| Name | Erigeron bonariensis f. filifolius Chodat & Hassler |
| Authorship | Chodat & Hassler |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Erigeron bonariensis Linnaeus |
| Citation | 1903 Bull. Herb. Boissier 3: 714 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Erigeron bonariensis f. filifolius Chodat & Hassler |
| Identification made in | [no date] (2), 1917 (1), 1983 (2) |