no date] (2) |