| Name | Argemone squarrosa subsp. squarrosa |
| Authorship | |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Argemone squarrosa Greene |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Argemone squarrosa subsp. squarrosa |
| Identification made in | 1957 (1) |
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