| Name | Porophyllum riparium Anzuinelli, Schiavinato & Adr. Bartoli |
| Authorship | Anzuinelli, Schiavinato & Adr. Bartoli |
| Rank | Species |
| Placed in | Porophyllum Guettard |
| Citation | 16 Jul 2024 Phytotaxa 660(1): 66 |
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Porophyllum riparium Anzuinelli, Schiavinato & Adr. Bartoli |
| Identification made in | 2025 (7) |