| Name | Polystichum ×machaerophyllum Slosson |
| Authorship | Slosson |
| Rank | Species |
| Placed in | Polystichum Roth |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Polystichum ×machaerophyllum Slosson |
| Identification made in | 2022 (2) |
| Name | Polystichum ×machaerophyllum Slosson |
| Authorship | Slosson |
| Rank | Species |
| Placed in | Polystichum Roth |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Polystichum ×machaerophyllum Slosson |
| Identification made in | 2022 (2) |