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
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

Martin Schrattenholzer, 2017
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Washington Native Plant Society
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