Athyrium
lady-fern
2 species
2 subspecies and varieties
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Athyrium distentifoliumalpine lady-fern
Distribution: Occurring on both sides of the Cascades crest in Washington.
Habitat: Open, rocky slopes and along streams at mid- to high elevations in the mountains.
Origin: Native
ssp. americanum – American alpine lady fern
Athyrium filix-feminalady-fern
Distribution: Circumboreal; throughout the Pacific Northwest
Habitat: Common in moist woods and meadows, low to mid-elevations
Origin: Native
ssp. cyclosorum – lady fern, northwestern lady fern