1 species
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Cystopteris fragilisbladder fern, brittle fern, fragile fern
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
Origin: Native
Spores: April-September