Vascular Plants - Dryopteridaceae - Gymnocarpium:
Gymnocarpium dryopteris
Page Author: David Giblin
common or northern oak fern 
Habit: herb
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Both sides of the Cascades in Washington; Alaska east across northern Canada, south to northern U.S., with disjunct populations scattered throughout western North America.
Habitat: Forest understory, often where moist
Accepted Name:
Gymnocarpium dryopteris (L.) Newman
Synonyms:
Dryopteris linnaeana C. Chr.
Lastrea dryopteris (L.) Bory
Phegopteris dryopteris (L.) Fée
Thelypteris dryopteris (L.) Slosson

Treated in Flora of the PNW as:
Additional Resources:

PNW Herbaria Specimens: View list of all Gymnocarpium dryopteris specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Gymnocarpium dryopteris specimens in the WTU Herbarium database.

Washington Flora Checklist: Gymnocarpium dryopteris treatment.

E-Flora BC: Gymnocarpium dryopteris atlas page.

CalPhotos: Gymnocarpium dryopteris images.

USDA Plants Database: Gymnocarpium dryopteris.
Additional photographs of Gymnocarpium dryopteris:
(click on a thumbnail to view larger photo)

Jim Riley

Clayton J. Antieau, 2004

Clayton J. Antieau, 2004

Bud Kovalchik

Al Dodson, 2006

Clayton J. Antieau, 2006

Ernie Buchanan, 2004

Ernie Buchanan, 2004
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Washington Native Plant Society
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