Page authors: Don Knoke, David Giblin
Gymnocarpium disjunctum
Pacific oak-fern, western oak-fern

Distribution: Occurring in forested areas on both sides of the Cascades crest except in southeastern Washington; Alaska to Oregon, east to Alberta, Idaho, and Montana, and disjunct in Wyoming; circumboreal.

Habitat: Moist woods, streambanks and wet cliffs.

Origin: Native

Conservation Status: Not of concern


[none provided]

Accepted Name:
Gymnocarpium disjunctum (Rupr.) Ching
Publication: Acta Phytotax. Sin. 10: 304. 1965.

Synonyms & Misapplications:
Dryopteris disjuncta (Rupr.) C.V. Morton
Gymnocarpium dryopteris (L.) Newman ssp. disjunctum (Rupr.) Sarvela
Gymnocarpium dryopteris (L.) Newman var. disjunctum (Rupr.) Ching [VPPNW1]
Polypodium dryopteris L. var. disjunctum Rupr.
Additional Resources:

PNW Herbaria: Specimen records of Gymnocarpium disjunctum in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Gymnocarpium disjunctum checklist entry.

E-Flora BC: Gymnocarpium disjunctum atlas page.

CalPhotos: Gymnocarpium disjunctum photos.

USDA Plants: Gymnocarpium disjunctum information.

17 photographs:
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