| Name | Rhynchospora cephalantha f. controversa Fernald & Gale |
| Authorship | Fernald & Gale |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Rhynchospora cephalantha A. Gray |
| Citation | 1944 Rhodora 46: 110 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Rhynchospora cephalantha f. controversa Fernald & Gale |
| Identification made in | [no date] (1) |
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