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Photo © ajwick24, all rights reserved
Cougar Mountain Regional Wi... (Google, OSM) Details Hide details

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I have never seen a fern like this in Washington! Unfortunately it was the only one in the area. It's located next to a stream at the entrance of the park. I noticed other plants that may have been carried from a horticultural nursery down the highway. You never know what's native!

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Comments & Identifications

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Maidenhair Ferns - Photo (c) designonze, all rights reserved, uploaded by Gabriela Castro
everett's ID: Maidenhair Ferns (Genus Adiantum)
Posted by everett over 4 years ago (Flag)
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It looks like Adiantum pedatum of the east, which is not native for you. I'm not sure what other natives that you have other than Adiantum aleuticum, which does not fan out as nicely

Posted by everett over 4 years ago (Flag)
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western maidenhair fern - Photo (c) J Brew, some rights reserved (CC BY-NC-SA), uploaded by John Brew
loarie's ID: western maidenhair fern (Adiantum aleuticum)

Shoot - thanks everett, I meant Adiantum aleuticum (which is the only five-fingered fern in Washington: http://www.wnps.org/photogallery_ferns.html ) and not A. pedatum.
I've definitely seen ones here in Northern CA that look like the photograph.

Posted by loarie over 4 years ago (Flag)
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western maidenhair fern - Photo (c) J Brew, some rights reserved (CC BY-NC-SA), uploaded by John Brew
ajwick24's ID: western maidenhair fern (Adiantum aleuticum)
Posted by ajwick24 over 4 years ago (Flag)
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Yes, I assume that it's more splayed out in the shade. Here in the east we only get this species on serpentine.

Posted by everett over 4 years ago (Flag)
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Posted by chriswbrown over 4 years ago (Flag)
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Posted by richard_olmstead over 4 years ago (Flag)
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western maidenhair fern - Photo (c) J Brew, some rights reserved (CC BY-NC-SA), uploaded by John Brew
ajwick24's ID: western maidenhair fern (Adiantum aleuticum)
western maidenhair fern - Photo (c) J Brew, some rights reserved (CC BY-NC-SA), uploaded by John Brew
Community ID: western maidenhair fern (Adiantum aleuticum)
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loarie chriswbrown richard_olmstead 3 people agree
Maidenhair Ferns - Photo (c) designonze, all rights reserved, uploaded by Gabriela Castro
everett's ID: Maidenhair Ferns (Genus Adiantum)
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Observation © ajwick24
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