| Name | Erigeron pygmaeus Greene |
| Authorship | Greene |
| Rank | Species |
| Placed in | Erigeron Linnaeus |
| Citation | 1897 Fl. Francisc. 390 |
| Holdings | 18 Specimens held in the Harvard University Herbaria identified as Erigeron pygmaeus Greene |
| Identification made in | [no date] (18) |