| Name | Sargassum affine J. Agardh |
| Authorship | J. Agardh |
| Rank | Species |
| Placed in | Sargassum C. Agardh |
| GUID | urn:lsid:marinespecies.org:taxname:502729 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sargassum affine J. Agardh |
| Identification made in | [no date] (1) |