| Name | Bidens eatoni var. mutabilis Fassett |
| Authorship | Fassett |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Bidens eatoni Fernald |
| Citation | 1925 Rhodora 27: 143 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Bidens eatoni var. mutabilis Fassett |
| Identification made in | [no date] (1) |