| Name | Porophyllum ruderale subsp. ruderale |
| Authorship | |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Porophyllum ruderale (Jacquin) Cassini |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Porophyllum ruderale subsp. ruderale |
| Identification made in | 1964 (2) |
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