| Name | Erigeron sionis Cronquist |
| Authorship | Cronquist |
| Rank | Species |
| Placed in | Erigeron Linnaeus |
| Citation | 1947 Brittonia 6: 258 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Erigeron sionis Cronquist |
| Identification made in | [no date] (2), 2001 (2) |
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