| Name | Petalonyx A. Gray |
| Authorship | A. Gray |
| Rank | Genus |
| NomenclaturalStatus | NomLeg |
| Placed in | Loasaceae |
| Contains | Petalonyx crenatus A. Gray ex S. Watson Petalonyx gilmanii Munz Petalonyx linearis Greene Petalonyx nitidus S. Watson Petalonyx parryi A. Gray Petalonyx sp. Petalonyx thurberi A. Gray |
| Remarks | Alt. publ.: Mem. Amer. Acad. Arts n.s., 5(2): 319. post May 1855; Type: P. thurberi A. Gray |
| GUID | urn:lsid:ipni.org:names:327682-2 |
| Citation | 1854 Pl. Nov. Thurb. 319 |