| Name | Psilotum flaccidum Wallich ex Hook. & Grev. |
| Authorship | Wallich ex Hook. & Grev. |
| Rank | Species |
| Placed in | Psilotum Swartz |
| Citation | 1831 Bot. Misc. 2(6): 363 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Psilotum flaccidum Wallich ex Hook. & Grev. |
| Identification made in | [no date] (1) |