| Name | Aphanizomenon flos-aquae (Linnaeus) Ralfs |
| Authorship | (Linnaeus) Ralfs |
| Rank | Species |
| Placed in | Aphanizomenon E. Morren ex Bornet & Flahault |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Aphanizomenon flos-aquae (Linnaeus) Ralfs |
| Identification made in | [no date] (1) |