| Name | Polystichum spongiosum Maxon |
| Authorship | Maxon |
| Rank | Species |
| Placed in | Polystichum Roth |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polystichum spongiosum Maxon |
| Identification made in | 2023 (1) |
| Name | Polystichum spongiosum Maxon |
| Authorship | Maxon |
| Rank | Species |
| Placed in | Polystichum Roth |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polystichum spongiosum Maxon |
| Identification made in | 2023 (1) |