| Name | Athyrium filix-femina var. angustum (Willdenow) G. Lawson |
| Authorship | (Willdenow) G. Lawson |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Athyrium filix-femina (Linnaeus) Roth |
| GUID | urn:lsid:ipni.org:names:1166284-2 |
| Holdings | 753 Specimens held in the Harvard University Herbaria identified as Athyrium filix-femina var. angustum (Willdenow) G. Lawson |
| Identification made in | [no date] (736), 1989 (1), 2011 (7), 2012 (5), 2013 (1), 2018 (3) |
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