| Name | Polystichum horizontale C. Presl |
| Authorship | C. Presl |
| Rank | Species |
| Placed in | Polystichum Roth |
| Citation | 1851 Epimel. Bot. 57 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Polystichum horizontale C. Presl |
| Identification made in | [no date] (8) |
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