| Name | Blechnum opacum Mettenius |
| Authorship | Mettenius |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Blechnum Linnaeus |
| GUID | urn:lsid:ipni.org:names:17059890-1 |
| Citation | 1861 Ann. Sci. Nat., Bot. ser. 4, 15: 69 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Blechnum opacum Mettenius |
| Identification made in | [no date] (1) |
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