| Name | Ophioglossum gramineum Willdenow |
| Authorship | Willdenow |
| Rank | Species |
| Placed in | Ophioglossum Linnaeus |
| Citation | 1802 Abh. Kurfürstl.-Mainz. Akad. Nützl. Wiss. Erfurt. 5(2) |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Ophioglossum gramineum Willdenow |
| Identification made in | [no date] (4) |