| Name | Argemone munita subsp. robusta G. B. Ownbey |
| Authorship | G. B. Ownbey |
| Rank | Subspecies |
| Placed in | Argemone munita E. J. Durand & Hilgard |
| Citation | 1958 Mem. Torrey Bot. Club 21(1): 73, fig. 10 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Argemone munita subsp. robusta G. B. Ownbey |
| Identification made in | 1996 (1) |