| Name | Sargassum fresenianum var. rigescens Grunow |
| Authorship | Grunow |
| Rank | Variety |
| NomenclaturalStatus | Unknown |
| Placed in | Sargassum fresenianum J. Agardh |
| Remarks | Created from Taxon Name Import: Sargassum fresenianum var. rigescens Grunow |
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