| Name | Polystichum attenuatum Tagawa & K. Iwatsuki |
| Authorship | Tagawa & K. Iwatsuki |
| Rank | Species |
| Placed in | Polystichum Roth |
| GUID | urn:lsid:ipni.org:names:17450810-1 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polystichum attenuatum Tagawa & K. Iwatsuki |
| Identification made in | 2016 (1) |