| Name | Arethusa grandiflora S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Arethusa Linnaeus |
| GUID | urn:lsid:ipni.org:names:617070-1 |
| Citation | 1891 Proc. Amer. Acad. Arts 26: 154 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Arethusa grandiflora S. Watson |
| Identification made in | 1983 (1) |