| Name | Haplopappus lyallii A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Haplopappus Cassini |
| Contains | Haplopappus lyallii var. hallii A. Gray |
| GUID | urn:lsid:ipni.org:names:117635-2 |
| Citation | 1863 Proc. Acad. Nat. Sci. Philadelphia 1863: 64 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Haplopappus lyallii A. Gray |
| Identification made in | [no date] (1) |
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