| Name | Petalanthera Nuttall |
| Authorship | Nuttall |
| Rank | Genus |
| NomenclaturalStatus | LaterHomonym |
| Placed in | Loasaceae |
| Contains | Petalanthera hispida Nutt. |
| Remarks | later homonym (non Nees & Mart. 1833). Type: P. hispida Nutt. |
| GUID | urn:lsid:ipni.org:names:25008-1 |
| Citation | 1834 J. Acad. Nat. Sci. Philadelphia 7: 107 |