| Name | Haplopappus armerioides A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| Placed in | Haplopappus Cassini |
| Citation | 1884 Syn. Fl. N. Amer. 1(2): 132. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Haplopappus armerioides A. Gray |
| Identification made in | [no date] (1) |