Aspleniaceae
Spleenwort Family
1 genera
3 species
3 subspecies and varieties
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Asplenium trichomanesmaidenhair spleenwort
Distribution: Throughout most of the United States; more common west of the Cascades in Washington and Oregon.
Habitat: Cliff crevices and talus slopes, generally where moist.
Origin: Native
ssp. quadrivalens – maidenhair spleenwort
ssp. trichomanes – maidenhair spleenwort
Asplenium viridegreen spleenwort
Distribution: Both sides of the Cascades crest in Washington; Alaska to California, east across northern North America to New England and the Canadian Maritimes; circumboreal.
Habitat: Cliff crevices, especially on limestone, often near or above timberline.
Origin: Native