| Name | Porophyllum angustissimum Gardner |
| Authorship | Gardner |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Porophyllum Guettard |
| GUID | urn:lsid:ipni.org:names:239292-1 |
| Citation | 1848 London J. Bot. 7: 410 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Porophyllum angustissimum Gardner |
| Identification made in | [no date] (3), 1911 (2), 1964 (3), 2008 (2) |