| Name | Porophyllum nelsonii B. L. Robinson & Greenman |
| Authorship | B. L. Robinson & Greenman |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Porophyllum Guettard |
| GUID | urn:lsid:ipni.org:names:208428-2 |
| Citation | 1896 Proc. Amer. Acad. Arts 32: 32 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Porophyllum nelsonii B. L. Robinson & Greenman |
| Identification made in | [no date] (2), 1911 (2), 2008 (2) |