| Name | Carex richardsonii f. exserta Fernald |
| Authorship | Fernald |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Carex richardsonii R. Brown |
| Citation | 1942 Rhodora 44: 290 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Carex richardsonii f. exserta Fernald |
| Identification made in | [no date] (1) |