| Name | Pentachaeta lyonii A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Pentachaeta Nuttall |
| GUID | urn:lsid:ipni.org:names:188074-2 |
| Citation | 1886 Syn. Fl. N. Amer. 1(2): 446 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Pentachaeta lyonii A. Gray |
| Identification made in | [no date] (2), 1970 (3), 2007 (2) |