| Name | Haplopappus nanus (Nuttall) Eaton |
| Authorship | (Nuttall) Eaton |
| Rank | Species |
| Placed in | Haplopappus Cassini |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Haplopappus nanus (Nuttall) Eaton |
| Identification made in | [no date] (4) |