Struthiopteris fallax

{{Short description|Species of fern in the family Blechnaceae}}

{{Speciesbox

| image = Källkambräken - Blechnum spicant var.fallax0125 - Flickr - Ragnhild & Neil Crawford.jpg

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| genus = Struthiopteris

| species = fallax

| authority = (Lange) S.Molino, Gabriel y Galán & Wasowicz

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|title = Synonyms

|Blechnum spicant var. fallax|J. E. Lange

|Struthiopteris spicant var. fallax|(J.E.Lange) Wasowicz & Gabriel y Galán

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Struthiopteris fallax is a small species of fern in the family Blechnaceae.{{Catalogue of Life

|id=536WR

|title=Stuthiopteris fallax (Lange) S.Molino, Gabriel y Galán & Wasowicz

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|access-date=14 April 2021

}} It is endemic to Iceland where it lives in close proximity to hot springs.{{cite journal |last1=Molino |first1=Sonia |last2=Gabriel y Galán |first2=José M. |last3=Wasowicz |first3=Pawel |last4=de la Fuente |first4=Pablo |last5=Sessa |first5=Emily B. |date=2019 |title=The Struthiopteris spicant (Blechnaceae, Polypodiopsida) complex in Western Europe, with proposals for taxonomic and nomenclatural changes |url= |journal=Plant Systematics and Evolution |volume=305 |issue= |pages=255-268 |doi=10.1007/s00606-019-1565-0 |access-date=}}

In Iceland it is locally red listed as an endangered species (EN)Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History] (1996). [http://utgafa.ni.is/valistar/valisti_1.pdf Válisti 1: Plöntur.] (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands. but as of April 2021 it has not been assessed by the IUCN.