| Name | Polystichum ambiguum Maxon |
| Authorship | Maxon |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Polystichum Roth |
| GUID | urn:lsid:ipni.org:names:207962-2 |
| Citation | 1912 Contr. U.S. Natl. Herb. 16: 49 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Polystichum ambiguum Maxon |
| Identification made in | [no date] (1), 1994 (1), 2011 (2) |
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