| Name | Fucus distichus var. evanescens (C. Agardh) Powell |
| Authorship | (C. Agardh) Powell |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Fucus distichus Linnaeus |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Fucus distichus var. evanescens (C. Agardh) Powell |
| Identification made in | [no date] (2), 2009 (1) |