Distribution: Widespread on both sides of the Cascades crest in Washington; Alaska to California, east across the northern half of North America to the Atlantic Coast; circumboreal.
Habitat: Moist to moderately dry, often rocky places, lowlands to above timberline
Spores: April-September
Origin: Native
Conservation Status: Not of concern
[none provided]
PNW Herbaria: Specimen records of Cystopteris fragilis in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Cystopteris fragilis checklist entry.
E-Flora BC: Cystopteris fragilis atlas page.
CalPhotos: Cystopteris fragilis photos.
USDA Plants: Cystopteris fragilis information.