| Name | Porophyllum millspaughii B. L. Robinson |
| Authorship | B. L. Robinson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Porophyllum Guettard |
| Citation | 1900 Publ. Field Columb. Mus., Bot. Ser. 2: 109 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Porophyllum millspaughii B. L. Robinson |
| Identification made in | [no date] (1), 1911 (1), 2014 (1) |