Bladder Fern, Brittle Bladderfern, Brittle Fern, Fragile Fern
Cystopteris fragilis
Synonyms: Cystopteris dickieana, Cystopteris fragilis var. fragilis, Polypodium fragile
![Bladder Fern, Brittle Bladderfern, Brittle Fern, Fragile Fern: Cystopteris fragilis (Synonyms: Cystopteris dickieana, Cystopteris fragilis var. fragilis, Polypodium fragile)](../../../cascade/mtadams/fern/cystopteris/fragilis1a.jpg)
The photo above shows brittle fern as seen between rocks on cliffs above the Klickitat River along the western edge of the Klickitat Canyon Natural Resources Conservation Area........April 11, 2008.
![Bladder Fern, Brittle Bladderfern, Brittle Fern, Fragile Fern: Cystopteris fragilis (Synonyms: Cystopteris dickieana, Cystopteris fragilis var. fragilis, Polypodium fragile)](../../../cascade/mtadams/fern/cystopteris/fragilis2a.jpg)
The photo above shows a view of the upper frond surface of brittle fern as seen in the Klickitat Canyon NRCA to the east of Mt. Adams.......June 22, 2008.
![Bladder Fern, Brittle Bladderfern, Brittle Fern, Fragile Fern: Cystopteris fragilis (Synonyms: Cystopteris dickieana, Cystopteris fragilis var. fragilis, Polypodium fragile)](../../../cascade/mtadams/fern/cystopteris/fragilis2b.jpg)
The photo above shows a close-up view of the underside of the frond of brittle fern as seen in the Klickitat Canyon NRCA to the east of Mt. Adams.......June 22, 2008.
- ![Bladder Fern, Brittle Bladderfern, Brittle Fern, Fragile Fern: Cystopteris fragilis (Synonyms: Cystopteris dickieana, Cystopteris fragilis var. fragilis, Polypodium fragile)](../../../cascade/mtadams/fern/cystopteris/fragilis21b.jpg)
What appears to be fragile fern as seen on andesite rock outcrops along the Climbers Trail above Hellroaring Overlook at the southeastern corner of Mount Adams..........August 12, 2013.
Paul Slichter