| Name | Sargassum thunbergii (Mertens ex Roth) Kuntze |
| Authorship | (Mertens ex Roth) Kuntze |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Sargassum C. Agardh |
| Contains | Sargassum thunbergii f. latifolium Yendo Sargassum thunbergii f. nipponicum Yendo Sargassum thunbergii f. swartzianum (Yendo) Okamura Sargassum thunbergii f. typicum Yendo |
| Remarks | Created from Taxon Name Import: Sargassum thunbergii (Mertens ex Roth) Kuntze |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Sargassum thunbergii (Mertens ex Roth) Kuntze |
| Identification made in | [no date] (2) |