| Name | Argemone grandiflora subsp. armata G. B. Ownbey |
| Authorship | G. B. Ownbey |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Argemone grandiflora Sweet |
| GUID | urn:lsid:ipni.org:names:18803-2 |
| Citation | 1958 Mem. Torrey Bot. Club 21(1): 127 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Argemone grandiflora subsp. armata G. B. Ownbey |
| Identification made in | [no date] (1) |